Optoisolation Products - Avago Technologies - (Version JPG) - Page n° 29 - PDF Catalogue | Technical Documentation

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Signal mixer, Tri-color LED, Diode, Receiver, Multiplexer

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Miniature Analog Isolation Amplifier

Description

The HCPL-788J can be used for isolating the motor current sensing element from the control circuit while at the same time transmitting precision analog signals overcurrent fault signals. This circuit requires a high precision-sensing resistor for monitoring the motor current. The single-ended output allows it to directly interface with the A/D port of the micro-controller. Other beneits include an in-built fault detection, high CMR and a package that is small in size compared to Hall effect devices.

Low Cost Three Phase Current Sensing with

Short Circuit and Overload Detection Block Diagram

Benefits

+5v

isolation boundary

• Patented Optical Isolation Amplifier With Sigma-Delta Modulation

• Compact package suitable for high volume production process

• Cost-effective solution

• Reinforced insulation

Applications

• Motor phaseand rail current sensing

• Data acquisition systems

• Invertercurrentsensing

• General purposecurrent sensing and monitoring

Miniature Analog Isolation Amplifier Product Selection

Package

Gain

Tolerance % Max.

Non-Linearity % Max.

Prop Delay us Max.

CMR - V/us@VcM

Output Viso V_m

Configuration V_RMS V Min. pe

CMR Vcm

V/us (Min.) V


ACPL-796J-000E^A ^	SO16	12-Bit Isolated Sigma-Delta Modulator (external clock)			15000	1000	Digital		3750	891
ACPL-7873-000E" ^	300 mil DIP8	12-Bit Isolated Sigma-Delta Modulator (-40to+105°C)			15000	1000	Digital		3750	891
HCPL-7860	300 mil DIP8	12-Bit Isolated Sigma-Delta Modulator			15000	1000	Digital		3750	891
HCPL-7560	300 mil DIP8	8-Bit Isolated Sigma-Delta Modulator			15000	1000	Digital		3750	891*
HCPL-786J	SO16	12-Bit Isolated Sigma-Delta Modulatorwith 8.3 mm clearance and creepage			15000	1000	Digital		3750	891
HCPL-0872	SO16	Digital Interface IC for A/D Converter
ACPL-782T-000E" *«»	300 mil DIP8	2(-40to125°q	0.2	9.9	10000	1000	Differential		3750	891
HCPL-7800A	300 mil DIP8	1	0.2	9.9	10000	1000	Differential		3750	891
HCPL-7800	300 mil DIP8	3	0.2	9.9	10000	1000	Differential		3750	891
HCPL-7840	300 mil DIP8	5	0.2	9.9	10000	1000	Differential		3750	891*
HCPL-788J	SO16	5(-40to85°C)	0.4	20	10000	1000	Single-ended		3750	891
• Smart Current Sensor with integrated fast short circuit detection (3us) • Analog Output direct compatible with A/D converters • luVrCoffsetchangevstemperature								• 16kHzbandwidth • Absolute value signal • Fault detection
HCPL-7510	300 mil DIP8	3	0.4	9.9	10000	1000	Single-ended		3750	891*
HCPL-7520	300 mil DIP8	5	0.4	9.9	10000	1000	Single-ended		3750	891*

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Tlv_m

TICLKN TI NC TI DATOUT T TEST

T1GND2

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Notes: * - with IEC/EN/DIN EN 60747-5-2 Option 060, a - Advanced Information, may subject to changes.

Optoisolation Products - Avago Technologies - #29

Signal mixer, Tri-color LED, Diode, Receiver, Multiplexer