FAN5345 View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

Manufacturer

FAN5345

Series Boost LED Driver with Single-Wire Digital Interface

Fairchild Semiconductor 

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above

the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended

exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings

are stress ratings only.

Symbol

Parameter

VIN VIN Pin

VFB, VEN FB, EN Pins

VSW SW Pin

FAN5345S20X

FAN5345X30X

VOUT VOUT Pin

FAN5345S20X

FAN5345X30X

ESD

Human Body Model per JESD22-A114

Electrostatic Discharge Protection

Charged Device Model per JESD22-C101

TJ

TSTG

Junction Temperature

Storage Temperature

TL Lead Soldering Temperature, 10 Seconds

Min. Max.

-0.3

6.0

-0.3 VIN + 0.3

-0.3

22.0

-0.3

33.0

–0.3

22.0

-0.3

33.0

1.5

1.5

-40

+150

-65

+150

+260

Unit

V

V

V

V

V

V

kV

°C

°C

°C

Recommended Operating Conditions

The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating

conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding

them or designing to absolute maximum ratings.

Symbol

Parameter

Comments

Min. Max. Unit

VIN

VOUT

VIN Supply Voltage

VOUT Voltage(1)

FAN5345S20X

FAN5345S30X

2.5

5.5

V

6.2

18.5

V

6.2

28.5

IOUT VOUT Load Current

5

25

mA

TA

Ambient Temperature

TJ

Junction Temperature

-40

+85

°C

-40

+125

°C

Note:

1. The application should guarantee that minimum and maximum duty cycle should fall between 20-85% to meet the

specified range.

Thermal Properties

Junction-to-ambient thermal resistance is a function of application and board layout. This data is measured with four-layer 2s2p

boards in accordance to JEDEC standard JESD51. Special attention must be paid not to exceed junction temperature TJ(max) at a

given ambient temperature TA.

Symbol

Parameter

JA6

Junction-to-Ambient Thermal Resistance, SSOT23-6 Package

Typical Unit

151

°C/W

© 2011 Fairchild Semiconductor Corporation

FAN5345 • Rev. 1.0.0

4

www.fairchildsemi.com

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