el1848 Intersil Corporation, el1848 Datasheet

el1848

Manufacturer Part Number

el1848

Description

White Led Step-up Regulator

Manufacturer

Intersil Corporation

Datasheet

1.EL1848.pdf (12 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

el1848IWTZ-T7

Manufacturer:

KYOCERA

Quantity:

8 000

Current page: 1 of 12
Download datasheet (495Kb)

White LED Step-Up Regulator

LEDs in series or up to 9 LEDs in parallel/series

configuration and achieves efficiency up to 91%.

The brightness of the LEDs is adjusted through a voltage

level on the CNTL pin. When the level falls below 0.1V, the

chip goes into shut-down mode and consumes less than

1µA of supply current for V

The EL1848 is available in 8-pin TSOT and MSOP

packages. The TSOT is just 1mm high, compared to

1.45mm for the standard SOT-23 package.

Ordering Information

NOTE: Intersil Pb-free products employ special Pb-free material

sets; molding compounds/die attach materials and 100% matte tin

plate termination finish, which is 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-020B.

EL1848IWT-T7

EL1848IWT-T7A

EL1848IWTZ-T7

(See Note)

EL1848IWTZ-

T7A (See Note)

EL1848IY

EL1848IY-T7

EL1848IY-T13

NUMBER

PART

8-Pin MSOP

8-Pin TSOT

PACKAGE

(Pb-free)

The EL1848 is a constant current

boost regulator specially designed for

driving white LEDs. It can drive 3

less than 5.5V.

TAPE & REEL PKG. DWG. #

7” (250 pcs)

7” (3K pcs)

Data Sheet

13”

7”

MDP0049

MDP0043

1-888-INTERSIL or 321-724-7143

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Features

• 2.6V to 13.2V input voltage

• 14V maximum output voltage

• Drives up to 9 LEDs, 3 in a series

• 1MHz switching frequency

• Up to 91% efficiency

• 1µA maximum shut-down current

• Dimming control

• 8-pin TSOT and MSOP packages

• Pb-free Available

Applications

• PDAs

• Cellular phones

• Digital cameras

• White LED backlighting

Typical Connection

2.6V TO

CTRL

5.5V

March 31, 2004

4.7µF

0.1µF

All other trademarks mentioned are the property of their respective owners.

Intersil (and design) is a registered trademark of Intersil Americas Inc.

VIN

CNTL

COMP

33µH

PGND

SGND

VOUT

EL1848

FN7427

1µF

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