NCP5008(2003) 데이터 시트보기 (PDF) - ON Semiconductor

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NCP5008
(Rev.:2003)

Backlight LED Boost Driver

ON Semiconductor 

NCP5008, NCP5009

BACK LIGHT WHITE LED CURRENT DRIVE CONTROLLER

BandGap

POR

POR

Vbat

Vbat

10 Vbat

VBIAS 4

CLK 5

CS 3

Vbat

Vbat

Q2

POR

LOCAL 6

Iref 1

PHOTO 2

(See Note)

Vbat

+

Iout Reference

Isense

Vbat +

A=10

GND

9 L1

Vbat

Q1

CONTROLLER

Iout

8 L2

GND

7 GND

Vbat_OK

Vbat

BANDGAP

REFERENCE

BandGap

GND

NOTE: This functionality is NOT implemented on the NCP5008 type.

Figure 2. Block Diagram

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2

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