TLC6946 datasheet(8/35 Pages) TI1

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IOUTn at VOUTn

100

IOUTn at VOUTn

IOUTn at VCC

5.5V

IOUTn at VCC

100

IOUTn at VCC

5.5V

IREF

Ideal Output mA

Gain

144

· §

u ¨

¸ ©

IOUT0 IOUT1 ... IOUT14 IOUT15

Ideal Output Current

100

Ideal Output Current

TLC6946, TLC6948

SLVSEB3A – JUNE 2018 – REVISED JANUARY 2019

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Product Folder Links: TLC6946 TLC6948

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Electrical Characteristics (continued)

VCC = 3 V to 5.5 V and TA = –40°C to 85°C; typical values are at VCC = VLED = 3.5 V, TA = 25°C, over recommended operating

conditions (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

(2)

The deviation of the average of constant current from the ideal constant current value.

,Ideal current is calculated by the

following equation

(3)

Line regulation is calculated by the following equation

(4)

Load regulation is calculated by the following equation

(5)

Specified by design

ΔIOLC1

Constant-current error (device-to-

device)(2)

All OUTn = on, BC = 00h,VOUTn = 1

V, RIREF = 10.7 kΩ (IOUTn = 0.3-mA

target), TA = 25°C, includes the

VIREF tolerance

±1%

±2%

ΔIOLC2

Constant-current error (channel-to-

channel)(1)

All OUTn = on, BC = 2Ah,VOUTn = 1

V, RIREF = 10.7 kΩ (IOUTn = 1-mA

target), TA = 25°C, includes the

VIREF tolerance

±1%

±3%

ΔIOLC3

Constant-current error (device-to-

device)(2)

All OUTn = on, BC = 2Ah,VOUTn = 1

V, RIREF = 10.7 kΩ (IOUTn = 1-mA

target), TA = 25°C, includes the

VIREF tolerance

±1%

±2.5%

ΔIOLC4

Constant-current error (channel-to-

channel)(1)

All OUTn = on, BC = 36h,VOUTn = 1

V, RIREF = 1.27 kΩ (IOUTn = 10-mA

target), TA = 25°C, includes the

VIREF tolerance

±1%

±2.5%

ΔIOLC5

Constant-current error (device-to-

device)(2)

All OUTn = on, BC = 36h,VOUTn = 1

V, RIREF = 1.27 kΩ (IOUTn = 10-mA

target), TA = 25°C, includes the

VIREF tolerance

±1%

±2.5%

ΔIOLC6

Constant-current error (channel-to-

channel)(1)

All OUTn = on, BC = 7Eh,VOUTn = 1

V, RIREF = 1.02 kΩ (IOUTn = 25-mA

target), TA = 25°C, includes the

VIREF tolerance

±1%

±2%

ΔIOLC7

Constant-current error (device-to-

device)(2)

All OUTn = on, BC = 7Eh,VOUTn = 1

V, RIREF = 1.02 kΩ (IOUTn = 25-mA

target), TA = 25°C, includes the

VIREF tolerance

±1%

±2%

ΔIOLC8

Line regulation(3)

All OUTn = on, VCC = 3 V to 5.5 V,

VOUTn = 1 V

±1

±2

%/V

ΔIOLC9

Load regulation(4)

All OUTn = on, VOUTn = 1 V to 3 V

±1

±2

%/V

VIL(ISP)

IREF resistor short-protection enter

threshold

0.15

0.195

VIH(ISP)

IREF resistor short-protection

release threshold

0.325

0.4

T(TSD)

Thermal shutdown threshold(5)

170

°C

T(HYS)

Thermal shutdown hysteresis(5)

°C

SCLK or SIN Input current

VI = VCC or GND at SCLK or SIN

–1

µA

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