( )

IOUTXn

%

1

100

(IOUTX0

IOUTX1

IOUTX14

IOUTX15)

16

é

ù

ê

ú

D

=

-

´

ê

ú

+

+ ¼ +

+

ê

ú

ê

ú

ë

û

Thermal

PAD

(Solder side)

(GND terminal)

15 16

17 18 19

20 21 22

52 51 50 49

42

41

40

39

38

37

56

55 54 53

1

2

3

4

5

6

7

8

SOUT

OUTB9

OUTG9

OUTR9

OUTB8

OUTG8

OUTR8

OUTB7

OUTG7

OUTR7

OUTB6

OUTG6

OUTR6

GCLK

IREF

OUTR14

OUTG14

OUTB14

OUTR15

OUTG15

OUTB15

OUTR0

OUTG0

OUTB0

OUTR1

OUTG1

OUTB1

OUTR2

36

35

34

33

32

31

30

29

9

10

11

12

13

14

23 24 25 26

27 28

48 47

46 45 44 43

TLC59581, TLC59582

www.ti.com

SLVSCZ9A – OCTOBER 2015 – REVISED NOVEMBER 2015

5 Description (continued)

The TLC59581/82 device has one error flag: the LED open detection (LOD), which can be read through a serial

interface port. To resolve this caterpillar issue caused by an open LED, the TLC59581/82 device has an

ensures a higher system reliability. The TLC59581/82 device also has a power-save mode that sets the total

current consumption to 0.8 mA (typical) when all outputs are off. The TLC59581/82 device is a good solution to

improve display performance of a multiplexing panel for low-grayscale patterns.

6 Pin Configuration and Functions

RTQ Package with Thermal Pad

56-Pin VQFN

(Top View)

Pin Functions

PIN

I/O

DESCRIPTION

NAME

NO.

Grayscale(GS) pulse width modulation (PWM) reference clock control for OUTXn.

GCLK

29

I

Each GCLK rising edge increase the GS counter by 1 for PWM control.

GND

ThermalPad

–

Power ground. The thermal pad must be soldered to GND on PCB.

Maximum constant-current value setting. The OUTR0 to OUTB15 maximum constant output

current are set to the desired values by connecting an external resistor between IREF and

IREF

1

–

device.

Analog ground. Dedicated ground pin for the external IREF resistor. This pin should be

IREFGND

56

–

connected to analog ground trace which is connected to power ground near the common

GND point of board.

(1)

The deviation of each output in same color group (OUTR0~15 or OUTG0~15 or OUTB0~15) from the average of same color group

constant current. The deviation is calculated by the formula. (X = R or G or B, n = 0~15)

spacer

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TLC59582