STK672-210-E Datasheet, PDF (3/10 Pages) Sanyo Semicon Device – Thick-Film Hybrid IC Unipolar Constant-Current Chopper Two-Phase Stepping Motor Driver Output Current 1.4A

Internal Block Diagram
5
4
STK672-210-E
φAB
φA Vref φBB
φB VCC2
8
9
12
6
7
10
3
2
Off
Time
setting
Off
Time
setting
SP
11
Sample Application Circuit
VCC2 = 5 V
PG
1
SUB
10
φA
9
2
φAB
8
3
At least VCC1=24V
Stepping
φB
7
4
motor
φBB
6
5
STK672-210-E
+
Ro1
Co1 = 220μF
Co2 = 10μF ₊
Ro2
12
11
1
S.GND
• The Co1 ground lead must be connected as close as possible to pin 1 on the hybrid IC.
• HC type CMOS levels are recommended as the input specifications for pins 6 to 9.
• In case of TTL input, connect a pull-up resistor. (Recommended value: 2kΩ)
• Excitation control input specifications
Corresponding output pin
Corresponding excitation control input signal
Active: High
Active: Low
2 pin
φB
φBB
3 pin
φBB
φB
4 pin
φA
φAB
5 pin
φAB
φA
P.GND
ITF02289
No. 7464-3/10