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| Ordering number:ENN6195A Monolithic Digital IC LB1934T 3V Camera 1.5-Channel Driver Overview 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. Package Dimensions unit:mm 3246-TSSOP20 [LB1934T] 20 11 0.5 4.4 6.4 0.08 (1.0) 1.2max 6.5 Features * 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.) 0.65 (0.33) 1 0.22 10 0.15 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 = 25C Parameter Maximum supply voltage Maximum output current Maximum applied output voltage Maximum applied input voltage Allowable power dissipation Operating temperature Storage temperature Symbol VS max VCC max IO max1 IO max2 VO max VI max Pd max Topr Tstg VS VCC OUT1, OUT2 OUT3P, OUT3N OUT1, OUT2, OUT3P, OUT3N MD1, MD2, IN1, IN2 With specified substrate* Conditions Ratings -0.3 to +8.0 -0.3 to +8.0 2000 1500 -0.3 to VS+VSF -0.3 to +8.0 850 -20 to +70 -55 to +150 Unit V V mA mA V V mW C C *Specified substrate : 76.1x114.3x1.6mm3 (glass exposy) Allowable Operating Ranges at Ta = 25C Parameter Power supply voltage Input high-level voltage Input low-level voltage Symbol VS VCC VINH VINL VS VCC MD1, MD2, IN1, IN2 MD1, MD2, IN1, IN2 Conditions Ratings 1.0 to 7.0 1.4 to 7.0 1.4 to 7.0 -0.3 to +0.4 Unit V V V V Electrical Characteristics at Ta = 25C, VS=VCC=3V Parameter [Operating current drain] Standby mode current drain VS operating current drain 1 VS operating current drain 2 VCC operating current drain 1 VCC operating current drain 1 [Output circuits] OUT1/OUT2 output saturation voltage OUT3P output saturation voltage OUT3N output saturation voltage Spark killer diode reverse current Spark killer diode forward voltage [Input circuit] Input high-level current Input low-level current IINH IINL VIN=5V (MD1, MD2, IN1, IN2) VIN=0V (MD1, MD2, IN1, IN2) 70 100 0 A A VOsat1 VOsat2 VOsat3 IS (leak) VSF OUT1, OUT2, OUT3P, OUT3N (PNP+NPN) Io=1000mA (PNP) IO=1000mA (NPN) IO=1000mA 0.5 0.4 0.3 0.75 0.55 0.45 10 1.7 V V V A V ISTB IS1 IS2 ICC1 ICC1 ICC+IS (Forward/reverse) (Brake) (1ch/2ch/half-bridge mode) (IN1/IN2 input ignore mode) 0.1 70 75 4 1 3 90 95 5 2 A mA mA mA mA Symbol Conditions Ratings min typ max Unit Allowable Power Dissipation, Pd max - mW 1000 Pd max - Ta With specified substrate (76.1x114.3x1.6mm3 glass exposy) 850 800 600 400 200 0 -20 0 20 40 60 70 80 100 Ambient Temperature, Ta - C No.6195-2/6 LB1934T Pin Assignment OUT 3N P-GND P-GND OUT2 OUT2 OUT 3P P-GND OUT1 OUT1 P-GND 20 19 18 17 16 15 14 13 12 11 LB1934T 1 VS 2 VCC 3 MD1 4 MD2 5 IN1 6 IN2 7 NC 8 S-GND 9 NC 10 VS Top view Pin Function Pin number 1, 10 2 13, 14, 17, 18 8 19, 20 15, 16 11 12 3 4 5 6 7, 9 Pin name VS VCC P-GND S-GND OUT1 OUT2 OUT3P OUT3N MD1 MD2 IN1 IN2 NC Function Motor drive power supply pin (+) Control system power supply pin (+) Motor drive ground pin (-) Control system ground pin (-) Motor drive output pin (sink/source) Motor drive output pin (sink/source) Motor drive output pin (source) Motor drive output pin (sink) Control input pin (High active) Control input pin (High active) Control input pin (High active) Control input pin (High active) Not used Truth Table In p u t MD1 MD2 IN 1 L L L H L H L L H H L H L H L H L H H H * IN 2 L L H H L L H H L L H H * H H L Half-bridge L H H H H L 2 ch H L H L H H 1 ch O U T1 O u tp u t O U T2 O U T 3P O U T 3N M o de Standby Forward rotation Reverse rotation B ra k e Standby Forward rotation Reverse rotation B ra k e Standby 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 M M OUT3N OUT3P OUT1 OUT2 Block Diagram VS LB1934T P-GND VCC Logic circuit Thermal protection circuit 80k 80k 65k 65k 80k 65k 80k 65k S-GND MD1 MD2 IN1 IN2 No.6195-4/6 LB1934T Sample Application Circuits 1) 2-motor control (3 control signals) SW-Reg C P U VCC MD1 MD2 IN1 IN2 S-GND VS OUT1 M OUT2 M OUT3N OUT3P P-GND 2) 1-motor + 2-load control (3 control signals) SW-Reg C P U VCC MD1 MD2 IN1 IN2 S-GND VS OUT1 M OUT2 OUT3N OUT3P P-GND 3) 2-motor control (4 control signals) SW-Reg VCC MD1 VS OUT1 M C P U MD2 IN1 IN2 S-GND P-GND OUT2 M OUT3N OUT3P 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 |
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