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PDF AM4953 Data sheet ( Hoja de datos )

Número de pieza AM4953
Descripción 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

1 page




AM4953 pdf
Data Sheet
BTL Drive Single-phase Full-wave Fan Motor Driver
AM4953
Absolute Maximum Ratings (Note 1, TA=25ºC)
Parameter
Supply Voltage
Peak Output Current
FG/RD Pull-up Voltage
FG/RD Output Current
Thermal Resistance
(Junction to Ambient)
Thermal Resistance
(Junction to Case)
Power Dissipation
Operating Temperature
Storage Temperature
ESD (Human Body Model)
ESD (Machine Model)
Symbol
VCC
IOUT
VFG/VRD
IFG/IRD
θJA
θJC
PD
TOP
TSTG
ESD
ESD
Value
20
800
15
10
MSOP-10
195
MSOP-8
205
SSOP-10
155
SOIC-8
160
PSOP-8
110
MSOP-10
46
MSOP-8
48
SSOP-10
39
SOIC-8
40
PSOP-8
36
MSOP-10
MSOP-8
585
SSOP-10
800
SOIC-8
780
PSOP-8
960
-40 to 125
-55 to 150
4000
200
Unit
V
mA
V
mA
°C/W
°C/W
mW
ºC
ºC
V
V
Note 1: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to
the device. These are stress ratings only, and functional operation of the device at these or any other conditions
beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute
Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Supply Voltage
Hall Input Voltage
Operating Ambient Temperature
Symbol
VCC
VICM
TA
Min
2.2
0
-40
Max
16
VCC-1.5
105
Unit
V
V
ºC
Apr. 2012 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
5

5 Page





AM4953 arduino
BTL Drive Single-phase Full-wave Fan Motor Driver
Mechanical Dimensions
Data Sheet
AM4953
MSOP-10
Unit: mm(inch)
Apr. 2012 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
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