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| 型号： | A1186LLHLT |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 9/15页 |
| 文件大小： | 509K |
| 描述： | IC SWITCH HALL EFFECT UNI SOT-23 |
| 产品培训模块： | Current Sensor |
| 标准包装： | 3,000 |
| 传感范围： | 10G ~ 60G 跳闸 - 可编程，固定释放 |
| 类型： | 单极开关 |
| 电源电压： | 3.5 V ~ 24 V |
| 电流 - 电源： | 6.9mA |
| 输出类型： | 数字，开路集电极 |
| 特点： | 可编程 |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | SOT-23W |
| 供应商设备封装： | SOT-23W |
| 包装： | 带卷 (TR) |
Ultrasensitive Two-Wire Field-Programmable
Chopper-Stabilized Unipolar Hall Effect Switches
A1185 and
A1186
8
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Application Information
For additional general application information, visit the Allegro
Web site at www. allegromicro.com.
GND
A118x
VCC
V+
0.01 uF
A
B
B
GND
ECU
Package UA Only
A
B
Maximum separation 5 mm
R
SENSE
C
BYP
Figure 3. Typical application circuit
Typical Application and Programming Circuit
The A118x family of devices MUST be protected by an exter-
nal bypass capacitor, C
BYP
, connected between the supply pin,
VCC, and the ground pin, GND, of the device. C
BYP
reduces
both external noise and the noise generated by the chopper-sta-
bilization function. As shown in figure 3, a 0.01 糉 capacitor
is typical. (For programming the device, a 0.1 糉 capacitor is
recommended for proper fuse blowing.)
Installation of C
BYP
must ensure that the traces that connect
it to the A118x pins are no greater than 5 mm in length. (For
programming the device, the capacitor may be further away from
the device, including mounting on the board used for program-
ming the device.)
C
BYP
serves only to protect the A118x internal circuitry. All
high-frequency interferences conducted along the supply lines
are passed directly to the load through C
BYP
. As a result, the
load ECU (electronic control unit) must have sufficient protec-
tion, other than C
BYP
, installed in parallel with the A118x.
A series resistor on the supply side, R
S
(not shown), in combina-
tion with C
BYP
, creates a filter for EMI pulses.
When determining the minimum V
CC
requirement of the A118x
device, the voltage drops across R
S
and the ECU sense resistor,
R
SENSE
, must be taken into consideration. The typical value for
R
SENSE
is approximately 100 ? (All programming, including
code and lock-bit programming, should be done with direct
connections to VCC and GND, with the use of a 0.1uF bypass
capacitor. Programming across the series resistor or sense resis-
tor may not allow enough energy to properly blow the fuses
in the device, as required for proper programming. The result
would be incorrect switchpoints.
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| A1186LLHLT-T | 功能描述:IC SWITCH HALL EFFECT UNI SOT-23 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 |
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| A1186LUA-T | 功能描述:IC SWITCH HALL EFFECT UNI 3-SIP 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 |
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