T6335A-150AXG中文资料

TE

CH tm

T6335A

Constant Current Regulator

FEATURES

? Constant Current Regulator ? Constant Current Option :

150/210/225/240/260/280/300/320/350 mA ? Low Dropout Voltage

? Low 0.1 uA Shutdown Supply Current ? SOT-89 and TO-252 lead-free Package ? ESD Human Body Mode Over 5KV ? 2.7V to 5V Supply Voltage Range ? Build in Thermal Protect 160 °C

APPLICATIONS

? Flash Light ? Lighting

? Portable Communication Devices ? Handheld Electronics ? DC/DC LED driver

TYPICAL APPLICATION CIRCUITS

V IN GENERAL DESCRIPTION

The T6335A low-dropout bias supply for white LED is a high-performance used in conventional white LED designs.

The T6335A has lower bias variation with supply voltage variation, significantly lower dropout voltage Low Shutdown Current in some applications, significantly improved efficiency from DC 2.7V to 5V. The T6335A is available in SOT-89 and TO-252 lead-free package.

PART NUMBER EXAMPLES

PIN ARRANGEMENT (Top view)

SOT-89 TO-252

G N D

V D D

O U T

G N D

V D D

O U T

Part no.

Current Package type T6335A-350AXG 350mA SOT-89 T6335A-350AWG

350mA TO-252

T6335A-150AXG

150mA SOT-89 T6335A-150AWG 150mA TO-252

PIN DESCRIPTION

SYMBOL Pin no.

DESCRIPTION

OUT 1 LED Cathode Connection. VSS 2 Ground VDD 3 Power supply

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol Value Unit Voltage on any pin relative to GND V IN -0.3 to 6 V Operating Temperature Rang

T A -40 to +85 °C Maximum Soldering Temperature (at leads, 10 sec) T LEAD 300 °C

Storage Temperature Rang

T S

-65 to +150

°C

Continuous Power Dissipation ( T A = +70°C )

1 W

Electrical Characteristics

(Typical values are at TA =25°C)

Symbol Description Conditions Min. Typ. Max Unit

V DD

Operating voltage range

VDD is power supply input

2.7

5

V

T6335A-350 329 350 371 mA T6335A-320 300 320 339 mA

T6335A-300 282 300 318 mA

T6335A-280 263 280 296 mA T6335A-260 244 260 275 mA T6335A-240 225 240 254 mA T6335A-225 211 225 238 mA T6335A-210 197 210 222 mA I LED

Maximum LED sink current

VDD = 4.5V VLED =3.5V

T6335A-150 141 150 159 mA

T TP Thermat Protect 160 °C I LSD

LED leakage current in shutdown VDD = GND, VLED = 5V

0.2 1 uA

Typical Operating Characteristics

Test Circuit

VDD VS. Iout Curve

PACKAGE DIMENSIONS SOT-89

TO-252

Dimension in mm Symbol

Min. Max.

A 1.40 1.60

B 0.44 0.56

B1 0.36 0.48

C 0.35 0.44

D 4.40 4.60

D1 1.35 1.83

E 2.29 2.60

H 3.94 4.25

e 1.50

BSC e1 3.00

BSC L 0.89 1.2

Dimension in inch

Symbol

Min. Max.

A 0.086 0.094

A1 0.040 0.050

b 0.024

TYP.

b2 0.205 0.215

c 0.018 0.023

c1 0.018 0.023

D 0.210 0.220

E 0.250 0.265

D1 0.180 -

E1 0.150 -

e 0.090

BSC.

e1 0.180

BSC.

H 0.370 0.410

L 0.020 -

L1 0.025 0.040

L2 0.060 0.080