TEXAS INSTRUMENTS TLC5922 Technical data

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On/Off

Input
Shift

Register

DC Input

Shift

Register

7−bit DC

Delay

x0

Constant

Driver

MODE

0 1

MODE

0

1

0

15

111

0

0
6

0

0

1

7−bit DC

Constant

Driver

7

13

1

7−bit DC

Constant

Driver

On/Off

105
111

15

Maximum

OUTn Current

GNDVCC SINSCLK

SOUT

XLATMODE

OUT0

OUT1

OUT15

PGND BLANK

BLANK

16

112

Delay

x1

Delay

x15

IREF

Current

BLANK

Current

Current

Register

Register

Register

On/Off
Register

Register

On/Off
Register

TLC5922

SLVS486A – SEPTEMBER 2003 – REVISED MARCH 2005

LED DRIVER

FEATURES

• Controlled In-Rush Current

• 16 Channels

• Drive Capability

– 0 to 80 mA (Constant-Current Sink)

• Constant Current Accuracy

– ±1% (typical)

APPLICATIONS

• Monocolor, Multicolor, Fullcolor LED Display

• Monocolor, Multicolor LED Signboard

• Display Backlighting

• Multicolor LED Lighting Applications

• Serial Data Interface, SPI Compatible

• Fast Switching Output: Tr/ Tf= 10ns (typical)

• CMOS Level Input/Output

DESCRIPTION

The TLC5922 is a 16-channel constant-current sink

• 30 MHz Data Transfer Rate driver. Each channel has an On/Off state and a

• V

= 3.0 V to 5.5 V

CC

• Operating Temperature = –20 °C to 85 °C

• LED Supply Voltage up to 17 V

• 32-pin HTSSOP ( PowerPAD™) Package

• Dot Correction

128-step adjustable constant-current sink (dot correc­tion). The dot correction adjusts the brightness vari­ations between LED, LED channels, and other LED
drivers. Both dot correction and On/Off state are
accessible via a serial data interface. A single exter­nal resistor sets the maximum current of all 16
channels.

– 7 bit (128 Steps)
– Individually Adjustable For Each Channel

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.

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

Figure 1. Functional Block Diagram

Copyright © 2003–2005, Texas Instruments Incorporated

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TLC5922

SLVS486A – SEPTEMBER 2003 – REVISED MARCH 2005

These devices have limited built-in ESD protection. The leads should be shorted together or the device
placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

ORDERING INFORMATION

T

A

Package Part Number

(1)

(2)

–20 °C to 85 °C 4 mm x 4 mm, 32-pin HTSSOP TLC5922DAP

(1) For the most current package and ordering information, see the Package Option Addendum at the

end of this document, or see the TI website at www.ti.com .

(2) The DAP package is available in tape and reel. Add R suffix (TLC5922DAPR) to order quantities of

2000 parts per reel.

ABSOLUTE MAXIMUM RATINGS

(1) (2)

TLC5922 UNIT

V

CC

I

O

V

I

V

O

Supply voltage
Output current (dc) I
Input voltage range

Output voltage range

ESD rating

T

stg

Storage temperature range –40 to 150 °C

(2)

(2)

(2)

L(LC)

V

, V

, V

, V

(BLANK)

V

(SOUT)

V

(OUT0)

(XLAT)

(SCLK)

– V

(OUT15)

, V

(SIN)

(MODE)

HBM (JEDEC JESD22-A114, Human Body
Model)

CDM (JEDEC JESD22-C101, Charged Device
Model)

–0.3 to 6 V

90 mA
–0.3 to V
–0.3 to V

+ 0.3 V

CC

+ 0.3 V

CC

–0.3 to 18 V

2 kV

500 V

Continuous total power dissipation at (or below) TA= 25°C 3.9 W
Power dissipation rating at (or above) TA= 25°C 31.4 mW/°C

(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2) All voltage values are with respect to network ground terminal.

