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Advanced Analog Technology, Inc.
AAT8640 Series
Product information presented is current as of publication date. Details are subject to change without notice.
ONE-CELL LI-ION BATTERY PROTECTION IC
FEATURES
Ideal for One-Cell Rechargeable Li-Ion Battery Packs High Accuracy Voltage Detection Low Current Consumption:
GENERAL DESCRIPTION
The AAT8640 series are designed to protect one-cell rechargeable Li-Ion battery pack against over-charge, over-discharge, over-current and short circuit. They use CMOS process to provide high accuracy voltage detection and low current consumption. Each of the AAT8640 devices incorporates voltage comparators, bandgap reference voltage generator, signal delay circuit, short circuit detector, and digital control circuit. In the charge process, when the battery voltage is charged to a value greater than VC1 (Over-Charge Threshold Voltage), the output of C out pin switches to the low level, i.e., the VN pin level. The output of C out pin will switch to high level
3A Supply Current (Typical) 0.1A Shutdown Current
3-Level Over Current Detection: Over-Current Level 1 /Over Current Level 2 / Short Circuit Wide Operating - 40 C to 85 C Temperature Range:
Small SOT25 Package
PIN CONFIGURATION
TOP VIEW
VN
VDD
COUT
when the battery voltage falls lower than VC2 (Over-Charge Release Voltage), or when the charger is disconnected from the battery pack and the battery voltage level ranges between VC1 and VC2. During the discharge process, when the battery voltage drops to a value lower than VD1 (Over-Discharge Threshold Voltage), the output of D out pin switches to low level immediately after the internal delay time elapses. The output of D out pin will switch to high level when the battery voltage is at a level higher than VD 2 (Over-Discharge Release Voltage).
GND
D OUT
(SOT25)
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Page 1 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
Over current level 1 voltage ( VOC1 ) is used to monitor the amount of discharge current. If the discharge current is high enough to cause VN pin voltage increase to a value greater than VOC1 , the output of D out pin will switch to a low level after a delay time t OC1 . If the load is removed from battery pack, the output of D out will change to a high level again. The mechanism of short circuit protection is identical to a discharge current. If the short circuit current is high enough to cause VN pin voltage increase to greater than Vshort , the output of D out pin will move to the low level after a delay time t short , and the output of D out level will change to high when the load is removed from battery pack.
BLOCK DIAGRAM:
VDD
D out
C out
GND
VN
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Page 2 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
PIN DESCRIPTION
PIN NO. NAME I/O
1 2 3 4 5 VN VDD GND D out
C out
DESCRIPTION
Voltage Detection Pin Between VN and GND Power Supply Input Pin Ground Discharge Control Pin which Connects to External MOSFET Gate Charge Control Pin which Connects to External MOSFET Gate.
I I O O
ABSOLUTE MAXIMUM RATINGS
CHARACTERISTICS
Supply Voltage VN Pin Input Voltage
D out Pin Output Voltage C out Pin Output Voltage
SYMBOL
VDD VVN VDout VCout Pd TC
VALUE
-0.3 to 8.0 VDD - 20 to VDD + 0.3 -0.3 to VDD + 0.3 VVN - 0.3 to VDD + 0.3
UNIT
V V V V mW

Power Dissipation Operating Temperature Range Storage Temperature Range
150
-40 to +85 -40 to +125
C C
Tstorage
RECOMMENDED OPERATING CONDITIONS
TEST CONDITION
Supply Voltage, VDD
D out Output Voltage C out Output Voltage
MIN
1.5 GND VN
MAX
7.0
VDD VDD
UNIT
V V V
Voltage Defined as VDD to GND
OPERATION VOLTAGE AND OPERATION CURRENT
PARAMETER
Supply Current at Normal Operation Mode Standby Current at Power Down Mode Operation Voltage between VDD and VN
TEST CONDITION
VDD =3.3V; VN=0V; GND=0V
MIN
1.5
TYP
3.0 -
MAX
6.0 0.1 20.0
UNIT
A A
V
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Page 3 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
