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LV5603T
Overview
Bi-CMOS LSI
Six-Channel Switching Regulator Controller
The LV5603T is a six-channel switching regulator controller.
Features
* Low-voltage (3V) operation * Reference voltage precision : 1% * Independent standby functions for each of the six channels * Is capable of driving MOS transistors * Synchronous rectification: channels 1 and 2 * Supports inverting step-up operation.
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature * Specified circuit board : 114.3x76.1x1.6mm3 Symbol VCC max Pd max Topr Tstg : glass epoxy board Mounted on a circuit board.* Conditions Ratings -0.3 to 16 0.95 -30 to +85 -55 to +125 Unit V W C C
Recommended Operating Conditions at Ta = 25C
Parameter Supply voltage Supply voltage Timing resistor Timing capacitor Triangle wave frequency Symbol VCC VBIAS RT CT fOSC Conditions Ratings 3 to 15 3 to 15 7 to 30 100 to 1000 0.1 to 1.3 Unit V V k pF MHz
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment.
13107 MS PC 20060530-S00009 No.A0611-1/12
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LV5603T
Ratings min typ max
Electrical Characteristics at Ta = 25C, VCC = VBIAS = 3.6V, SCP = 0V
Parameter Error amplifier 1 IN+ pin internal bias voltage VB Value added to the error amplifier offset at the error amplifier + side Output low voltage Output High voltage Error amplifier 2 IN4-RE pin offset voltage Output low voltage Output High voltage Protection circuit Threshold voltage SCP pin current Short circuit detection signal pin Software start block (CH1 to CH4) Soft start current Soft start resistance Fixed duty Maximum on duty 1 Maximum on duty 2 Maximum on duty 3 Output block 1 to 6 OUT pin high side on resistance OUT pin high side on resistance Triangle wave oscillator block Current setting pin voltage Output current Output current ratio Oscillation frequency Reference voltage block Reference voltage Line regulation Control circuit On state voltage OFF state voltage Pin input current Standby circuit On voltage Off voltage Pin input current All circuits VCC current consumption Standby mode current consumption ICC IOFF IN1- to IN6- = 1V VSTBY = VCTL = 0V IOFF = ICC + IBIAS 5 6.5 1 mA A VON STBY VOFF STBY IIN STBY VSTBY = 2V 2.0 0.6 60 V V A VON CTL VOFF CTL IIN CTL VCTL = 2V 2.0 0.6 60 V V A VREF VLN REF VCC = 3V to 15V 1.227 1.240 1.253 10 V mV VT RT IOH CT IO CT FOSC1 RT = 10k, CT1, 2 = 560pF 0.8 360 RT = 10k 0.57 190 1.0 450 1.2 520 kHz V A ROUT SOUR ROUT SINK IO = 10mA IO = 10mA 25 10 60 24 CH1 to CH3 CH4 CH5 to CH6 Duty MAX1, 2, 3 Duty MAX4 Duty MAX5,6 Out monitor, IN- = 0V Out monitor, IN- = 0V Out monitor, IN- = 0V 100 75 80 80 85 85 90 % % % CH1 to CH6 CH1 to CH6 ISF RSF CSOFT = 0V 3.2 160 4 200 4.8 240 A k VSCP ISCP VSCPOUT Open collector ISCPOUT = 100A 1.1 1.25 4 0.2 1.4 V A V VOF VLow FB4RE VHi FB4RE IN4- RE = 2.0V, IFB = 20A IN4- RE = -10mV, IFB = 500A 2.0 -6 6 0.2 mV V V CH1 to CH6 CH1 to CH6 VLow FB VHi FB voltage IN1- = 2.0V, IFB = 20A IN1- = 0V IFB1 = -20A 2.0 0.2 V V 0.504 0.51 0.516 V Symbol Conditions Unit
No.A0611-2/12
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LV5603T
