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參數資料
| 型號： | SP6685ER |
| 元件分類： | LED驅動器 |
| 英文描述： | Charge Pump LED Driver For Camera Flash |
| 中文描述： | 電荷泵的LED相機閃光燈驅動器 |
| 文件頁數： | 3/10頁 |
| 文件大?。?/td> | 143K |
| 代理商： | SP6685ER |
3
Date: 12/15/04
SP6685 Charge Pump LED Driver for Camera Flash Copyright 2004 Sipex Corporation
PIN DESCRIPTION
PIN NUMBER
PIN NAME
DESCRIPTION
1
V
IN
Input Voltage for the charge pump. Decouple with 1
μ
F ceramic
capacitor close to the pins of the IC.
2
C1
Positive input for the external fly capacitor. Connect a ceramic 1
μ
F
capacitor close to the pins of the IC.
3
C2
Negative input for the external fly capacitor. Connect a ceramic 1
μ
F
capacitor close to the pins of the IC.
4
FLASH
Logic input to toggle operation between FLASH and TORCH mode.
In TORCH mode FB is regulated to the internal 50mV reference. In
FLASH mode FB reference voltage can be adjusted by changing the
resistor from R
SET
pin to ground. Choose the external current sense
resistor (R
SENSE
) based on desired current in TORCH mode. The
FLASH mode should be limited to 200ms to avoid overheating the
charge pump.
5
EN
Shutdown control input. Connect to V
IN
for normal operation, connect
to ground for shutdown.
6
R
SET
Connect a resistor from this pin to ground. When in FLASH mode
(FLASH = High) this resistor sets the current regulation point
according to the following: V
FB
= (1.26V/ R
SET
)*11.2K
.
7
FB
Feedback input for the current control loop. Connect directly to the
current sense resistor.
8
S
GND
Internal ground pin. Control circuitry returns current to this pin.
9
P
GND
Power ground pin. Fly capacitor current returns through this pin.
10
V
OUT
Charge Pump Output Voltage. Decouple with an external capacitor.
At least 1uF is recommended. Higher capacitor values reduce output
ripple.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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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