MP2483 datasheet(2/14 Pages) MPS

2 / 14 page

MP2483 – 2.5A, 55V, PROGRAMABLE FREQUENCY WHITE LED DRIVER

MP2483 Rev. 1.0

www.MonolithicPower.com

12/25/2013

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

ORDERING INFORMATION

Part Number*

Package

Top Marking

Free Air Temperature (TA)

MP2483DQ

3x3 QFN10

-40

°C to +85°C

MP2483DS

SOIC14

MP2483DS

-40

°C to +85°C

* For Tape & Reel, add suffix –Z (e.g. MP2483DQ–Z).

For RoHS compliant packaging, add suffix –LF (e.g. MP2483DQ–LF–Z)

PACKAGE REFERENCE

TOP VIEW

VDD

VSS

OVP

COMP

BST

INGND

EN/DIM

RSET

VDD

VSS

OVP

COMP

BST

INGND

EN/DIM

REST

TOP VIEW

QFN10

SOIC14

ABSOLUTE MAXIMUM RATINGS (1)

Supply Voltage VDD – VSS.............................60V

VSW – VSS .................................... -0.3V to 60.3V

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

VEN/Dim – VINGND............................... -0.3V to +6V

VINGND – VSS ................................... -0.3V to 60V

Other pins – VSS............................. -0.3V to +6V

Continuous Power Dissipation (TA = +25°C)

(2)

3x3 QFN10 ................................................2.5W

SOIC14......................................................1.4W

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

°C

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

°C

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

°C to +150°C

Recommended Operating Conditions

(3)

Supply Voltage VDD – VSS................ 4.5V to 55V

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

Thermal Resistance

(4)

θJA

θJC

3x3 QFN10 .............................50 ...... 12 ...

°C/W

SOIC14...................................86 ...... 38 ...

°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 function is not guaranteed outside of the

recommended operating conditions.

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

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