MP3378E datasheet(4/23 Pages) MPS

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MP3378E

– 4-CHANNEL WLED CONTROLLER WITH BUCK CONVERTER

MP3378E Rev. 1.02

www.MonolithicPower.com

5/26/2017

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

ABSOLUTE MAXIMUM RATINGS

(1)

WLED Controller

VIN1 .............................................. -0.3V to +28V

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

VGATE, VCC1, VISENSE ..................... -0.3V to +6.5V

All other pins..............................

–0.3V to VCC1

Buck Converter

VIN2, VSW ....................................... –0.3V to 28V

VBST ...................................................... VSW+6V

All other pins...................................

–0.3V to 6V

Continuous power dissipation (TA = 25°C)

(2)

TSSOP-28 EP ...........................................3.9W

Junction Temperature .............................. 150°C

Lead Temperature ................................... 260°C

Recommended Operating Conditions

(3)

Supply voltage (VIN1, VIN2) .................. 5V to 24V

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

Thermal Resistance

(4)

θJA

θJC

TSSOP-28 EP……………......….32........6....°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)/θJA. 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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