Package Dimensions
unit : mm (typ) 3288
1.2
Pd max - Ta
Specified board : 114.3x76.1x1.6mm3 glass epoxy
9.0
Allowable power dissipation, Pd max - W
36 37
25 24
0.5
7.0
1 0.95 0.8
0.6 0.5 0.4
7.0
48 1 0.5 (0.75) 12 0.2 13
9.0
0.2
0.125
0 - 30 - 20
0
20
40
60
80
100
Ambient temperature, Ta - C
1.2max 0.1
(1.0)
SANYO : TQFP48J(7X7)
Pin Assignment
VBIAS1 OUT2N OUT6 OUT5 OUT4 OUT2 OUT3 OUT1 CTL OUT1N
38
48
47
46
45
44
VS
43
42
41
40
39
37 36 NC 35 VCC 34 SCP 33 SCPOUT 32 VREF 31 STBY1
NC 1
CT1 2
RT 3
GND 4 CSOFT6 5 FB6 6 TQFP48J IN6- 7 STBY6 8 CSOFT5 9 FB5 10 IN5- 11 STBY5 12 13 14 15 16 17 18 19 20 21 22 23 24
LV5603T
NC
30 IN129 FB1 28 CSOFT1 27 STBY2 26 IN225 FB2
CSOFT4
CSOFT3
REGOUT
CSOFT2
STBY4
FB4RE
STBY3
FB4
IN4-
IN4RE
IN3-
FB3
Top view
No.A0611-3/12
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LV5603T
Block Diagram and Sample Application Circuit
0.022F
SCPOUT VREF SCP
1F
Lithium ion x 2 (5V to 8.4V)
VCC VCC VBLAS VBATT A
SCP
VREF
A + + IN1FB1 CSOFT1
-
+
VO1=1.5V/IO1=100mA OUT1
OUT1N
B + + IN2FB2 OUT2N CSOFT2 VS
B
-
+
OUT2
VO2=2.5V/IO2=100mA
C VO3=3.3V/IO3=400mA C + + IN3FB3 CSOFT3 D IN4-RE FB4RE IN4FB4 E CSOFT4 VO5=15V/IO5=100mA D VO4=7V/IO4=10mA
-
+
OUT3
+
+ +
-
+
OUT4
E + + IN5FB5 CSOFT5
-
+ + -
ON/OFF5 OUT5
F
VO6=12V/IO6=100mA
F + + IN6FB6 CSOFT6 GND CTL
-
+ + -
ON/OFF6 OUT6
STBY
STBY6 STBY5 STBY4 STBY3 STBY2 STBY1
OSC
CT
RT
No.A0611-4/12
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LV5603T
Pin No. 31 30 29 28 39 38 Pin STBY1 IN1FB1 CSOFT1 OUT1 OUT1N STBY2 IN2FB2 CSOFT2 OUT2 OUT2N STBY3 IN3FB3 CSOFT3 OUT3 STBY4 IN4FB4 IN4RE FB4RE CSOFT4 OUT4 STBY5 IN5FB5 CSOFT5 OUT5 STBY6 IN6FB6 CSOFT6 OUT6 CT1 RT CTL SCP SCPOUT VCC VBIAS1 VREF GND VS REGOUT NC Standby input Error amplifier input Error amplifier output Soft start setting capacitor connection Output Synchronous rectification output Standby input Error amplifier input Error amplifier output Soft start setting capacitor connection Output Synchronous rectification output Standby input Error amplifier input Error amplifier output Soft start setting capacitor connection Output Standby input Error amplifier input Error amplifier output Inversion step-up error amplifier inverting input Inversion step-up error amplifier output Soft start setting capacitor connection Output Standby input Error amplifier input Error amplifier output Soft start setting capacitor connection Output Standby input Error amplifier input Error amplifier output Soft start setting capacitor connection Output Triangle wave frequency setting capacitor connection Triangle wave frequency setting resistor connection Power system control Short circuit detection circuit capacitor connection Short circuit detection circuit output Power supply voltage input Output system power supply Reference voltage output Ground Output system ground Internal circuit bias power supply No connection Functions
Pin Function
Block ch1
ch2
27 26 25 24 42 40
ch3
23 22 21 20 43
ch4
18 15 14 17 16 13 45
ch5
15 11 10 9 46
ch6
8 7 6 5 47
OSC
2 3
Control
45 34 33
Power
35 41 32 4 44
TEST NC
19 1, 36, 37
* : The REGOUT pin is the internal circuit bias power supply. This pin must be left open.
