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参数资料
| 型号： | SP7685ER-L |
| 厂商： | Exar Corporation |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR PWM DIMMING 10DFN |
| 标准包装： | 1 |
| 拓扑： | PWM，降压（降压），升压（升压），切换式电容器（充电泵） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，闪灯/白光 |
| 类型 - 次要： | 高亮度 LED（HBLED），白色 LED |
| 频率： | 2.4MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 供应商设备封装： | 10-DFN（3x3） |
| 包装： | 散装 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | 1016-1406 |
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-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 |
| SP7686A_07 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP7686AEB | 功能描述:电源管理IC开发工具 500mA Programmable Charge Pump LED Drvr RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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