MP3389EY datasheet(2/16 Pages) MPS

2 / 16 page

MP3389—12-STRING WHITE LED DRIVER WITH STEP-UP CONTROLLER

MP3389 Rev. 1.04

www.MonolithicPower.com

3/27/2013

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

ORDERING INFORMATION

Part Number*

Package

Top Marking

MP3389EF

TSSOP28

3389EF

MP3389EY

SOIC28

3389EY

For Tape & Reel, add suffix –Z (eg. MP3389EF–Z).

For RoHS compliant packaging, add suffix –LF (eg. MP3389EF–LF–Z)

For Tape & Reel, add suffix –Z (eg. MP3389EY–Z).

For RoHS compliant packaging, add suffix –LF (eg. MP3389EY–LF–Z)

PACKAGE REFERENCE

VIN

VCC

COMP

DBRT

GND

OSC

ISET

BOSC

LED12

LED11

LED10

LED9

VFAULT

GATE

PGND

ISENSE

OVP

LED1

LED2

LED3

LED4

LED5

LED6

LED7

LED8

TOP VIEW

TSSOP28

SOIC28

ABSOLUTE MAXIMUM RATINGS

(1)

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

VVFAULT........................................... VIN - 6V to VIN

VGATE ..............................................-0.5V to 6.3V

VLED1 to VLED12 ..................................-1V to +50V

All Other Pins...............................-0.3V to +6.3V

Continuous Power Dissipation (TA = +25°C)

(2)

TSSOP28……………………………… ...3.9W

SOIC28………………………………… ...2.1W

Junction Temperature...............................150

°C

Lead Temperature ....................................260

°C

Storage Temperature............... -65

°C to +150°C

Recommended Operating Conditions

(3)

Supply Voltage VIN ..............................5V to 28V

LED Current (Backlight) .............10mA to 60mA

Operating Junction Temp. (TJ). -40°C to +125°C

Thermal Resistance

(4)

θJA

θJC

TSSOP28................................32 ....... 6 ....

°C/W

SOIC28 ..................................60 ...... 30 ...

°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 will cause excessive die temperature, and the

regulator will 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

operation conditions.

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

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