AAT8640A DETECTION VOLTAGE AND DELAY TIME ( 25 C )
PARAMETER
Over Charge Threshold Voltage Over Charge Release Voltage Over Discharge Threshold Voltage Over Discharge Release Voltage Over Charge Delay Time Over Discharge Delay Time Over Current Level 1 Detection Voltage Over Current Level 2 Detection Voltage
SYMBOL
VC1 VC 2 VD1 VD 2 t C1 t D1 VOC1
TEST CONDITION
Detect Rising Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Rising Edge of Supply Voltage VDD = 3.6V to 4.5V
VDD = 3.6V to 2.4V
MIN
4.275
TYP
4.325
MAX
4.375 VC1-0.15 2.580 VD1+0.5 1.300 162.5 170
UNIT
V V V V s ms mV
VC1-0.35 VC1-0.25 2.420 VD1+0.3 0.700 2.500 VD1+0.4 1.000 125.0 150
VOC 2
Short Circuit Detection Voltage Over Current Level 1 Detection Delay Time Over Current Level 2 Detection Delay Time Short Circuit Detection Delay Time Charger Detection Voltage
C out High Level Resistance
Vshort
87.5 Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC1 130 Delay Time) Detect Rising Edge of "VN" Pin Voltage ( D out Response 400 with tOC2 Delay Time) VDD = 3.0V , Detect Rising Edge of "VN" Pin Voltage ( D out VDD -1.7 Response with t short Delay Time)
VDD = 3.0V
500
600
mV
VDD -1.3
VDD - 0.9
V
t OC1 t OC 2 t short VCHR R COH R COL R DOH R DOL R VND R VNG
5.6 1.4 1.1
8.0 2.0 2.0 10
10.4 2.6 3.4 50
-0.6
ms ms ms
s
Room Temp. Low or High Temp. VDD = 3.0V
VDD = 3.0V
C out Low Level Resistance
D out High Level Resistance D out Low Level Resistance
Detect Rising Edge of " D out " Pin Voltage (when VD1VDD VD2) VDD = 3.5V ; C out = 3.0V ; VN = 0V VDD = 4.5V ; C out = 0.5V ; VN = 0V
VDD = 3.5V ; D out = 3.0V ; VN = 0V VDD = 1.8V ; D out = 0.5V ; VN = 1.8V VDD = 1.8V ; VN = 0V VDD = 3.5V ; VN = 3.5V
-2.0
-1.3
V
k k k k k k
1 150 2.5 2.5 100 50
2 602 5.0 5.0 300 150
10 2,380 10.0 10.0 900 300
Internal Resistance between VN and VDD Internal Resistance between VN and GND
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Page 4 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
AAT8640B DETECTION VOLTAGE AND DELAY TIME (25)
PARAMETER
Over Charge Threshold Voltage Over Charge Release Voltage Over Discharge Threshold Voltage Over Discharge Release Voltage Over Charge Delay Time Over Discharge Delay Time Over Current Level 1 Detection Voltage Over Current Level 2 Detection Voltage
SYMBOL
VC1 VC 2 VD1 VD 2 t C1 t D1 VOC1
TEST CONDITION
Detect Rising Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Rising Edge of Supply Voltage VDD = 3.6V to 4.5V
VDD = 3.6V to 2.2V
MIN
4.300
TYP
4.350
MAX
4.400
UNIT
V V V V s ms mV
VC1-0.30 VC1-0.20 VC1-0.10 2.220 VD1+0.6 0.088 22.4 130 2.300 VD1+0.7 0.125 32.0 150 2.380 VD1+0.8 0.163 41.6 170
VOC 2
Short Circuit Detection Voltage Over Current Level 1 Detection Delay Time Over Current Level 2 Detection Delay Time Short Circuit Detection Delay Time Charger Detection Voltage
C out High Level Resistance C out Low Level Resistance D out High Level Resistance D out Low Level Resistance
Vshort
Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC1 Delay Time) Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC2 Delay Time) VDD = 3.0V , Detect Rising Edge of "VN" Pin Voltage ( D out Response with t short Delay Time)
VDD = 3.0V
400
500
600
mV
VDD -1.7
VDD -1.3
VDD - 0.9
V
t OC1 t OC 2 t short VCHR R COH R COL R DOH R DOL R VND R VNG
2.8 1.4 1.1
4.0 2.0 2.0 10
5.2 2.6 3.4 50
-0.6
ms ms ms
s
Room Temp. Low or High Temp. VDD = 3.0V
VDD = 3.0V
Detect Rising Edge of " D out " Pin Voltage (when VD1VDDVD2) VDD = 3.5V ; C OUT = 3.0V ; VN = 0V VDD = 4.5V ; C OUT = 0.5V ; VN = 0V
VDD = 3.5V ; D out = 3.0V ; VN = 0V VDD = 1.8V ; D out = 0.5V ; VN = 1.8V VDD = 1.8V ; VN = 0V VDD = 3.5V ; VN = 3.5V
-2.0
-1.3
V
k k k k k k
1 150 2.5 2.5 100 50
2 602 5.0 5.0 300 150
10 2,380 10.0 10.0 900 300
Internal Resistance between VN and VDD Internal Resistance between VN and GND
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Page 5 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
AAT8640C DETECTION VOLTAGE AND DELAY TIME (25)
PARAMETER
