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A1202 参数 Datasheet PDF下载

A1202图片预览
型号: A1202
PDF下载: 下载PDF文件 查看货源
内容描述: 连续时间双极开关系列 [Continuous-Time Bipolar Switch Family]
分类和应用: 开关
文件页数/大小: 13 页 / 339 K
品牌: ALLEGRO [ ALLEGRO MICROSYSTEMS ]
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A1201, A1202, A1203, and A1204
Continuous-Time Bipolar Switch Family
Features and Benefits
Continuous-time operation
Fast power-on time
Low noise
Stable operation over full operating temperature range
Reverse battery protection
Solid-state reliability
Factory-programmed at end-of-line for optimum
performance
Robust EMC performance
High ESD rating
Regulator stability without a bypass capacitor
Description
The Allegro
®
A1201, A1202, A1203, and A1204 Hall-effect
bipolar switches are next-generation replacements and
extension of the popular Allegro A3134, A3133, and A3132
bipolar switch product line. Overall, the A120x family, produced
with BiCMOS technology, consists of continuous-time devices
that feature fast power-on time and low-noise operation. Device
programming is performed after packaging, to ensure increased
switchpoint accuracy by eliminating offsets that can be induced
by package stress. Unique Hall element geometries and low-
offset amplifiers help to minimize noise and to reduce the
residual offset voltage normally caused by device overmolding,
temperature excursions, and thermal stress.
The A120x Hall-effect bipolar switches include the following on
a single silicon chip: voltage regulator, Hall-voltage generator,
small-signal amplifier, Schmitt trigger, and NMOS output
transistor. The integrated voltage regulator permits operation
from 3.8 to 24 V. The extensive on-board protection circuitry
makes possible a ±30 V absolute maximum voltage rating for
superior protection in automotive and motor commutation
Packages: 3 pin SOT23W (suffix LH), and
3 pin SIP (suffix UA)
Continued on the next page…
Not to scale
Functional Block Diagram
VCC
Regulator
To all subcircuits
VOUT
Amp
Gain
Offset
Trim
Control
GND
A1201-DS, Rev. 5