No.A0611-5/12
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LV5603T
Pin CTL STBY1 STBY2 STBY3 STBY4 STBY5 STBY6 Equivalent Circuit
Equivalent Circuits
Pin No. 48 31 27 23 18 15 8
VCC 200k STBY* CTL 30k 120k GND
30 26 22 15 11 7 17
IN1IN2IN3IN4IN5IN6IN4RE
REGOUT
IN* IN4RE
500
5k
5k GND
29 25 21 14 10 6
FB1 FB2 FB3 FB4 FB5 FB6
REGOUT
20 FB* 500
16
FB4RE
REGOUT
FB4RE
Continued on next page.
No.A0611-6/12
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Continued from preceding page. Pin No. 28 24 20 13 9 5 Pin CSOFT1 CSOFT2 CSOFT3 CSOFT4 CSOFT5 CSOFT6
LV5603T
Equivalent Circuit
REGOUT
CSOFT* 10k 500
200k
GND
39 42 43 45 46 47 38 40 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT1N OUT2N
VBIAS1
OUT* OUT*N
GND
3 RT
REGOUT
RT
500 500
GND
2 CT1
REGOUT
CT1
GND
Continued on next page.
No.A0611-7/12
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Continued from preceding page. Pin No. 34 Pin SCP
LV5603T
Equivalent Circuit
REGOUT
1.5k 13k SCP 300
GND
33 SCPOUT
SCPOUT
GND
32 VREF
VCC
VREF
14.8k
GND
19 REGOUT
VCC
VREF
GND
35 41 4 44 1 36 37 VCC VBIAS1 GND
VCC
VBIAS1 GND
VS NC
VS
NC
No.A0611-8/12
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LV5603T
STBY and CTL Pin Functions The STBY and CTL pins function as active high control inputs. There is no ESD protection diode inserted between the VCC line and the STBY pin. This means that there is no magnitude relationship between the STBY and CTL pin voltage and the VCC voltage. SCP Pin If of the FB1 to FB6 outputs goes to the high level due to the load being shorted, the SCP pin starts a charging operation and the protection circuit will operate if the shorted state is not resolved during the period tSCP. (If the protection circuit operates, all outputs are turned off.) If the application does not use this protection circuit, the SCP pin must be shorted to ground with a line that is as short as possible.
SCP [V]
Charging with a current ISCP = 4A
1.25 [V]
Short circuit
tSCP
SCP operation
SCP Charging Operation
tSCP =
CSCP x VSCP [s] ISCP
No.A0611-9/12
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LV5603T
Setting the Soft Start Time * For channel 1 (Channels 2 through 6 are the same) The channel 1 soft start time is set with the capacitor connected between CSOFT1 (CSOFT2 through CSOFT6 for the other channels) and ground.
VSOFT VB = 0.5 [V]
VCSOFT [V]
Soft start time tSOFT [S]
Charging
Set output voltage VO (fixed)
Set output voltage VO
VCC
IN-
ISF = 4.0A
CSOFT
CSOFT VB = 0.5V
RSF 200k
VB tSOFT = -CSOFT x RSF 1n(1- R x I ) [s] SF SF =2.135 x 105 x CSOFT
No.A0611-10/12
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LV5603T
Setting the Oscillator Frequency The oscillator frequency is set by the capacitor CT and the resistor RT connected to the CT pin. The oscillator produces a triangle wave with a frequency determined by CT and RT. The oscillator frequency is expressed by the following equation. 1 fOSC = 2.52 x CT x RT [Hz] Since the actual oscillator frequency will differ somewhat from the value given by the above equation due to overshoot, undershoot, and other factors, it must be verified in the actual end product. The SCPOUT Pin This pin reports the SCP and CTL states to an external microcontroller or other device. The SCPOUT pin is an open drain output, and thus requires an external pull-up resistor. If this function is not used, the SCPOUT pin should be left open.
CTL
SCP operation SCP
SCPO
No.A0611-11/12
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LV5603T
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written consent of SANYO Semiconductor Co.,Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO Semiconductor Co.,Ltd. product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above.
This catalog provides information as of January, 2007. Specifications and information herein are subject to change without notice. PS No.A0611-12/12

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