Over Charge Threshold Voltage Over Charge Release Voltage Over Discharge Threshold Voltage Over Discharge Release Voltage Over Charge Delay Time Over Discharge Delay Time Over Current Level 1 Detection Voltage Over Current Level 2 Detection Voltage
SYMBOL
VC1 VC 2 VD1 VD 2 t C1 t D1 VOC1
TEST CONDITION
Detect Rising Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Rising Edge of Supply Voltage VDD = 3.6V to 4.5V
VDD = 3.6V to 2.2V
MIN
4.250
TYP
4.300
MAX
4.350
UNIT
V V V V s ms mV
VC1-0.30 VC1-0.20 VC1-0.10 2.220 VD1-0.08 0.700 87.5 2.300 VD1 1.000 125.0 100 2.380 VD1+0.08 1.300 162.5 120
VOC 2
Short Circuit Detection Voltage Over Current Level 1 Detection Delay Time Over Current Level 2 Detection Delay Time Short Circuit Detection Delay Time Charger Detection Voltage
C out High Level Resistance C out Low Level Resistance D out High Level Resistance D out Low Level Resistance
Vshort
Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC1 80 Delay Time) Detect Rising Edge of "VN" Pin Voltage ( D out Response 400 with tOC2 Delay Time) VDD = 3.0V , Detect Rising Edge of "VN" Pin Voltage ( D out VDD -1.7 Response with t short Delay Time)
VDD = 3.0V
480
600
mV
VDD - 1.3
VDD - 0.9
V
t OC1 t OC 2 t short VCHR R COH R COL R DOH R DOL R VND R VNG
5.6 1.4 1.1
8.0 2.0 2.0 10
10.4 2.6 3.4 50
-0.6
ms ms ms
Room Temp. Low or High Temp. VDD = 3.0V
VDD = 3.0V
s
V
k k k k k k
Detect Rising Edge of " D out " Pin Voltage (when VD1VDDVD2) VDD = 3.5V ; C out = 3.0V ; VN = 0V
VDD = 4.5V ; C out = 0.5V ; VN = 0V VDD = 3.5V ; D out = 3.0V ; VN = 0V VDD = 1.8V ; D out = 0.5V ; VN = 1.8V VDD = 1.8V ; VN = 0V VDD = 3.5V ; VN = 3.5V
-2.0
-1.3
1 150 2.5 2.5 100 50
2 602 5.0 5.0 300 150
10 2,380 10.0 10.0 900 300
Internal Resistance between VN and VDD Internal Resistance between VN and GND
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Page 6 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
AAT8640D DETECTION VOLTAGE AND DELAY TIME (25)
PARAMETER
Over Charge Threshold Voltage Over Charge Release Voltage Over Discharge Threshold Voltage Over Discharge Release Voltage Over Charge Delay Time Over Discharge Delay Time Over Current Level 1 Detection Voltage Over Current Level 2 Detection Voltage
SYMBOL
VC1 VC 2 VD1 VD 2 t C1 t D1 VOC1
TEST CONDITION
Detect Rising Edge Voltage Detect Falling Edge Voltage Detect Falling Edge Voltage Detect Rising Edge Voltage VDD = 3.6V to 4.5V
VDD = 3.6V to 2.2V
MIN
4.230 VC1-0.30 2.201 VD1-0.08 0.700 87.5 110
TYP
4.280 VC1-0.20 2.281 VD1 1.000 125.0 130
MAX
4.330 VC1-0.10 2.361 VD1+0.08 1.300 162.5 150
UNIT
V V V V s ms mV
of Supply of Supply of Supply of Supply
VOC 2
Short Circuit Detection Voltage Over Current Level 1 Detection Delay Time Over Current Level 2 Detection Delay Time Short Circuit Detection Delay Time Charger Detection Voltage
C out High Level Resistance C out Low Level Resistance D out High Level Resistance D out Low Level Resistance
Vshort
Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC1 Delay Time) Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC2 Delay Time) VDD = 3.0V , Detect Rising Edge of "VN" Pin Voltage ( D out Response with t short Delay Time)
VDD = 3.0V
400
490
600
mV
VDD -1.7
VDD -1.3
VDD - 0.9
V
t OC1 t OC 2 t short VCHR R COH R COL R DOH R DOL R VND R VNG
5.6 1.4 1.1
8.0 2.0 2.0 10
10.4 2.6 3.4 50
-0.6
ms ms ms
s
Room Temp. Low or High Temp. VDD = 3.0V
VDD = 3.0V
Detect Rising Edge of " D out " Pin Voltage (when VD1VDDVD2) VDD = 3.5V ; C out = 3.0V ; VN = 0V
VDD = 4.5V ; C out = 0.5V ; VN = 0V VDD = 3.5V ; D out = 3.0V ; VN = 0V VDD = 1.8V ; D out = 0.5V ; VN = 1.8V VDD = 1.8V ; VN=0V VDD = 3.5V ; VN = 3.5V
-2.0
-1.3
V
k k k k k k
1 150 2.5 2.5 100 50
2 602 5.0 5.0 300 150
10 2,380 10.0 10.0 900 300
Internal Resistance between VN and VDD Internal Resistance between VN and GND
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Page 7 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
AAT8640E DETECTION VOLTAGE AND DELAY TIME (25)
PARAMETER
