FAN5608DHMPX datasheet(8/13 Pages) FAIRCHILD

부품명	FAN5608DHMPX

상세설명	Serial / Parallel LED Driver with Current-Regulated, Step-Up DC/DC Converter

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FAN5608 Rev. 1.0.5 • 8/8/06

8

Typical Characteristics

TA=25C, VBAT = 3.6V, unless otherwise specified.

Figure 11. Peak power efficiency

Figure 12. PWM Dimming

Startup Response

VIN=3.6V, L=6.8uH, COUT=4.7uF, 3-LEDs/CH

Tim e 200µS/Div

Figure 13. Startup Response

Design and Component Selection Guidelines

Inductor Selection

The inductor is one of the main components required by

the boost converter to store energy. The amount of

energy stored in the inductor and transferred to the load

is controlled by the regulator, using pulse-frequency

modulation (PFM) and pulse-skipping techniques. In most

cases, the FAN5608 operates in discontinuous conduction

mode, resulting in higher inductor current ripple.

To ensure proper operation of the current regulator over

the entire range of conditions, select the inductor based

on the maximum output power (POUT) and the minimum

input voltage (VIN):

OUT

IN

P

T

V

L

×

≤

2

)

(

EQ 6

where units of L, VIN, and POUT are in μH, Volt, and Watt,

respectively and T = 0.4μs is a factor depending upon

the

FAN5608

internal

architecture.

The

above

relationship is applicable up to POUT = 0.8W and

H

L

μ

2

.

2

≥

. At lower inductor values, the efficiency

유사한 부품 번호 - FAN5608DHMPX

제조업체	부품명	데이터시트	상세설명
Fairchild Semiconductor	FAN5608DHMPX	206Kb / 17P	Serial/Parallel LED Driver with Current-Regulated, Step-Up DC/DC Converter

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제조업체	부품명	데이터시트	상세설명
Fairchild Semiconductor	FAN5608	206Kb / 17P	Serial/Parallel LED Driver with Current-Regulated, Step-Up DC/DC Converter
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YOBON TECHNOLOGIES,INC.	YB1508	774Kb / 7P	Step-up DC-DC Converter , White LED Driver
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FAN5608DHMPX 데이터시트(PDF) 8 Page - Fairchild Semiconductor

FAN5608DHMPX 데이터시트(HTML) 8 Page - Fairchild Semiconductor

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