参数资料
型号: ACS712ELCTR-20A-T
厂商: Allegro Microsystems Inc
文件页数: 1/15页
文件大小: 0K
描述: SENSOR CURRENT 20A 5V BI 8-SOIC
特色产品: Allegro? ACS712 Current Sensor IC
标准包装: 1
电流 - 感应: ±20A
精确度: ±1.5%
灵敏度: 96 ~ 104 mV/A
电流 - 电源: 10mA
传感器类型: 霍尔效应
电源电压: 4.5 V ~ 5.5 V
输出: 2.5V
频率: 80kHz
响应时间: 5µs
电极标记: 双向
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 标准包装
产品目录页面: 1140 (CN2011-ZH PDF)
其它名称: 620-1190-6
ACS712
Fully Integrated, Hall Effect-Based Linear Current Sensor IC
with 2.1 kVRMS Isolation and a Low-Resistance Current Conductor
Features and Benefits
Description
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Low-noise analog signal path
Device bandwidth is set via the new FILTER pin
5 μ s output rise time in response to step input current
80 kHz bandwidth
Total output error 1.5% at T A = 25°C
Small footprint, low-profile SOIC8 package
1.2 m Ω internal conductor resistance
2.1 kVRMS minimum isolation voltage from pins 1-4 to pins 5-8
5.0 V, single supply operation
66 to 185 mV/A output sensitivity
Output voltage proportional to AC or DC currents
Factory-trimmed for accuracy
Extremely stable output offset voltage
Nearly zero magnetic hysteresis
Ratiometric output from supply voltage
TüV America
Certificate Number:
U8V 06 05 54214 010
The Allegro ? ACS712 provides economical and precise
solutions for AC or DC current sensing in industrial, commercial,
and communications systems. The device package allows for
easy implementation by the customer. Typical applications
include motor control, load detection and management, switch-
mode power supplies, and overcurrent fault protection. The
device is not intended for automotive applications.
The device consists of a precise, low-offset, linear Hall circuit
with a copper conduction path located near the surface of the
die. Applied current flowing through this copper conduction
path generates a magnetic field which the Hall IC converts into a
proportional voltage. Device accuracy is optimized through the
close proximity of the magnetic signal to the Hall transducer.
A precise, proportional voltage is provided by the low-offset,
chopper-stabilized BiCMOS Hall IC, which is programmed
for accuracy after packaging.
The output of the device has a positive slope (>V IOUT(Q) )
when an increasing current flows through the primary copper
conduction path (from pins 1 and 2, to pins 3 and 4), which is
Package: 8 Lead SOIC (suffix LC)
the path used for current sampling. The internal resistance of
this conductive path is 1.2 m Ω typical, providing low power
loss. The thickness of the copper conductor allows survival of
Continued on the next page…
Approximate Scale 1:1
Typical Application
+5 V
IP+
1
2
VCC
IP+ VIOUT
8
7
V OUT
C BYP
0.1 μF
I P
ACS712
3
4
IP– FILTER
IP–
GND
6
5
C F
1 nF
Application 1. The ACS712 outputs an analog signal, V OUT .
that varies linearly with the uni- or bi-directional AC or DC
primary sampled current, I P , within the range specified. C F
is recommended for noise management, with values that
depend on the application.
ACS712-DS, Rev. 15
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