Over Charge Threshold Voltage Over Charge Release Voltage Over Discharge Threshold Voltage Over Discharge Release Voltage Over Charge Delay Time Over Discharge Delay Time Over Current Level 1 Detection Voltage Over Current Level 2 Detection Voltage
SYMBOL
VC1 VC 2 VD1 VD 2 t C1 t D1 VOC1
TEST CONDITION
Detect Rising Edge Voltage Detect Falling Edge Voltage Detect Falling Edge Voltage Detect Rising Edge Voltage VDD = 3.6V to 4.5V
VDD = 3.6V to 2.2V
MIN
4.230 VC1-0.30 2.201 VD1+0.5 0.700 87.5 80
TYP
4.280 VC1-0.20 2.281 VD1+0.6 1.000 125.0 100
MAX
4.330 VC1-0.10 2.361 VD1+0.7 1.300 162.5 120
UNIT
V V V V s ms mV
of Supply of Supply of Supply of Supply
VOC 2
Short Circuit Detection Voltage Over Current Level 1 Detection Delay Time Over Current Level 2 Detection Delay Time Short Circuit Detection Delay Time Charger Detection Voltage
C out High Level Resistance C out Low Level Resistance D out High Level Resistance D out Low Level Resistance
Vshort
Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC1 Delay Time) Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC2 Delay Time) VDD = 3.0V , Detect Rising Edge of "VN" Pin Voltage ( D out Response with t short Delay Time)
VDD = 3.0V
400
480
600
mV
VDD -1.7
VDD -1.3
VDD - 0.9
V
t OC1 t OC 2
5.6 1.4 1.1
8.0 2.0 2.0 10
10.4 2.6 3.4 50 -0.6 10 2,380 10.0 10.0 900 300
ms ms ms
s
Room Temp. Low or High Temp. VDD = 3.0V
VDD = 3.0V
t short
VCHR R COH R COL R DOH R DOL R VND R VNG
Detect Rising Edge of " D out " Pin Voltage (when VD1VDDVD2) VDD = 3.5V ; C out = 3.0V ; VN = 0V
VDD = 4.5V ; C out = 0.5V ; VN = 0V VDD = 3.5V ; D out = 3.0V ; VN = 0V VDD = 1.8V ; D out = 0.5V ; VN = 1.8V VDD = 1.8V ; VN = 0V VDD = 3.5V ; VN = 3.5V
-2.0 1 150 2.5 2.5 100 50
-1.3 2 602 5.0 5.0 300 150
V
k k k k k
Internal Resistance between VN and VDD Internal Resistance between VN and GND
k
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Page 8 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
AAT8640F DETECTION VOLTAGE AND DELAY TIME (25)
PARAMETER
Over Charge Threshold Voltage Over Charge Release Voltage Over Discharge Threshold Voltage Over Discharge Release Voltage Over Charge Delay Time Over Discharge Delay Time Over Current Level 1 Detection Voltage Over Current Level 2 Detection Voltage
SYMBOL
VC1 VC 2 VD1 VD 2 t C1 t D1 VOC1
TEST CONDITION
Detect Rising Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Rising Edge of Supply Voltage VDD = 3.6V to 4.5V
VDD = 3.6V to 2.4V
MIN
4.275
TYP
4.325
MAX
4.375
UNIT
V V V V s ms mV
VC1-0.35 VC1-0.25 VC1-0.15 2.420 VD1+0.3 0.700 87.5 80 2.500 2.580
VD1+0.4 VD1+0.5 1.000 125.0 100 1.300 162.5 120
VOC 2
Short Circuit Detection Voltage Over Current Level 1 Detection Delay Time Over Current Level 2 Detection Delay Time Short Circuit Detection Delay Time Charger Detection Voltage
C out High Level Resistance C out Low Level Resistance D out High Level Resistance D out Low Level Resistance
Vshort
Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC1 Delay Time) Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC2 Delay Time) VDD = 3.0V , Detect Rising Edge of "VN" Pin Voltage ( D out Response with t short Delay Time)
VDD = 3.0V
400
480
600
mV
VDD -1.7
VDD -1.3
VDD - 0.9
V
t OC1 t OC 2 t short VCHR R COH R COL R DOH R DOL R VND R VNG
5.6 1.4 1.1
8.0 2.0 2.0 10
10.4 2.6 3.4 50
-0.6
ms ms ms
s
Room Temp. Low or High Temp. VDD = 3.0V
VDD = 3.0V
Detect Rising Edge of " D out " Pin Voltage (When VD1VDDVD2) VDD = 3.5V ; C out = 3.0V ; VN = 0V
VDD = 4.5V ; C out = 0.5V ; VN = 0V VDD = 3.5V ; D out = 3.0V ;VN=0V VDD = 1.8V ; D out = 0.5V ;VN=1.8V VDD = 1.8V ; VN = 0V VDD = 3.5V ; VN=3.5V
-2.0
-1.3
V
k k k k k
1 150 2.5 2.5 100 50
2 602 5.0 5.0 300 150
10 2,380 10.0 10.0 900 300
Internal Resistance between VN and VDD Internal Resistance between VN and GND
k
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Page 9 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
AAT8640G DETECTION VOLTAGE AND DELAY TIME (25)
PARAMETER
