TS19451 datasheet(2/7 Pages) TSC

No de pièce	TS19451

Description	AC/DC WLED Driver with Internal MOSFET Universal Switch Mode

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Fabricant	TSC [Taiwan Semiconductor Company, Ltd]

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TS19451

AC/DC WLED Driver with Internal MOSFET

Universal Switch Mode

2/7

Version: B11

Electrical Specifications (Ta = 25

oC, V

DRAIN= 50V, unless otherwise noted)

Function Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

Internal Regulator

Internally Regulated Voltage

VDD

--

7.5

--

V

Drain Supply Voltage

VDRAIN

--

20

--

V

Undervoltage Lockout Threshold

UVLO

4.0

--

V

Undervoltage Lockout Hysteresis

∆UVLO

--

200

--

mV

Supply Current

IDD

VDD(EXT)=8.5V, VDRAIN=40V

--

200

350

µA

Output (Drain)

Breakdown Voltage

VBR

475

--

V

On Resistance

RDSON

IDRAIN=50mA

--

210

Output Capacitance

CDRAIN

VDRAIN=400V

--

1.0

5.0

pF

MOSFET Saturation current

ISAT

100

150

--

mA

Current Sense Comparator

Threshold Current

ITH

49

--

63

mA

Leading edge Blanking delay

TBLANK

200

300

400

nS

Minimum Turn On-Time

TON(MIN)

--

650

nS

Off-Time Generator

Turn On-Time

TOFF

8

10.5

13

µS

Note 1: The specification which apply over the full operating ambient temperature range of -40ºC<TA<+85ºC

2: Guaranteed by design

Block Diagram

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