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SP6687 Fiches technique(PDF) 1 Page - Sipex Corporation

No de pièce SP6687
Description  4 Channel Charge Pump White LED Driver
Download  12 Pages
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Fabricant  SIPEX [Sipex Corporation]
Site Internet  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP6687 Fiches technique(HTML) 1 Page - Sipex Corporation

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Date: 11/15/05
SP6687 4Channel Charge Pump White LED Driver
© Copyright 2005 Sipex Corporation
SP6687
FEATURES
■ High Efficiency > 90%
■ Support up to 4 White LEDs with current
matching
■ Three Charge Pump Modes: X1, X1.5, X2
■ Soft Start Function
■ Short Circuit Protection
■ Output Overvoltage Protection
■ Thermal Shutdown
■ Programmable LED drive capability
■ PWM Dimming Control
■ 1MHz Fixed Frequency Oscillator
■ Low 1µA Shutdown Current
■ Pin Compatible with SC604
4 Channel Charge Pump White LED Driver
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
Now Available in Lead-Free Packaging
APPLICATIONS
■ Mobile phones
■ White LED Backlighting
■ Camera Flash LED lighting
Typical Application Circuit for 4-White LEDs
DESCRIPTION
VOUT
ISET
SP6687
16 Pin QFN
8
7
6
5
4
3
2
1
16
15
14
13
12
11
10
9
C1P
VIN
LED4
LED3
LED2
LED1
Pin 1
Orientation
EN
CTRL0
CTRL1
CTRL2
C1P
C1N
C2P
C2N
GND
LED1
LED2
LED3
LED4
Li-ion
Battery
C1 1µF
C2 1µF
2
1
3
4
5
6
7
89
10
11
12
13
14
15
16
SP6687
®
VIN
ISET
RSET
VOUT
COUT
1µF
CIN
1µF


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