Over Charge Threshold Voltage Over Charge Release Voltage Over Discharge Threshold Voltage Over Discharge Release Voltage Over Charge Delay Time Over Discharge Delay Time Over Current Level 1 Detection Voltage Over Current Level 2 Detection Voltage
SYMBOL
VC1 VC 2 VD1 VD 2 t C1 t D1 VOC1
TEST CONDITION
Detect Rising Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Rising Edge of Supply Voltage VDD = 3.6V to 4.5V
VDD = 3.6V to 2.2V
MIN
4.300
TYP
4.350
MAX
4.400
UNIT
V V V V s ms mV
VC1-0.30 VC1-0.20 VC1-0.10 2.220 VD1+0.6 0.088 22.4 180 2.300 2.380
VD1+0.7 VD1+0.8 0.125 32.0 200 0.163 41.6 220
VOC 2
Short Circuit Detection Voltage Over Current Level 1 Detection Delay Time Over Current Level 2 Detection Delay Time Short Circuit Detection Delay Time Charger Detection Voltage
C out High Resistance Level C out Low Resistance Level D out High Resistance Level D out Low Resistance Level
Vshort
Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC1 Delay Time) Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC2 Delay Time) VDD = 3.0V , Detect Rising Edge of "VN" Pin Voltage ( D out Response with t short Delay Time)
VDD = 3.0V
400
510
600
mV
VDD -1.7
VDD -1.3
VDD - 0.9
V
t OC1 t OC 2 t short VCHR R COH R COL R DOH R DOL R VND R VNG
2.8 1.4 1.1
4 2.0 2.0 10
5.2 2.6 3.4 50
-0.6
ms ms ms
s
Room Temp. Low or High Temp. VDD = 3.0V
VDD = 3.0V
Detect Rising Edge of " D out " Pin Voltage(when VD1 VDD VD2) VDD = 3.5V ; C out = 3.0V ;VN=0V
VDD = 4.5V ; C out = 0.5V ;VN=0V VDD = 3.5V ; D out = 3.0V ;VN=0V VDD = 1.8V ; D out = 0.5V ;VN=1.8V VDD = 1.8V ; VN=0V VDD = 3.5V ; VN=3.5V
-2.0
-1.3
V
k k k k k k
1 150 2.5 2.5 100 50
2 602 5.0 5.0 300 150
10 2,380 10.0 10.0 900 300
Internal Resistance between VN and VDD Internal Resistance between VN and GND
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Page 10 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
AAT8640H DETECTION VOLTAGE AND DELAY TIME (25)
PARAMETER
Over Charge Threshold Voltage Over Charge Release Voltage Over Discharge Threshold Voltage Over Discharge Release Voltage Over Charge Delay Time Over Discharge Delay Time Over Current Level 1 Detection Voltage Over Current Level 2 Detection Voltage
SYMBOL
VC1 VC 2 VD1 VD 2 t C1 t D1 VOC1
TEST CONDITION
Detect Rising Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect rising Edge of Supply Voltage VDD = 3.6V to 4.5V
VDD = 3.6V to 2.2V
MIN
4.250
TYP
4.300
MAX
4.350
UNIT
V V V V s ms mV
VC1-0.30 VC1-0.20 VC1-0.10 2.220 VD1-0.08 0.700 87.5 2.300 VD1 1.000 125.0 150 2.380 VD1+0.08 1.300 162.5 170
VOC 2
Short Circuit Detection Voltage Over Current Level 1 Detection Delay Time Over Current Level 2 Detection Delay Time Short Circuit Detection Delay Time Charger Detection Voltage
C out High Resistance Level C out Low Resistance Level D out High Resistance Level D out Low Resistance Level
Vshort
t OC1 t OC 2 t short VCHR R COH R COL R DOH R DOL R VND R VNG
Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC1 130 Delay Time) Detect Rising Edge of "VN" Pin Voltage ( D out Response 400 with tOC2 Delay Time) VDD = 3.0V , Detect Rising Edge of "VN" Pin Voltage ( D out VDD -1.7 Response with t short Delay Time) VDD = 3.0V 5.6 Room Temp. Low or High Temp. VDD = 3.0V
VDD = 3.0V
500
600
mV
VDD -1.3
VDD - 0.9
V
8.0 2.0 2.0 10
10.4 2.6 3.4 50 -0.6 10 2,380 10.0 10.0 900 300
ms ms ms
s
1.4 1.1
Detect Rising Edge of " D out " Pin Voltage (when VD1VDDVD2) VDD = 3.5V ; C out = 3.0V ;VN=0V
VDD = 4.5V ; C out = 0.5V ;VN=0V VDD = 3.5V ; D out = 3.0V ;VN=0V VDD = 1.8V ; D out = 0.5V ;VN=1.8V VDD = 1.8V ; VN=0V VDD = 3.5V ; VN=3.5V
-2.0 1 150 2.5 2.5 100 50
-1.3 2 602 5.0 5.0 300 150
V
k k k k k k
Internal Resistance between VN and VDD Internal Resistance between VN and GND
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Page 11 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
AAT8640I DETECTION VOLTAGE AND DELAY TIME (25)
PARAMETER
Over Charge Threshold Voltage Over Charge Release Voltage Over Discharge Threshold Voltage Over Discharge Release Voltage Over Charge Delay Time Over Discharge Delay Time Over Current Level 1 Detection Voltage Over Current Level 2 Detection Voltage
