Block Diagrams
L1
VIN
CIN
Q1
Q2
D1
SW
GATE
DRIVE
VOUT
PGND
EN
BOOST
CONTROL
Q3
VLED
C OUT
2–4
LEDs
GND
FB
RSET
15 -
133 Ω
Figure 2.
Block Diagram
Table 1.
Recommended External Components
L
Component
L1
Description
22 μ H Nominal
Vendor
Murata
LQH3NPN220MGOK
Parameter
(1)
DCR (Series R)
Min.
Typ.
22
1100
Max.
Units
μ H
m Ω
C OUT
C IN
4.7 μ F X5R or Better
4.7 μ F X5R or Better
C
C
4.7
4.7
μ F
μ F
Note:
1. Minimum L (inductance) incorporates tolerance, temperature, and DC bias effects (L decreases with increasing current).
? 2010 Fairchild Semiconductor Corporation
FAN5340 ? Rev. 1.0.1
2
www.fairchildsemi.com
相关PDF资料
FAN5341UMPX IC LED DVR BOOST W/DIO 6-ULMP
FAN5343UMPX IC LED DVR 6LED 500MW 6UMLP
FAN5345S30X IC LED DVR ASYNC BOOST 30V 6SSOT
FAN5346S30X IC LED DVR ASYNC SER BOOST 6SSOT
FAN53540UCX IC REG SYNC BUCK 5A 20WLCSP
FAN5626LX IC LED DVR 6CH INTERFACE 10-UMLP
FAN5640S7X IC LED DRIVER DUAL CC SC70-6
FAN5646S700X IC LED DRIVER BLINKER SC70-5
相关代理商/技术参数
FAN5340UCX 功能描述:LED照明驱动器 Sync Constant Crnt Series Boost LEDDrvr 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
FAN5341 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Series Boost LED Driver with Integrated Schottky Diode and Single-Wire Digital Interface
FAN53418 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Synchronous DC-DC MOSFET Driver
FAN53418 WAF 制造商:Fairchild Semiconductor Corporation 功能描述:
FAN53418M 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Synchronous DC-DC MOSFET Driver
FAN53418MX 功能描述:功率驱动器IC DC-DC MOSFET Driver Synchronous RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
FAN5341AUMPX 制造商:Fairchild Semiconductor Corporation 功能描述:
FAN5341UMPX 功能描述:功率驱动器IC Asynchronous Series Boost LED Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube