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19-4224; Rev 1; 10/08
EVALUATION KIT AVAILABLE
Ultra-Small, Low-Power, Window Comparator in 4 UCSP and 5 SOT23
General Description
The MAX9065 is an ultra-small, low-power, window comparator ideal for a wide variety of portable electronics applications such as cell phones, portable media players, and notebooks that have extremely tight board space and power constraints. It comes in both a 4-bump UCSPTM package with a 1mm x 1mm footprint (as small as two 0402 resistors) and a 5-pin SOT23 package. The MAX9065 features a common-mode input range of -0.3V to +5.5V independent of supply voltage. The input current goes to zero when the MAX9065 is powered down (VCC = 0). Additionally, the MAX9065 features high RF immunity. The MAX9065 has a push-pull output and consumes only 1A (max) supply current. The MAX9065 operates down to 1.0V over the extended -40C to +85C temperature range.
Features
Tiny 1mm x 1mm 4-Bump UCSP Footprint = Two 0402 Resistors Also Available in 5-Pin SOT23 Package Ultra-Low Power Operating Current 1A (max) -0.3V to +5.5V Input Voltage Range 1.0V to 5.5V VCC Range 3.0V and 4.2V Trigger Points -40C to +85C Extended Temperature Range
MAX9065
Ordering Information
PART MAX9065EBS+ MAX9065EUK+ PIN-PACKAGE 4 UCSP 5 SOT23 TOP MARK AGC AFFL
Applications
Cell Phones Portable Media Players Electronic Toys Notebook Computers Portable Medical Devices
Note: All devices are specified over the extended -40C to +85C operating temperature range.
+Denotes a lead-free/RoHS-compliant package.
Pin Configurations
Typical Operating Circuit
1.0V TO 5.5V
TOP VIEW (BUMPS ON BOTTOM) MAX9065
0.1F
TOP VIEW
IN
VCC
+ VCC 1 5 OUT
VLOWER
MAX9065
OUT
A1
A2
IN GND 2
MAX9065
0.2V REF OUT I/O
VDD MICRO CONTROLLER
VCC
B1
B2
GND GND 3 4 IN
VUPPER VCC
UCSP
SOT23
N
GND
UCSP is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Ultra-Small, Low-Power, Window Comparator in 4 UCSP and 5 SOT23 MAX9065
ABSOLUTE MAXIMUM RATINGS
VCC, IN to GND ......................................................-0.3V to +6V OUT to GND.............................................-0.3V to (VCC + 0.3V) Output Short-Circuit Current Duration ....................................10s Input Current into Any Terminal .......................................20mA Continuous Power Dissipation 4-Bump UCSP (derate 3.0mW/C above +70C)..........238mW 5-Pin SOT23 (derate 3.9mW/C above +70C).............312mW Operating Temperature Range ..........................-40C to +85C Junction Temperature .....................................................+150C Storage Temperature Range ............................-65C to +150C Bump Temperature (soldering) Reflow............................+235C Lead Temperature (soldering, 10s) .................................+300C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC = 3.3V, TA = -40C to +85C. Typical values are at TA = +25C, unless otherwise noted.) (Note 1)
PARAMETER DC CHARACTERISTICS MAX9065EBS+ 4 UCSP Upper Threshold Voltage UTV MAX9065EUK+ 5 SOT23 MAX9065EBS+ 4 UCSP Lower Threshold Voltage LTV MAX9065EUK+ 5 SOT23 Input Voltage Range Hysteresis Resistor String Input Resistance Input Shutdown Current Output Voltage Low VIN VHYS RIN IIN_SHDN VOL VCC = 0, VIN = 5.5V ISINK = 100A, VCC = 1V, TA = +25C ISINK = 1.2mA, VCC = 3.3V ISINK = 1.2mA, VCC = 5.5V ISOURCE = 25A, VCC = 1V, TA = +25C Output Voltage High VOH ISOURCE = 0.3mA, VCC = 3.3V ISOURCE = 0.75mA, VCC = 5.5V AC CHARACTERISTICS Propagation Delay Fall Time Rise Time POWER SUPPLY Supply Voltage VCC Guaranteed by VOS tests 1 5.5 V tPD tF tR Overdrive = 100mV (Notes 3, 4) CL = 10pF CL = 10pF 25 14 30 s ns ns (Note 2) 5.8 TA = +25C -40C < TA < +85C TA = +25C -40C < TA < +85C TA = +25C -40C < TA < +85C TA = +25C -40C < TA < +85C 4.158 4.10 4.04 3.98 2.94 2.92 2.88 2.83 -0.3 1.0 11 1 17.7 15 0.2 0.3 0.5 VCC 0.2 VCC 0.3 VCC 0.5 V V 3.00 3.00 4.20 4.20 4.242 4.30 4.36 4.42 3.06 3.08 3.12 3.17 +5.5 V % M nA V V SYMBOL CONDITIONS MIN TYP MAX UNITS
2
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Ultra-Small, Low-Power, Window Comparator in 4 UCSP and 5 SOT23
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 3.3V, TA = -40C to +85C. Typical values are at TA = +25C, unless otherwise noted.) (Note 1)
PARAMETER Supply Current Power-Supply Rejection Ratio Power-Up Time SYMBOL ICC PSRR tON VCC = 5.5V VCC = 1.0V, TA = +25C VCC = 0.9V to 5.5V, TA = +25C 40 CONDITIONS MIN TYP 0.7 0.6 53 3 MAX 1.35 1.0 UNITS A dB ms
MAX9065
Note 1: Note 2: Note 3: Note 4:
All devices are 100% production tested at TA = +25C. Temperature limits are guaranteed by design. Hysteresis is the input voltage difference between the two switching points. Overdrive is defined as the voltage above or below the average of the switching points. Guaranteed by ATE and/or bench characterization over temperature.
Typical Operating Characteristics
(VCC = 3.3V, TA = -40C to +85C. Typical values are at TA = +25C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX9065 toc01
SUPPLY CURRENT vs. OUTPUT TRANSITION FREQUENCY
MAX9065 toc02
OUTPUT VOLTAGE LOW vs. SINK CURRENT
MAX9065 toc03
1200 1000 SUPPLY CURRENT (nA) 800 600 400 TA = -40C 200 0 0 1 2 3 4 5 6 SUPPLY VOLTAGE (V) TA = +25C TA = +85C
50 45 40 SUPPLY CURRENT (A) 35 30 25 20 15 10 5 0 0.1 1 10 VCC = 1.8V VCC = 3.3V VCC = 5V
3.0 2.5 OUTPUT VOLTAGE LOW (V) 2.0 1.5 1.0 0.5 0 VCC = 1.8V VCC = 5V VCC = 3.3V
100
0
4
8
12
16
20
OUTPUT TRANSITION FREQUENCY (kHz)
SINK CURRENT (mA)
OUTPUT VOLTAGE HIGH vs. SOURCE CURRENT
MAX9065 toc04
HYSTERESIS VOLTAGE vs. TEMPERATURE
90 80 HYSTERESIS (mV) 70 60 50 40 30 20 10 0 VTH = 3V VTH = 4.2V
MAX9065 toc05
THRESHOLD VOLTAGE vs. TEMPERATURE
4.2 THRESHOLD VOLTAGE (V) VTH = 4.2V 4.0 3.8 3.6 3.4 3.2 VTH = 3V 3.0 2.8
MAX9065 toc06
3.0 2.5 OUTPUT VOLTAGE HIGH (V) 2.0 1.5 1.0 0.5 0 0 2 4 6 8 SOURCE CURRENT (mA) VCC = 3.3V VCC = 1.8V VCC = 5V
100
4.4
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE (C)
TEMPERATURE (C)
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Ultra-Small, Low-Power, Window Comparator in 4 UCSP and 5 SOT23 MAX9065
Typical Operating Characteristics (continued)
(VCC = 3.3V, TA = -40C to +85C. Typical values are at TA = +25C, unless otherwise noted.)
