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SP6687ER1-L Datasheet

  • SP6687ER1-L

  • 4 Channel Charge Pump White LED Driver

  • 12頁

  • SIPEX

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廬
SP6687
4 Channel Charge Pump White LED Driver
GND
C2N
10
C2P
FEATURES
鈻?/div>
High Efficiency > 90%
鈻?/div>
Support up to 4 White LEDs with current
matching
鈻?/div>
Three Charge Pump Modes: X1, X1.5, X2
鈻?/div>
Soft Start Function
鈻?/div>
Short Circuit Protection
鈻?/div>
Output Overvoltage Protection
鈻?/div>
Thermal Shutdown
鈻?/div>
Programmable LED drive capability
鈻?/div>
PWM Dimming Control
鈻?/div>
1MHz Fixed Frequency Oscillator
鈻?/div>
Low 1
碌
A Shutdown Current
鈻?/div>
Pin Compatible with SC604
12
LED4
LED3
LED2
LED1
13
14
15
16
1
11
C1N
9
8
C1P
VIN
VOUT
ISET
7
6
5
4
SP6687
16 Pin QFN
2
3
CTRL0
CTRL1
Pin 1
Orientation
Now Available in Lead-Free Packaging
APPLICATIONS
鈻?/div>
Mobile phones
鈻?/div>
White LED Backlighting
鈻?/div>
Camera Flash LED lighting
DESCRIPTION
The SP6687 is a compact, highly efficient and highly integrated 4 channel charge pump white LED
driver. It can support from 1 to 4 White LEDs and is optimized for Li-Ion battery applications.
Current matching allows all 4 LEDs to maintain consistent brightness. Users can control White
LEDs by three programming bits. Each channel can support up to 30mA of current. This device
is available in a 4mm x 4mm, 16 pin QFN package.
TYPICAL APPLICATION CIRCUIT
C1 1碌F
8
7
C
IN
1碌F
2 CTRL0
3
4
5
R
SET
CTRL1
CTRL2
I
SET
GND
12
1
V
IN
EN
C1P
9
C1N
11
C2 1碌F
10
C2N
V
OUT
6
C2P
廬
Li-ion
Battery
SP6687
CTRL2
EN
LED1 16
LED2 15
LED3
LED4
14
13
C
OUT
1碌F
Typical Application Circuit for 4-White LEDs
Date: 11/15/05
SP6687 4Channel Charge Pump White LED Driver
漏 Copyright 2005 Sipex Corporation
1

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