TLC59291_16 Datasheet, PDF(7/46 Page) Texas Instruments – 8/16-Channel, Constant Current LED Driver

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TLC59291_16 Datasheet, PDF (7/46 Pages) Texas Instruments – 8/16-Channel, Constant Current LED Driver

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TLC59291

SLVSA96A â SEPTEMBER 2015 â REVISED MARCH 2016

Electrical Characteristics (continued)

At VCC = 3 V to 5.5 V and TA = â40Â°C to 85Â°C. Typical values at VCC = 3.3 V and TA = 25Â°C, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

ÎIO(LC0)

Constant-current error

(channel-to-channel, OUT0 to

OUT15) (2)

All OUTn = on, VOUTn = VOUTfix = 0.8 V, BC = 0Eh,

RIREF = 3.6 kâ¦, TA = 25Â°C

Â±3%

Â±6%

ÎIOL(C1)

Constant-current error

(device-to-device, OUT0 to

OUT15) (3)

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

RIREF = 1.6 kâ¦, TA = 25Â°C

Â±1%

Â±3%

ÎIOL(C2)

ÎIOL(C3)

TTEF

THYS

TPTW

Line regulation(4)

Load regulation(5)

Thermal error flag threshold

Thermal error flag hysteresis

Pre-thermal warning threshold

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

RIREF = 1.6 kâ¦

All OUTn = on, VOUTn = 0.8 V to 3 V, VOUTfix = 0.8 V,

BC = 7Fh, RIREF = 1.6 kâ¦

Junction temperature(1)

Â±0.1

Â±1

Â±0.5

Â±3

150

165

180

125

138

150

UNIT

%/V

Â°C

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

Ã©

Ã¹

Ãª

Ãº

( ) D

(%) = 100 x

Ãª

Ã«

Ã©

Ãª

ÃªÃ«

IOLC(n)

IOLC(0)+ IOLC(1)+...+ IOLC(14)+ IOLC(15)

Ã¹

Ãº

ÃºÃ»

Ãº

- 1ÃºÃº

Ãº

Ã».

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

formula:

( ) Ã©Ã©

ÃªÃª

IOLC(0)+ IOLC(1)+...+ IOLC(14)+ IOLC(15)

Ã¹

Ãº

Ã¹

Ãº

(%) = 100 x

Ãª

ÃªÃ«

Ãª

Ideal Output Current

ÃºÃ»

(Ideal

Output

Ãº

Current)ÃºÃº

Ãº

Ãª

Ãº

Ã«

Ã»

Ideal

current

calculated

the

formula:

IO(LC _ IDEAL)

Ã¦

Ã§

1.20

Ã¨ RIREF

Ã¶

Ã·

Ã¸

(4)

Line regulation is calculated by the formula:

( ( ) ( ) ) D (%) = 100 x

Ã©

Ãª

ÃªÃ«

IOLC(n) at VCC = 5.5 V

2.5 x IOLC(n)

IOLC(n) at VCC = 3 V

VCC = 3 V

Ã¹

Ãº

ÃºÃ»

(5)

Load regulation is calculated by the equation:

( ( ) ( ) ) D (%) = 100 x

Ã¦

Ã§

Ã§Ã¨

IOLC(n) at VOUTn = 3 V - IOLC(n) at VOUTn = 1 V

2 x IOLC(n) at VOUTn = 1 V

Ã¶

Ã·

Ã·Ã¸

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