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参数资料
| 型号： | SP7685EB |
| 厂商： | Exar Corporation |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR SP7665 |
| 标准包装： | 1 |
| 系列： | * |
PIN DESCRIPTION
PIN
NUMBER
1
2
3
4
5
6
7
8
9
10
PIN NAME
V IN
C1
C2
FLASH
EN
R SET
FB
S GND
P GND
V OUT
DESCRIPTION
Input Voltage for the charge pump. Decouple with
4.7μF ceramic capacitor close to the pins of the IC.
Positive input for the external flying capacitor. Connect
a ceramic 1μF capacitor close to the pins of the IC.
Negative input for the external flying capacitor. Connect
a ceramic 1μF capacitor close to the pins of the IC.
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. This pin does not have an internal pull-up/pull-
down; do not leave this pin floating.
Shutdown control input. Connect to V IN for normal
operation, connect to ground for shutdown. This pin
does not have an internal pull-up/pull-down; do not
leave this pin floating.
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 =
R SET *14uA/5 (Flash Mode)
Feedback input for the current control loop. Connect
directly to the current sense resistor.
Internal ground pin. Control circuitry returns current to
this pin.
Power ground pin. Flying capacitor current returns
through this pin.
Charge Pump Output Voltage. Decouple with an
external capacitor. At least 1μF is recommended.
Higher capacitor values reduce output ripple
Date: 6/20/06 Rev T
SP7685, 1.2A Buck/BoostCharge Pump LED Driver
3
? 2006 Sipex Corporation
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP7685ER | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP7685ER-L | 功能描述:LED照明驱动器 1.2A Bck/Bst Charge Pump LED Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| SP7685ER-L/TR | 功能描述:LED照明驱动器 1.2A BUCK/BOOST LED DRVR RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| SP7686 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Constant Current Flash Driver in DFN 2mm x 3mm |
| SP7686A | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Constant Current Flash Driver in DFN 2mm x 3mm |
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