Datasheet > SI850X

SI850X

更新时间： 2024-11-27 03:32:03

品牌	Logo	应用领域
芯科 - SILICON		传感器
页数	文件大小	规格书
24页	342K
描述
UNIDIRECTIONAL AC CURRENT SENSORS

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SI850X 数据手册

Si85xx

Si85XX UNIDIRECTIONAL AC CURRENT SENSORS

Features

Pin Assignments:

See page 20

Single-chip ac current

FAULT output helps safeguard

sensor/conditioner

operation

Low loss: Less than 1.3 mΩ

primary series resistance;

less than 2 nH primary

inductance at 25 ºC

1,000 VDC isolation

Accurate to ±5% of measurement

12-Pin QFN

Large 2 V output pins signal at

full scale

Leading-edge noise suppression

eliminates need for leading-edge

blanking

High-side or low-side current

sensing

IIN

GND2

GND3

–40 to 125 ºC operating range

"Ping-Pong" output version

allows one Si85xx to replace two

current transformers in full-bridge

applications

(Si85x4/5/6)

Si850x

Small 4 x 4 x 1 mm package

Low cost

OUT

IOUT

5, 10, and 20 A full-scale versions

Applications

Power supplies

Motor controls

Lighting equipment

Industrial equipment

IIN

Description

The Si85xx products are unidirectional ac current sensors available in full-

scale ranges of 5, 10, and 20 A. Si85xx products are ideal upgrades for

older current-sensing technologies offering size, performance and cost

advantages over current transformers, Hall effect devices, DCR circuits

and other approaches. The Si85xx are extremely low loss, adding less

than 1.3 mΩ of series resistance and less than 2 nH series inductance in

the sensing path at 25 ºC. Current-sensing terminals are isolated from the

other package pins to a maximum voltage of 1,000 VDC.

Si851x

OUT1

IOUT

OUT2

Functional Block Diagram

Patents pending

IIN

VDD

Si851x

VIN

IIN

MODE

VDD1 TRST

RESET LOGIC

MODE LOGIC

Si850x

GND1

OUT

GND2

OUT1

OUT2

INTEGRATOR

SIGNAL CONDITIONING

IOUT

PH1

VOUT

PH2

AUTO CALIBRATION

LOGIC

TEMP

SENSOR

ADC

Typical Application

IOUT

GND

TRST/FAULT

VDD

Preliminary Rev. 0.1 7/07

Si85xx

This information applies to a product under development. Its characteristics and specifications are subject to change without notice.

Silicon Laboratories Confidential. Information contained herein is covered under non-disclosure agreement (NDA).

12 3 4 5 6 7...24

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