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AM7232 Datasheet(PDF) 3 Page - AMtek SEMICONDUCTORS CO., LTD

Part # AM7232
Description  Single Phase Full-Wave Motor Driver for Fan Motor
PDF  16 Pages
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Manufacturer  AMTEK [AMtek SEMICONDUCTORS CO., LTD]
Direct Link  http://www.amtek-semi.com
Logo AMTEK - AMtek SEMICONDUCTORS CO., LTD

AM7232 Datasheet(HTML) 3 Page - AMtek SEMICONDUCTORS CO., LTD

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AM7232
Motor Driver ICs
http://www.amtek-semi.com
OCT.. 2
20
01
13
3 V
V1
1..0
0
Specifications subject to change without notice
- 3 -
Block Diagram
Fig.1 Block diagram
Pin Description
PIN No Pin Name
Function
PIN No Pin Name
Function
1
OUT2
Motor output terminal
9
RMI
Minimum Speed setting terminal
2
NC
No Connect
10
VL
Hi duty slope setting terminal
3
GND
Analog ground terminal
11
VH
Low duty slope setting terminal
4
NC
No Connect
12
VREF
Reference Voltage terminal
5
H+
Hall input terminal
13
PWM
PWM signal input terminal
6
HB
Hall Bias
14
VCC
Power supply terminal
7
H-
Hall input terminal
15
NC
No Connect
8
FG
FG signal output terminal
16
OUT1
Motor output terminal
E-pad
PGND
Power ground terminal
Truth Table
H+
H-
PWM
OUT1
OUT2
FG
Mode
H
L
H
H
L
L (Output Tr : ON)
Operation mode
L
H
L
H
Z (Output Tr : OFF)
H
L
L
L
L
L (Output Tr : ON)
L
H
L
L
Z (Output Tr : OFF)
H
L
-
L
L
L (Output Tr : ON)
Lock mode
L
H
L
L
Z (Output Tr : OFF)
Z：Open drain output (High impedance)



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