RECOMMENDED OPERATING CONDITIONS DC Characteristics

V

CC

V

O

V

IH

V

IL

I

OH

I

OL

I

OLC

T

A

(1) Please contact TI sales for slightly extended temperature range.

2

Supply voltage 3 5.5 V
Voltage applied to output, (Out0 - Out15) 17 V
High-level input voltage 0.8 VCC VCC V
Low-level input voltage GND 0.2 VCC V
High-level output current V
Low-level output current V
Constant output current OUT0 to OUT15 80 mA
Operating free-air temperature range

(1)

MIN NOM MAX UNIT

= 5 V at SOUT –1 mA

CC

= 5 V at SOUT 1 mA

CC

–20 85 °C

www.ti.com

SLVS486A – SEPTEMBER 2003 – REVISED MARCH 2005

AC Characteristics

V

= 3 V to 5.5 V, TA= –20°C to 85°C (unless otherwise noted)

CC

MIN TYP MAX UNIT

f

SCLK

t

wh0

t

wh1

t

su0

t

su1

t

su2

t

su3

t

h0

t

h1

t

h2

t

h3

Clock frequency SCLK 30 MHz

/t

CLK pulse duration SCLK = H/L 16 ns

wl0

XLAT pulse duration XLAT = H 20 ns

SIN – SCLK ↑ 10 ns

Setup time

SCLK ↑ – XLAT ↓ 10 ns
MODE ↑ ↓ – SCLK ↑ 10 ns
MODE ↑ ↓ – XLAT ↓ 10 ns
SCLK ↑ – SIN 10 ns

Hold time

XLAT ↓ – SCLK ↑ 10 ns
SCLK ↑ – MODE ↑ ↓ 10 ns
XLAT ↓ – MODE ↑ ↓ 10 ns

ELECTRICAL CHARACTERISTICS

V

= 3 V to 5.5 V, TA= –20°C to 85°C (unless otherwise noted)

CC

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

V

OH

V

OL

I

I

I

CC

I

OLC

I

LO0

∆ I

OLC0

∆ I

OLC1

∆ I

OLC2

∆ I

OLC3

V

(IREF)

(1) Measured at device start-up temperature. Once the IC is operating (self heating), lower ICCvalues are seen. See Figure 12 .

High-level output voltage IOH= –1 mA, SOUT V

–0.5 V

CC

Low-level output voltage IOL= 1 mA, SOUT 0.5 V
Input current –1 1 µA

VI= V
MODE

or GND, BLANK, XLAT, SCLK, SIN,

CC

No data transfer, All output OFF, VO= 1 V,
R

= 10 k Ω

(IREF)

No data transfer, All output OFF, VO= 1 V,
R

= 1.3 k Ω

Supply current mA

Constant output current All output ON, VO= 1 V, R
Leakage output current 0.1 µA

Constant current error ± 1 ± 4 %

Constant current error ± 4 ± 8.5 %

Power supply rejection ratio ± 1 ± 4 %/V

Load regulation Ω , ± 2 ± 6 %/V

(IREF)

Data transfer 30 MHz, All output ON, VO= 1 V,
R

= 1.3 k Ω

(IREF)

Data transfer 30 MHz, All output ON, VO= 1 V,
R

= 600 k Ω

(IREF)

= 600 Ω 70 80 90 mA

(IREF)

All output OFF, VO= 15 V, R
OUT0 to OUT15

All output ON, VO= 1 V, R
OUT0 to OUT15

= 600 Ω ,

(IREF)

= 600 Ω ,

(IREF)

device to device, averaged current from OUT0
to OUT15, R

All output ON, VO= 1 V, R
OUT0 to OUT15

All output ON, VO= 1 V to 3 V, R

= 600 Ω

(IREF)

= 600 Ω ,

(IREF)

= 600

(IREF)

36 65

OUT0 to OUT15

Reference voltage output R

= 600 Ω 1.20 1.24 1.28 V

(IREF)

TLC5922

6

12

25

(1)

3

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1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17

