1
THB6128 Development Specification Proposal
1. Application: PWM current control stepping motor driver
2. Package: MFP30KR
3. Features
z 1 c
hannel PWM current control stepping motor driver
z BiCDMOS pr
ocess IC
z O
utput on-resistance( High side 0.3 Ω, Low side 0.25 Ω, Total 0.55 Ω; Ta = 25°C, Io = 2.0 A)
z 2, 1-2,
W1-2, 2W1-2, 4W1-2, 8W1-2, 16W1-2, 32W1-2 phase excitation are selectable
z Advan
ce the excitation step with the only step signal input
z A
vailable forward reverse control
z Io
max=2.2A
z Over curre
nt protection circuit
z Th
ermal shutdown circuit
z In
put pull down resistance
z W
ith reset pin and enable pin
4. Absolute Maximum Ratings at Ta = 25°C
Parameter Symbol Ratings Unit
Supply voltage VMmax 36 V
Output current Iomax 2.2 A
Logic input voltage VINmax 6 V
VREF input voltage VREFmax 3 V
MO input voltage VMOmax 6 V
DOWN input voltage VDOmax 6 V
Operating temperature Topg -20 to +85 °C
Storage temperature Tstg -55 to +150 °C
5. Recommended Operating Range at Ta=25°C
Parameter Symbol Ratings Unit
Supply voltage range VM 9 to 32 V
Logic input voltage range VIN 0 to 5 V
VREF input voltage range VREF 0 to 3 V
