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參數(shù)資料
| 型號(hào)： | SP6685ERTR |
| 元件分類： | LED驅(qū)動(dòng)器 |
| 英文描述： | Charge Pump LED Driver For Camera Flash |
| 中文描述： | 電荷泵的LED相機(jī)閃光燈驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大小： | 143K |
| 代理商： | SP6685ERTR |
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 |
|---|---|
| SP6685 | Charge Pump LED Driver For Camera Flash |
| SP6685ER | Charge Pump LED Driver For Camera Flash |
| SP6690 | Micro Power Boost Regulator Series White LED Driver |
| SP6690EB | Evaluation Board Manual |
| SP6690EK | Micro Power Boost Regulator Series White LED Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6686 | 制造商:EXAR 制造商全稱:EXAR 功能描述:400mA Buck/Boost Charge Pump LED Driver |
| SP6686EB | 功能描述:LED 照明開(kāi)發(fā)工具 Eval Board for SP6686 Series RoHS:否 制造商:Fairchild Semiconductor 產(chǎn)品:Evaluation Kits 用于:FL7732 核心: 電源電壓:120V 系列: 封裝: |
| SP6686ER | 制造商:Exar Corporation 功能描述:Driver, Other |
| SP6686ER-L | 功能描述:LED照明驅(qū)動(dòng)器 Driver RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| SP6686ER-L/TR | 功能描述:LED照明驅(qū)動(dòng)器 400mA Buck/Boost Charge Pump RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
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