MP46885 datasheet(2/10 Pages) MPS

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MP46885 – 80V INPUT, 500mA HIGH POWER LED DRIVER

MP46885 Rev. 1.0

www.MonolithicPower.com

7/7/2011

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

ORDERING INFORMATION

Part Number*

Package

Top Marking

Free Air Temperature (TA)

MP46885DN

SOIC8E

MP46885

-40

C to +85C

* For Tape & Reel, add suffix –Z (e.g. MP46885DN–Z);

For RoHS compliant packaging, add suffix –LF (e.g. MP46885DN–LF–Z)

PACKAGE REFERENCE

ABSOLUTE MAXIMUM RATINGS (1)

Supply Voltage (VIN)......................-0.3V to +80V

Switch Voltage (VSW).............-0.5V to VIN + 0.5V

BST to SW ......................................-0.3V to +6V

All Other Pins..................................-0.3V to +6V

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

C

Continuous Power Dissipation (TA = +25°C)

(2)

............................................................. 2.5W

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

C

Storage Temperature............... -65°C to +150

C

Recommended Operating Conditions

(3)

Supply Voltage VIN ...........................4.5V to 75V

EN and DIM Voltages ...........................0V to 5V

Switching Frequency ................................ 2MHz

Operating Junct. Temp. ........... -40

C to +125C

Thermal Resistance

(4)

θJA

θJC

SOIC8E (Exposed Pad) ..........50 ...... 10 ...

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

operating conditions.

4) Measured on JESD51-7 4-layer board.

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