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参数资料
| 型号： | A1103EUA-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 7/13页 |
| 文件大小： | 748K |
| 描述： | IC SWITCH HALL EFFECT 3-SIP |
| 标准包装： | 500 |
| 传感范围： | 355G 跳闸，150G 释放 |
| 类型： | 单极开关 |
| 电源电压： | 3.8 V ~ 24 V |
| 电流 - 电源： | 7.5mA |
| 电流 - 输出（最大）： | 25mA |
| 输出类型： | 数字，开路集电极 |
| 特点： | 稳压电压 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 3-SIP |
| 供应商设备封装： | 3-SIP |
| 包装： | 散装 |
Continuous-Time Switch Family
A1101, A1102, A1103,
A1104, and A1106
7
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Functional Description
OPERATION
The output of these devices switches low (turns on) when a
magnetic field (south polarity) perpendicular to the Hall ele-
ment exceeds the operate point threshold, B
OP
. After turn-on,
the output is capable of sinking 25 mA and the output voltage is
V
OUT(SAT)
. When the magnetic field is reduced below the release
point, B
RP
, the device output goes high (turns off). The differ-
ence in the magnetic operate and release points is the hysteresis,
B
hys
, of the device. This built-in hysteresis allows clean switch-
ing of the output, even in the presence of external mechanical
vibration and electrical noise.
Powering-on the device in the hysteresis region, less than B
OP
and
higher than B
RP
, allows an indeterminate output state. The correct
state is attained after the first excursion beyond B
OP
or B
RP
.
CONTINUOUS-TIME BENEFITS
Continuous-time devices, such as the A110x family, offer the
fastest available power-on settling time and frequency response.
Due to offsets generated during the IC packaging process,
continuous-time devices typically require programming after
packaging to tighten magnetic parameter distributions. In con-
trast, chopper-stabilized switches employ an offset cancellation
technique on the chip that eliminates these offsets without the
need for after-packaging programming. The tradeoff is a longer
settling time and reduced frequency response as a result of the
chopper-stabilization offset cancellation algorithm.
The choice between continuous-time and chopper-stabilized
designs is solely determined by the application. Battery manage-
ment is an example where continuous-time is often required. In
these applications, V
CC
is chopped with a very small duty cycle
in order to conserve power (refer to figure 2). The duty cycle
is controlled by the power-on time, t
PO
, of the device. Because
continuous-time devices have the shorter power-on time, they
are the clear choice for such applications.
For more information on the chopper stabilization technique,
refer to Technical Paper STP 97-10, Monolithic Magnetic Hall
Sensing Using Dynamic Quadrature Offset Cancellation and
Technical Paper STP 99-1, Chopper-Stabilized Amplifiers with a
Track-and-Hold Signal Demodulator.
Figure 1. Switching Behavior of Unipolar Switches. On the horizontal axis, the B+ direction indicates increasing south polarity magnetic field
strength, and the B direction indicates decreasing south polarity field strength (including the case of increasing north polarity). This behavior can
be exhibited when using a circuit such as that shown in Panel B.
B
HYS
V
CC
V
OUT(SAT)
B+
B
V+
0
0
(A)
(B)
VCC
V
S
Output
GND
VOUT
R
L
A110x
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A1103KSOT | 制造商:SECELECTRONICS 制造商全称:SECELECTRONICS 功能描述:Unipolar Hall-Effect Digital Switch |
| A1103KUA | 制造商:SECELECTRONICS 制造商全称:SECELECTRONICS 功能描述:Unipolar Hall-Effect Digital Switch |
| A1103LLHLT-T | 功能描述:IC SWITCH HALL EFFECT SOT23W 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 |
| A1103LLHLX-T | 功能描述:IC HALL EFFECT SWITCH SOT23W 制造商:allegro microsystems, llc 系列:- 包装:带卷（TR） 零件状态:有效 功能:单极开关 技术:霍尔效应 极化:南极 感应范围:35.5mT 跳闸，15mT 释放 测试条件:-40°C ~ 150°C 电压 - 电源:3.8 V ~ 24 V 电流 - 电源（最大值）:7.5mA 电流 - 输出（最大值）:25mA 输出类型:开路漏极 特性:- 工作温度:-40°C ~ 150°C（TA） 封装/外壳:SOT-23W 供应商器件封装:SOT-23W 标准包装:10,000 |
| A1103LSOT | 制造商:SECELECTRONICS 制造商全称:SECELECTRONICS 功能描述:Unipolar Hall-Effect Digital Switch |
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