MP24881

MP24881

60V, 1.1A, Synchronous Step-Down LED Driver with PWM and Analog Dimming Function

Datasheet

Description

The MP24881 is a 60V, monolithic, synchronous step-down LED driver with an integrated N-channel MOSFET and rectifier. It delivers up to 1.1A of continuous LED current (I_LED) to high-power LEDs. The wide 10V to 60V input voltage (V_IN) range accommodates a variety of step-down lighting applications. Hysteretic current mode minimizes the loop compensation design and achieves fast transient response, which makes the 25kHz pulse-width modulation (PWM) dimming frequency possible.

The MP24881 supports analog dimming with a PWM or analog signal input, which helps remove the flicker caused by the PWM frequency (f_PWM). The separated PWM and analog dimming input port enables all PWM signal-controlled hybrid dimming. The hybrid dimming depth can reach as low as 0.1%.

Full protections include current-sense (CS) short protection, low-side (LS) reverse over-current protection (OCP), high-side (HS) OCP, and thermal shutdown.

The MP24881 is available in an SOIC-8EP package.

Features & Benefits

Wide 10V to 60V Operating Input Voltage (V_IN) Range
Up to 1.1A of LED Current (I_LED)
Synchronous Step-Down Converter
Internal 100mΩ High-Side MOSFET (HS-FET)
Internal 110mΩ Synchronous Rectifier (SR)
Hysteretic Control
Up to 2MHz Switching Frequency (f_SW)
100mV Reference Voltage (V_REF)
LED Common Cathode Connection
Excellent Pulse-Width Modulation (PWM) Dimming Performance:
- Up to 25kHz PWM Dimming Frequency
- 20000:1 Wide Dimming Range
Down to 0.1% Dimming Depth
All PWM Signal-Controlled Hybrid Dimming
High-Side (HS) Over-Current Protection (OCP)
Current-Sense (CS) Short Protection
Low-Side (LS) Reverse OCP
Thermal Shutdown
Available in an SOIC-8EP Package

Active Part Numbers:

MP24881GN-Z MP24881GN-P

Meaning of P & Z

Related Products

EV24881-S-00A 60V, 700mA, Synchronous Step-Down LED Driver Evaluation Board

The EV24881-S-00A is an evaluation board designed to demonstrate the capabilities of the MP24881, a 60V, monolithic, synchronous step-down LED driver with a built-in N-channel MOSFET and rectifier. It delivers up to 1.1A of continuous output current (I_OUT) to high-power LEDs. The wide 10V to 60V input voltage (V_IN) range accommodates a variety of step-down lighting applications. Hysteretic current mode control achieves very fast transient response and eliminates the need for loop compensation design.

$25.00
+ tax