MP3314 3-30V, 60mA, 6CH, 1250kHz Boost White LED Driver QFN-24

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MP3314 3-30V, 60mA, 6CH, 1250kHz Boost White LED Driver QFN-24

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pMPS MP3314 — Boost White LED Driver, 3-30V input, 60 mA output, 6 channels, QFN-24./p

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MPS QFN-24 LED Drivers Boost LED Power Management

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MP3314 3-30V, 60mA, 6CH, 1250kHz Boost White LED Driver QFN-24

The MPS MP3314 is a Boost White LED Driver. It operates from a 3 V to 30 V input, is rated for 60 mA, drives 6 LED strings and switches at 1250 kHz. It is supplied in a QFN-24 package.

The MP3314 is a 6-channel white LED (WLED) driver that operates from a 3V to 30V input voltage (VIN) range.

Key Specifications

Part Number	MP3314
Function	Boost White LED Driver
Input Voltage	3 V to 30 V
Output Voltage	43 V
Current Rating	60 mA
Channels	6
Switching Frequency	1250 kHz
Interface	I²C
Package	QFN-24
Ordering Codes	MP3314

Features

3V to 30V Input Voltage (VIN) Range
6 Channels, Max 60mA/Ch
50V, 150mΩ On Resistance, Integrated Low-Side MOSFET (LS-FET)
Up to 43V Output Voltage (VOUT)
187.5mV LED Regulation Voltage at 20mA
2% LED Current (ILED) Accuracy at 20mA o 1.5% ILED Matching at 20mA (QFN-24) o 3% ILED Matching at 20mA (CSP-20)
Selectable 312kHz, 625kHz, or 1250kHz Switching Frequency (fSW)
Auto-Selected fSW for High Efficiency
I2C and External Pulse-Width Modulation (PWM) Brightness Control
Analog, PWM, and Mix Dimming

Typical Application Circuit

Applications

Notebooks

Design Notes

Channel-to-channel current matching sets backlight uniformity; check the matching spec at the current you will actually run.
In boost topologies the OVP threshold must clear the worst-case forward voltage of the longest string, including temperature and binning spread.
Keep PWM dimming above 200 Hz to stay clear of visible flicker, and away from the audio band if the product has a speaker.
Size the inductor and output capacitor for the string current ripple, not the total LED current.