High Side Current Sense Amplifiers for Accurate and Energy-Efficient Current Measurement in Automotive Applications

Microchip's High Side Current Sense Amplifiers
Microchip's High Side Current Sense Amplifiers
Microchip's High Side Current Sense Amplifiers

Microchip Technology has introduced the MCP6C02 and MCP6C04, AEC-Q100 qualified high side current sense amplifiers that feature the industry’s lowest offset voltage. With a maximum offset error of only 12 µV, the new amplifiers are delivered in both a Grade 1 6-pin SOT-23 package and a Grade 0 8-pin 3x3 VDFN package and offer the lowest offset voltage for any Grade 0 high-side current sense amplifier.

 

The operating temperature range of -40°C to +150°C and the amplifier's offset error allows the use of small value shunt resistors at the same time maintains a high measurement resolution. This delivers more accurate and energy-efficient current measurement solutions for applications that require extreme temperatures like the motor within a vehicle’s water pump.

 

Both MCP6C02 and MCP6C04 amplifiers feature an on-chip electromagnetic interference (EMI) filter and zero-drift architecture.  The EMI filter acts as additional protection against high-frequency electrical interference, such as wireless hotspots and radio frequencies, while the self-correcting architecture brings increased accuracy to current measurement. These features allow the developers to create higher performance solutions in a wide variety of applications, such as creating a current-controlled feedback loop for a power supply or motor, monitoring and charging batteries, or monitoring current levels for safety reasons.

 

Microchip’s new ADM01104 evaluation board supports both the MCP6C02 and MCP6C04 high-side current sense amplifiers, and each device is a pin, package, and function compatible. The MCP6C02 6-pin SOT-23 package option is available for $1.22, while the MCP6C02 8-pin 3x3 VDFN package option is available for $1.41, each in 10,000-unit quantities. The MCP6C04 6-pin SOT-23 package is available for $0.98, also in 10,000-unit quantities.

 

Features of MCP6C02 High-Side Current Sense Amplifier

  • Zero-drift architecture
  • Bidirectional or unidirectional operation
  • Maximum offset less than 16 µV
  • Maximum offset drift less than 85 nV/°C
  • Specified input common-mode range: 3V to 65V
  • The bandwidth of 500 kHz (typical)
  • Enhanced EMI rejection
  • Specified from -40 to +125°C (SOT-23 Package)
  • Specified from -40 to +150°C (VDFN Package)
  • Small 6-pin SOT-23 and 8-pin 3x3 VDFN packaging

 

Features of MCP6C04 High-Side Current Sense Amplifier

  • Zero-drift architecture
  • Bidirectional or unidirectional operation
  • Maximum offset less than 30 µV
  • Maximum offset drift less than 180 nV/ºC
  • Specified input common-mode range: 3V to 52V
  • Fixed gain options: 20, 50, 100 V/V
  • The bandwidth of 500 kHz (typical)
  • Enhanced EMI rejection
  • Specified from -40 to +125ºC
  • Small 6-pin SOT-23 package

 

Note: More technical information can be found in the datasheets of the MCP6C02 amplifier linked at the bottom of this page and on the product pages of MCP6C02 High-Side Current Sense Amplifier and MCP6C04 High-Side Current Sense Amplifier.

Related Post


Leave a Reply

Please Login

Join 2,00,000+subscribers

We will never spam you.

Be a part of our ever growing community.

Copyright 2020 © Components101. All rights reserved