TPS92010D datasheet(4/19 Pages) TI

No de pièce	TPS92010D

Description	8-PIN HIGH-EFFICIENCY, OFFLINE LED LIGHTING CONTROLLER

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Fabricant	TI [Texas Instruments]

Site Internet	http://www.ti.com

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4 / 19 page

TPS92010

SLUSA14 – DECEMBER 2009

www.ti.com

ELECTRICAL CHARACTERISTICS (continued)

VDD = 15 V, 0.1-

μF capacitor from VDD to GND, 3.3-nF capacitor from SS to GND charged over 3.5 V, 500-Ω resistor from

VSD to -0.1 V, FB = 4.8 V, LPM = not connected, 1-nF capacitor from GD to GND, PCS = GND, TA = –40°C to 105°C,

(unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POWER LIMIT (PL)(2)

IPL(Pcs)

PCS current

IVSD = -300 μA

–165

–150

–135

μA

PCS working range

QR mode, peak PCS voltage

0.70

0.81

0.92

V

VPL

PL threshold

Peak CS voltage + PCS offset

1.05

1.20

1.37

SOFT START (SS)

ISS(chg)

Softstart charge current

VSS = GND

–8.3

–6.0

–4.5

μA

ISS(dis)

Softstart discharge current

VSS = 0.5 V

2.0

5.0

10

mA

VSS

Switching ON threshold

Output switching start

0.8

1.0

1.2

V

VALLEY SWITCHING DETECT (VSD)

IVSD(line)

Valley switching detect

IVSD threshold, GD = HI

–512

–450

–370

μA

VFB = 4.8 V, VSS = 5.0 V,

VVSD(on)

VSD voltage at OUT = HIGH

–125

–25

mV

IVSD(on), = –300 μA

VVSD(load)

Load overvoltage protection

VVSD threshold, GD = LO

3.37

3.75

4.13

V

THERMAL PROTECTION (TSP)(3)

Thermal shutdown (TSP) temperature

140

°C

Thermal shutdown hysteresis

15

GATE DRIVE

tRISE

Rise time

10% to 90% of 13 V typical out clamp

50

75

ns

tFALL

Fall time

10

20

(2)

RPCST and CPCST are not connected in the circuit for maximum and minimum duty cycle tests, current sense tests and power limit tests.

(3)

Specified by design. Not production tested.

4

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