STK672-340-E Datasheet, PDF (3/13 Pages) Sanyo Semicon Device – Thick-Film Hybrid IC Unipolar Fixed-Current Chopper (External-Excited PWM) Scheme and Built-in Phase Signal Distribution IC Two-Phase Stepping Motor Driver (Square Wave Drive) Output Current 2.2A

Package Dimensions
unit:mm (typ)
46.6
41.2
3.6
1
12
2.0
0.5
(9.6) ^{11 2=22}
STK672-340-E
8.5
0.4
2.9
Internal Equivalent Circuit Block Diagram
VDD(5V) 6
VDD
MODE 8
MODE
Excitation mode
selection
FAO
CLOCK 9
CWB 10
CLOCK
CWB
Phase advance
counter
Phase excitation
FAB
signal generation
FBO
FBB
RESETB 11
RESETB
RESETB 12
RESETB
AI
Chopping
BI
circuit
CI
VSS
A
AB
5
4
F1
F2
R1
B
BB
3
2
F3
F4
R2
1 GND
Vref 7
ITF02169
No.A1254-3/13