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AH284U-YLA PDF预览

AH284U-YLA

更新时间: 2024-11-15 03:10:55
品牌 Logo 应用领域
易亨 - ANACHIP 风扇电机控制器
页数 文件大小 规格书
6页 183K
描述
Hall-Effect Smart Fan Motor Controller

AH284U-YLA 数据手册

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AH266  
High Voltage Hall Effect Latch  
„ Features  
„ General Description  
- On-chip Hall plate  
AH266 is an integrated Hall sensor with output  
drivers designed for electronic commutation of  
brush-less DC motor applications. The device  
includes an on-chip Hall voltage generator for  
magnetic sensing, a comparator that amplifies the  
Hall voltage, and a Schmitt trigger to provide  
switching hysteresis for noise rejection, and  
complementary darlington open-collector drivers for  
sinking large current loads. An internal bandgap  
regulator is used to provide temperature  
compensated supply voltage for internal circuits and  
allows a wide operating supply range.  
- Operating voltage: 4V~28V  
- Output current: 400mA(Continuous, 25oC)  
- Reverse protection diode only for chip reverse  
(Note)  
power connecting  
- Output protection Zener breakdown Vz=62V(Typ)  
- Package: SIP-4L  
(Note)  
Protection diode only exists at power pin(1,4) output, not  
including pin (2,3).  
If a magnetic flux density (B) is larger than operate  
point (Bop), DO turn on (low) and DOB turn off  
(high). The outputs state is latched prior to reach  
release point (Brp). if B< Brp, DO turn off and DOB  
turn on. AH266 is rated for operation over  
temperature range from -20oC to 85 oC and voltage  
range from 4V to 28V. The devices are available in  
low cost die forms or rugged 4 pin SIP packages.  
„ Application  
- Dual-coil Brush-less DC Motor  
- Dual-coil Brush-less DC Fan  
- Revolution Counting  
- Speed Measurement  
„ Pin Assignment  
„ Pin Configuration  
4. GND  
3. DOB  
2. DO  
Name  
Description  
VCC  
DO  
Positive Power Supply  
Output Pin  
1. VCC  
DOB  
GND  
Output Pin  
Ground  
„ Ordering Information  
AH266 X - X X X - X  
Magnetic  
Packing  
Blank : Tube  
Wafer Body  
Package  
P: SIP-4L  
Lead  
Characteristics  
Blank or  
L : Lead Free  
Blank: Normal  
A or B  
A~Z : if necessary  
to specify  
A
: Taping  
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of  
this product. No rights under any patent accompany the sale of the product.  
Rev. 0.2 Jan 19, 2005  
1/6  

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