Ordering number:ENN6195A Monolithic Digital IC LB1934T 3V Camera 1.5-Channel Driver Overview Package Dimensions The LB1934T is a low-voltage, low-saturation forward/ reverse driver IC with built-in 1.5-channel bridge. Its compact, low-profile package makes it ideal for use in compact cameras powered by 3V lithium batteries. Using direct microcontroller drive, it is possible to control standby, forward rotation, reverse rotation, and braking of two motors for film rewind and lens drive by means of only three control signals. The 0.5-channel section of the 1.5channel bridge can be divided into sink/source output, allowing configurations such as 1-channel bridge + sink output + source output. unit:mm 3246-TSSOP20 [LB1934T] • Low voltage drive possible. When using same power supply for V CC and V S : VCC=VS=1.4V min. When using separate power supply for VCC and VS : VS=1.0V min., VCC=1.4V min. • Low saturation voltage : residual voltage (upper side transistor + lower side transistor) =0.5V typ. at Io=1A. • Zero power dissipation in standby mode. • Direct microcontroller drive possible (any strength relationships of voltage supported between microcontroller control signal and VCC or VS). • Logic power supply and motor power supply can be supplied at separate pins. • Built-in thermal protection circuit. • Number of control signals can be optimized for the set. “2-motor control” or “1-motor + 2-load control” can be implemented by 3 control signals. In addition to the above, 4 control signals allow implemention of a “input ignore mode” where two control signals are used in conjunction with other IC input signals. • Built-in spark killer diode. • Compact, low-profile package (TSSOP-20 ; thickness=1.1 mm typ.) 4.4 6.4 11 0.22 10 0.15 (1.0) 1.2max 1 0.08 0.65 (0.33) Features 0.5 6.5 20 SANYO : TSSOP20 Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO 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 products described or contained herein. SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 12502TN (KT)/62599RM (KI) No.6195–1/6 LB1934T Specifications Absolute Maximum Ratings at Ta = 25˚C Parameter Symbol VS max VCC max Conditions Ratings Unit VS –0.3 to +8.0 V –0.3 to +8.0 V IO max1 VCC OUT1, OUT2 IO max2 OUT3P, OUT3N Maximum applied output voltage VO max OUT1, OUT2, OUT3P, OUT3N Maximum applied input voltage VI max Pd max MD1, MD2, IN1, IN2 Maximum supply voltage Maximum output current Allowable power dissipation 2000 mA 1500 mA –0.3 to VS+VSF –0.3 to +8.0 With specified substrate* 850 V V mW Operating temperature Topr –20 to +70 ˚C Storage temperature Tstg –55 to +150 ˚C *Specified substrate : 76.1×114.3×1.6mm3 (glass exposy) Allowable Operating Ranges at Ta = 25˚C Parameter Symbol Conditions Power supply voltage VS VCC Input high-level voltage VINH VCC MD1, MD2, IN1, IN2 Input low-level voltage VINL MD1, MD2, IN1, IN2 Ratings Unit VS 1.0 to 7.0 V 1.4 to 7.0 V 1.4 to 7.0 V –0.3 to +0.4 V Electrical Characteristics at Ta = 25˚C, VS=VCC=3V Parameter Symbol Conditions Ratings min typ Unit max [Operating current drain] Standby mode current drain ISTB VS operating current drain 1 IS1 ICC+IS 0.1 3 µA (Forward/reverse) 70 90 mA VS operating current drain 2 VCC operating current drain 1 IS2 ICC1 (Brake) 75 95 mA (1ch/2ch/half-bridge mode) 4 5 VCC operating current drain 1 mA ICC1 (IN1/IN2 input ignore mode) 1 2 mA [Output circuits] OUT1/OUT2 output saturation voltage VOsat1 (PNP+NPN) Io=1000mA 0.5 0.75 V OUT3P output saturation voltage VOsat2 (PNP) IO=1000mA 0.4 0.55 V OUT3N output saturation voltage VOsat3 (NPN) IO=1000mA 0.3 0.45 V Spark killer diode reverse current IS (leak) 10 µA Spark killer diode forward voltage VSF OUT1, OUT2, OUT3P, OUT3N 1.7 V Input high-level current IINH µA IINL VIN=5V (MD1, MD2, IN1, IN2) VIN=0V (MD1, MD2, IN1, IN2) 100 Input low-level current 0 µA Allowable Power Dissipation, Pd max – mW [Input circuit] Pd max - Ta 1000 850 800 70 With specified substrate (76.1×114.3×1.6mm3 glass exposy) 600 400 200 0 –20 0 20 40 60 70 80 100 Ambient Temperature, Ta – °C No.6195–2/6 LB1934T OUT1 OUT1 P-GND P-GND OUT2 OUT2 P-GND P-GND OUT 3N OUT 3P Pin Assignment 20 19 18 17 16 15 14 13 12 11 VCC MD1 MD2 IN1 6 7 8 9 10 Top view VS 5 NC 4 S-GND 3 NC 2 IN2 1 VS LB1934T Pin Function Pin number Pin name 1, 10 VS Function Motor drive power supply pin (+) 2 VCC 13, 14, 17, 18 P-GND Control system power supply pin (+) Motor drive ground pin (–) 8 S-GND Control system ground pin (–) 19, 20 OUT1 Motor drive output pin (sink/source) 15, 16 OUT2 Motor drive output pin (sink/source) 11 OUT3P Motor drive output pin (source) 12 OUT3N Motor drive output pin (sink) 3 MD1 Control input pin (High active) 4 MD2 Control input pin (High active) 5 IN1 Control input pin (High active) 6 IN2 Control input pin (High active) 7, 9 NC Not used IN 1 IN 2 L L Truth Table In p u t MD1 L L MD2 L H H L H H O u tp u t O U T1 O U T2 L H L L H L H H H H H L L H L L L H H H H L L L H H H * * 1 ch Forward rotation Reverse rotation B ra k e Standby H L M o de O U T 3N Standby H H O U T 3P H L 2 ch H Forward rotation Reverse rotation B ra k e Standby H L H Half-bridge S o ur c e S in k S o ur c e Disregard IN1/IN2 input Note : "*" in the input column means "don't care". Blank in the output column means "off". No.6195–3/6 S-GND VCC P-GND VS 80kΩ MD1 65kΩ OUT1 M OUT3N 80kΩ MD2 65kΩ 80kΩ Logic circuit OUT2 M IN1 65kΩ OUT3P 80kΩ IN2 65kΩ Thermal protection circuit LB1934T Block Diagram No.6195–4/6 LB1934T Sample Application Circuits 1) 2-motor control (3 control signals) SW-Reg VCC MD1 C VS OUT1 M MD2 P U OUT2 M IN1 OUT3N OUT3P IN2 S-GND P-GND 2) 1-motor + 2-load control (3 control signals) SW-Reg C P U VCC MD1 VS OUT1 M MD2 OUT2 IN1 OUT3N OUT3P IN2 S-GND P-GND VCC VS 3) 2-motor control (4 control signals) SW-Reg OUT1 MD1 C P U M MD2 OUT2 M IN1 OUT3N OUT3P IN2 S-GND P-GND To other IC Note : 1-motor + 2-load control can also be implemented with 4 control signals. No.6195–5/6 LB1934T Specifications of any and all SANYO 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. SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or 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 products(including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be expor ted without obtaining the expor t 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 permission of SANYO Electric 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 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. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of January, 2002. Specifications and information herein are subject to change without notice. PS No.6195–6/6