Diodes AM4967 - Manual (Page 4)

ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR AM4967
Data Sheet
4
Oct. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Functional Block Diagram
Figure 3. Functional Block Diagram of AM4967
5V
Reference
Controller
VCC
VREF
HIN+
HIN-
1
Lock Shutdown
and
Auto Restart
Oscillation
Hysteresis
Amp
Thermal Shutdown
CT
LS VMIN VPWM COSC CS GND
OUT2
OUT2B
OUT1
OUT1B
FG/RD
2
3
4 5 6 7
8
9
10
11
12
13
14
15
16
Hysteresis
Amp
Pre-
driver