TLC5929DBQ datasheet(4/43 Pages) TI1

Part #	TLC5929DBQ

Description	16-Channel, Constant-Current LED Driver with 7-Bit Global Brightness Control, Power-Save Mode, and Full Self-Diagnosis for LED Lamp

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Manufacturer	TI1 [Texas Instruments]

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I

=54.8

´

OLC(IDEAL)

1.205

R

IREF

D

(%)= 100

´

IdealOutputCurrent

-

(IdealOutputCurrent)

(I

+I

+...I

+I

)

OLC(0)

OLC(1)

OLC(14)

OLC(15)

16

D

(%)= 100

´

-

1

I

OLC( )

n

(I

+I

+...+I

+I

)

OLC(0)

OLC(1)

OLC(15)

OLC(14)

16

.

TLC5929

SBVS159B – APRIL 2011 – REVISED JULY 2012

www.ti.com

ELECTRICAL CHARACTERISTICS

At VCC = 3 V to 5.5 V and TA = –40°C to +85°C. Typical values at VCC = 3.3 V and TA = +25°C, unless otherwise noted.

TLC5929

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOH

High-level output voltage

IOH = –2 mA at SOUT

VCC – 0.4

VCC

V

VOL

Low-level output voltage

IOL = 2 mA at SOUT

0.4

V

VLOD

LED open detection threshold

All OUTn = on

0.25

0.30

0.35

V

VLSD0

All OUTn = on, detection voltage code = 0h

0.32 × VCC

0.35 × VCC

0.38 × VCC

V

VLSD1

All OUTn = on, detection voltage code = 1h

0.42 × VCC

0.45 × VCC

0.48 × VCC

V

LED short detection threshold

VLSD2

All OUTn = on, detection voltage code = 2h

0.52 × VCC

0.55 × VCC

0.58 × VCC

V

VLSD3

All OUTn = on, detection voltage code = 3h

0.62 × VCC

0.65 × VCC

0.68 × VCC

V

VIREF

Reference voltage output

RIREF = 1.3 kΩ

1.175

1.205

1.235

V

IIN

Input current

VIN = VCC or GND at SIN, SCLK, LAT, and BLANK

–1

1

μA

SIN/SCLK/LAT = low, BLANK = high, all OUTn = off,

ICC0

2

3

mA

VOUTn = 0.8 V, BC = 7Fh, RIREF = open

SIN/SCLK/LAT = low, BLANK = high, all OUTn = off,

ICC1

VOUTn = 0.8 V, BC = 7Fh, RIREF = 3.6 kΩ

5

7

mA

(IOUT = 18.3 mA target)

SIN/SCLK/LAT/BLANK = low, All OUTn = on,

ICC2

VOUTn = 0.8 V, BC = 7Fh, RIREF = 3.6 kΩ

5

7

mA

(IOUT = 18.3 mA target)

SIN/SCLK/LAT/BLANK = low, All OUTn = on,

Supply current (VCC)

ICC3

VOUTn = 0.8 V, BC = 7Fh, RIREF = 1.6 kΩ

9

11

mA

(IOUT = 41.3 mA target)

VCC = 5.0 V, SIN/SCLK/LAT/BLANK = low,

ICC4

All OUTn = on, VOUTn = 0.8 V, BC = 7Fh,

11

14

mA

RIREF = 1.3 kΩ (IOUT = 50.8 mA target)

VCC = 5.0 V, SIN/SCLK/LAT/BLANK = low,

All OUTn = on, VOUTn = 0.8 V, BC = 7Fh, RIREF = 1.3

ICC5

10

40

µA

k

Ω (IOUT = 50.8 mA target), all output data off with

power-save mode enabled

All OUTn = on, VOUTn = VOUTfix = 0.8 V, BC = 7Fh,

IOLC0

38.5

41.3

44.1

mA

RIREF = 1.6 kΩ

Constant output sink current

(OUT0 to OUT15, see Figure 3)

VCC = 5.0 V, All OUTn = on, VOUTn = VOUTfix = 1 V,

IOLC1

47.3

50.8

54.3

mA

BC = 7Fh, RIREF = 1.3 kΩ

IOLKG0

TJ = +25°C

0.1

μA

Output leakage current

BLANK = high, VOUTn = VOUTfix =

IOLKG1

TJ = +85°C

(1)

0.2

μA

(OUT0 to OUT15, see Figure 3)

10 V, RIREF = 1.6 kΩ

IOLKG2

TJ = +125°C

(1)

0.3

0.8

μA

Constant-current error

All OUTn = on, VOUTn = VOUTfix = 0.8 V, BC = 7Fh,

ΔIOLC0

(channel-to-channel, OUT0 to

±1

±3

%

RIREF = 1.6 kΩ, TA = +25°C

OUT15)(2)

Constant-current error

All OUTn = on, VOUTn = VOUTfix = 0.8 V, BC = 7Fh,

ΔIOLC1

(device-to-devicel, OUT0 to

±2

±4

%

RIREF = 1.6 kΩ, TA = +25°C

OUT15)(3)

(1)

Not tested; specified by design.

(2)

The deviation of each output from the average of OUT0 to OUT15 constant-current. Deviation is calculated by the formula:

(3)

The deviation of the OUT0 to OUT15 constant-current average from the ideal constant-current value. Deviation is calculated by the

formula:

Ideal current is calculated by the formula:

4

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