Ordering number : ENA2016 Monolithic Digital IC LB1846MC Low-Voltage/Low Saturation Voltage Type Bidirectional Motor Driver Overview The LB1846MC is 2-channel low-voltage, low saturation voltage type bidirectional motor driver IC that is optimal for use as 2-phase stepping motor drivers in printers, cameras and other portable equipment. The output circuits are of the bipolar type, with PNP transistors in the upper side and NPN transistors in the lower side, and they achieve low saturation output and low power characteristics despite being provided in a miniature package. The LB1846MC products can directly control a motor from signals from a microcontroller. The LB1846MC is optimal for 1-2 phase excitation drive for 2-phase stepping motors using 4-input logic (IN1, IN2, IN3 and IN4). Another point is that these IC include built-in thermal shutdown circuits so that IC scorching or burning is prevented in advance even if the IC output is shorted. Functions • Optimal for 1-2 phase excitation drive for 2-phase stepping motors • Standby current: Zero • Low saturation voltage. VO (sat) = 0.55V typical at IO = 400mA • Thermal shutdown circuit • No limitations on the magnitude relationship between the power supply voltage (VCC) and the input voltage (VIN) Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Maximum supply voltage VCC max -0.3 to +8.0 V Output voltage VOUT VCC + VSF V Input voltage VIN -0.3 to +8.0 V Ground pin outflow current IGND Per channel 800 mA Allowable power dissipation Pd max When mounted* 870 mW Operating temperature Topr -20 to +75 °C Storage temperature Tstg -40 to +150 °C *1: When mounted on the specified printed circuit board (114.3mm × 76.2mm × 1.5mm), 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. 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. If you should intend to use our products for new introduction or other application different from current conditions on the usage of automotive device, communication device, office equipment, industrial equipment etc. , please consult with us about usage condition (temperature, operation time etc.) 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. 30712 SY 20120112-S00002 No.A2016-1/4 LB1846MC Allowable Operating Ranges at Ta = 25°C Parameter Symbol Conditions Ratings Unit Supply voltage VCC 2.5 to 7.5 Input high-level voltage VIH 2.5 to 7.5 V V Input low-level voltage VIL -0.3 to +0.7 V Electrical Characteristics at Ta = 25°C, VCC = 5V Parameter Symbol Current drain Output saturation voltage Input current Ratings Conditions min typ Unit max ICC0 IN1, 2, 3, 4 = 0V 0.1 10 µA ICC1 IN1, 3 = 3V, IN2, 4 = 0V 30 40 mA V VOUT1 VIN = 3V or 0V, VCC = 3 to 7.5V, IOUT = 200mA 0.27 0.4 VOUT2 VIN = 3V or 0V, VCC = 4 to 7.5V, IOUT = 400mA 0.55 0.8 V IIN VIN = 5V 150 200 µA 30 µA 1.7 V Spark Killer Diode Reverse current IS (leak) Forward voltage VSF IOUT = 400mA Package Dimensions unit : mm (typ) 3420 5.0 Allowable power dissipation, Pdmax - mW 0.5 4.4 6.2 10 1 2 1.0 0.15 0.35 0.05 (1.5) 1.55 0.8 MAX Pd max -- Ta 1000 870 800 600 522 400 200 0 --20 0 SANYO : MFP10SK(225mil) 20 40 60 80 100 Ambient temperature, Ta - C Pin Assignment VCC 1 10 OUT4 IN4 2 9 OUT3 IN3 3 8 OUT1 IN1 4 7 OUT2 IN2 5 6 GND LB1846MC Top view No.A2016-2/4 LB1846MC Block Diagram VCC IN1 OUT1 Stepping Motor OUT2 IN3 Thermal shutdown circuit Control block IN2 IN4 OUT3 OUT4 GND Truth Tables IN1 IN2 IN3 IN4 OUT1 OUT2 OUT3 OUT4 Note L L L L OFF OFF OFF OFF Standby H L L L H L OFF OFF L H L H L H L H L L H L OFF OFF H L L H H L L H H L L H L L L H OFF OFF L H L H L H L H L L L H OFF OFF L H H L L H H L L H H H - - - - H H 1-2 phase excitation The logic output for the first high-level input is produced. *2 Note: *1 "-" indicates a "don‛t care" input. *2 If two high levels (H/H) are input to the IN1/IN2 pins with the timing shown in (1) in the figure below, then the IN2 input that arrived later will be ignored and the IC will function as though an H/L combination is applied to the IN1/IN2 pins. Similarly, the timing shown in (2) results in a L/H combination on the IN1/IN2 pins. (1) (2) IN1(IN3) L H H IN1(IN3) L L H IN2(IN4) L L H IN2(IN4) L H H No.A2016-3/4 LB1846MC ICC - VCC Characterstics 50 IIN -- VIN 280 VCC=5V VCC=VIN, IN1 / 2 / 3 / 4=H / L / H / L 240 Input current, IIN - μA Current drain, ICC - mA 40 30 20 200 160 120 80 10 40 0 0 1 2 3 4 5 6 7 8 9 Power-supply voltage, VCC - V Output saturation voltage, VOUT - V 0 1 2 3 4 5 6 7 8 9 Input voltage, VIN - V VOUT -- IOUT 1.0 0 VCC=VIN=4.0V 0.8 0.6 0.4 0.2 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Input current, IOUT - A 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. 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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 March, 2012. Specifications and information herein are subject to change without notice. PS No.A2016-4/4