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FAN5617

更新时间： 2024-02-21 04:54:44
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 驱动器
页数 文件大小 规格书
10页 265K
描述
High-Efficiency, Constant-Current LED Driver with TinyWire Brightness Control

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中文翻译

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FAN5617 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Contact Manufacturer零件包装代码：QFN
包装说明：HVQCCN,针数：16
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.76
Is Samacsys：N数据输入模式：PARALLEL
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：S-XQCC-N16
JESD-609代码：e4长度：3 mm
湿度敏感等级：1复用显示功能：NO
功能数量：1区段数：3
端子数量：16最高工作温度：85 °C
最低工作温度：封装主体材料：UNSPECIFIED
封装代码：HVQCCN封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.8 mm
最大供电电压：5.5 V最小供电电压：2.5 V
标称供电电压：3.6 V表面贴装：YES
温度等级：OTHER端子面层：NICKEL PALLADIUM GOLD
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3 mmBase Number Matches：1

FAN5617 数据手册

 浏览型号FAN5617的Datasheet PDF文件第2页浏览型号FAN5617的Datasheet PDF文件第3页浏览型号FAN5617的Datasheet PDF文件第4页浏览型号FAN5617的Datasheet PDF文件第5页浏览型号FAN5617的Datasheet PDF文件第6页浏览型号FAN5617的Datasheet PDF文件第7页 
April 2007  
FAN5617  
High-Efficiency, Constant-Current LED Driver with  
TinyWire™ Brightness Control  
Features  
Description  
The FAN5617 is a low-ripple, low-EMI, high-efficiency,  
constant-current LED driver that drives three LEDs in  
parallel. The LED brightness control is programmable  
through Fairchild’s proprietary single-wire digital  
interface, TinyWire™. The charge pump DC/DC  
converter operates in three modes: 1X, 1.5X, and 2X  
over the entire input voltage range of 2.7V to 5.5V. The  
adaptive nature of the built-in charge pump eliminates  
the need for LED pre-selection (matching) and delivers  
high output efficiency. FAN5617 is capable of driving up  
to 90mA total output current, 30mA per channel. The  
driver’s built-in, proprietary auto-sense circuit ensures  
the same efficiency regardless of the number of LEDs  
connected. When the input voltage is insufficient to  
sustain the LEDs programmable current level, the  
FAN5617 reconfigures itself to operate as a linear  
regulator and the charge pump circuit turns off.  
ƒ Three-Channel Parallel LED Driver for a Large Range  
of Forward Voltages  
ƒ TinyWire™ Single-Wire Digital Brightness Control  
ƒ 32 Static Brightness Levels with 5-Bit Internal DAC  
ƒ Adaptive VOUT Adjustment to the Highest Diode  
Forward Voltage  
ƒ Matched LED Currents; Matched or Unmatched LEDs  
ƒ Built-in Charge Pump with Three Modes of Operation:  
1x (linear), 1.5x, and 2x  
ƒ Up to 90% Efficiency  
ƒ Low EMI, Low Ripple  
ƒ Up to 90mA Total Output Current  
ƒ Drives up to Three LEDs at 30mA Each  
ƒ External Resistor Sets Maximum (100%) LED Current  
ƒ 2.7V to 5.5V Input Voltage Range  
ƒ 1MHz Operating Frequency  
The FAN5617 features Fairchild’s TinyWire™ single-  
wire digital interface for LED brightness control. The  
built-in 5-bit DAC provides selection of 32 dimming  
levels, where each level is a percentage of the  
maximum LED current set by the external resistor, RSET  
The FAN5617 includes shutdown, short-circuit, and  
thermal protection circuitry.  
.
ƒ Shutdown Isolates Output from Input, Typically <1µA  
ƒ Protections: Short-Circuit; Soft-Start Limits Inrush  
Current  
Minimal external components are required: two bucket  
capacitors (2µF and 1µF), a 4.7µF input capacitor, and a  
1µF output capacitor are needed for proper operation.  
ƒ Minimal External Components Required  
ƒ 3x3mm 16-Lead MLP Package  
The FAN5617 is available in a 3x3mm, 16-lead, molded  
leadless package (MLP).  
Applications  
ƒ Portable Handheld Backlight  
ƒ PDAs, DVD players, Pagers, Camcorder Backlights  
ƒ Portable Medical Diagnostic Equipments Display  
ƒ MP3 Player Displays  
ƒ Digital Still Camera Backlight  
Ordering Information  
Part Number Pb-Free  
Operating Temperature Range  
Package  
Packing Method  
FAN5617MPX  
Yes  
0°C to 85°C  
MLP-16 3x3mm  
Tape and Reel  
TinyWire™ is a trademark of Fairchild Semiconductor Corporation.  
© 2006 Fairchild Semiconductor Corporation  
FAN5617 Rev. 1.0.1  
www.fairchildsemi.com  
1234567...10

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