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FAN5608DHMPX

更新时间： 2024-11-01 20:21:07
品牌 Logo 应用领域
安森美 - ONSEMI 驱动接口集成电路
页数 文件大小 规格书
15页 255K
描述
LED Driver

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中文翻译

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FAN5608DHMPX 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：VQCCN,Reach Compliance Code：compliant
风险等级：5.65Is Samacsys：N
数据输入模式：PARALLEL接口集成电路类型：LED DISPLAY DRIVER
JESD-30 代码：S-XQCC-N12长度：4 mm
功能数量：1区段数：6
端子数量：12最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：UNSPECIFIED
封装代码：VQCCN封装形状：SQUARE
封装形式：CHIP CARRIER, VERY THIN PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
座面最大高度：0.8 mm最大供电电压：5.5 V
最小供电电压：2.7 V标称供电电压：3.6 V
表面贴装：YES温度等级：INDUSTRIAL
端子形式：NO LEAD端子节距：0.8 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4 mmBase Number Matches：1

FAN5608DHMPX 数据手册

 浏览型号FAN5608DHMPX的Datasheet PDF文件第2页浏览型号FAN5608DHMPX的Datasheet PDF文件第3页浏览型号FAN5608DHMPX的Datasheet PDF文件第4页浏览型号FAN5608DHMPX的Datasheet PDF文件第5页浏览型号FAN5608DHMPX的Datasheet PDF文件第6页浏览型号FAN5608DHMPX的Datasheet PDF文件第7页 
www.fairchildsemi.com  
FAN5608  
Serial/Parallel LED Driver with Current-Regulated,  
Step-Up DC/DC Converter  
Features  
Description  
• Two Independent Channels Drive up to Six LEDs per  
Channel  
• Adaptive Output Voltage Drive to Maximize Efficiency  
• PWM/PFM Mode of Operation of the boost circuit  
• Up to 85% Efficiency  
• Up to 2 × 20mA Output  
• Two Built-in DACs for Independent (Digital) Brightness  
Control for Both Channels  
• LED’s Current Can be Duty-Cycle-Modulated between  
0 to 20mA  
• Digital, analog, and PWM brightness control  
• 2.7V to 5V Input Voltage Range  
• 0.5MHz Operating Frequency (8MHz internal clock)  
• Soft Start  
The FAN5608 LED driver generates regulated output cur-  
rents from a battery with input voltage varying between 2.7V  
to 5V. An internal NMOS switch drives an external inductor,  
and a Schottky diode delivers the inductor’s stored energy to  
the load. Proprietary internal circuitry continuously monitors  
each LED current string and automatically adjusts the gener-  
ated output DC voltage to the lowest minimum value  
required by the LED’s string with the highest summarized  
forward voltage. This adaptive nature of the FAN5608  
ensures operation at the highest possible efficiency. Soft start  
circuitry prevents excessive current drawn from the supply  
during power on. Any number of LEDs can be connected in  
series as long as the summed forward voltages do not lead to  
exceeding the specified operating output voltage range.  
Although it is not required to have an equal number of LEDs  
connected in series within each branch, the highest efficiency  
and best current regulation is always achieved when an equal  
number of LEDs are serially connected.  
• Low Shutdown Current: I < 1µA  
CC  
• LED Short Circuit Protection  
• Minimal External Components Needed  
• Available in an 8-lead MLP and a 12-lead MLP Package  
Applications  
• Cell Phones  
• Handheld Computers  
• PDAs, DSCs, MP3 Players  
• Keyboard Backlights  
• LED Displays  
In the FAN5608 device, two internal two-bit D/A converters  
provide independent programmability of each output channel  
current. Analog programming of the output current is also  
possible in the FAN5608. To do this, ground the "B" pins and  
connect a resistor between the "A" pins and a fixed supply  
Typical Application  
Analog or Digital Brightness Control  
L = 4.7µH  
2.7V to 5V  
L = 4.7µH  
2.7V to 5V  
IND  
NC  
IND  
V
IND  
OUT  
IND  
V
OUT  
V
IN  
V
V
IN  
4.7µF  
OUT  
4.7µF  
A1  
B1  
GND  
CH2  
CH1  
A1  
B1  
GND  
CH2  
CH1  
DAC Input For CH1  
DAC Input For CH2  
DAC Input For CH1  
DAC Input For CH2  
A2  
B2  
A2  
B2  
NC  
NC  
4X4mm MLP-12 Package  
4X4mm MLP-12 Package  
with external Schottky diode  
Order Code: FAN5608HMPX  
with internal Schottky diode  
Order Code: FAN5608DHMPX  
REV. 0.8.3 5/29/03  
1234567...15

中文翻译

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