Monolithic Power Systems (MPS) MPQ6519 H-Bridge Current Regulator

Monolithic Power Systems (MPS) MPQ6519 H-Bridge Current Regulator is a monolithic, step-down current-source driver for applications that require accurate and fast current-response control. The MPQ6519 achieves up to 5A output current with excellent load and line regulation over a wide input supply range.

The four integrated MOSFET H-bridge controls provide a fast dynamic load response and an ultra-high efficiency solution. For ease of use, the output polarity can be controlled by pulling MODE high or low. By setting the full-scale output current through an external resistor, the output current can be dimmed by the PWM input signal from 0% to 100% of the full-scale current range.

Complete protection features include open-load protection, load-short protection, over-current protection (OCP), over-temperature protection (OTP), and input over-voltage protection (OVP). The Monolithic Power Systems (MPS) MPQ6519 is available in a QFN-19 (4mm x 4mm) package.


  • Wide 3V to 28V operating input range
  • Up to 5A output load current
  • ±2% accuracy at full-scale reference
  • 65mΩ RDS(ON) for each MOSFET of H-bridge
  • 100% duty cycle operation of H-bridge
  • 30kHz to 300kHz programmable switching frequency
  • 20kHz to 100kHz PWM input for current regulation
  • Programmable full-scale current
  • Up to 94% efficiency
  • Selectable current polarity mode
  • Switching auto-disabled by PWM input detection
  • Shutdown mode
  • Inherent open-load protection
  • Cycle-by-cycle Over-Current Protection (OCP)
  • Output Short-Circuit Protection (SCP)
  • Input Over-Voltage Protection (OVP)
  • Over-temperature shutdown
  • Available in a QFN-19 (4mm x 4mm) package
  • Available in AEC-Q100 Grade 1


  • Current regulators
  • DC motors
  • Solenoid/actuators

Typical Application

Application Circuit Diagram - Monolithic Power Systems (MPS) MPQ6519 H-Bridge Current Regulator
Pubblicato: 2021-11-30 | Aggiornato: 2023-08-15