MP1519DQL datasheet(2/9 Pages) MPS

2 / 9 page

MP1519L – 1X, 1.5X, 2X CHARGE PUMP 3 WHITE LED DRIVER

MP1519L Rev. 1.3

www.MonolithicPower.com

7/27/2006

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

PACKAGE REFERENCE

Part Number*

Package

Temperature

MP1519DQL

QFN16

(3mm x 3mm)

–40

°C to +85°C

MP1519DQTL

Thin QFN16

(3mm x 3mm)

–40

°C to +85°C

* For Tape & Reel, add suffix –Z (eg. MP1519DQL–Z)

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

MP1519DQL–LF–Z)

ABSOLUTE MAXIMUM RATINGS

(1)

VBATT to GND .............................................. 6.5V

Power Dissipation (QFN).......................... 1.0 W

Logic Inputs to GND ..................... –0.3V to 6.5V

Storage Temperature ...............–65

°C to 150°C

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

°C

Recommended Operating Conditions

(2)

Input Voltage VBATT ......................... 2.5V to 5.5V

Operating Temperature .............–40

°C to +85°C

Thermal Resistance

(3)

θJA

θJC

3x3 QFN16 ............................. 60 ...... 12...

°C/W

3x3 TQFN16 ........................... 60 ...... 12...

°C/W

Notes:

1) Exceeding these ratings may damage the device.

2) The device is not guaranteed to function outside of its

operating conditions.

3) Measured on approximately 1” square of 1 oz copper.

ELECTRICAL CHARACTERISTICS

VBATT = 5V, TA = +25°C, unless otherwise noted.

Parameter

Symbol

Condition

Min

Typ

Max

Units

Input Supply Voltage

VBATT

2.5

5.5

VBATT at 1x to 1.5x Mode Switch

VBATT 1x-1.5x

ILED = 20mA, VBATT Decreasing,

VLED = 3.35V @ 20mA

3.6

VBATT at 1.5x to 2x Mode Switch

VBATT 1.5x-2x

ILED = 20mA, VBATT Decreasing,

VLED = 3.35V @ 20mA

2.8

VBATT at 2x to 1.5x Mode Switch

VBATT 2x-1.5x

VBATT Increasing,

VLED = 3.35V @ 20mA

3.1

VBATT at 1.5x to 1x Mode Switch

VBATT 1.5x-1x

VBATT Increasing,

VLED = 3.35V @ 20mA

3.8

Supply Current

IBATT

3 LEDs at 20mA, 2x Mode,

VBATT = 2.5V

124

140

Supply Current Shutdown

IBATT SHDN VEN = 0V

0.1

µA

Current Matching

(4)

ILED MATCH ILED = 20mA

1.5

Enable Voltage, High

VEN (HIGH)

1.4

2.0

Enable Voltage, Low

VEN (LOW)

0.8

1.0

Enable Pin Leakage

IEN

VEN = 5V

0.1

µA

Charge Pump Frequency

FCP

VBATT = 3.3V

1.0

1.3

1.6

MHz

Time to Standby Mode

(5)

TOFF

Enable Switched Low

µs

Enable Pin PWM Frequency Limit

FHPWM

KHz

LED Current

ILED

RSET = 1.54kΩ

Notes:

4) Matching is defined as the difference of the maximum to minimum current divided by the sum of the maximum and minimum currents.

5) Standby mode switches to shutdown when the output voltage on LEDC drifts back to GND.

TOP VIEW

EXPOSED PAD

CONNECT TO PIN 8

PIN 1 ID

GND

C1A

RADJ

GND

C2B

LEDC

C1B

C2A

BATT

LED1

LED2

LED3

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