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| Ordering number : ENN7932A LB1935T LB1935CL Overview Monolithic Digital IC Stepping Motor Driver IC LB1935T/LB1935CL 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 * MSOP10 small-sized package (3.0mmx4.9mmx1.1mm typ) [LB1935T] * ECSP2828-10 ultraminiature leadless package (2.8mmx2.8mmx0.8mm typ) [LB1935CL] Absolute Maximum Ratings at Ta = 25C Parameter Maximum Power Source Voltage Applied Output Voltage Applied Input Voltage GND Pin Outflow Current Allowable Power Consumption Symbol VCC max VOUT max VIN max I GND Pd max Pd max Operating Temperature Storage Temperature Topr Tstg OUT1, OUT2, OUT3, OUT4 pin ENA, IN1, IN2 pin Per channel With substrate* With substrate* [LB1935T] [LB1935CL] Conditions Ratings -0.3 to +8.0 VCC+VSF -0.3 to +8.0 400 400 450 -20 to +75 -40 to +150 C C Unit V V V mA mW * Specified substrate : 20.0mmx10.0mmx0.8mm paper phenol Allowable Operating Range at Ta = 25C Parameter Source Voltage Input High Level Voltage Input Low Level Voltage Symbol VCC VIH VIL ENA, IN1, IN2 pin ENA, IN1, IN2 pin Conditions Ratings 2.2 to 7.5 1.8 to 7.5 -0.3 to +0.7 Unit V V V N3004 TN IM / 91004 JO IM No.7932-1/6 LB1935T, LB1935CL Electric Characteristics at Ta = 25C, VCC = 3.3V Parameter Power Source Current Symbol ICC0 ICC1 Output Saturation Voltage VOUT1 VOUT2* Input Current IIN IENA Spark killer diode Reverse Current Forward Voltage IS(leak) VSF* IOUT = 200mA [LB1935T only] 1 1.7 A V Conditions min ENA = 0V, VIN = 3V or 0V ENA = 3V, VIN = 3V or 0V ENA = 3V, VIN = 3V or 0V, IOUT = 100mA ENA = 3V, VIN = 3V or 0V, IOUT = 200mA [LB1935T only] VIN = 3V VENA = 3V Ratings typ 0.1 13 0.2 0.4 40 40 max 1 19 0.3 0.6 60 60 A mA V V A A Unit Note : *For LB1935CL, it is a design assured value. Package Dimensions unit : mm 3297 [LB1935T] Package Dimensions unit : mm 3301 [LB1935CL] No.7932-2/6 LB1935T, LB1935CL Pin Assignments VCC 1 10 OUT4 VCC 1 10 OUT4 IN2 2 9 OUT3 IN2 2 9 OUT3 ENA 3 LB1935T 8 OUT1 ENA 3 LB1935CL 8 OUT1 IN1 4 7 OUT2 IN1 4 7 OUT2 (NC) 5 6 GND Top view (NC) 5 6 GND Top view ILB01601 No.7932-3/6 LB1935T, LB1935CL Block Diagram Truth Table Input ENA L H IN1 L L H H IN2 L H H L OUT1 OFF H H L L OUT2 OFF L L H H Output OUT3 OFF H L L H OUT4 OFF L H H L Remarks Stdby 2-phase excitation No.7932-4/6 LB1935T, LB1935CL Timing Chart Timing chart below shows the 2 phase excitation stepping motor. No.7932-5/6 LB1935T, LB1935CL PS No.7932-6/6 |
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