HCPL-7520

Input Offset Voltage :
Common Mode Rejection Ratio (Min) :
Bandwidth :
Operating Supply Voltage :
Supply Current :
Operating Temperature Range :
Packaging : Tube
Mounting Style : Through Hole
Package / Case : DIP-8


Features:

• 15 kV/s common-mode rejection at Vcm = 1000 V
• Compact, auto-insertable 8-pin DIP package
• 60 ppm/ gain drift vs.temperature
• 0.6 mV input offset voltage
• 8 V/ input offset voltage vs. temperature
• 100 kHz bandwidth
• 0.06% nonlinearity, single-ended amplifer oon
• Worldwide safety approval:UL 1577 (3750 Vrms/1 min.) and CSA (pending), DIN EN 60747-5-2 (Option #060 only pending)
• Advanced sigma-delta (-) A/D converter technology

Application

• Low-power inverter current sensing
• Motor phase and rail current sensing
• Switched mode power supply signal isolation
• General purpose low-power current sensing and monitoring
• General purpose analog signal isolation




Pinout






Specifications

• Simplifies system design and overall cost
• Allows for smaller design margin, system stability over wide temperature range
• Improve system performance and better data integrity
• Lower insertion cost, easier and faster handling
• Provide most accurate and timely current information

Description

The HCPL-7520 isolated linear current sensing IC is designed for current sensing in low-power electronic motor drives. In a typical implementation, motor current flows through an external resistor and the resulting analog voltage drop is sensed by the HCPL-7520. An output voltage is created on the other side of the HCPL-7520 optical isolation barrier. The single-ended output voltage is proportional to the motor current. Since common-mode votlage swings of several hundred volts in tens of nanoseconds are common in modern switching inverter motor drives, the HCPL-7520 was designed to ignore very high common-mode transient slew rates (of at least 10 kV/µs).

The high CMR capability of the HCPL-7520 isolation amplifier provides the precision and stability needed to accurately monitor motor current in high noise motor control environments, 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. For general applications, we recommend the HCPL-7520 (gain tolerance of±5%). The HCPL-7520 utilizes Sigma-Deltaanalog-to-digital converter technology to delivery offset and gain accuracy and stability over time and temperature. This performance is delivered in a compact, auto-insert, industry standard 8-pin DIP package that meets worldwide regulatory safety standards. (A gull-wing surface mount option #300 is also available). Evaluation board is available.Contact your Avago sales representative or authorized distributor for information.

Parameters:

Technical/Catalog Information	HCPL-7520
Vendor	Avago Technologies US Inc.
Category	Integrated Circuits (ICs)
Packaging	Tube
Amplifier Type	Isolation
Number of Circuits	1 - Single
Package / Case	8-DIP
Slew Rate	-
Gain Bandwidth Product	-
Current - Supply	11.7mA
Current - Output/Channel	16mA
Voltage - Supply, Single/Dual (±)	4.5 V ~ 5.5 V
Output Type	-
-3db Bandwidth	100kHz
Current - Input Bias	0.6A
Operating Temperature	-40°C ~ 85°C
Voltage - Input Offset	600V
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	HCPL 7520 HCPL7520