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HCPL-7851, HCPL7860, HCPL-7860

Table of contents:
Info of HCPL-7851
Info of HCPL7860
Info of HCPL-7860

HCPL-7851, HCPL7860, HCPL-7860 Selling Leads, Datasheet

MFG:Avago Technologies US Inc. Category:Isolators Package Cooled:SOP8 D/C:2008

HCPL-7851, HCPL7860, HCPL-7860 Datasheet download

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Part Number: HCPL-7851

Category: Isolators

MFG: Avago Technologies US Inc.

Package Cooled: SOP8

D/C: 2008

Description: OPTOCOUPLER MOD SIGM-DELTA 8-DIP

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HCPL-7851 General Description

The HCPL-7851 is a high reliability Class H isolation amplifier that provides accurate, electrically isolated and amplified representations of voltage and current. When used with a shunt resistor to monitor the motor phase current in a high speed motor drive, the device will offer superior reliability compared with the traditional solutions such as current transformers and Hall-effect sensors. This device consists of a sigma-delta analog-to-digital converter optically coupled to a digital-to-analog converter in a hermetically sealed 8-Pin ceramic DIP package with gold plated leads. Solder dipped leads and various lead forms options are also available. See the datasheet for details.
The products are capable of operation and storage over the full military temperature range and may be purchased as either commercial product or from the DSCC SMD 5962-97557. The HCPL-7851 is manufactured and tested on a MIL-PRF-38534 certified line and included in the DSCC Qualified Manufactures List, QML-38534 for Hybrid Microcircuits.
Superior performance in design critical specifications such as common-mode rejection, offset voltage, nonlinearity, and operating temperature make this product an excellent choice for designing reliable products such as motor controllers and inverters.
Common-mode rejection of 8 kV/micro-second makes the HCPL-7850/7851 suitable for noisy electrical environments such as those generated by the high switching rates of power IGBTs.
Low offset voltage together with a low offset voltage temperature coefficient permits accurate use of auto-calibration techniques.
Gain tolerance of 5% with 0.1% nonlinearity further provide the performance necessary for accurate feedback and control.

HCPL-7851 Features

• Performance Guaranteed over Full Military Temperature Range: 55°C to +125°C
• Manufactured and Tested on a MIL-PRF-38534 Certified Line
• Hermetically Sealed Packages
• Dual Marked with Device Part Number and DSCC Drawing Number
• QML-38534, Class H
• HCPL-7840 Function Compatibility
• High Common Mode Rejection (CMR): 8 kV/ms at VCM = 1000 V
• 5% Gain Tolerance
• 0.1% Nonlinearity
• Low Offset Voltage and Offset Temperature Coefficient
• 100 kHz Bandwidth

HCPL-7851 Typical Application

• Industrial and Military
• High Reliability Systems
• Harsh Industrial Environments
• Transportation, Medical, and Life Critical Systems
• General Purpose Analog Signal Isolation
• Motor Phase and Rail Current Sensing
• Inverter Current Sensing
• Switched Mode Power Supply Signal Isolation
• General Purpose Current Sensing and Monitoring

HCPL-7851 Connection Diagram

HCPL-7860 Parameters

Technical/Catalog Information	HCPL-7860
Vendor	Avago Technologies US Inc.
Category	Isolators
Type	Sigma-Delta Modulator
Mounting Type	Through Hole
Package / Case	8-DIP
Packaging	Tube
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	HCPL 7860 HCPL7860

HCPL-7860 General Description

The HCPL-7860/HCPL-786J Optically Isolated Modulator and HCPL-0872 Digital Interface IC or digital filter together form an isolated programmable two-chip analog-to-digital converter. The isolated modulator allows direct measurement of motor phase currents in power inverters.

In operation, the HCPL-7860/HCPL-786J Isolated Modulator (optocoupler with 3750 VRMS dielectric withstand voltage rating) converts a lowbandwidth analog input into a high-speed one-bit data stream by means of a Sigma-Delta (Σ−?) over-sampling modulator.

This modulation provides for high noise margins and excellent immunity against isolation-mode transients. The modulator data and on-chip sampling clock are encoded and transmitted across the isolation boundary where they are recovered and decoded into separate high-speed clock and data channels.

HCPL-7860 Features

• 12-bit Linearity
• 700 ns Conversion Time (Pre-Trigger Mode 2)
• 5 Conversion Modes for Resolution/Speed Trade-Off; 12-bit Effective Resolution with 18 ms Signal Delay (14-bit with 94 ms)
• Fast 3 ms Over-Range Detection
• Serial I/O (SPI®, QSPI® and Microwire® Compatible)
• ± 200 mV Input Range with Single 5 V Supply
• 1% Internal Reference
• Offset Calibration
• -40°C to +85°C Operating Temperature Range
• 15 kV/ms Isolation Transient Immunity
• Regulatory Approvals; UL, CSA, VDE

HCPL-7860 Connection Diagram

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