TLED2043

4-CHANNEL WHITE LED DRIVER

SLDS147C – JUNE 2002 – REVISED NOVEMBER 2002

1

POST OFFICE BOX 655303

6

Ω Max

Proportional to Battery Voltage to Save

Power

Power Savings During OFF State . . .

1

µA Max

PDAs, Palmtops, etc.

terminal assignments

1234

A

D1

S1

S4

D4

B

VIN1

VOUT2

SW

VIN2

C

IN+

VOUT1

VIN3

GND

D

FB

NC

IN–

VOUT3

E

D2

S2

D3

S3

NC – No internal connection

TERMINAL

DESCRIPTION

D1, D2, D3, D4

Drain of FETs 1, 2, 3, and 4, respectively

S1, S2, S3, S4

Source of FETs 1, 2, 3, and 4, respectively

VIN1, VIN2, VIN3

Input of switches 1, 2, and 3, respectively

VOUT1, VOUT2, VOUT3

Output of switches 1, 2, and 3, respectively

SW

Operates switches 1, 2, and 3 in unison

Low input = switches are closed

High input or Open = switches are open

IN+

Noninverting input to current-control amplifier

IN–

Inverting input to current-control amplifier

FB

Provides feedback connection to IN– of

current-control amplifier

GND

Device ground

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Copyright

 2002, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

S1

D1

SW

IN+

IN–

FB

S2

D2

S4

D4

GND

NC

S3

D3

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

PW PACKAGE

(TOP VIEW)

NC – No internal connection

GQN PACKAGE

(TOP VIEW)

1

234

A

B

C

D

E