HCPL-7800-500 datasheet, PDF - EEWORLD Datasheet

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HCPL-7800-500: DescriptionISOLATION AMPLIFIER, 3750V ISOLATION-MIN, 100kHz BAND WIDTH, PDSO8, SMT-8; CategoryAnalog mixed-signal IC Amplifier circuit; File Size304KB，18 Pages; ManufacturerAVAGO; Websitehttp://www.avagotech.com/

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HCPL-7800-500 Overview

ISOLATION AMPLIFIER, 3750V ISOLATION-MIN, 100kHz BAND WIDTH, PDSO8, SMT-8

HCPL-7800-500 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	AVAGO
Parts packaging code	SOIC
package instruction	SOP,
Contacts	8
Reach Compliance Code	compliant
Is Samacsys	N
Amplifier type	ISOLATION AMPLIFIER
Nominal bandwidth (3dB)	100 MHz
Maximum common mode voltage	2.8 V
Minimum insulation voltage	3750 V
JESD-30 code	R-PDSO-G8
length	9.8 mm
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	245
Certification status	Not Qualified
Maximum seat height	4.455 mm
Supply voltage upper limit	5.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal form	GULL WING
Terminal pitch	2.54 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
Maximum voltage gain	8.24
Minimum voltage gain	7.76
width	6.35 mm
Base Number Matches	1

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HCPL-7800A/HCPL-7800

Isolation Amplifer

Datasheet

Lead (Pb) Free

RoHS 6 fully

compliant

RoHS 6 fully compliant options available;

-xxxE denotes a lead-free product

Description

The HCPL-7800(A) isolation amplifier family was designed

for current sensing in electronic motor drives. In a typical

implementation, motor currents flow through an external

resistor and the resulting analog voltage drop is sensed

by the HCPL-7800(A). A differential output voltage is

created on the other side of the HCPL-7800(A) optical

isolation barrier. This differential output voltage is pro-

portional to the motor current and can be converted to

a single-ended signal by using an op-amp as shown in

the recommended application circuit. Since common-

mode voltage swings of several hundred volts in tens of

nanoseconds are common in modern switching inverter

motor drives, the HCPL-7800(A) was designed to ignore

very high common-mode transient slew rates (of at least

10 kV/µs).

The high CMR capability of the HCPL-7800(A) isolation

amplifier provides the precision and stability needed to

accurately monitor motor current in high noise motor

control environ-ments, providing for smoother control

(less “torque ripple”) in various types of motor control

applications.

The product can also be used for general analog signal

isolation applications requiring high accuracy, stability,

and linearity under similarly severe noise con-ditions.

For general applications, we recommend the HCPL-7800

(gain tolerance of ±3%). For precision applications Avago

Technologies offers the HCPL-7800A with part-to-part

gain tolerance of ±1%. The HCPL-7800(A) utilizes sigma

delta (Σ−∆) analog-to-digital converter technology,

chopper stabilized amplifiers, and a fully differential

circuit topology.

Together, these features deliver unequaled isolation-

mode noise rejection, as well as excellent offset and

gain accuracy and stability over time and temperature.

This performance is delivered in a compact, auto-insert-

able, industry standard 8-pin DIP package that meets

worldwide regulatory safety standards. (A gull-wing

surface mount option #300 is also available).

Features

15 kV/µs Common-Mode Rejection at V

= 1000 V

Compact, Auto-Insertable Standard 8-pin DIP Package

0.00025 V/V/°C Gain Drift vs. Temperature

0.3 mV Input Offset Voltage

100 kHz Bandwidth

0.004% Nonlinearity

Worldwide Safety Approval: UL 1577 (3750 Vrms/1 min.)

and CSA, IEC/EN/DIN EN 60747-5-2

• Advanced Sigma-Delta (Σ−∆) A/D Converter Technol-

ogy

• Fully Differential Circuit Topology

•

Applications

•

Motor Phase and Rail Current Sensing

Inverter Current Sensing

Switched Mode Power Supply Signal Isolation

General Purpose Current Sensing and Monitoring

General Purpose Analog Signal Isolation

Functional Diagram

DD1

IN+

IN-

DD1

DD2

OUT+

OUT-

GND2

GND1

SHIELD

NOTE: A 0.1 μF bypass capacitor must be connected

between pins 1 and 4 and between pins 5 and 8.

CAUTION:

It is advised that normal static precautions be taken in handling and assembly

of this component to prevent damage and /or degradation which may be induced by ESD.

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