LX1744 datasheet(2/16 Pages) MICROSEMI

2 / 16 page

LX1744

PRODUCTION DATASHEET

Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 2

Dual Output Boost – LED Driver / LCD Bias

I N T E GR A T ED

PRODUCT S

Rev. 1.1b, 2005-03-01

ABSOLUTE MAXI MUM RATI NGS

Supply Input Voltage ...........................................................................-0.3V to 7V

Feedback Input Voltage (VFB, VLFB).......................................-0.3V to VIN + 0.3V

Shutdown Input Voltage (VSHDN , VLSHDN)) ...........................-0.3V to VIN + 0.3V

PWM Input Amplitude (ADJ, BRT).......................................-0.3V to VIN + 0.3V

Analog Adjust Input Voltage (VADJ, VBRT).............................-0.3V to VIN + 0.3V

SRC Input Current ................................................................................ 800mARMS

Operating Temperature Range .........................................................-40

°C to 85°C

Maximum Operating Junction Temperature ................................................ 150

°C

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

°C to 150°C

RoHS Peak Package Solder Reflow Temperature

(40 second maximum exposure) ..................................................... 260°C (+0, -5)

Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to

Ground. Currents are positive into, negative out of specified terminal

TH ERM A L DATA

LQ Plastic MLPQ 16-Pin

THERMAL RESISTANCE

-JUNCTION TO AMBIENT,

°C/W

PW Plastic TSSOP 14-Pin

THERMAL RESISTANCE

-JUNCTION TO AMBIENT,

°C/W

Junction Temperature Calculation: TJ = TA + (PD x θJA).

The

θJA numbers are guidelines for the thermal performance of the device/pc-board system. All of the

above assume no ambient airflow.

PACKAGE PI N OUT

LSHDN

REF

ADJ

DRV

SRC

OVP

BRT

GND

LFB

SHDN

PW PACKAGE

(Top View)

SHDN1

ADJ

LFB

OVP

DRV

LQ PACKAGE

(Bottom View)

(“N.C.” = No Internal Connection)

RoHS / Pb-free 100% Matte Tin Lead Finish

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