LED171596ARSLR datasheet(6/153 Pages) TI1

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LED171596A

SNVSAY2 – OCTOBER 2017

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(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report.

6.4 Thermal Information

THERMAL METRIC(1)

LED171596A

RSL (VQFN)

UNIT

48 PINS

RθJA

Junction-to-ambient thermal resistance

30.2

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

15.9

°C/W

RθJB

Junction-to-board thermal resistance

5.1

°C/W

ΨθJT

Junction-to-top characterization parameter

0.2

°C/W

ΨθJB

Junction-to-board characterization parameter

5.0

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

1.2

°C/W

6.5 Electrical Characteristics

Limits apply over the full ambient temperature range –40°C < TA < +85°C. Unless otherwise specified: VDD = 3.3 V, VDDIO =

3.3 VLED = 5 V, ILED_PK = 60 mA, CVLED = 10 µF, CVDD = 1 µF.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

GENERAL

VDD

VDD supply votage

Start-up

3.3

3.5

Normal Operation

2.9

3.3

3.5

VDD IQ

Shutdown mode current

EN = L,

Standby mode current

EN = H, LEDs drivers disabled

Normal mode current

EN = H, 20-mA peak per LED, 100% duty

EN = H, 60-mA peak per LED, 100% duty

160

VDDPOR

VDD power-on reset

threshold

VDD rising, POR releases

2.81

2.88

2.95

VDD falling, POR activates

2.71

2.78

2.85

TTSD

Thermal shutdown

threshold

150

°C

TTSD_THR

Thermal shutdown

hysteresis

°C

VDDIO

VDDIO supply voltage

1.65

1.8/3.3

3.5

VDDIO IQ

VDDIO supply current

Serial interface idle

µA

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