TPS65708 datasheet(5/22 Pages) TI1

5 / 22 page

TPS65708

www.ti.com

SLVSAE1A

– OCTOBER 2010 – REVISED FEBRUARY 2011

ELECTRICAL CHARACTERISTICS (continued)

Unless otherwise noted: VIN1 = VIN2 = VCC = 5V, L = 1.5

µH, COUTDCDCx = 10µF, COUTLDOx = 2.2µF, TA = –40°C to 85°C.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

LED CURRENT SINK

Set internally by EEPROM to 7.5mA; available

Isink Current (LED current for 100% duty

ILED

current range from 7.5mA to 30mA; contact

7.5

cycle)

factory about default settings other than 7.5mA

Minimum voltage drop from ISINK to

at 7.5mA

≤ ISINK ≤ 20mA

0.4

AGND needed for proper regulation

Minimum voltage drop from ISINK to

at 20mA

< ISINK ≤ 30mA

0.55

AGND needed for proper regulation

ISINK accuracy

ISINK

≥ 10mA

–5%

ISINK accuracy

7.5mA

≤ ISINK < 10mA

–10%

10%

PWM duty cycle

100%

PWM frequency

kHz

VIH

High Level Input Voltage for PWM pin

ISINK is enabled

1.2

VCC

VIL

Low Level Input Voltage for PWM pin

ISINK is high resistive

0.4

Ilkg

Input Leakage Current on PWM pin

0.01

0.1

μA

V(ISINK) ≥ 0.4V for 7.5 mA ≤ ISINK ≤ 20mA; or

ISINK rise / fall time

500

V(ISINK) > 0.6V for 20mA < ISINK ≤ 30mA

ISINK rise / fall time

V(ISINK) ≤ 0.6V; 20mA < ISINK ≤ 30 mA

700

Submit Documentation Feedback

Product Folder Link(s) :TPS65708

TPS65708 датащи(PDF) 5 Page - Texas Instruments

TPS65708 датащи(HTML) 5 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

датащи скачать

ссылки URL