参数资料
型号: SP6686ER-L
厂商: Exar Corporation
文件页数: 4/12页
文件大小: 0K
描述: IC LED DRVR BK/BT CHG/PMP 10DFN
标准包装: 121
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:
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: 1016-1528-5
1016-1528-5-ND
1016-1680
SP6686ER-L-ND
S P 6 6 8 6
4 0 0 m A B u c k / B o o s t C h a r g e P u m p L E D D r i v e r
PIN DESCRIPTION
Name
V IN
C1
C2
FLASH
EN
R SET
FB
S GND
P GND
V OUT
Pin Number
1
2
3
4
5
6
7
8
9
10
Description
Input voltage for the charge pump. Decouple with 2.2μF ceramic capacitor close to the
pins of the IC.
Positive input for the external fly capacitor. Connect a ceramic 0.47μF capacitor close to
the pins of the IC.
Negative input for the external fly capacitor. Connect a ceramic 0.47μF capacitor close
to the pins of the IC.
Logic input to toggle 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.
Shutdown control input. Connect to V IN for normal operation, connect to ground for
shutdown.
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 ?
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. Fly 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.
ORDERING INFORMATION
Part Number
SP6686ER-L
SP6686ER-L/TR
Temperature
Range
-40°C ≤ T A ≤ +85°C
-40°C ≤ T A ≤ +85°C
Marking
SP66
86ER
WWX
SP66
86ER
WWX
Package
DFN-10
DFN-10
Packing
Quantity
Bulk
3K/Tape & Reel
Note 1
RoHS Compliant
Halogen Free
RoHS Compliant
Halogen Free
Note 2
SP6686EB
SP6686 Evaluation Board
“WW” = Work Week – “X” = Lot Number
? 2009 Exar Corporation
4/12
Rev. 2.0.0
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相关代理商/技术参数
参数描述
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