AH266
Document number: DS30876 Rev. 5 - 2
1 of 7
www.diodes.com
December 2013
?Diodes Incorporated
H266
HIGH VOLTAGE HALL EFFECT LATCH
Description
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, a Schmitt
trigger to provide switching hysteresis for noise rejection, and
complementary Darlington open-collector drivers for sinking large
current loads. An internal band-gap regulator is used to provide
temperature compensated supply voltage for internal circuits and
allows a wide operating supply range.
If a magnetic flux density (B) is larger than operation point (Bop), DO
will turn on (low) and DOB will turn off (high). The output state is
latched prior to reaching release point (Brp). If B< Brp, DO will turn off
and DOB will turn on. AH266 is rated for operation over temperature
range from -20癈 to +85癈
and voltage range from 4V to 28V. The
devices are available in low cost die forms or rugged 4 pin SIP
packages.
Features
?
On-Chip Hall Plate
?
Operating Voltage: 4V to 28V
?
Output Current: 400mA (Continuous, +25癈)
?
Reverse Protection Diode Only for Chip Reverse Power
Connecting (Note 1)
?
Output Protection Zener Breakdown V
Z
= 62V (Typ.)
?
Lead Free package: SIP-4
? SIP-4: Available in Green Molding Compound (No Br, Sb)
?
RoHS Compliant (Note 2)
?
Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
?
Halogen and Antimony Free. Green Device (Note 3)
Pin Assignments
Applications
? Dual-Coil Brushless DC Motor
? Dual-Coil Brushless DC Fan
? Revolution Counting
? Speed Measurement
Notes:
1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporateds definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Typical Applications Circuit
1 2
4
3
266
Coil 1
Coil 2
V
cc
Brush-Less DC Fan
266
1 2
4
3
( Top View )
SIP-4
?/DIV>
Green
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相关代理商/技术参数
AH266K-PL-B-B
功能描述:板机接口霍耳效应/磁性传感器 4-28V 400mA RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23
AH266PL
功能描述:工业霍耳效应/磁性传感器 Complement Dual-Coil RoHS:否 制造商:Honeywell 操作类型: 操作高斯: 工作电源电压: 电流额定值: 封装 / 箱体: 输出下降时间: 工作点最小值/最大值: 安装风格: 最大工作温度: 最小工作温度: 最大输出电流: 封装:
AH266SK
功能描述:工业霍耳效应/磁性传感器 COMPL DUAL-COIL RoHS:否 制造商:Honeywell 操作类型: 操作高斯: 工作电源电压: 电流额定值: 封装 / 箱体: 输出下降时间: 工作点最小值/最大值: 安装风格: 最大工作温度: 最小工作温度: 最大输出电流: 封装:
AH266Z4-AE1
制造商:BCDSEMI 制造商全称:BCD Semiconductor Manufacturing Limited 功能描述:HIGH VOLTAGE HALL EFFECT LATCH
AH266Z4-AG1
制造商:Diodes Incorporated 功能描述:HALL AIO LATCH TO94 BULK 10K - Bulk 制造商:Diodes Incorporated 功能描述:IC HALL EFFECT LATCH HV TO-94
AH266Z4-BE1
制造商:BCDSEMI 制造商全称:BCD Semiconductor Manufacturing Limited 功能描述:HIGH VOLTAGE HALL EFFECT LATCH
AH266Z4-BG1
制造商:Diodes Incorporated 功能描述:HALL AIO LATCH TO94 BULK 10K - Bulk 制造商:Diodes Incorporated 功能描述:IC HALL EFFECT LATCH HV TO-94
AH266Z4-E1
制造商:BCDSEMI 制造商全称:BCD Semiconductor Manufacturing Limited 功能描述:HIGH VOLTAGE HALL EFFECT LATCH