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 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
Applications
- Current regulators
- DC motors
- Solenoid/actuators
Typical Application