GND

BLANK

XLAT

SCLK

SIN

PGND

OUT0
OUT1

PGND

OUT2
OUT3
OUT4
OUT5

PGND

OUT6
OUT7

VCC
IREF
MODE
NC
SOUT
PGND
OUT15
OUT14
PGND
OUT13
OUT12
OUT11
OUT10
PGND
OUT9
OUT8

TLC5922

SLVS486A – SEPTEMBER 2003 – REVISED MARCH 2005

SWITCHING CHARACTERISTICS

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

t

r0

t

r1

t

f0

t

f1

t

pd0

t

pd1

t

pd2

t

pd3

t

pd4

t

d

(1) See Figure 4 . Defined as from 10% to 90%
(2) See Figure 5 . Defined as from 10% to 90%
(3) See Figure 4 , Figure 10
(4) See Figure 5 and Figure 10
(5) See Figure 5 , and Figure 10

SOUT(see

Rise time ns

OUTx, V
DCx = 7F (see

SOUT (see

Fall time ns

OUTx, V
DCx = 7F (see

SCLK ↑ – SOUT ↑↓ (see
MODE ↑↓ – SOUT ↑ ↓ (see

Propagation delay BLANK ↓ – OUT0 ↑ ↓ (see
time

XLAT ↑ – OUT0 ↑ ↓ (see
XLAT ↑ – I

(see

Output delay time 14 22 30 ns

OUTn ↑ ↓ – OUT(n+1) ↑ ↓
(see

(1)

) 16

= 5 V, TA= 60°C,

CC

(2)

)

(1)

) 16

= 5 V, TA= 60°C,

CC

(2)

)

(3)

) 300

(3)

) 300

(4)

) 60

(4)

) 60

(dot-correction)

OUT

(5)

)

(4)

)

10 30

10 30

1000

ns

NAME NO.

BLANK 2 2
GND 1 Ground

IREF 31 I/O Reference current terminal
MODE 30 I
OUT0 7 O Constant current output

OUT1 8 O Constant current output
OUT2 10 O Constant current output

4

TERMINAL

I/O DESCRIPTION

Blank (Light OFF). When BLANK = H, All OUTx outputs are forced OFF. When BLANK = L,
ON/OFF of OUTx outputs are controlled by input data.

Mode select. When MODE = L, SIN, SOUT, SCLK, XLAT are connected to ON/OFF control
logic. When MODE = H, SIN, SOUT, SCLK, XLAT are connected to dot-correction logic.

DAP PACKAGE

(TOP VIEW)

Terminal Functions

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VCC

INPUT

GND

400 

SOUT

GND

10 

Terminal Functions (continued)

TERMINAL

NAME NO.

OUT3 11 O Constant current output
OUT4 12 O Constant current output
OUT5 13 O Constant current output
OUT6 15 O Constant current output
OUT7 16 O Constant current output
OUT8 17 O Constant current output
OUT9 18 O Constant current output
OUT10 20 O Constant current output
OUT11 21 O Constant current output
OUT12 22 O Constant current output
OUT13 23 O Constant current output
OUT14 25 O Constant current output
OUT15 26 O Constant current output

PGND Power ground

SCLK 4 I
SIN 5 I Data input of serial I/F

SOUT 28 O Data output of serial I/F
VCC 32 Power supply voltage
NC 29 – Not Connected

XLAT 3 I

6, 9, 14,,,

19, 24, 27

I/O DESCRIPTION

Data shift clock. Note that the internal connections are switched by MODE (pin #30). At
SCLK↑, the shift-registers selected by MODE shift the data.

Data latch. Note that the internal connections are switched by MODE (pin #30). At XLAT↑, the
latches selected by MODE get new data.

TLC5922

SLVS486A–SEPTEMBER 2003–REVISED MARCH 2005

PIN EQUIVALENT INPUT AND OUTPUT SCHEMATIC DIAGRAMS

(Note: Resistor values are equivalent resistance and not tested).

Figure 2. Input Equivalent Circuit (BLANK, XLAT, SCLK, SIN, MODE)

Figure 3. Output Equivalent Circuit

5