MP2489DJ-LF-Z

6V-60V 1A Buck LED Driver with Hysteresis Control, DC and PWM Dimming Control

Product Description

The MP2489 is a high efficiency buck converter designed in continuous current mode for driving high brightness light emitting diodes (LEDs) from a wide input voltage of 6V to 60V. The MP2489 uses a hysteretic control structure to regulate the high precision LED current by measuring an external high side current sense resistor. In addition, the control scheme provides optimized circuit stability and fast response time without loop compensation. Its low 202mV average feedback voltage reduces power loss and improves converter efficiency. The MP2489 performs pulse width modulation and analog dimming along with the dimming pin. The MP2489 includes thermal overload protection to prevent damage when the output is overloaded. The MP2489 is available in small QFN6 (3x 3mm), TSOT23-5 and SOIC8E packages.

Product Features

Guaranteed Industrial/Automotive Temperature

Internal 60V MOSFET

Wide 6V to 55V Input Range

A output current

High efficiency (>95%)

Hysteresis control

Pulse Width Modulation and Analog Dimming

1000:1 PWM Dimming Resolution

thermal shutdown

Inherent open LED protection

Short LED Protection

Available in QFN6 (3x 3mm) and SOIC8E packages.

Suitable for AEC-Q100 Grade 1

technical parameter

Minimum input voltage6

Vin (max) (V)60

Vout (max) (V)57

Iout (max) (A)1

SyncNo

Open LED ProtectionYes

Rds(on) (mΩ)500

GradeCatalog

PackageQFN-6 (3x3)

TypeBuck

Vfb (V)0.2

fsw (max) (kHz)600

Iq (mA)1

Ishutdown (μA)65