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AH9281 PDF даташит

Спецификация AH9281 изготовлена ​​​​«BCD» и имеет функцию, называемую «Two Phase Dual-coil High Voltage Smart Fan Motor Driver».

Детали детали

Номер произв AH9281
Описание Two Phase Dual-coil High Voltage Smart Fan Motor Driver
Производители BCD
логотип BCD логотип 

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AH9281 Даташит, Описание, Даташиты
Data Sheet
Two Phase Dual-coil High Voltage Smart Fan Motor Driver with FG/RD AH9281/82
General Description
The AH9281/82 is a one-chip solution for driving
two-coil brushless DC motors and fans.
Based on the advanced CDMOS process, the IC
contains a Hall-effect sensor, dynamic offset
correction and powerful output drivers with 1200mA
peak output current capability.
Specially designed for driving large fans, the device
is optimized for low start-up voltage. Frequency
Generator or Rotation Detection is available. The
open drain output makes easier the connectivity with
any external interface such as hardware monitoring or
Super I/O IC.
The AH9281/82 is available in TO-95 and SOT-89-5
packages.
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
• Integrated Tachometer (AH9281) or Alarm
(AH9282) Signal Output
• 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 or Small Fans
TO-95
SOT-89-5
Figure 1. Package Types of AH9281/82
Oct. 2011 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
1









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AH9281 Даташит, Описание, Даташиты
Data Sheet
Two Phase Dual-coil High Voltage Smart Fan Motor Driver with FG/RD AH9281/82
Pin Configuration
Z5 Package
(TO-95)
5
4
3
2
1
(Front View)
GND
DOB
DO
FG/RD
VCC
R Package
(SOT-89-5)
DOB
5
DO
4
123
VCC GND FG/RD
(Top View)
Figure 2. Pin Configuration of AH9281/82
Pin Description
Pin Number
Pin Name
TO-95 SOT-89-5
Function
1
1
VCC
Power supply pin
2 3 FG/RD Frequency Generator (Rotation Detection) open drain output
3 4 DO Output pin 1
4
5
DOB
Output pin 2
5
2
GND
Ground pin
Oct. 2011 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
2









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AH9281 Даташит, Описание, Даташиты
Data Sheet
Two Phase Dual-coil High Voltage Smart Fan Motor Driver with FG/RD AH9281/82
Functional Block Diagram
A (B)
A for TO-95
B for SOT-89-5
Figure 3. Functional Block Diagram of AH9281/82
Oct. 2011 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
3










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Номер в каталогеОписаниеПроизводители
AH9280Two Phase Dual-coil High Voltage Smart Fan Motor DriverBCD
BCD
AH9281Two Phase Dual-coil High Voltage Smart Fan Motor DriverBCD
BCD
AH9282Two Phase Dual-coil High Voltage Smart Fan Motor DriverBCD
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