SMA7036M
Description of pins Reg. Oscillator MOSFET gate drive circuit
Synchronous chopping circuit
Reg. Chopping blanking timer (5 µ s typ) +
- Oscillator MOSFET gate drive circuit
Synchronous chopping circuit
Chopping blanking timer (5 µ s typ) +
- 1pin 6pin 10pin 15pin
Excitation input Active H Active L OUT A OUT A OUT A OUT A OUT B OUT B OUT B OUT B
Chopping OFF timer (12 µ s typ)
Chopping OFF timer (12 µ s typ)
SYNC A
SYNC B
REF A
REF B
GND A
GND B
Rs A
9 s Diagram of Standard External Circuit (Remended Circuit Constants)
Vcc (46V max)
+
Excitation signal time chart
8 VS 2 Sync A SMA7036M Vb (5V) 11 Pch MOS r1 Rs A 7 Rs Ref A Ref B 3 13 Rs B 9 Rs GA 4 GB 12 Sync B INB 14 INB INA 5 INA 1 6 10 15
Rs B
2-phase excitation clock IN A IN B 0 H L 1 H H 2 L H 3 L L 0 H L 1 H H
: r1 : r2 RS (1 to 2W) : Pch MOS : Inv :
8kΩ 2kΩ (VR) 1Ω typ HN1J02FU (Toshiba) 7404 r2
Inv Disable (High Active)
2-Phase Stepper Motor Unipolar Driver IC (2-Phase...
