Ordering number : ENA2060 Monolithic Digital IC LB1935FA Stepping Motor Driver IC Overview LB1935FA is IC with forward/reverse motor drive 2-channel in which low saturation voltage and low voltage operation possible. Its small sized package is optimal for 2 phase excitation drive of 2 phase bipolar stepping motors for various portable devices such as digital still cameras. Features • Low saturation voltage, VO (sat) = 0.3V typ at IO = 150mA • Built-in shoot-through current protection circuit • No standby current consumption (or zero) • Built-in thermal shutdown circuit • Micro10 small-sized package Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Maximum power source voltage VCC max Applied output voltage VOUT max OUT1, OUT2, OUT3, OUT4 pin Applied input voltage VIN max ENA, IN1, IN2 pin GND Pin outflow current I GND Per channel 400 mA Allowable power dissipation Pd max With substrate* 400 mW Operating temperature Topr -20 to +75 °C Storage temperature Tstg -40 to +150 °C -0.3 to +8.0 V VCC+VSF V -0.3 to +8.0 V * Specified substrate: 20.0mm×10.0mm×0.8mm, paper phenol Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. 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. 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. 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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. 52312 SY 20120514-S00001 No.A2060-1/4 LB1935FA Allowable Operating Range at Ta = 25°C Parameter Symbol Source voltage VCC Input high level voltage VIH Input low level voltage VIL Conditions Ratings Unit 2.2 to 7.5 V ENA, IN1, IN2 pin 1.8 to 7.5 V ENA, IN1, IN2 pin -0.3 to +0.7 V Electric Characteristics at Ta = 25°C, VCC = 3.3V Ratings Parameter Symbol Conditions Unit min Power source current Output saturation voltage Input current typ max 1 μA 13 19 mA 0.2 0.3 V 0.6 V ICC0 ENA = 0V, VIN = 3V or 0V ICC1 ENA = 3V, VIN = 3V or 0V VOUT1 ENA = 3V, VIN = 3V or 0V, IOUT = 100mA VOUT2 ENA = 3V, VIN = 3V or 0V, IOUT = 200mA 0.4 IIN VIN = 3V 40 60 μA IENA VENA = 3V 40 60 μA 1 μA 1.7 V 0.1 Spark killer diode Reverse current IS(leak) Forward voltage VSF IOUT = 200mA Package Dimensions unit : mm (typ) 3428 3.0 Pd max -- Ta Allowable power dissipation, Pd max -- mW 500 0.55 3.0 4.9 10 1 2 0.5 0.16 1.03 0.25 Specified Substrate : 20.0×10.0×0.8mm3 Peper phenol 400 300 240 200 100 0 -20 0 20 40 60 80 100 0.1 Ambient temperature, Ta -- °C SANYO : Micro10 Pin Assignments VCC 1 10 OUT4 IN2 2 9 OUT3 ENA 3 8 OUT1 IN1 4 7 OUT2 (NC) 5 6 GND LB1935FA Top view No.A2060-2/4 LB1935FA Block Diagram Truth Table Input ENA IN1 Output IN2 OUT1 OUT2 OUT3 OUT4 Remarks L - - OFF OFF OFF OFF Standby H L L H L H L 2-phase excitation L H H L L H H H L H L H H L L H H L No.A2060-3/4 LB1935FA Timing Chart Timing chart below shows the 2 phase excitation stepping motor. ENA IN1 IN2 OUT1 OUT2 OUT3 OUT4 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. Regarding monolithic semiconductors, if you should intend to use this IC continuously under high temperature, high current, high voltage, or drastic temperature change, even if it is used within the range of absolute maximum ratings or operating conditions, there is a possibility of decrease reliability. Please contact us for a confirmation. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. 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SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of May, 2012. Specifications and information herein are subject to change without notice. No.A2060-4/4