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PDF AH9280 Data sheet ( Hoja de datos )
| Número de pieza | AH9280 | |
| Descripción | Two Phase Dual-coil High Voltage Smart Fan Motor Driver | |
| Fabricantes | BCD | |
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Data Sheet
Two Phase Dual-coil High Voltage Smart Fan Motor Driver AH9280
General Description
The AH9280 is a most advanced smart fan controller
and Hall IC driver manufactured by special CMOS
process. It is designed for 5V and 12V cooling fan.
To allow survival in a harsh environment and lower
the total system cost, the AH9280 has been designed
with many powerful functions while almost
eliminating all discrete components, such as,
capacitor, resistor, transistor, diode and PC board.
The AH9280 can operate normally in an ambient
temperature up to 125°C due to its Hall IC circuitry
and power MOSFET output that allow low power
dissipation.
When there is no motion for one second, the IC will
automatically detect the locked rotor conditions, and
enter protection mode, shutting off the motor driver
for five seconds. Then, the IC will turn on the motor
driver for one second to detect whether there is
rotation condition, if fails, the IC will shut off motor
driver for five seconds again. This sequence will be
repeated until rotation condition is detected, and the
IC enters normal operation. This feature can
effectively prevent the AH9280 from overheating and
damage due to long-time locked rotor condition.
Specially designed for driving large fans, the AH9280
is optimized for low start-up voltage.
The AH9280 is available in TO-94 package.
Features
• High-sensitivity Integrated Hall Sensor
• Low Start-up Voltage
• 5V and 12V Operation
• Peak Output Current up to 1200mA
• Power-efficient CMOS and Power MOSFETs
• Built-in Output Protection Clamping Diode
• Locked Rotor Shutdown and Auto-restart
• ESD Rating: 6000V (Human Body Model)
400V (Machine Model)
Applications
• 5V/12V DC Brushless Motor/Fan
• PC, Server, Laptop Cooling Fan
• Power Supply Cooling Fan
• Large/Small Sized Fan
Oct. 2011 Rev. 1. 2
TO-94
Figure 1. Package Type of AH9280
BCD Semiconductor Manufacturing Limited
1
1 page  
Data Sheet
Two Phase Dual-coil High Voltage Smart Fan Motor Driver AH9280
Electrical Characteristics
VCC =12V, TA =25°C, unless otherwise specified.
Parameter
Supply Voltage
Supply Current
Output Current
Output Leakage Current
Saturation Voltage
Output On Time
Output Off Time
Output Zener Break-down Voltage
Symbol
VCC
ICC
IOUT
ILEAKAGE
VSAT
TON
TOFF
VZ
Conditions
Operating
Average
IOUT=350mA
Min Typ
2.5 12
4
0.1
600
0.8
5
35
Max
16
6
500
10
1000
Unit
V
mA
mA
µA
mV
s
s
V
Magnetic Characteristics
VCC =12V, TA =25°C, unless otherwise specified.
Parameter
Operating Point
Releasing Point
Hysteresis
Symbol
Min
Typ
Max
Unit
BOP 20 50 Gauss
BRP -50 -20
Gauss
BHYS
40 Gauss
Oct. 2011 Rev. 1. 2
VDO (V)
High Off-state
Turn Off
BHYS
Turn On
VSAT
N
BRP
0
Low
On-state
S
BOP
Magnetic Flux Density (Gauss)
BCD Semiconductor Manufacturing Limited
5
5 Page 
Data Sheet
Two Phase Dual-coil High Voltage Smart Fan Motor Driver AH9280
Mechanical Dimensions
TO-94
Unit: mm(inch)
0.500(0.020)
0.700(0.028)
1.520(0.060)
1.720(0.068)
0.700(0.028)
0.900(0.035)
2.000(0.079)
2.300(0.091)
1.100(0.043)
1.400(0.055)
Package Sensor Location
(For Hall IC)
3.780(0.149)
4.080(0.161)
45 °TYP
4.980(0.196)
5.280(0.208)
0.360(0.014)
0.510(0.020)
0.380(0.015)
0.550(0.022)
3.450(0.136)
3.750(0.148)
14.000(0.551)
15.300(0.602)
0.360(0.014)
0.500(0.020)
Oct. 2011 Rev. 1. 2
3.710(0.146)
3.910(0.154)
1.270(0.050) TYP
BCD Semiconductor Manufacturing Limited
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet AH9280.PDF ] | |
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