TB62731FU Ver la hoja de datos (PDF) - Marktech Optoelectronics

Número de pieza

componentes Descripción

Fabricante

TB62731FU

Step up DC-DC converter for LEDs

Marktech Optoelectronics 

TOSHIBA

Absolute Maximum Ratings (Ta = 25°C)

PARAMETER

Power Supply Voltage

Input Voltage

Anode Current

Anode Voltage

SYMBOL

VCC

VIN

I(A)

V(A)

Power Dissipation

Pd

Saturated Thermal Resistance

Operating Temperature Range

Storage Temperature Range

Junction Temperature

Rth(j-a)1

Rth(j-a)1

Topr

Tstg

Tj

RATING

-0.3 ~ +6.0

-0.3 ~ VCC+0.3V

300

-0.3~+30

0.41

0.47

300

260*1

-40 ~ 85

ȍ40 ~ +150

+125

UNIT

V

V

mA

V

W

°C/W

°C

°C

°C

TB62731FU

<Note>

*1: Derate 3.8mW/°C above +25°C

Electrical Characteristics

(VCC=3.0V~5.5V, Ta = +25°C, unless otherwise specified.)

PARAMETER

SYMBOL

TEST CONDITION

Supply Voltage

VCC

Supply Current

ICC(ON) VCC=3.6V

Quiescent Current

ICC(SHDN) SHDN=GND

SHDN Input Current

I_SHDN SHDN=VCC

Internal MOSFET

ON-Resistance

Ron

I(A)=220mA or less,

including R_lim

Anode Voltage

V(A)

Anode Current

I(A)

Anode Leak Current

IOZ(A)

SHDN=GND

LED Current (average)

Io(K)

R_sens=1.8 ohm

Derating Function

Start Temperature

Tder

Io(K)=20mA,

Ta=25°C

MIN.

3.0

TYP.

600

4.2

MAX.

5.5

900

0.5

7

UNIT

V

uA

uA

uA

2.0 2.5 ohm

30

V

220

mA

0.5

1

uA

18*1 20*1 22*1 mA

(45)*2

°C

<Note>

*1: See figure of “LED current vs. Feedback resistance”

*2: The specification in parenthesis is not tested. For design purpose, current derating should

be considered to start at Tj=45°C.

Available from:

Marktech Optoelectronics

120 Broadway • Menands, NY 12203

800.984.5337 FAX: 518.432.7454

Website: www.marktechopto.com

Email: info@marktechopto.com

The information contained herein is subject to change without notice.

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