SYMBOL
VC1 VC 2 VD1 VD 2 t C1 t D1 VOC1
TEST CONDITION
Detect Rising Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Rising Edge of Supply Voltage VDD = 3.6V to 4.5V
VDD = 3.6V to 2.2V
MIN
4.250
TYP
4.300
MAX UNIT
4.350 V V V V s ms mV
VC1-0.30 VC1-0.20 VC1-0.10 2.220 VD1-0.08 0.700 87.5 2.300 VD1 1.000 125.0 130 2.380 VD1+0.08 1.300 162.5 150
VOC 2
Short Circuit Detection Voltage Over Current Level 1 Detection Delay Time Over Current Level 2 Detection Delay Time Short Circuit Detection Delay Time Charger Detection Voltage
C out High Resistance Level C out Low Resistance Level D out High Resistance Level D out Low Resistance Level
Vshort
t OC1 t OC 2 t short VCHR R COH R COL R DOH R DOL R VND R VNG
Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC1 110 Delay Time) Detect Rising Edge of "VN" Pin Voltage ( D out Response 400 with tOC2 Delay Time) VDD = 3.0V , Detect Rising Edge of "VN" Pin Voltage ( D out VDD -1.7 Response with t short Delay Time) VDD = 3.0V 5.6 Room Temp. Low or High Temp. VDD = 3.0V
VDD = 3.0V
490
600
mV
VDD -1.3
VDD - 0.9
V
8.0 2.0 2.0 10
10.4 2.6 3.4 50
-0.6
ms ms ms
s
1.4 1.1
Detect Rising Edge of " D out " Pin Voltage (when VD1VDDVD2) VDD = 3.5V ; C out = 3.0V ;VN=0V
VDD = 4.5V ; C out = 0.5V ;VN=0V VDD = 3.5V ; D out = 3.0V ;VN=0V VDD = 1.8V ; D out = 0.5V ;VN=1.8V VDD = 1.8V ; VN=0V VDD = 3.5V ; VN=3.5V
-2.0
-1.3
V
k k k k k
1 150 2.5 2.5 100 50
2 602 5.0 5.0 300 150
10 2,380 10.0 10.0 900 300
Internal Resistance between VN and VDD Internal Resistance between VN and GND
k
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Page 12 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
AAT8640J DETECTION VOLTAGE AND DELAY TIME (25)
PARAMETER
Over Charge Threshold Voltage Over Charge Release Voltage Over Discharge Threshold Voltage Over Discharge Release Voltage Over Charge Delay Time Over Discharge Delay Time Over Current Level 1 Detection Voltage Over Current Level 2 Detection Voltage
SYMBOL
VC1 VC 2 VD1 VD 2 t C1 t D1 VOC1
TEST CONDITION
Detect Rising Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Falling Edge of Supply Voltage Detect Rising Edge of Supply Voltage VDD = 3.6V to 4.5V
VDD = 3.6V to 2.2V
MIN
4.230 VC1-0.30 2.201 VD1-0.08 0.700 87.5 180
TYP
4.280
MAX UNIT
4.330 V V V V s ms mV
VC1-0.20 VC1-0.10 2.281 VD1 1.000 125.0 200 2.361 VD1+0.08 1.300 162.5 220
VOC 2
Short Circuit Detection Voltage Over Current Level 1 Detection Delay Time Over Current Level 2 Detection Delay Time Short Circuit Detection Delay Time Charger Detection Voltage
C out High Level Resistance C out Low Level Resistance D out High Level Resistance D out Low Level Resistance
Vshort
t OC1 t OC 2 t short VCHR R COH R COL R DOH R DOL R VND R VNG
Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC1 Delay Time) Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC2 Delay Time) VDD = 3.0V , Detect Rising Edge of "VN" Pin Voltage ( D out Response with t short Delay Time) VDD = 3.0V Room Temp. Low or High Temp. VDD = 3.0V
VDD = 3.0V
400
510
600
mV
VDD -1.7
VDD -1.3
VDD - 0.9
V
5.6 1.4 1.1
8.0 2.0 2.0 10
10.4 2.6 3.4 50 -0.6 10 2,380 10.0 10.0 900 300
ms ms ms
s
Detect Rising Edge of " D out " Pin Voltage (when VD1VDD VD2) VDD = 3.5V ; C out = 3.0V ;VN=0V
VDD = 4.5V ; C out = 0.5V ;VN=0V VDD = 3.5V ; D out = 3.0V ;VN=0V VDD = 1.8V ; D out = 0.5V ;VN=1.8V VDD = 1.8V ; VN=0V VDD = 3.5V ; VN=3.5V
-2.0 1 150 2.5 2.5 100 50
-1.3 2 602 5.0 5.0 300 150
V
k k k k k k
Internal Resistance between VN and VDD Internal Resistance between VN and GND
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Page 13 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
AAT8640K DETECTION VOLTAGE AND DELAY TIME (25)
PARAMETER
Over Charge Threshold Voltage Over Charge Release Voltage Over Discharge Threshold Voltage Over Discharge Release Voltage Over Charge Delay Time Over Discharge Delay Time Over Current Level 1 Detection Voltage Over Current Level 2 Detection Voltage
SYMBOL
VC1 VC2 VD1 VD2 tC1 t D1
VOC1
TEST CONDITION
