Description

The MPQ6519 is a monolithic, step-down current-source driver for applications that require accurate and fast current-response control. The MPQ6519 achieves up to 5A of 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.

Full protection features include open-load protection, load-short protection, over-current protection (OCP), over-temperature protection (OTP), and input over-voltage protection (OVP).

The MPQ6519 is available in a QFN-19 (4mmx4mm) package.

Advantages Include:

    Wide 3V to 28V operating input range, up to 5A output current
    Configurable full-scale current, up to 94% efficiency
    Low 130mΩ HS-FET and LS-FET on resistance
    Protection features: short-circuit protection (SCP), over-current protection (OCP), over-temperature protection (OTP), over-voltage protection (OVP)
    Available in AEC-Q100 Grade 1

Features & Benefits

    H-Bridge Current Regulator:
    Wide 3V to 28V Operating Input Range
    Up to 5A Output Load Current
    ±2% Accuracy at Full-Scale Reference
    65mΩ RDS(ON) for Each H-Bridge MOSFET
    100% Duty Cycle Operation
    30kHz to 300kHz Configurable Switching Frequency (fSW)
    20kHz to 100kHz PWM Input for Current Regulation
    Programmable Full-Scale Current:
    Up to 94% Efficiency
    Selectable Current Polarity Mode
    Auto-Disabled Switching via Pulse-Width Modulation (PWM) Input Detection
    Protection Features and Package:
    OCP, SCP, OVP, OTP, and Open-Load Protection
    Available in a QFN-19 (4mmx4mm) Package
    Available in AEC-Q100 Grade 1


APPLICATIONS
    Current Regulators
    DC Motors
    Solenoid/Actuators