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参数资料
| 型号： | A1244LUA-I1-T |
| 元件分类： | 磁阻传感器 |
| 英文描述： | MAGNETIC FIELD SENSOR-HALL EFFECT, -8-8mT, RECTANGULAR, THROUGH HOLE MOUNT |
| 封装： | 1.5 MM X 4 MM, 3 MM HEIGHT, LEAD FREE, SIP-3 |
| 文件页数： | 1/12页 |
| 文件大小： | 251K |
| 代理商： | A1244LUA-I1-T |
Description
The A1244 is a two-wire Hall-effect latch. The devices are
produced on theAllegro advanced BiCMOS wafer fabrication
process, which implements a patented high frequency, 4-phase,
chopper-stabilization technique. This technique achieves
magnetic stability over the full operating temperature range,
and eliminates offsets inherent in devices with a single Hall
element that are exposed to harsh application environments.
Two-wirelatchesareparticularlyadvantageousincost-sensitive
applications because they require one less wire for operation
versus the more traditional open-collector output switches.
Additionally, the system designer inherently gains diagnostics
because there is always output current flowing, which should
be in either of two narrow ranges. Any current level not within
these ranges indicates a fault condition.
The Hall-effect latch will be in the high output current state
in the presence of a magnetic south polarity field of sufficient
magnitude and will remain in this state until a sufficient north
polarity field is present.
The device is offered in two package styles. The LH is a
SOT-23W style, miniature low profile package for surface-
mount applications. The UA is a 3-pin ultra-mini single inline
package (SIP) for through-hole mounting. Both packages are
lead (Pb) free, with 100% matte tin leadframe plating.
A1244-DS
Features and Benefits
High speed, 4-phase chopper stabilization
Low switchpoint drift throughout temperature range
Low sensitivity to thermal and mechanical stresses
On-chip protection
Supply transient protection
Reverse battery protection
On-board voltage regulator
3.0 to 24 V operation
Solid-state reliability
Robust EMC and ESD performance
Industry leading ISO 7637-2 performance through use of
proprietary, 40-V clamping structures
Chopper-Stabilized, Two Wire Hall-Effect Latch
Functional Block Diagram
A1244
Amp
Regula
To all subcircuits
tor
Schmitt
Trigger
Polarity
Low-Pass
Filter
GND
VCC
GND
UA package only
0.01 μF
V+
Clock/Logic
Dyna
mic
O
ffse
t
Ca
nce
lla
tion
S
am
ple
and
H
old
Not to scale
Packages:
Approximate footprint
3-pin SOT23-W
2 mm × 3 mm × 1 mm
(suffix LH)
3-pin ultramini SIP
1.5 mm × 4 mm × 3 mm
(suffix UA)
Preliminary Datasheet Subject to Change Without Notice May 5, 2011
相关PDF资料 |
PDF描述 |
|---|---|
| A1321LUA | MAGNETIC FIELD SENSOR-HALL EFFECT, 10mT, 0.20-4.70V, RECTANGULAR, THROUGH HOLE MOUNT |
| A1322ELHLT | MAGNETIC FIELD SENSOR-HALL EFFECT, 10mT, 0.20-4.70V, RECTANGULAR, SURFACE MOUNT |
| A1321L | MAGNETIC FIELD SENSOR-HALL EFFECT, 0.2-4.7V, RECTANGULAR, SURFACE MOUNT |
| A1322L | MAGNETIC FIELD SENSOR-HALL EFFECT, 0.2-4.7V, RECTANGULAR, SURFACE MOUNT |
| A1321LUA-TL | MAGNETIC FIELD SENSOR-HALL EFFECT, 10mT, 0.20-4.70V, RECTANGULAR, THROUGH HOLE MOUNT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| A1244LUA-I2-T | 功能描述:IC HALL EFFECT LATCH SIP-3 RoHS:是 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
| A1245LLHLT-I1-T | 功能描述:IC HALL EFFECT LATCH SOT23-3 制造商:allegro microsystems, llc 系列:- 包装:带卷（TR） 零件状态:有效 功能:卡销 技术:霍尔效应 极化:南极 感应范围:4mT 跳闸，-4mT 释放 测试条件:-40°C ~ 150°C 电压 - 电源:3 V ~ 24 V 电流 - 电源（最大值）:6.9mA 电流 - 输出（最大值）:- 输出类型:开路漏极 特性:- 工作温度:-40°C ~ 150°C（TA） 封装/外壳:TO-236-3，SC-59，SOT-23-3 供应商器件封装:SOT-23-3 标准包装:3,000 |
| A1245LLHLT-I2-T | 功能描述:IC HALL EFFECT LATCH SOT23-3 制造商:allegro microsystems, llc 系列:- 包装:带卷（TR） 零件状态:有效 功能:卡销 技术:霍尔效应 极化:南极 感应范围:4mT 跳闸，-4mT 释放 测试条件:-40°C ~ 150°C 电压 - 电源:3 V ~ 24 V 电流 - 电源（最大值）:5mA 电流 - 输出（最大值）:- 输出类型:开路漏极 特性:- 工作温度:-40°C ~ 150°C（TA） 封装/外壳:TO-236-3，SC-59，SOT-23-3 供应商器件封装:SOT-23-3 标准包装:3,000 |
| A1245LLHLX-I1-T | 功能描述:IC HALL EFFECT LATCH SOT23-3 制造商:allegro microsystems, llc 系列:- 包装:带卷（TR） 零件状态:有效 功能:卡销 技术:霍尔效应 极化:南极 感应范围:4mT 跳闸，-4mT 释放 测试条件:-40°C ~ 150°C 电压 - 电源:3 V ~ 24 V 电流 - 电源（最大值）:6.9mA 电流 - 输出（最大值）:- 输出类型:开路漏极 特性:- 工作温度:-40°C ~ 150°C（TA） 封装/外壳:TO-236-3，SC-59，SOT-23-3 供应商器件封装:SOT-23-3 标准包装:10,000 |
| A1245LLHLX-I2-T | 功能描述:IC HALL EFFECT LATCH SOT23-3 制造商:allegro microsystems, llc 系列:- 包装:带卷（TR） 零件状态:有效 功能:卡销 技术:霍尔效应 极化:南极 感应范围:4mT 跳闸，-4mT 释放 测试条件:-40°C ~ 150°C 电压 - 电源:3 V ~ 24 V 电流 - 电源（最大值）:5mA 电流 - 输出（最大值）:- 输出类型:开路漏极 特性:- 工作温度:-40°C ~ 150°C（TA） 封装/外壳:TO-236-3，SC-59，SOT-23-3 供应商器件封装:SOT-23-3 标准包装:10,000 |
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