ISL97631 데이터 시트보기 (PDF) - Renesas Electronics

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ISL97631

White LED Boost Regulator With Integrated Schottky Diode

Renesas Electronics 

ISL97631

NOT RECOMMENDED FOR NEW DESIGNS

RECOMMENDED REPLACEMENT PART

ISL97634

White LED Boost Regulator With Integrated Schottky Diode

DATASHEET

FN7370

Rev 1.00

December 21, 2005

The ISL97631 represents a high efficiency, constant

frequency PWM regulator with integrated boost diode and

FET. Designed for use in white LED driving applications, the

ISL97631 features efficiencies up to 85%. It operates at

1.35MHz switching frequency and operates from an input

voltage of between 2.7V and 5.5V. The maximum output

voltage of 27V enables the ISL97631 to drive up to 6 LEDs in

series. It is also possible to use the ISL97631 to drive LEDs

in series/parallel combination for applications requiring up to

15 LEDs.

Available in the 6 Ld TSOT package, the ISL97631 offers

high efficiency, constant frequency operation. It is specified

for operation over the -40°C to +85°C ambient temperature

range.

Pinout

ISL97631

(6 LD TSOT)

TOP VIEW

VOUT 1

GND 2

LX 3

6 VIN

5 FB

4 ENAB

Features

• Up to 6 LEDs in series

• 27V maximum output

• 2.7V to 5.5V input

• Up to 85% efficient

• 1.35MHz constant frequency

• Enable/PWM dimming control

• Pb-free plus anneal available (RoHS compliant)

Applications

• LED backlighting

• Cell phones

• PDAs

• Handheld games

• MP3 players

• GPS

• Other handheld devices

Ordering Information

PART NUMBER

PART

MARKING

PCS.

TAPE &

REEL

PACKAGE

(TAPE AND REEL)

PKG. DWG. #

ISL97631IHTZ-T7 (See Note)

631Z

3,000

7”

6 Ld TSOT (Pb-free)

MDP0049

ISL97631IHTZ-T7A (See Note)

631Z

270

7”

6 Ld TSOT (Pb-free)

MDP0049

NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate

termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL

classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

FN7370 Rev 1.00

December 21, 2005

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