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參數(shù)資料
| 型號(hào)： | SP6682 |
| 英文描述： | High Efficiency Charge Pump Regulator for White LEDs |
| 中文描述： | 高效電荷泵調(diào)節(jié)器白光LED |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 190K |
| 代理商： | SP6682 |
1
Date: 5/5/04
SP6682 High Efficiency Charge Pump Regulator for White LEDs Copyright 2004 Sipex Corporation
SP6682
FEATURES
■
Ideal For White LED Driver
■
Low Profile, Inductorless Regulator
■
X1.5 and X2 Modes for Highest Efficiency
■
+2.7V to +5.5V Input Voltage Range
■
Fast Turn-On Time, 175
μ
S
■
1mA Quiescent Current
■
<1.5
μ
A Shutdown Current
■
Built-in 600kHz Oscillator
■
Programmable Output Current or Voltage
■
PWM Dimming Control with Enable Pin
■
Shutdown to Disconnect Output from Input
■
Soft Start to Eliminate In-Rush Current
■
Industry Standard 10-pin MSOP Package
and Small 10-pin DFN Package
High Efficiency Charge Pump Regulator
for White LEDs
APPLICATIONS
■
Next Generation Mobile Phones
■
PDAs
■
3.3V to 5.0V Conversion
■
Digital Still Cameras
■
Digital Camcorders
■
Palmtop Computers
■
Color LCD Modules
DESCRIPTION
The SP6682 is a current regulated charge pump ideal for converting a Li-Ion battery input for
driving white LED used in backlighting color displays. The charge pump automatically switches
between X1.5 and X2 modes based on the input voltage, providing improved efficiency over
traditional methods using charge pump doubler followed by LDO. This input voltage threshold
can be externally programmed for optimized efficiency at specific output voltages and currents.
The SP6682 operates with an internal 600kHz clock, enabling the use of small external
components. Output current or voltage can be accurately regulated by modulating the switcher
between the charge pump and output capacitor. In shutdown mode, the IC disconnects the output
from the input and draws less than 1.5
μ
A current. The SP6682 is offered in a 10-pin MSOP
package, and a small 10-Pin DFN Package.
TYPICAL APPLICATION SCHEMATIC
SP6682
V
OUT
C1P
V
IN
V
MODE
FB
C2P
C1N
GND
C2N
EN/PWM
1
2
3
4
5
10
9
8
7
6
C2
2.2
μ
F
C4
2.2
μ
FC5
2.2
μ
F
R6
20
C1
2.2
μ
F
Lithium-Ion
ENABLE/PWM DIMMING
White
LED
C3
0.1
μ
F
R2
R1
R3
1M
20
20
20
2.7 - 4.2V
C6
0.1
μ
F
SP6682
10 Pin DFN
10
9
8
7
6
1
2
3
4
5
C2P
C1N
GND
C2N
EN/PWM
VOUT
C1P
VIN
VMODE
FB
Now Available in Lead Free Packaging
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP6682ER | High Efficiency Charge Pump Regulator for White LEDs |
| SP6682EU | High Efficiency Charge Pump Regulator for White LEDs |
| SP6682UEB | Evaluation Board Manual |
| SP6683 | High Power LED Driver for Parallel Configuration |
| SP6683ER | High Power LED Driver for Parallel Configuration |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6682_06 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Efficiency Charge Pump Regulator for White LEDs |
| SP6682EB | 功能描述:電源管理IC開(kāi)發(fā)工具 Eval Board for SP6682 Series RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| SP6682ER | 制造商:Exar Corporation 功能描述:Driver, Other |
| SP6682ER/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Efficiency Charge Pump Regulator for White LEDs |
| SP6682ER-L | 功能描述:電荷泵 White LEDs RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
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