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16

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11

10

9

GND

SDI

CLK

LE(ED1)

OUT0

OUT1

OUT2

OUT3

VDD

R-EXT

SDO

OE(ED2)

OUT7

OUT6

OUT5

OUT4

D, N, OR PW PACKAGE

(TOP VIEW)

TLC5916, TLC5917

8-BIT CONSTANT-CURRENT LED SINK DRIVERS

SLVS695 – JUNE 2007

Terminal Descriptions

TERMINAL

DESCRIPTION

NAME

CLK

Clock input for data shift on rising edge

GND

Ground for control logic and current sink

Data strobe input

Serial data is transferred to the respective latch when LE(ED1) is high. The data is latched when LE(ED1) goes low.

LE(ED1)

Also, a control signal input for an Error Detection mode and Current Adjust mode (See Timing Diagram). LE(ED1) has

an internal pulldown.

Output enable. When OE(ED2) is active (low), the output drivers are enabled; when OE(ED2) is high, all output drivers

OE(ED2)

are turned OFF (blanked). Also, a control signal input for an Error Detection mode and Current Adjust mode (See

Timing Diagram). OE(ED2) has an internal pullup.

OUT0–OUT7

Constant-current outputs

R-EXT

Input used to connect an external resistor for setting up all output currents

SDI

Serial-data input to the Shift register

SDO

Serial-data output to the following SDI of next driver IC or to the microcontroller

VDD

Supply voltage

Diagnostic Features

OVERTEMPERATURE

OPEN-LOAD

SHORT TO GND

DETECTION

DETECTION

DETECTION

DETECTION

TLC5916

X

X

X

TLC5917

X

X

X

X

(1)

The device has one single error register for all these conditions (one error bit per channel).

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