am4961 BCD Semiconductor Manufacturing Limited, am4961 Datasheet - Page 5

• Manufacturer Part Number: am4961
• Description: Ingle Phase Full Wave Direct Pwm Motor Driver
• Manufacturer: BCD Semiconductor Manufacturing Limited

VPWM
COSC
VREF
VMIN
HIN+
HIN-
Functional Block Diagram
Jun. 2008 Rev. 2. 2
SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER
HB
14 (11)
11 (8)
12 (9)
13 (10)
7 (4)
6 (3)
A (B)
A for 20-pin
8 (5)
Hysteresis Amp
Reference
Hall Bias
Voltage
Oscillation Circuit
B for 14-pin
15 (12)
Lock Shutdown
Auto Restart
Figure 3. Functional Block Diagram of AM4961
Control
Circuit
CT
and
16 (13)
Thermal Shutdown
GND
5
1, 2, 3, 18,
19, 20
PGND
BCD Semiconductor Manufacturing Limited
Pre-driver
17 (14)
Data Sheet
10 (7)
4 (1)
9 (6)
5 (2)
AM4961
OUT2
OUT1
FG
RD
VCC