Ordering number : EN7233A LB1936V Monolithic Digital IC 1-2 Phase Excitation Stepping Motor Driver http://onsemi.com Overview The LB1936V is a 2-phase bipolar drive stepping motor driver IC that supports low-voltage drive. The LB1936V's miniature package and minimal number of external components reduces the required mounting area. It also provides high-efficiency motor drive and can reduce circuit current consumption. Since it provides a current detection pin and supports PWM control input, it can be used to implement current chopper control at the system level. The LB1936V is optimal for the stepping motor drive in scanners, digital cameras, and printers. Features • Low saturation voltage forward/reverse motor driver (VO sat = 0.25V at IO = 200mA) • Two H-bridge channels • Wide usable voltage range (Allowable voltage range : 2.5V to 9.5V, absolute maximum rating : 10.5V) • Supports PWM input (Low power consumption can be achieved in slow delay mode that uses IN1/IN2 = H/H logic.) • Motor (coil) current detection pin • Built-in thermal shutdown circuit • Miniature package (SSOP16 : 225mil) Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Maximum output voltage Maximum input voltage Ground pin source current Allowable power dissipation Symbol Conditions Ratings Unit VCC max -0.3 to +10.5 VS max -0.3 to +10.5 V VS+ VSF V -0.3 to +8.0 V VOUT max VIN max IGND max Pd max V Per channel 800 mA When mounted on a circuit board * 740 mW Operating temperature Topr -20 to +85 °C Storage temperature Tstg -40 to +150 °C * Specified circuit board : 114.3 × 76.1 × 1.6mm3, glass epoxy 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 40407 TI PC B8-5595 No.7233-1/5 LB1936V Allowable Operating Range at Ta = 25°C Parameter Symbol Conditions Ratings Unit Supply voltage VCC 2.5 to 9.5 V VS 2.5 to 9.5 High-level input voltage VIH 2.0 to 7.5 V Low-level input voltage VIL -0.3 to 0.7 V Electrical Characteristics at Ta = 25°C, VCC = VS = 5V Parameter Symbol VCC system power supply current VS system power supply current Output saturation voltage Input current Ratings Conditions min typ Unit max ICC0 IN1 = IN2 = IN3 = IN4 = 0V 0.1 1 μA ICC1 IN1 = IN3 = 3V, IN2 = IN4 = 0V 10 16 mA IS0 IN1 = IN2 = IN3 = IN4 = 0V 0.1 1 μA IS1 IN1 = IN3 = 3V, IN2 = IN4 = 0V 12 19 mA VOUT1 VCC = VS = 3V to 7.5V, VIN = 3V or 0V, IOUT = 200mA (High and low side) - 0.25 0.4 V VOUT2 VCC = VS = 4V to 7.5V, VIN = 3V or 0V, IOUT = 400mA (High and low side) - 0.5 0.8 V 150 200 μA 30 μA 1.7 V IIN VIN = 5V Spark killer diode Reverse current IS(leak) Forward voltage VSF IOUT = 400mA Package Dimensions unit:mm (typ) 3178B 5.2 0.5 6.4 9 4.4 16 1 8 0.65 Mounted on the specified circuit board 0.74 0.6 0.4 0.2 0 -20 0 20 40 60 80 100 Ambient temperature, Ta – °C (1.3) 1.5max 0.22 0.8 Specified circuit board : 114.3 × 76.1 × 1.6mm3 glass epoxy board 0.1 (0.33) 0.15 Allowable power dissipation, Pd max – W Pd max – Ta 1.0 SANYO : SSOP16(225mil) No.7233-2/5 LB1936V Pin Assignment VS 1 16 P-GND VCC 2 15 RFG1 IN1 3 14 OUT1 IN2 4 13 OUT2 LB1936V S-GND 5 12 OUT3 IN3 6 11 OUT4 IN4 7 10 RFG2 VS 9 8 (NC) Top view Block Diagram 10μF VCC VS 30kΩ OUT1 IN1 Stepping Motor 10μF 30kΩ OUT2 IN2 30kΩ 30kΩ IN4 30kΩ RFG1 VS Thermal shutdown 30kΩ IN3 Control block 30kΩ OUT3 OUT4 30kΩ RFG2 S-GND P-GND LB1936V No.7233-3/5 LB1936V Truth Table IN1 IN2 L IN3 IN4 OUT1 OUT2 L off off (1) L H L H (2) H L H L off H (4) H(*) H(*) H off (4)′ - - OUT3 OUT4 Output mode - (3) L L off off (5) L H L H (6) H L H L (7) off H (8) H(*) H(*) H off (8)′ - L : low, H : high *: The output logic mode when IN1/IN2 = H/H is determined by the immediately preceding IN1/IN2 mode. The post-switching output modes will be as follows. When switching from (2): (4) When switching from (3): (4)' When switching from (1): Undefined (Either (4) or (4)') The modes when IN3/IN4 = H/H operate similarly as described below. When switching from (6): (8) When switching from (7): (8)' When switching from (5): Undefined (Either (8) or (8)') ICC -- VCC 15 10 5 0 0 1 2 3 4 5 IS -- VS 20 Supply current, IS – mA Supply current, ICC – mA 20 6 7 8 9 15 10 5 0 10 0 1 2 Supply voltage, VCC – V Output saturation voltage, VO(sat) – V Input current, IIN – μA 1 to N4 I 50 0 0 1 2 3 4 5 6 7 8 9 10 VO(sat) -- IO IN 100 5 0.8 200 150 4 Supply voltage, VS – V IIN -- VIN 250 3 6 Input voltage, VIN – V 7 8 9 0.7 0.6 0.5 e ow dl 0.4 gh Hi 0.3 sid an 0.2 0.1 0 0 100 200 300 400 500 600 Output current, IO – mA No.7233-4/5 LB1936V ICC -- Ta 10 5 0 -40 -20 0 20 40 60 80 100 120 140 Output saturation voltage, VO(sat) – V Ambient temperature, Ta – °C 10 5 0 -40 -20 0 20 40 60 80 100 120 140 Ambient temperature, Ta – °C VO(sat) -- Ta 0.7 IS -- Ta 15 Supply current, Is – mA Supply current, ICC – mA 15 High and low side 0.6 0.5 0.4 0.3 0.2 -40 -20 0 20 40 60 80 100 120 140 Ambient temperature, Ta – °C ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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