THB6128

THB6128 Development Specification Proposal 1. Application: PWM current control stepping motor driver 2. Package: MFP30KR 3. Features      1 channel PWM current control stepping motor driver BiCDMOS process IC Output on-resistance( High side 0.3 Ω, Low side 0.25 Ω, Total 0.55 Ω; Ta = 25°C, Io = 2.0 A) 2, 1-2, W1-2, 2W1-2, 4W1-2, 8W1-2, 16W1-2, 32W1-2 phase excitation are selectable Advance the excitation step with the only step signal input  Available forward reverse control  Iomax=2.2A     Over current protection circuit Thermal shutdown circuit Input pull down resistance With reset pin and enable pin 4. Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Supply voltage VMmax Output current Iomax Logic input voltage VINmax VREF input voltage VREFmax MO input voltage VMOmax DOWN input voltage VDOmax Operating temperature Topg Storage temperature Tstg Ratings 40 2.2 6 6 6 6 -20 to +85 -55 to +150 Unit V A V V V V °C °C 5. Recommended Operating Range at Ta=25°C Parameter Symbol Supply voltage range VM Logic input voltage range VIN VREF input voltage range VREF Ratings 9 to 32 0 to 5 0 to 3 Unit V V V 1 6. Electrical Characteristics at Ta =25°C, VM=24V, VREF=1.5V Parameter Symbol Conditions Standby mode current drain IMstn ST=”L” current drain IM ST=”H”,OE=”H”, no load Thermal shutdown TSD Design guarantee temperature Thermal hysteresis width ΔTSD Design guarantee Logic pin input current IinL1 VIN=0.8V IinH1 VIN=5V Logic input high-level Vinh voltage Logic...