THRESHOLD VOLTAGE vs. SUPPLY VOLTAGE
MAX9065 toc07
PROPAGATION DELAY vs. TEMPERATURE
MAX9065 toc08
PROPAGATION DELAY vs. INPUT OVERDRIVE
VTH = 4.2V PROPAGATION DELAY (s) 200
MAX9065 toc09
4.4 4.2 THRESHOLD VOLTAGE (V) 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 VTH = 3V VTH = 4.2V
25 23 PROPAGATION DELAY (s) 21 19 17 15 13 11 9 7 VCC = 1.8V VCC = 5V VCC = 3.3V
250
150 VCC = 1.8V VCC = 3.3V 50 VCC = 5V
100
0 -40 -15 10 35 60 85 0 20 40 60 80 100 120 140 160 180 200 INPUT OVERDRIVE (mV) TEMPERATURE (C)
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 SUPPLY VOLTAGE (V)
PROPAGATION DELAY vs. SUPPLY VOLTAGE
MAX9065 toc10
1kHz FREQUENCY RESPONSE
4.4V
10kHz FREQUENCY RESPONSE
4.4V IN 200mV/div
25 VTH = 4.2V PROPAGATION DELAY (ms) 20
MAX9065 toc11
MAX9065 toc12
VCC = 3.3V
VCC = 3.3V IN 200mV/div 4V
15
VTH = 3V
4V
10 0V 5 VOD = 200mV 0 0 1 2 3 4 5 6 200s/div
OUT 2V/div 0V
OUT 2V/div
20s/div
SUPPLY VOLTAGE (V)
OUTPUT RESPONSE TO SUPPLY VOLTAGE TRANSIENT
MAX9065 toc13
POWER-UP/POWER-DOWN RESPONSE
MAX9065 toc14
POWER-SUPPLY REJECTION FOR NO FALSE TRIGGERING
4.34 4.32 4.30 4.28 4.26 4.24 4.22 4.20 4.18 4.16 4.14 4.12 4.10 4.08 4.06
MAX9065 toc15
3.2V 3V VIN = VTH + 50mV
VCC 200mV/div OUT 2V/div 0V
VCC 2V/div TRIP POINT (V)
UPPER TRIP POINT
0V
VIN = VTH + 150mV OUT 2V/div OUT 2V/div 0V OUT 2V/div 1ms/div VIN = 4.3V VCC = 3.3V
LOWER TRIP POINT
0V
VIN = VTH + 300mV
VCC = 3.3V + 100mVP-P 10 100 1k 10k 100k 1M
0V 1ms/div
FREQUENCY (Hz)
4
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Ultra-Small, Low-Power, Window Comparator in 4 UCSP and 5 SOT23
Pin Description
PIN SOT23 1 2, 3 4 5 UCSP B1 B2 A2 A1 NAME FUNCTION External Supply Input. Bypass to ground with a 0.1F bypass capacitor. Ground Window Comparator Input Push-Pull Output
MAX9065
Table 1. MAX9065 Operation
INPUT VOLTAGE VIN > 4.2V 3.0V < VIN < 4.2V VIN < 3.0V OUTPUT Low High Low
VCC GND IN OUT
Detailed Description
The MAX9065 is an extremely small window comparator designed for compact, low-current applications, featuring a supply current of less than 1A (max).
than 0.2V, causing the output also to assert low. With the input voltage between 3.0V and 4.2V, the output asserts high, indicating that the input voltage is within the desired range. Table 1 summarizes the operation of the MAX9065. When VCC goes to 0V, the n-channel FET is turned off, eliminating the resistor-divider as a leakage path for current.
Operation
At the heart of the MAX9065 are two comparators, a resistor-divider with a disconnect switch, a 200mV reference, digital logic circuitry, and an output stage (see the Typical Operating Circuit). The digital logic circuitry and the output stage together behave like an AND gate. The gate's inputs are the outputs of the two comparators. When either comparator's output is low, the output asserts low. When both comparator's outputs are high, the output asserts high. When power is applied to VCC, the n-channel FET at the bottom of the resistor-divider is turned on. The resistor-divider provides two voltages, V UPPER and VLOWER, for comparison with an internal 0.2V reference voltage. When the input voltage exceeds 4.2V, VUPPER is greater than 0.2V, causing the output to assert low. When the input voltage falls below 3.0V, VLOWER is less
Applications
The MAX9065 is designed specifically to monitor the voltage on a single lithium battery. Keeping the voltage on a lithium battery within a tight range is important to prevent damage to the battery. Specifically, ensuring that the battery's voltage neither exceeds 4.2V nor falls below 3.0V lengthens the lifetime of the battery and avoids any hazardous battery conditions.
Hysteresis
There are four trip points for hysteresis. See Figure 1.
Power-Supply Considerations
Bypass VCC with a 0.1F capacitor to ground.
Chip Information
PROCESS: BiCMOS
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5
Ultra-Small, Low-Power, Window Comparator in 4 UCSP and 5 SOT23 MAX9065
UTV = 4.2V
HYSTERESIS = 1%
IN
HYSTERESIS = 1% LTV = 3.0V
OUT
Figure 1. Hysteresis Trip Points
6
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Ultra-Small, Low-Power, Window Comparator in 4 UCSP and 5 SOT23
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. PACKAGE TYPE 4 UCSP 5 SOT23 PACKAGE CODE B4-1 U5-2 DOCUMENT NO. 21-0117 21-0057
MAX9065
PACKAGE OUTLINE, 2x2 UCSP 21-0117 G
1 1
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4L, UCSP 2x2.EPS
7
Ultra-Small, Low-Power, Window Comparator in 4 UCSP and 5 SOT23 MAX9065
Package Information (continued)
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
SOT-23 5L .EPS
8
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Ultra-Small, Low-Power, Window Comparator in 4 UCSP and 5 SOT23
Revision History
REVISION NUMBER 0 1 REVISION DATE 7/08 10/08 Initial release Removed future part reference from 5 SOT23 package DESCRIPTION PAGES CHANGED -- 1
MAX9065
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 9
(c) 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.

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