AM4951MM-G1 BCDSEMI [BCD Semiconductor Manufacturing Limited], AM4951MM-G1 Datasheet
AM4951MM-G1
Manufacturer Part Number
AM4951MM-G1
Description
BTL Drive Single-phase Full-wave Fan Motor Driver
Manufacturer
BCDSEMI [BCD Semiconductor Manufacturing Limited]
Datasheet
1.AM4951MM-G1.pdf
(3 pages)
Description
The AM4951/R/2 series 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
lock condition
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 AM4951/R series is available in MSOP-8
(12V
application only) package. The AM4952 is
available in MSOP-10 package.
Features
•
•
•
•
•
•
•
•
Applications
•
•
•
Jun. 2010
•
BTL Drive Single-phase Full-wave Fan Motor Driver
BTL
Built-in FG/RD Output
Thermal Protection Circuit
Notebook, Personal Computers
CPU Cooling Systems
Wide Usable Voltage Range (2.2V to 24V)
Restart Circuits
Built-in Hall Sensor Bias (AM4952 Only,
V
(AM4951R), FG and RD Output (AM4952)
Power Supplies in Consumer Electronics, Car
Audio and Office Peripherals
Linear Drive (Gain Resistor=1k to 360kΩ,
Gain=51dB)
Low Saturation Output (High Side and Low
Built-in Lock Protection and
Small-sized, High Thermal Capacity Package
Support Low-voltage Drive and Feature a
Side Saturation Voltage): V
(typical, I
FG
HB
off
application
=1.5V)
Output
Output
the
OUT
is
=250mA)
output
(AM4951),
only)
removed,
Single-phase
current.
or
the
PSOP-8
SAT_TOTAL
RD
When
Automatic
Full-wave
IC
Output
=1.2V
(24V
will
the
1
Benefits
Additional Available Materials
(V
•
•
•
•
•
•
•
•
Parametric Table
Supply Current 1 (mA) (V
Supply Current 2 (mA) (V
Out Low Saturation Voltage (V)
Out High Saturation Voltage (V)
Hall Input Sensitivity (mV)
FG Low Level Voltage (V)
(For AM4951/2)
RD Low Level Voltage (V)
(For AM4951R/2)
HB Voltage (V)
(For AM4952)
CC
=12V, T
Samples
Wide Operation Voltage Range
Soft-switching for Low Noise
Over Temperature Protection
High ESD and Reliability Process
Data Sheet
Reliability Report
ESD Report
BCD Semiconductor Manufacturing Limited
A
=25
o
C, unless otherwise noted.)
CT
CT
AM4951/R/2
Product Brief
=L)
=H)
0.25
0.95
0.15
0.15
1.5
6
5
7
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AM4951MM-G1 Summary of contents
Page 1
BTL Drive Single-phase Full-wave Fan Motor Driver Description The AM4951/R/2 series 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 ...
Page 2
BTL Drive Single-phase Full-wave Fan Motor Driver Pin Configuration MM Package (MSOP-8) For AM4951/R 12V Application MM Package (MSOP-10) For AM4952 Jun. 2010 MP Package (PSOP-8) For AM4951/R 24V Application BCD Semiconductor Manufacturing Limited 2 Product Brief AM4951/R/2 ...
Page 3
... No. 1600, Zi Xing Road, Shanghai ZiZhu Science-based Industrial Park, 200241, China Tel : 86-21-24162266 Fax : 86-21-24162277 Taiwan 4F, 298-1 Rui Guang Road, Nei-Hu District, Taipei, Taiwan Tel : 886-2-2656-2808 Fax : 886-2-2656-2806 Jun. 2010 Output Part Number Signal AM4951MM-G1 FG AM4951MMTR-G1 AM4951RMM-G1 RD AM4951RMMTR-G1 AM4951MP-G1 FG AM4951MPTR-G1 AM4951RMP-G1 RD AM4951RMPTR-G1 AM4952MM-G1 FG & ...