AP1346/1347
Two Coil Fan Motor Predriver
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 0.0 Jun 9, 2004
1/5
Features
- Compatible to a Hall element
- Operating voltage (V
CC
) : 4V to 28V
- Lock shutdown and automatic restart
- Rotation detection (RD) output name as AP1347
- Speed indication output (FG) named as AP1346
- Output current I
O
=70mA
(max)
- Operating temperature (T
opr
) : -30ºC to +85ºC
- SOP8 package
- Include Thermal Shutdown circuit
Application
- High voltage, high current brushless DC fan
General Description
The AP1346/7 fan motor predriver is suited for
two-coil brush-less DC fan. All functions, including
lock shutdown, automatic restart, speed indication
(FG), have been integrated into one chip. When the
motor is under lock condition, lock shutdown
function turns off the output. When the lock
condition is removed, the IC automatically restarts
and allows DC fan to run. In addition, the FG
function is to indicate the rotation speed and the RD
function is to detect the motor status.
Pin Assignment
AP1346/1347
3
4
8
7
6
5
2
1
HS(+)
VCC
HS(-)
FG/RD
GND
CT
OUT2
OUT1
( Top view )
SOP-8L
Pin Descriptions
Name Description
VCC Power input
HS(+) Hall input
FG /RD
Speed indication / Rotation
detection
HS(-) Hall input
GND Ground
CT Timing capacitor
OUT2 Driver output
OUT1 Driver output
Ordering Information
Part Number Package
S: SOP-8L
AP134X X - X X X
Packing
Blank : Tube
A : Taping
Lead
L: Lead Free
Blank: Normal
6: AP1346
7: AP1347
Wafer Body
Blank or
A~Z : if necessary
to specify
Not Recommended for New Design
