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AM4953 Datasheet

BTL Drive Single-phase Full-wave Fan Motor Driver

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Data Sheet
BTL Drive Single-phase Full-wave Fan Motor Driver
AM4953
General Description
The AM4953 is a single-phase BTL output fan motor
driver designed by bipolar process. This IC
features high efficiency, silent operation and includes
lock shutdown and automatic restart functions. When
the motor is under lock condition, the lock
shutdown function turns off the output current. When
the lock condition is removed, the IC will
restart automatically and allow DC fan to run. It is
applied for high reliability and low noise application,
such as personal computers, notebook, car audio,
CPU cooling systems and power supplies in
consumer electronics systems.
The AM4953 is available in MSOP-10, SSOP-10,
MSOP-8, SOIC-8 and PSOP-8 packages.
Features
• BTL Output Single-phase Full-wave Linear
Drive (Gain Resistor=1k to 360k, Gain=51dB)
• Support Low-voltage Drive and Feature a Wide
Usable Voltage Range (2.2V to 16V)
• Low Saturation Output (High Side and Low Side
Saturation Voltage): VSAT_TOTAL=1.2V (typical,
IOUT=300mA)
• Built-in Lock Protection and Automatic Restart
Circuits
• Built-in FG/RD Output
• Built-in Hall Sensor Bias (VHB=1.45V)
• Thermal Protection Circuit
• Small-sized, High Thermal Capacity Package
Applications
• Notebook, Personal Computers
• Power Supplies in Consumer Electronics, Car
Audio
• CPU Cooling Systems
MSOP-10
SSOP-10
MSOP-8
SOIC-8
PSOP-8
Figure 1. Package Types of AM4953
Apr. 2012 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
1


Diodes Semiconductor Electronic Components Datasheet

AM4953 Datasheet

BTL Drive Single-phase Full-wave Fan Motor Driver

No Preview Available !

Data Sheet
BTL Drive Single-phase Full-wave Fan Motor Driver
AM4953
Pin Configuration
MM Package
(MSOP-10)
M8 Package
(MSOP-8)
IN+ 1
HB 2
IN- 3
CT 4
OUT1 5
10 RD
9 FG
8 VCC
7 OUT2
6 GND
IN+ 1
IN- 2
CT 3
OUT1 4
8 RD
7 VCC
6 OUT2
5 GND
GS Package
(SSOP-10)
IN+ 1
HB 2
IN- 3
CT 4
OUT1 5
10 RD
9 FG
8 VCC
7 OUT2
6 GND
M Package
(SOIC-8)
IN+ 1
IN- 2
CT 3
OUT1 4
8 FG/RD
7 VCC
6 OUT2
5 GND
MP Package
(PSOP-8)
IN+ 1
IN- 2
CT 3
OUT1 4
8 FG
7 VCC
6 OUT2
5 GND
Apr. 2012 Rev. 1. 5
Figure 2. Pin Configuration of AM4953 (Top View)
BCD Semiconductor Manufacturing Limited
2


Part Number AM4953
Description BTL Drive Single-phase Full-wave Fan Motor Driver
Maker BCD
Total Page 16 Pages
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