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.

Features

Wide 3V to 28V operating input range
Up to 5A output load current
±2% accuracy at full-scale reference
65mΩ R_DS(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

Applications

Current regulators
DC motors
Solenoid/actuators

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

Features

Applications

Typical Application

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