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參數(shù)資料
| 型號： | SP6685ER |
| 元件分類： | LED驅(qū)動器 |
| 英文描述： | Charge Pump LED Driver For Camera Flash |
| 中文描述： | 電荷泵的LED相機閃光燈驅(qū)動器 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 143K |
| 代理商： | SP6685ER |
1
Date: 12/15/04
SP6685 Charge Pump LED Driver for Camera Flash Copyright 2004 Sipex Corporation
SP6685
DESCRIPTION
The SP6685 is a current regulated charge pump ideal for powering high brightness LEDs for
camera flash applications. The charge pump can be set to regulate two current levels for
FLASH and TORCH modes. The SP6685 automatically switches modes between step-up
and step-down ensuring that LED current does not depend on the forward voltage. A low
current sense reference voltage (50mV) allows the use of small 0603 current sensing
resistors. The SP6685 is offered in 10-pin DFN package.
TYPICAL APPLICATION CIRCUIT
FEATURES
■
High Output Current Charge Pump: 700mA
■
Adjustable FLASH mode
■
x1 and x2 Automatic Modes for High Efficiency
■
Minimum External Components: No Inductors
■
High Frequency Operation: 2.4 MHz
■
Low 50mV reference for low loss sensing
■
1
μ
A shutdown current
■
PWM Dimming Control
■
Over voltage protection on output
■
Over current protection
■
Over temperature protection
■
Space Saving 10-pin 3mm x 3mm DFN
Package
APPLICATIONS
■
LED Torch/Flash for Cell
Phones, DSCs, and Camcorders
■
Generic Lighting/Flash/Strobe
Applications
Charge Pump LED Driver For Camera Flash
Preliminary
Now Available in Lead Free Packaging
SP6685
10 Pin DFN
10
9
8
7
6
VOUT
PGND
SGND
FB
RSET
1
2
3
4
5
VIN
C1
C2
FLASH
EN
SP6685
D1
1W LED
ENABLE
TORCH/FLASH
C1
C2
FLASH
EN
FB
P
GND
S
GND
R
SET
V
OUT
V
IN
4.7
μ
F
(2.7 - 4.3V)
1
μ
F
1
μ
F
R
SENSE
0.22
R
SET
88.7K
C
IN
C
OUT
C
FC
V
IN
V
REF
= 50 - 150mV
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP6690 | Micro Power Boost Regulator Series White LED Driver |
| SP6690EB | Evaluation Board Manual |
| SP6690EK | Micro Power Boost Regulator Series White LED Driver |
| SP6690ER | Micro Power Boost Regulator Series White LED Driver |
| SP6690EU | Evaluation Board Manual |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6685ER/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:700mA Buck/Boost Charge Pump LED Driver |
| SP6685ER-L | 功能描述:電荷泵 Camera Flash 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 |
| SP6685ER-L/TR | 功能描述:電荷泵 700mA For Camera Flash 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 |
| SP6685ERTR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Charge Pump LED Driver For Camera Flash |
| SP6686 | 制造商:EXAR 制造商全稱:EXAR 功能描述:400mA Buck/Boost Charge Pump LED Driver |
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