MP3398DGS datasheet(3/19 Pages) MPS

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MP3398D – 4-STRING, 350MA/STRING, STEP-UP, WHITE LED CONTROLLER

MP3398D Rev. 1.0

www.MonolithicPower.com

5/23/2016

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

ABSOLUTE MAXIMUM RATINGS

(1)

VIN .............................................. -0.3V to +30V

VGATE........................................... -0.3V to +6.5V

VCC............................................ -0.3V to +6.8V

VLED1 to VLED4 .................................. -1V to +55V

VISENSE......................................... -0.5V to +6.5V

All other pins................................. -0.3V to VCC

Continuous power dissipation (TA = 25°C)

(2)

SOIC16…………………………………….. 1.56W

SOIC20……………………………………..1.74W

Junction temperature ............................... 150°C

Lead temperature .................................... 260°C

ESD capability human body mode (all pins)

.................................................................3.5kV

Recommended Operating Conditions

(3)

Supply voltage (VIN).......................... 5V to 28V

LED current (backlight) ............10mA to 350mA

Operating junction temp. (TJ). .. -40°C to +125°C

Thermal Resistance

(4)

θJA θJC

SOIC16…………………………80….. 35....... °C/W

SOIC20...................………….72......30....... °C/W

NOTES:

1) Exceeding these ratings may damage the device. The voltage

is measured with a 20MHz bandwidth limited oscilloscope.

2) The maximum allowable power dissipation is a function of the

maximum junction temperature TJ (MAX), the junction-to-

ambient thermal

resistance θ

JA, and the ambient temperature

TA. The maximum allowable continuous power dissipation at

any ambient temperature is calculated by PD (MAX) = (TJ

(MAX)-TA

)/θ

JA.

Exceeding the maximum allowable power

dissipation produces an excessive die temperature, causing

the regulator to go into thermal shutdown. Internal thermal

shutdown circuitry protects the device from permanent

damage.

3) The device is not guaranteed to function outside of its

operating conditions.

4) Measured on JESD51-7, 4-layer PCB.

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