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SP6683EU/TR Datasheet

  • SP6683EU/TR

  • High Power LED Driver for Parallel Configuration

  • 10頁

  • SIPEX

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廬
Preliminary
SP6683
High Power LED Driver for Parallel Configuration
FEATURES
V
OUT
1
10
C2P
鈻?/div>
Drives up to 8 WLEDS
鈻?/div>
Low Profile Inductorless Regulator
C1P
2
SP6683
9
C1N
鈻?/div>
1x/1.5x Mode Charge Pump
8
GND
V
IN
3
鈻?/div>
200mA Output Using 1碌F Ceramic Caps
10 Pin DFN
7
C2N
V
MODE
4
鈻?/div>
+2.7V to +5.5V Input Voltage Range
6
EN/PWM
FB
5
鈻?/div>
0.9mA Quiescent Current
鈻?/div>
1碌A Shutdown Current
Now Available in Lead Free Packaging
鈻?/div>
Built-in 1.2MHz Oscillator
鈻?/div>
Programmable Output Current or Voltage
APPLICATIONS
鈻?/div>
PWM Dimming Control via Enable Pin
鈻?/div>
Mobile Phone
鈻?/div>
Shutdown to Disconnect Output from Input
鈻?/div>
PDA
via Shutdown
鈻?/div>
Digital Still Camera
鈻?/div>
Soft Start to limit In-Rush Current
鈻?/div>
Digital Camcorder
鈻?/div>
Space Saving 10-pin 3 x 3mm DFN Package
鈻?/div>
Palmtop Computer
鈻?/div>
Color LCD Module
DESCRIPTION
The SP6683 is a high power current regulated charge pump ideal for converting a Li-Ion
battery input for driving up to 8 white LED鈥檚 used in backlighting color displays. The SP6683
operates with an internal 1.2MHz clock, enabling the use of small external components.
Output current can be accurately regulated by modulating the switcher between the charge
pump and output capacitor. In shutdown mode, the SP6683 discharges the output to ground
and draws less than 1碌A current. The SP6683 utilizes 1碌F capacitors to deliver up to 200mA
current regulated WLED drive capability. The SP6683 is offered in 10-pin DFN or MSOP
package.
TYPICAL APPLICATION SCHEMATIC
C2
1碌F
廬
1 V
OUT
2 C1P
Lithium-Ion
C1
1碌F
R1
C2P 10
SP6683
C1N 9
3
8
V
IN
GND
4
7
V
MODE
C2N
5
6
FB
EN/PWM
C4
1碌F
C5
1碌F
White
LED
R5
C3 0.1碌F
ENABLE/PWM DIMMING
R5
1M
Date: 07/07/04
SP6683 White LEDs Driver for Parallel Configuration
漏 Copyright 2004 Sipex Corporation
1

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