SI8513-C-IS Datasheet, PDF(1/37 Page) List of Unclassifed Manufacturers

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SI8513-C-IS Datasheet, PDF (1/37 Pages) List of Unclassifed Manufacturers – Si85XX UNIDIRECTIONAL AC CURRENT SENSORS

Si85xx

Si85XX UNIDIRECTIONAL AC CURRENT SENSORS

Features

ï® Single-chip ac current sensor

ï® Low loss: <1.3 mï primary series

resistance and <2 nH inductance

ï® Leading-edge noise suppression

eliminates need for leading-edge

blanking

ï® "Ping-Pong" output version allows

one Si85xx to replace two current

transformers in full-bridge designs

ï® 5, 10, and 20 A full-scale versions

ï® Â±5% initial accuracy

ï® 50 kHz to 1 MHz input frequency

range

ï® FAULT output to safeguard operation

ï® Large 2 VPP min output at full scale

ï® High-side or low-side current sensing

ï® Compact 4x4x1 mm QFN package

(1 kVRMS isolation)

ï® 20-pin wide-body SOIC

(5 kVRMS isolation)

ï® â40 to 125 Â°C operating range

ï® UL/VDE/CSA approval

Applications

ï® Power supplies

ï® Motor controls

ï® Lighting equipment

ï® Industrial equipment

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 mï of series resistance and less than

2 nH series inductance in the sensing path at 25 Â°C. Current-sensing terminals are

isolated from the other package pins, providing up to 5 kVRMS isolation level per

safety approval ratings.

Safety Approval (20-Pin SOIC Only)

ï® UL 1577 recognized

ï¬ï 5000 VRMS for 1 minute

ï® CSA component notice 5A approval

ï¬ï IEC 60950, 61010, 60601

approved

ï® VDE certification conformity

ï¬ï IEC 60747-5-2 (VDE0884 Part 2)

Functional Block Diagram

Ordering Information:

See page 26.

Pin Assignments:

See page 24

VDD

MODE

OUT1

OUT2

TRST/FAULT

GND

20-Pin SOIC

Si851x

IIN

IOUT

12-Pin QFN

IIN

R1 R2 R3 R4

Si851x

RESET LOGIC

MODE LOGIC

MODE

INTEGRATOR

SIGNAL CONDITIONING

OUT1

OUT2

TEMP

SENSOR

ADC

AUTO CALIBRATION

LOGIC

IOUT

GND

VDD

TRST/FAULT

VDD

VIN

VDD1 TRST

IIN

GND1 Si850x

OUT

IOUT GND2

PH1

PH2

VOUT

Typical Application

OUT1

OUT2

IIN

Si851x

IOUT

Patents pending

Preliminary Rev. 0.4 6/12

Si85xx

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

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