Detect rising edge of supply voltage Detect falling edge of supply voltage Detect falling edge of supply voltage Detect rising edge of supply voltage VDD = 3.6V to 4.5V
VDD = 2.8V to 2.2V
MIN
4.20 VC1-0.3 2.201 VD1+0.5 0.700 87.5 80
TYP
4.25 VC1-0.2 2.281 VD1+0.6 1.000 125 100
MAX UNIT
4.30 VC1-0.1 2.361 VD1+0.7 1.300 162.5 120 V V V V s ms mV
VOC 2
Short Circuit Detection Voltage Over Current Level 1 Detection Delay Time Over Current Level 2 Detection Delay Time Short Circuit Detection Delay Time Charger Detection Voltage
C out High Level Resistance C out Low Level Resistance D out High Level Resistance D out Low Level Resistance
Vshort
t OC1 t OC 2 t short VCHR R COH R COL R DOH R DOL R VND R VNG
Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC1 Delay Time) Detect Rising Edge of "VN" Pin Voltage ( D out Response with tOC2 Delay Time) VDD = 3.0V , Detect Rising Edge of "VN" Pin Voltage ( D out Response with t short Delay Time) VDD = 3.0V Room Temp. Low or High Temp. VDD = 3.0V
VDD = 3.0V
400
480
600
mV
VDD -1.7
VDD -1.3
VDD - 0.9
V
5.6 1.4 1.1
8.0 2.0 2.0 10
10.4 2.6 3.4 50 -0.6 10 2,380 10.0 10.0 900 300
ms ms ms
s
Detect rising edge of " D out " pin voltage(when VD1VDDVD2) VDD = 3.5V ; C out =3.0V;VN=0V
VDD = 4.5V ; C out =0.5V;VN=0V VDD = 3.5V ; D out =3.0V;VN=0V VDD = 1.8V ; D out =0.5V;VN=1.8V VDD = 1.8V ; VN=0V VDD = 3.5V ; VN=3.5V
-2.0 1 150 2.5 2.5 100 50
-1.3 2 602 5.0 5.0 300 150
V k
k k k k k
Internal Resistance Between VN and VDD Internal Resistance Between VN and GND
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Page 14 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
SUMMARY OF AAT8640 DETECTION VOLTAGE AND DELAY TIME ( 25 C )
PARAMETER SYMBOL VC1 DEVICE AAT8640A AAT8640B AAT8640C AAT8640D AAT8640E AAT8640F AAT8640G AAT8640H AAT8640I AAT8640J AAT8640K AAT8640A AAT8640B AAT8640C AAT8640D AAT8640E AAT8640F AAT8640G AAT8640H AAT8640I AAT8640J AAT8640K AAT8640A AAT8640B AAT8640C AAT8640D AAT8640E AAT8640F AAT8640G AAT8640H AAT8640I AAT8640J AAT8640K
MIN
4.275 4.30 4.25 4.23 4.23 4.275 4.3 4.25 4.25 4.23 4.20 VC1-0.35 VC1-0.3 VC1-0.3 VC1-0.3 VC1-0.3 VC1-0.35 VC1-0.3 VC1-0.3 VC1-0.3 VC1-0.3 VC1-0.3 2.420 2.220 2.220 2.201 2.201 2.420 2.220 2.220 2.220 2.201 2.201
TYP
4.325 4.35 4.3 4.28 4.28 4.325 4.35 4.3 4.3 4.28 4.25 VC1-0.25 VC1-0.2 VC1-0.2 VC1-0.2 VC1-0.2 VC1-0.25 VC1-0.2 VC1-0.2 VC1-0.2 VC1-0.2 VC1-0.2 2.5 2.3 2.3 2.281 2.281 2.5 2.3 2.3 2.3 2.281 2.281
MAX
4.375 4.40 4.35 4.33 4.33 4.375 4.4 4.35 4.35 4.33 4.30 VC1-0.15 VC1-0.1 VC1-0.1 VC1-0.1 VC1-0.1 VC1-0.15 VC1-0.1 VC1-0.1 VC1-0.1 VC1-0.1 VC1-0.1 2.580 2.380 2.380 2.361 2.361 2.580 2.380 2.380 2.380 2.361 2.361
UNIT
V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V
Over Charge Threshold Voltage
VC2
Over Charge Release Voltage
VD1
Over Discharge Threshold Voltage
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Page 15 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
SUMMARY OF AAT8640 DETECTION VOLTAGE AND DELAY TIME (25)
PARAMETER SYMBOL VD2 DEVICE AAT8640A AAT8640B AAT8640C AAT8640D AAT8640E AAT8640F AAT8640G AAT8640H AAT8640I AAT8640J AAT8640K AAT8640A AAT8640B AAT8640C AAT8640D AAT8640E AAT8640F AAT8640G AAT8640H AAT8640I AAT8640J AAT8640K AAT8640A AAT8640B AAT8640C AAT8640D AAT8640E AAT8640F AAT8640G AAT8640H AAT8640I AAT8640J AAT8640K
MIN
VD1+0.3 VD1+0.6 VD1-0.08 VD1-0.08 VD1+0.5 VD1+0.3 VD1+0.6 VD1-0.08 VD1-0.08 VD1-0.08 VD1+0.5 0.700 0.088 0.700 0.700 0.700 0.700 0.088 0.700 0.700 0.700 0.700 87.5 22.4 87.5 87.5 87.5 87.5 22.4 87.5 87.5 87.5 87.5
TYP
VD1+0.4 VD1+0.7 VD1 VD1 VD1+0.6 VD1+0.4 VD1+0.7 VD1 VD1 VD1 VD1+0.6 1 0.125 1 1 1 1 0.125 1 1 1 1 125 32 125 125 125 125 32 125 125 125 125
MAX
VD1+0.5 VD1+0.8 VD1+0.08 VD1+0.08 VD1+0.7 VD1+0.5 VD1+0.8 VD1+0.08 VD1+0.08 VD1+0.08 VD1+0.7 1.300 0.163 1.300 1.300 1.300 1.300 0.163 1.300 1.300 1.300 1.300 162.5 41.6 162.5 162.5 162.5 162.5 41.6 162.5 162.5 162.5 162.5
UNIT
V V V V V V V V V V V s s s s s s s s s s s ms ms ms ms ms ms ms ms ms ms ms
Over Discharge Release Voltage
tC1
Over Charge Delay Time
tD1
Over Discharge Delay Time
