Ordering number : ENA0611 LV5603T Bi-CMOS LSI Six-Channel Switching Regulator Controller Overview 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 = 25°C Parameter Maximum supply voltage Allowable power dissipation Symbol Conditions Ratings VCC max Pd max Mounted on a circuit board.* Unit -0.3 to 16 V 0.95 W Operating temperature Topr -30 to +85 °C Storage temperature Tstg -55 to +125 °C * Specified circuit board : 114.3×76.1×1.6mm3 : glass epoxy board Recommended Operating Conditions at Ta = 25°C Parameter Symbol Conditions Ratings Unit Supply voltage VCC 3 to 15 Supply voltage VBIAS 3 to 15 V Timing resistor RT 7 to 30 kΩ CT 100 to 1000 Timing capacitor Triangle wave frequency fOSC 0.1 to 1.3 V 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 LV5603T Electrical Characteristics at Ta = 25°C, VCC = VBIAS = 3.6V, SCP = 0V Parameter Symbol Ratings Conditions min typ Unit max Error amplifier 1 IN+ pin internal bias voltage VB Value added to the error amplifier 0.504 0.51 0.516 V 0.2 V offset at the error amplifier + side Output low voltage CH1 to CH6 VLow FB voltage IN1- = 2.0V, IFB = 20µA Output High voltage CH1 to CH6 VHi FB IN1- = 0V IFB1 = -20µA 2.0 V Error amplifier 2 IN4-RE pin offset voltage VOF Output low voltage VLow FB4RE Output High voltage VHi FB4RE -6 6 IN4- RE = 2.0V, IFB = 20µA IN4- RE = -10mV, IFB = 500µA 0.2 2.0 mV V V Protection circuit Threshold voltage VSCP SCP pin current ISCP Short circuit detection signal pin VSCPOUT 1.1 1.25 1.4 Open collector V µA 4 0.2 V ISCPOUT = 100µA Software start block (CH1 to CH4) CSOFT = 0V 3.2 4 4.8 µA 160 200 240 kΩ Soft start current CH1 to CH6 ISF Soft start resistance CH1 to CH6 RSF CH1 to CH3 Duty MAX1, 2, 3 Out monitor, IN- = 0V 100 Duty MAX4 Out monitor, IN- = 0V 75 80 85 % Duty MAX5,6 Out monitor, IN- = 0V 80 85 90 % OUT pin high side on resistance ROUT SOUR IO = 10mA 25 60 Ω OUT pin high side on resistance ROUT SINK IO = 10mA 10 24 Ω Current setting pin voltage VT RT RT = 10kΩ 0.57 Output current IOH CT Output current ratio ∆IO CT Oscillation frequency FOSC1 Fixed duty Maximum on duty 1 Maximum on duty 2 CH4 Maximum on duty 3 CH5 to CH6 % Output block 1 to 6 Triangle wave oscillator block V µA 190 RT = 10kΩ, CT1, 2 = 560pF 0.8 1.0 1.2 360 450 520 1.227 1.240 1.253 kHz Reference voltage block Reference voltage Line regulation VREF VLN REF VCC = 3V to 15V V 10 mV 0.6 V 60 µA Control circuit On state voltage VON CTL OFF state voltage VOFF CTL Pin input current IIN CTL 2.0 V VCTL = 2V Standby circuit On voltage VON STBY Off voltage VOFF STBY Pin input current IIN STBY 2.0 V VSTBY = 2V 0.6 V 60 µA 6.5 mA 1 µA All circuits VCC current consumption ICC Standby mode current consumption IOFF IN1- to IN6- = 1V VSTBY = VCTL = 0V 5 IOFF = ICC + IBIAS No.A0611-2/12 LV5603T Package Dimensions unit : mm (typ) 3288 Pd max – Ta Allowable power dissipation, Pd max – W 1.2 9.0 36 0.5 7.0 25 7.0 48 9.0 24 37 13 1 12 0.125 1 0.95 0.8 0.6 0.5 0.4 0.2 0 – 30 – 20 0.2 0.5 Specified board : 114.3×76.1×1.6mm3 glass epoxy 0 20 40 60 80 100 Ambient temperature, Ta – °C 0.1 1.2max (1.0) (0.75) SANYO : TQFP48J(7X7) CTL OUT6 OUT5 OUT4 VS OUT3 OUT2 VBIAS1 OUT2N OUT1 OUT1N NC Pin Assignment 48 47 46 45 44 43 42 41 40 39 38 37 NC 1 36 NC CT1 2 35 VCC RT 3 34 SCP GND 4 33 SCPOUT CSOFT6 5 32 VREF LV5603T FB6 6 31 STBY1 TQFP48J IN6- 7 30 IN1- STBY6 8 29 FB1 CSOFT5 9 28 CSOFT1 13 14 15 16 17 18 19 20 21 22 23 24 STBY4 REGOUT CSOFT3 FB3 IN3- STBY3 CSOFT2 25 FB2 IN4RE STBY5 12 FB4RE 26 IN2- IN4- IN5- 11 FB4 27 STBY2 CSOFT4 FB5 10 Top view No.A0611-3/12 LV5603T Block Diagram and Sample Application Circuit 1µF Lithium ion × 2 (5V to 8.4V) VREF SCP SCPOUT 0.022µF SCP VREF VCC VCC VBLAS VBATT A A + + VO1=1.5V/IO1=100mA -+ - IN1- OUT1 FB1 OUT1N CSOFT1 B B + + -+ - IN2- VO2=2.5V/IO2=100mA