AM4967GS BCDSEMI [BCD Semiconductor Manufacturing Limited], AM4967GS Datasheet - Page 4

• Manufacturer Part Number: AM4967GS
• Description: ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR
• Manufacturer: BCDSEMI [BCD Semiconductor Manufacturing Limited]

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