TLC5921

LED DRIVER

SLLS390 – SEPTEMBER 1999

1

POST OFFICE BOX 655303

– 80 mA (Current Sink) x 16 Bits

– 1 to 80 mA (Current Value Setting for All

Output Terminals Using External Resistor)

–

±1% (Typ)

–

±4% (Max) (Maximum Error Between

Bits, All Bits On)

Terminal

– Minimum 0.6 V (Output Current 40 mA)

– Minimum 1 V (Output Current 80 mA)

– Clock Synchronized 1 Bit Serial Input

– Clock Synchronized 1 bit Serial Output

(With Timing Selection)

–20

°C to 85°C

(Error Signal Output at LED Disconnection)

Output Off When Junction Temperature

Exceeds Limit)

description

The TLC5921 is a current-sink constant current driver incorporating shift register and data latch. The current

value at constant current output can be set by one external register. The device also incorporates thermal

shutdown (TSD) circuitry which turns constant current output off when the junction temperature exceeds the

limit, and LED open detection (LOD) circuitry to report the LED was disconnected.

Copyright

© 1999, 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.

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.

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GND

BLANK

XLAT

SCLK

SIN

PGND

OUT0

OUT1

PGND

OUT2

OUT3

OUT4

OUT5

PGND

OUT6

OUT7

VCC

IREF

SOMODE

XDOWN

SOUT

PGND

OUT15

OUT14

PGND

OUT13

OUT12

OUT11

OUT10

PGND

OUT9

OUT8

(TOP VIEW)

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