TLC5958RTQR datasheet(6/28 Pages) TI1

Part #	TLC5958RTQR

Description	TLC5958 48-Channel, 16-Bit ES-PWM LED Driver with Pre-Charge FET, LED Open Detection and Display Data Memory Support 32-Multiplexing

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Manufacturer	TI1 [Texas Instruments]

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TLC5958

SLVSCE7A – MAY 2014 – REVISED SEPTEMBER 2014

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Recommended Operating Conditions (continued)

At TA = –40°C to +85°C, unless otherwise noted

MIN

NOM

MAX

UNIT

AC CHARACTERISTICS, VCC=3V to 5.5V(1)

FCLK(SCLK)

Data shift clock frequency

SCLK

25

MHz

FCLK(GCLK)

Grayscale control clock frequency

GCLK

33

MHz

tWH0

SCLK

10

tWL0

SCLK

10

Pulse duration

ns

tWH1

GCLK

15

tWL1

GCLK

10

tSU0

SIN - SCLK

↑

2

tSU1

LAT

↑ - SCLK↑

3

LAT

↓ - SCLK↑

5

ns

tSU2

LAT

↓ - SCLK↑, for READSID, READFC1,

50

and READFC2

Setup time

tSU3

LAT

↓ (Vsync command) - GCLK↑

2500

The last LAT

↓ for no all ‘0’ data latching to

tSU4

resume normal mode – GCLK

↑,

50

µS

PSAVE_ENA bit = ‘1b’

tSU5

The last GCLK

↑ - the 1st GCLK↑ of next line

20

ns

tH0

SCLK

↑ - SIN

2

tH1

Hold time

SCLK

↑ - LAT↑

2

ns

tH2

SCLK

↑ - LAT↓

13

(1)

Specified by design

8.4 Thermal Information

TLC5958

THERMAL METRIC(1)

RTQ

UNIT

56 PINS

RθJA

Junction-to-ambient thermal resistance

27.4

RθJC(top)

Junction-to-case (top) thermal resistance

13.6

RθJB

Junction-to-board thermal resistance

5.5

°C/W

ψJT

Junction-to-top characterization parameter

0.2

ψJB

Junction-to-board characterization parameter

5.5

RθJC(bot)

Junction-to-case (bottom) thermal resistance

0.8

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

6

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