OUT2 FB2 OUT2N CSOFT2 VS C VO3=3.3V/IO3=400mA C + + -+ - IN3- OUT3 FB3 CSOFT3 D D IN4-RE VO4=7V/IO4=10mA + + + FB4RE IN4- -+ - OUT4 FB4 E CSOFT4 VO5=15V/IO5=100mA E + + ON/OFF5 + + - - IN5- OUT5 FB5 F CSOFT5 VO6=12V/IO6=100mA F + + ON/OFF6 + + - - IN6- OUT6 FB6 CSOFT6 GND CTL CT RT STBY1 OSC STBY2 STBY3 STBY4 STBY5 STBY6 STBY No.A0611-4/12 LV5603T Pin Function Block Pin No. Pin ch1 31 STBY1 30 IN1- Error amplifier input 29 FB1 Error amplifier output 28 CSOFT1 39 OUT1 ch2 ch3 ch4 ch5 ch6 OSC Control Power Functions Standby input Soft start setting capacitor connection Output 38 OUT1N Synchronous rectification output 27 STBY2 Standby input 26 IN2- Error amplifier input 25 FB2 Error amplifier output 24 CSOFT2 42 OUT2 Soft start setting capacitor connection Output 40 OUT2N Synchronous rectification output 23 STBY3 Standby input 22 IN3- Error amplifier input 21 FB3 Error amplifier output 20 CSOFT3 43 OUT3 Output 18 STBY4 Standby input 15 IN4- 14 FB4 17 IN4RE Inversion step-up error amplifier inverting input 16 FB4RE Inversion step-up error amplifier output 13 CSOFT4 45 OUT4 15 STBY5 11 IN5- Error amplifier input 10 FB5 Error amplifier output Soft start setting capacitor connection Error amplifier input Error amplifier output Soft start setting capacitor connection Output Standby input 9 CSOFT5 46 OUT5 8 STBY6 7 IN6- Error amplifier input 6 FB6 Error amplifier output 5 CSOFT6 47 OUT6 2 CT1 Triangle wave frequency setting capacitor connection 3 RT Triangle wave frequency setting resistor connection 45 CTL Power system control 34 SCP Short circuit detection circuit capacitor connection 33 SCPOUT 35 VCC 41 VBIAS1 32 VREF Reference voltage output 4 GND Ground 44 VS TEST 19 REGOUT NC 1, 36, 37 NC Soft start setting capacitor connection Output Standby input Soft start setting capacitor connection Output Short circuit detection circuit output Power supply voltage input Output system power supply Output system ground Internal circuit bias power supply No connection * : The REGOUT pin is the internal circuit bias power supply. This pin must be left open. No.A0611-5/12 LV5603T Equivalent Circuits Pin No. Pin 48 CTL 31 STBY1 27 STBY2 23 STBY3 18 STBY4 15 STBY5 8 STBY6 Equivalent Circuit VCC 200kΩ STBY* CTL 30kΩ 120kΩ GND 30 26 22 15 IN1IN2- 7 IN5IN6- 17 IN4RE 11 REGOUT IN3IN4- IN* IN4RE 500Ω 5kΩ 5kΩ GND 29 FB1 25 FB2 21 FB3 14 FB4 10 FB5 6 FB6 16 FB4RE REGOUT 20Ω FB* 500Ω REGOUT FB4RE Continued on next page. No.A0611-6/12 LV5603T Continued from preceding page. Pin No. Pin 28 CSOFT1 24 CSOFT2 20 CSOFT3 13 CSOFT4 9 CSOFT5 5 CSOFT6 Equivalent Circuit REGOUT CSOFT* 10kΩ 500Ω 200kΩ GND 39 OUT1 42 OUT2 43 OUT3 45 OUT4 46 OUT5 47 OUT6 38 OUT1N 40 OUT2N VBIAS1 OUT* OUT*N GND 3 RT REGOUT RT 500Ω 500Ω GND 2 CT1 REGOUT CT1 GND Continued on next page. No.A0611-7/12 LV5603T Continued from preceding page. Pin No. Pin 34 SCP Equivalent Circuit REGOUT 1.5kΩ 13kΩ SCP 300Ω GND 33 SCPOUT SCPOUT GND 32 VREF VCC VREF 14.8kΩ GND 19 REGOUT VCC VREF GND 35 VCC 41 VBIAS1 4 GND VCC VBIAS1 GND 44 VS 1 NC 36 VS NC 37 No.A0611-8/12 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 [V] 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. Charging with a current ISCP = 4µA 1.25 [V] Short circuit tSCP SCP operation SCP Charging Operation tSCP = CSCP × VSCP [s] ISCP No.A0611-9/12 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 VCSOFT [V] VB = 0.5 [V] Soft start time tSOFT [S] Charging Set output voltage VO (fixed) VCC Set output voltage VO ISF = 4.0µA IN- CSOFT CSOFT VB = 0.5V RSF 200kΩ VB tSOFT = -CSOFT × RSF 1n(1- R × I ) [s] SF SF =2.135 × 105 × CSOFT No.A0611-10/12 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 × CT × 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 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