APX9268 Datasheet, PDF (7/13 Pages) Anpec Electronics Coropration – Single-Phase Full-Wave Motor Driver for Silent Fan Motor

APX9268
Block Diagram
VCC
GND
IN+
IN ^-
HB
OSC
Lock
Detection
Hall
Bias
500Ω
500Ω
150kΩ
-
+
TSD
+
-
150kΩ
OUT1
OUT2
FG
Typical Application Circuit
OUT2
1
IN+
2
HB
3
Hall
IN-
4
R1
GND
8
OUT1
7
D2
D1
VCC _Zener
6
6V
FG
5
C1
R_FG = 10kΩ
V_IN
Pull High
Voltage
Note 3: In hot plug application, it’s necessary to protect against a hot plug input voltage overshoot by adding an input
zener diode between the VCC and GND to clamp the overshoot. In normal operation, the zener diode isn’t
stressed because output current doesn’t reverse to VCC
Copyright © ANPEC Electronics Corp.
7
Rev. A.7 - Mar., 2008
www.anpec.com.tw