UCC25710 datasheet(5/34 Pages) TI1

Part #	UCC25710

Description	LLC Half-Bridge Controller For Multi-String LED Lighting

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Manufacturer	TI1 [Texas Instruments]

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UCC25710

www.ti.com

SLUSAD7A

– APRIL 2011 – REVISED MAY 2011

ELECTRICAL CHARACTERISTICS (continued)

TA = -40°C to 125°C, TA = TJ, VVCC = 12 V, VBLON = 3 V, VUV = 3 V, VOV = 2 , VCL = 0 V, RMIN = 100 kΩ, RMAX = 4.99 kΩ,

(unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

Gate Drivers

VGDHI

GD1, GD2 VOUT high

IGD1, IGD2 = -20 mA, below VCC

1.8

3.0

V

RGDHSRES

GD1, GD2 on-resistance high

IGD1, IGD2 = -20 mA

14

30

Ω

VGDLO

GD1, GD2 VOUT low

IGD1, IGD2 = 20 mA

0.08

0.20

V

RGDLSRES

GD1, GD2 on-resistance low

IGD1, IGD2 = 20 mA

4

10

Ω

TGDRISE

GD1, GD2 output rise time

CGD = 1 nF, 1 V to 9 V

25

35

ns

TGDFALL

GD1, GD2 output fall time

CGD = 1 nF, 9 V to 1 V

20

30

Under-Voltage Protection

VUVTH

Under-voltage threshold

High-to-low on UV input

2.27

2.40

2.53

V

Under-voltage threshold

VUVHY

190

240

300

mV

hysteresis

IUV

UV input bias current

VUV = 2.7 V

-0.25

0.25

µA

Over-Voltage Protection

VOVTH

Over-voltage threshold

Low-to-high on OV input

2.46

2.60

2.74

V

Over-voltage threshold

VOVHY

190

240

300

mV

hysteresis

IOV

OV input bias current

VOV = 2.3 V

-0.25

0.25

µA

Current Limit Protection

VCLTH

Current limit threshold

Low-to-high on CL input

0.90

0.95

1.00

V

Current limit threshold

VCLHY

375

475

525

mV

hysteresis

Current limit latching

VCLLTH

Low-to-high on CL input

1.75

1.90

2.05

V

threshold

ICL

CL input bias current

VCL = 2.2 V

-0.25

0.25

µA

Thermal Shutdown

Junction temperature at

tTSD

Temperature rising

135

160

185

thermal shutdown

°C

tHYS

Thermal hysteresis

25

45

Backlight On Input

RBLON

RBLON pull-down resistance

Pull down to GND

100

200

350

k

Ω

VBLON

Enable threshold

0.8

1.2

1.6

V

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