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Page 16 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
SUMMARY OF AAT8640 DETECTION VOLTAGE AND DELAY TIME (25)
PARAMETER SYMBOL VOC1 DEVICE AAT8640A AAT8640B AAT8640C AAT8640D AAT8640E AAT8640F AAT8640G AAT8640H AAT8640I AAT8640J AAT8640K AAT8640A AAT8640B AAT8640C AAT8640D AAT8640E AAT8640F AAT8640G AAT8640H AAT8640I AAT8640J AAT8640K AAT8640A AAT8640B AAT8640C AAT8640D AAT8640E AAT8640F AAT8640G AAT8640H AAT8640I AAT8640J AAT8640K
MIN
130 130 80 110 80 80 180 130 110 180 80 400 400 400 400 400 400 400 400 400 400 400 5.6 2.8 5.6 5.6 5.6 5.6 2.8 5.6 5.6 5.6 5.6
TYP
150 150 100 130 100 100 200 150 130 200 100 500 500 480 490 480 480 510 500 490 510 480 8 4 8 8 8 8 4 8 8 8 8
MAX
170 170 120 150 120 120 220 170 150 220 120 600 600 600 600 600 600 600 600 600 600 600 10.4 5.2 10.4 10.4 10.4 10.4 5.2 10.4 10.4 10.4 10.4
UNIT
mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV ms ms ms ms ms ms ms ms ms ms ms
Over Current Level 1 Detection Voltage
VOC2
Over Current Level 2 Detection Voltage
tOC1
Over Current Level 1 Detection Delay Time
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Page 17 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
TIMING CHART AAT8640 (CHARGE AND DISCHARGE)
V DD
VC1 VC2
VD2
VD1
t
D1
V DD
t
D1
D
out
GND
V DD
t
C1
t
C1
C out
VN
V DD
GND
VCHR
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Page 18 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
TIMING CHART AAT8640 (UNUSUAL CHARGE CURRENT, OVER CURRENT, SHORT CIRCUIT)
V
C1
C2
V
V
DD
VD 2 V D1
t OC
t OC 2
1
t OC
2
t short
V
t OC 1
DD
D
out
V
DD
V
t
DD
C1
C
out
V
V short
V OC 2 V OC 1
DD
V CHR
Time
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Page 19 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
TYPICAL APPLICATION
+
R1 100
C1 0.1F
Li Battery
VDD
VN GND
D OUT
C OUT
R2 1k
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Page 20 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
PACKAGE DIMENSION
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Page 21 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
PACKAGE DIMENSION (CONT.)
SYMBOLS A A1 A2 b b1 c c1 D E E1 L L1 e e1 DIMENSIONS IN MILLIMETERS MIN 1.05 0.05 1.00 0.25 0.25 0.08 0.08 2.70 2.60 1.50 0.35 TYP 1.20 0.10 1.10 -----0.40 -----0.11 2.90 2.80 1.60 0.45 0.60 REF 0.95 BSC 1.90 BSC MAX 1.35 0.15 1.20 0.50 0.45 0.20 0.15 3.00 3.00 1.70 0.55 DEMINSIONS IN INCHES MIN 0.041 0.002 0.039 0.010 0.010 0.003 0.003 0.106 0.102 0.059 0.014 TYP 0.047 0.004 0.043 -----0.016 -----0.004 0.114 0.110 0.063 0.018 0.024 REF 0.037 BSC 0.075 BSC MAX 0.053 0.006 0.047 0.020 0.018 0.008 0.006 0.118 0.118 0.067 0.022
1 2
0 3 6
5 5 8
10 7 10
0 3 6
5 5 8
10 7 10
NOTE: 1. 2. 3. DIMENSION D DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.20 MILLIMETERS PER SIDE. DIMENSION E1 DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.20MILLIMETERS PER SIDE. THE PACKAGE TOP MAY BE SAMLLER THAN PACKAGE BOTTOM. DIMENSION D AND E1 ARE DETERMINED AT THE OUTERMOST EXTREMES OF THE PLASTIC BODY EXCLUSIVE OF MOLD FLASH, TIE BAR BURRS, INTERLEAD FLASH AND GATE BURRS, BUT INCLUDING ANY MISMATCH BETWEEN THE TOP AND BOTTOM OF THE MOLDED BODY. THE SECTION B-B APPLY TO THE FLAT SECTION OF THE LEAD BETWEEN 0.08 MILLIMETERES AND 0.15 MILLIMETERS FROM THE LEAD TIP LEAD FRAME MATERIAL: EFTEC-64T 1/2H OR H.
4. 5.
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Page 22 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
TAPE AND REEL
PACKING METHOD: 3,000PCS/REEL, 5 REELS/BOX
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Page 23 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
TAPE AND REEL (CONT.)
X.XXX X X.XXX X.XX X.X X
0.0025 0.006
0.025 0.10 0.25
UNIT: MILLIMETERS
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Page 24 of 25 V2.0
Advanced Analog Technology, Inc.
AAT8640 Series
ORDERING INFORMATION
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Page 25 of 25 V2.0

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