Ordering number : ENA2037C LB1909MC Monolithic Digital IC Stepping Motor Driver IC http://onsemi.com Overview The LB1909MC is motor driver IC that can operate on a wide supply voltage range (2.5V to 16V). The IC is ideal for use in 2-phase excitation drive of general-purpose 2-phase bipolar stepping motors including dampers for refrigerators. Features • Wide supply voltage range : 2.5V to 16V • Low saturation voltage : VO(sat) = 0.25V typ at IO = 200mA. • Built-in shoot-through current protection circuit. • No standby current consumption (or zero). • Built-in thermal shutdown circuit. • Small package : SOIC10 Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Maximum power source voltage VCC max -0.3 to +20 V Applied output voltage VOUT max -0.3 to +20 V Applied input voltage VIN max -0.3 to +18 GND pin outflow current IGND Allowable power consumption Pd max Operating temperature Topr -30 to +85 °C Storage temperature Tstg -40 to +150 °C Mounted on the specified board * V 800 mA 820 mW * Specified board: 114.3mm × 76.1mm × 1.6mm, glass epoxy board. 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. Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Semiconductor Components Industries, LLC, 2013 June, 2013 53012 SY/32812 SY 2012322-S00003/31512 SY No.A2037-1/4 LB1909MC Allowable Operating Range at Ta = 25°C Parameter Symbol Supply voltage VCC Input high level voltage VIH Input low level voltage VIL Conditions Ratings Unit 2.5 to 16 V 1.8 to 10 V -0.3 to +0.7 V Pins ENA, IN1, IN2 Electrical Characteristics at Ta = 25°C, VCC = 12V Parameter Symbol Ratings Conditions min Power source current Output saturation voltage Input current Unit typ max ICC0 ENA = L 0.1 10 μA ICC1 ENA = H 25 35 mA VOUT1 IOUT = 200mA 0.25 0.35 V VOUT2 IOUT = 400mA 0.50 0.75 V IIN VIN = 5V 120 160 μA Ttsd Design guarantee *2 180 °C 60 °C Thermal protection block *1 Thermal shutdown operation temperature ΔTtsd Temperature hysteresis width Spark killer diode Reverse current IS(leak) orward voltage VSF IOUT = 400mA 30 μA 1.7 V *1 The thermal protection function is a feature to prevent the product from smoking and firing under unusual conditions. It is not intended to guarantee operation of the product under an ambient temperature exceeding the operating temperature range. *2 Design guarantee is not tested in individual units. Package Dimensions unit : mm (typ) 3426A 4.9 1.75 MAX 0.21 Allowable power dissipation, Pd max -- W 0.835 0.37 6.0 5 0.41 1.5 1.0 Specified board : 114.3×76.1×1.6mm3 glass epoxy board 0.82 0.8 0.6 0.42 0.4 0.2 0 -30 0.175 1 Pd max -- Ta 1.0 6 3.9 10 0 30 60 90 120 Ambient temperature, Ta -- C SANYO : SOIC10 No.A2037-2/4 LB1909MC Pin Assignment VCC 1 IN1 3 IN2 4 LB1909MC ENA 2 10 OUT1 NC 5 9 OUT2 8 OUT3 7 OUT4 6 GND Top view Truth table Input Output Remarks ENA IN1 IN2 OUT1 OUT2 OUT3 OUT4 L × × OFF OFF OFF OFF H L L H L H H Standby mode Channel 1 Forward Reverse L H L H L H Channel 2 Forward Reverse Block Diagram 30kΩ 100kΩ 35kΩ IN1 3 Control block circuit ENA 2 Thermal shutdown circuit VCC 1 10 9 OUT1 Motor OUT2 100kΩ 35kΩ IN1 4 8 7 100kΩ 6 OUT3 OUT4 GND No.A2037-3/4 LB1909MC Timing Chart (2 phase excitation drive) ENA IN1 IN2 Forward Channel 1 output Reverse Forward Reverse Forward Standby Channel 2 output Standby Reverse Forward Reverse Forward Reverse ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. 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SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PS No.A2037-4/4