TS19450CSRLG datasheet(3/10 Pages) TSC

No de pièce	TS19450CSRLG

Description	AC/DC WLED Driver with External MOSFET Universal High Brightness

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Fabricant	TSC [Taiwan Semiconductor Company, Ltd]

Site Internet	http://www.taiwansemi.com

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TS19450

Taiwan Semiconductor

Document Number: DS_P0000187

3

Version: B15

ELECTRICAL SPECIFICATIONS (T

A= 25

oC, V

IN= 12V, unless otherwise noted)

(Note 4)

PARAMETER

SYMBOL

CONDITION

MIN

TYP

MAX

UNIT

Current Sense Comparator

Current Sense Pull-in Threshold

Voltage

VCSTH

-40ºC < TA < +85ºC

225

250

275

mV

TA < +125ºC

213

250

287

Offset Voltage for LD

Comparator

VOFFSET

-12

--

12

mV

Current Sense Blanking Interval

TBLANK

VLD=VDD , VCS=0.55VLD

150

215

280

ns

Delay to Output

TDELAY

VIN=12V, VLD=0.15V,

VCS=0~0.22V after

TBLANK

--

300

ns

Oscillator

Oscillator Frequency

fOSC

RT=1MΩ

20

25

30

kHz

RT=223kΩ

80

100

120

Max. Oscillator PWM Duty Cycle

DMAX

F=25kHz at Gate, CS to

GND

--

100

%

Gate Driver

Gate Sourcing Current

ISOURCE

VGATE=0V, VDD=7.5V

165

--

mA

Gate Sinking Current

ISINK

VGATE=VDD, VDD=7.5V

165

--

mA

Gate High Output Voltage

VGATE(HI)

IOUT=-10mA

VDD-

0.3

--

VDD

V

Gate Low Output Voltage

VGATE(LO)

IOUT=10mA

0

--

0.3

V

Gate Output Rise Time

TRISE

CGATE=500pF, 10%~90%

VGATE

--

30

50

ns

Gate Output Fall Time

TFALL

CGATE=500pF, 90%~10%

VGATE

--

30

50

ns

Note:

1.

Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These

are for stress ratings. Functional operation of the device at these or any other conditions beyond those

indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating

conditions for extended periods may remain possibility to affect device reliability.

2.

Limited by package power dissipation, whichever is lower.

3.

Thermal Resistance is specified with the component mounted on a low effective thermal conductivity test board

in free air at TA=25°C.

4.

Denotes the specifications which apply over the full operating ambient temperature range of -40ºC<TA<+125ºC.

5.

VDD load current external to the TS19450.

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