LB1838JM_10

Ordering number : ENA0927A Monolithic Digital IC LB1838JM Overview Low-Saturation Bidirectional Motor Driver for Low-Voltage Drive The LB1838JM is a low-saturation two-channel bidirectional motor driver IC for use in low-voltage applications. It has a wide operating temperature range of -40 to 80°C and is ideal for 2-phase excitation bipolar stepping motor driver IC used in automotive components (other than critical safety parts), consumer and industrial products, and many other applications. Features • Low voltage operation (2.5V min) • Low saturation voltage (upper transistor + lower transistor residual voltage ; 0.40V typ at 400mA). • Through-current prevention circuit built in • Separate logic power supply and motor power supply • Spark killer diodes built in • Thermal shutdown circuit built in • Compact package (14-pin MFP) Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Symbol VCC max VS max Output supply voltage Input supply voltage GND pin flow-out current Allowable power dissipation VOUT VIN IGND Pd max1 Pd max2 Operating temperature Storage temperature 3 Conditions Ratings -0.3 to +10.5 -0.3 to +10.5 VS to VSF -0.3 to +10 Unit V V V V A mW mW °C °C Per channel Independent IC * Mounted on a board. 1.0 550 800 -40 to +85 -55 to +150 Topr Tstg * Mounted on a substrate: 30×30×1.5mm , glass epoxy board. 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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. 31110 SY / 91207 MS PC 20070831-S00003 No.A0927-1/5 LB1838JM Allowable Operating Ranges at Ta = 25°C Parameter Supply voltage Symbol VCC VS Input high-level voltage Input low-level voltage VIH VIL Conditions Ratings 2.5 to 9.0 1.8 to 9.0 1.8 to 9.0 -0.3 to +0.7 Unit V V V V Electrical Characteristics at Ta = 25°C, VCC = 3V Parameter Supply current Symbol ICC0 ICC1 Output saturation voltage VOUT1 VOUT2 Input current IIN IENA Output sustaining voltage Spark killer diode Reverse current Forward voltage IS (leak) VSF VCC1, VS = 7V IOUT = 400mA 30 1.7 μA V VO (SUS) Conditions min EMA1, 2 = 0V, VIN1 = 3V or 0V EMA1 = 3V, VIN1 = 3V or 0V EMA1 = 3V, VIN1 = 3V or 0V, IOUT = 200mA EMA1 = 3V, VIN1 = 3V or 0V, IOUT = 400mA VCC = 6V, VIN = 6V VCC = 6V, ENA = 6V IOUT = 400mA 9 Ratings typ 0.1 12 0.20 0.40 max 10 18 0.28 0.60 200 200 μA mA V V μA μA V Unit Package Dimensions unit : mm (typ) 3111A 8.0 14 8 1000 Pd max -- Ta Mounted on a board : 30.0×30.0×1.5mm3 glass epoxy Mounted on a board Allowable power dissipation, Pd max – mW 800 4.4 6.4 1.7MAX 1 (1.0) 1.0 0.35 7 0.15 0.63 600 550 Independent IC 416 286 400 0.1 (1.5) 200 SANYO : MFP14S(225mil) 0 – 40 – 20 0 2025 40 60 8085 100 Ambient temperature, Ta – °C Pin Assignment OUT3 OUT4 ENA2 Vcont 8 7 GND VS2 14 13 12 11 10 LB1838JM 1 2 3 4 5 6 Top view OUT1 OUT2 IN2 9 Note) Ground both GND pins. No.A0927-2/5 ENA1 GND VCC VS1 IN1 LB1838JM Block Diagram VCC VS2 VS1 10μF IN1 60kΩ 80kΩ Control OUT1 Stepping Motor ENA1 60kΩ 80kΩ OUT2 Thermal shutdown IN2 60kΩ 80kΩ Control OUT3 ENA2 60kΩ 80kΩ GND OUT4 GND Vcont * : As long as the voltages applied to VCC, VS1, VS2, ENA1, ENA2, IN1 and IN2 are within the limits set by the absolute maximum ratings, there are no restrictions on the relationship of each voltage level in comparison with the others (regarding which is higher or lower). (ex. VCC = 3V, VS1, 2 = 2V, ENA = IN = 5V) Truth Table IN1/2 L H L H ENA1/2 H H L L OUT1/3 H L OFF OFF OUT2/4 L H OFF OFF Mode Forward Reverse Standby Standby No.A0927-3/5 LB1838JM Vcont pin VCC VS OUT M 300Ω ID VZ OUT ID = VZ r (= constant) IN Vcont As shown in the above diagram, the Vcont pin outputs the voltage of the band gap Zener VZ + VF (=1.93V). In normal use, this pin is left open. The drive current ID is varied by the Vcont voltage. However, because the band gap Zener is shared, it functions as a bridge. 1.0 VO(sat) – IO 200 IIN – VIN VCC = VS = 3V A EN ) V =3 A N Output saturation voltage, VO (sat) – V 0.8 160 Input current, IIN – μA 0.6 120 IN 1( E 0.4 80 0.2 40 0 0 100 200 300 400 500 600 0 0 1 2 3 4 5 6 7 8 9 10 Output current, IO – mA 0.6 VO(sat) – Ta Input voltage, VIN – V 20 IS – VS Output saturation voltage, VO (sat) – V VCC = VS = IN = 3V VO(sat) = total value VCC = VIN =3V For 1 channel 0.5 16 0.4 IO A = 400m Current drain, IS – mA 60 80 100 120 140 12 0.2 0.3 IO = 200mA 8 0.1 4 0 – 40 – 20 0 20 40 0 0 1 2 3 4 5 6 7 8 9 10 11 12 Ambient temperature, Ta – °C Supply voltage, VS – V No.A0927-4/5 LB1838JM 10 ICC – VCC VCC = VIN =3V For 1 channel Current drain, ICC – mA 8 6 Rev 4 erse Forward 2 0 0 1 2 3 4 5 6 7 8 9 10 11 12 Supply voltage, VCC – V SANYO 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. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents 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 Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. 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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 January,2010. Specifications and information herein are subject provides information as of March, 2007. Specifications and information herein t o change without notice. PS No.A0927-5/5