Power Electronics / Power Management


High-side current sense amplifier with adjustable gain

27 October 2021 Power Electronics / Power Management

The MPQ8112A is a low-cost, unipolar, high-side current sense amplifier that operates from a 2,7 V to 60 V supply and typically consumes a 300 μA current. The Monolithic Power Systems part is ideal for automotive systems, industrial supplies and systems where battery monitoring and DC current monitoring are critical.

High-side current monitoring is ideal in battery-powered systems as it does not interfere with the ground path of the battery charger. The common mode input ranges between 0 V and 60 V with a wide 700 kHz bandwidth, making the device suitable for inside control loops and short circuit protection (SCP) loops.

The MPQ8112A converts a differential input voltage (VIN) to a current output, which is converted back to a voltage via an external load resistor. The device has an adjustable gain that is determined by the external common input resistors and the load resistor.

The MPQ8112A is available in a TSOT23-6L package.

For more information contact NuVision Electronics, +27 11 608 0144, gdeklerk@nuvisionelec.co.za, www.nuvisionelec.com


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Wide-input DC/DC converters in 1/32nd bricks
Brabek Power Electronics / Power Management
RECOM now offers through-hole, 1/32nd brick-footprint, non-isolated DC/DC converters – the RPMA-4.5 and RPMA-8.0 – with 4,5 A and 8 A output ratings respectively. Each part has a wide 9-53 V input and ...

Read more...
Auto-ranging benchtop and rackmount power supplies
Vepac Electronics Power Electronics / Power Management
The programmable DC power supply family from Elektro-Automatik (EA) ranges in power from 80 W benchtop devices up to 30 kW in a single chassis. High power density units can be easily paralleled for up ...

Read more...
Step-down converter with nano quiescent current
Altron Arrow Power Electronics / Power Management
The ST1PS03 is a nano-quiescent miniaturised synchronous step-down converter which is able to provide up to 400 mA output current with an input voltage ranging from 1,8 V to 5,5 V. This STMicroelectronics ...

Read more...
Convection cooled 150 W and 300 W power supplies
Vepac Electronics Power Electronics / Power Management
Cosel announced the addition of 150 W and 300 W free air convection cooled power supplies, the LHP150F and the LHP300F. Designed for industrial applications requiring high levels of safety, they are certified ...

Read more...
Power supplies for embedded applications from 15 to 320 W
Vepac Electronics Power Electronics / Power Management
XP Power’s LCW series of regulated-output, encased AC-DC power supplies is ideal for embedded industrial electronics, technology and equipment requiring household approvals. The nine new series (LCW15, ...

Read more...
Microchip further expands GaN RF power offering
EBV Electrolink Power Electronics / Power Management
A significant expansion has been made to Microchip Technology’s gallium nitride (GaN) RF power device portfolio with new MMICs and discrete transistors that cover frequencies up to 20 GHz. The devices ...

Read more...
Buck/boost converter with ultra-low IQ and supercapacitor charging
Power Electronics / Power Management
A new bidirectional buck/boost converter with an ultra-low quiescent current (IQ) of 60 nA has been introduced by Texas Instruments. The TPS61094 integrates a buck mode for supercapacitor charging and ...

Read more...
Motor/PFC controller with gate driver and voltage regulator
EBV Electrolink Power Electronics / Power Management
Infineon Technologies’ iMOTION IMD110-6 is a series of highly integrated ICs for the control of three-phase motors. The devices integrate the motor controller with a high-voltage, three-phase gate driver ...

Read more...
Open-frame 80 W DC/DC converter
Vepac Electronics Power Electronics / Power Management
A new 80 W DC/DC converter has been added to Cosel’s value-added STMGF platform. Available in two versions, the STMGFS80 covers all industrial voltages from 9 V to 76 V. Using Cosel’s efficient MGFS80 ...

Read more...
Power stack reference design leverages Microchip SiC devices
Future Electronics Power Electronics / Power Management
E-mobility and renewable energy systems require power management solutions that drive performance and cost efficiencies in addition to speeding up development time. To keep pace with these requirements, ...

Read more...