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MP1488

2.5V-6Vin Boost WLED Driver

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Datasheet

Description

The MP1488 is a step-up converter designed for driving up to 27 WLEDs (9 strings of 3 WLEDs each) from a 5V system rail. The MP1488 uses a current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. Its low 104mV feedback voltage reduces power loss and improves efficiency. The OV pin monitors the output voltage and turns off the converter if an over-voltage condition is present due to an open circuit condition. The MP1488 includes under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload. The MP1488 is available in a small 6-pin TSOT23 package.

Features & Benefits

2.5V to 6V Input Voltage Range
On Board Power MOSFET
Drives up to 27 White LEDs at 5V Input
Up to 92% Efficiency
Over 1MHz Fixed Switching Frequency
Open Load Shutdown
Low 104mV Feedback Voltage
Soft-Start/PWM Dimming
UVLO, Thermal Shutdown
Internal 800mA Current Limit
Available in a TSOT23-6 Package

Evaluation Tools

1EV3202-00A Evaluation Kit .3A Fixed Frequency White LED Driver Evaluation Board

The EV3202-00A is an evaluation board for the MP3202, a step-up converter designed for driving up to 39 white LEDs (13 strings of 3 LEDs each) from a 5V system rail, or 27 white LEDs from 4.5V to 6V.

The MP3202 uses current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. Its low 104mV feedback voltage reduces power loss and improves efficiency. The OV pin monitors the output voltage and turns off the converter if an over-voltage condition is present due to an open circuit condition.

The MP3202 includes under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload.

$25.00
+ tax

Buy direct from MPS