MP3385A datasheet(4/25 Pages) MPS

4 / 25 page

MP3385A – 4-STRING WLED CONTROLLER WITH I

2C INTERFACE

MP3385A Rev. 1.01

www.MonolithicPower.com

8/29/2017

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

ABSOLUTE MAXIMUM RATINGS

(1)

VIN .................................................-0.3V to +40V

VOVP, VLED1 to VLED4 .......................-0.3V to +80V

All other pins ... -0.3V (-0.5V for <10ns) to +6.5V

Continuous power dissipation (TA = 25°C)

(2)

QFN-20 (4mmx4mm)............................... 2.97W

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

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

Recommended Operating Conditions

(3)

Supply voltage (VIN) .........................4.5V to 33V

Operating junction temp........... -40°C to +125°C

Thermal Resistance

(4)

θJA

θJC

QFN-20 (4mmx4mm)............. 42........ 9.... °C/W

NOTES:

1) Exceeding these ratings may damage the device.

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

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

ambient thermal resistance θJA, 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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