参数资料
型号: A1202LUA-T
厂商: Allegro Microsystems Inc
文件页数: 10/14页
文件大小: 356K
描述: IC SW CONTINUOUS TIME BIPO 3-SIP
产品培训模块: Current Sensor
标准包装: 4,000
传感范围: 75G 跳闸,-75G 释放
类型: 双极卡锁
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: 数字式,开漏极
特点: 稳压电压
工作温度: -40°C ~ 150°C
封装/外壳: 3-SIP
供应商设备封装: 3-SIP
包装: 散装
其它名称: 620-1010
Continuous-Time Bipolar Switch Family
A1202
and A1203
10
Allegro MicroSystems, LLC
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
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 4). 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.
ADDITIONAL APPLICATIONS INFORMATION
Extensive applications information for Hall-effect devices is
available in:
" Hall-Effect IC Applications Guide, Application Note 27701
" Hall-Effect Devices: Gluing, Potting, Encapsulating, Lead 
Welding and Lead Forming, Application Note 27703.1
" Soldering Methods for Allegros Products  SMT and Through-
Hole, Application Note 26009
All are provided in Allegro Electronic Data Book, AMS-702,
and the Allegro Web site, www.allegromicro.com.
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