Description

The MP6519 is a monolithic, step-down, current-source driver for applications that require accurate and fast current-response control. The MP6519 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 control 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 - 100% of the full-scale current range.

Full protection features include load open, loadshort protection, over-current protection (OCP), over-temperature protection (OTP), and input over-voltage protection (OVP). The MP6519 is available in a QFN-19 (3mmx3mm) package.

Features & Benefits

    Wide 2.5V to 28V Operating Input Range
    Up to 5A Output Load Current
    ± 2% Accuracy at Full-Scale Reference
    65mΩ RDS(ON) for Each MOSFET of HBridge
    100% Duty Cycle Operation of H-Bridge
    30kHz to 300kHz Programmable Switching Frequency
    20kHz - 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
    1μA 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 (3mmx3mm)

APPLICATIONS
   Current Regulators
   DC Motors
   Solenoid/Actuators