参数资料
型号: AH5798-WTG-7
厂商: Diodes Inc
文件页数: 1/11页
文件大小: 0K
描述: IC FAN MOTOR DRVR BLDC TSOT23-5
标准包装: 1
应用: 风扇电机驱动器,无刷(BLDC)
输出数: 1
电流 - 输出: 300mA
电源电压: 1.8 V ~ 5.5 V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: SOT-23-5 细型,TSOT-23-5
供应商设备封装: TSOT25
包装: 标准包装
其它名称: AH5798-WTG-7DIDKR
AH5798
SINGLE PHASE HALL EFFECT LATCH SMART
FAN MOTOR CONTROLLER
Description
The AH5798 is a single chip solution for driving single-coil
brushless direct current (BLDC) fans and motors. The
Pin Assignments
( Top View )
integrated full-bridge driver output stage uses soft switching
to minimize audible switching noise and electromagnetic
interference (EMI) providing a low noise solution.
Vdd 1
5 FG
To help protect the motor coil, the AH5798 provides Rotor
Vss
2
NC
Lock Protection which shuts down output drive if rotor lock is
detected. The device automatically re-starts when the rotor
lock is removed. Over temperature shutdown provides
thermal protection for the device.
A Tachometer output is provided by open-drain Frequency
Generator (FG) Pin which allows external interface to monitor
motor rotation or speed. The FG output is the magnetic
O1 3
SOT89-5L
( Top View)
74 O2
change frequency.
The AH5798 is available in space saving SOT89-5L and
FG
Vss
1
2
5
Vdd
thinner TSOT25 packages.
O2
3
4
O1
Features
TSOT25
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Supports single-coil full-wave DC fan drivers
Built-in Hall sensor and input amplifier
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Operating Voltage: 1.8V to 5.5V
Soft switching for low noise DC fan motor applications
Applications
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?
?
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Rotor Lock Protection (Lock detection, output shutdown
and automatic re-start)
Thermal protection
Tachometer (FG) output
No external timing capacitor - Reduces the numbers of
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?
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3.3V / 5V Min. BLDC Cooling Fans
Netbook/ Notebook BLDC fans
Low Voltage/ Low Power BLDC Motors
external components required
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Low profile packages: SOT89-5L and TSOT25
“Green” Molding Compound
AH5798
Document number: DS32001 Rev. 2 - 2
1 of 11
June 2010
? Diodes Incorporated
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