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FAN5182 PDF预览

FAN5182

更新时间: 2024-01-20 12:07:33
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 控制器
页数 文件大小 规格书
18页 783K
描述
Adjustable Output 1, 2, or 3-Phase Synchronous Buck Controller

FAN5182 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:SSOP包装说明:LEAD FREE, MO-137AD, QSOP-20
针数:20Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.82其他特性:IT CAN ALSO OPERATE WITH CURRENT MODE
模拟集成电路 - 其他类型:SWITCHING CONTROLLER控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:13.2 V
最小输入电压:10.8 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G20JESD-609代码:e3
长度:8.66 mm湿度敏感等级:1
功能数量:1端子数量:20
最高工作温度:85 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:LSSOP
封装等效代码:SSOP20,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, LOW PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.65 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:PHASE-SHIFT最大切换频率:3000 kHz
温度等级:COMMERCIAL EXTENDED端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.635 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.9 mmBase Number Matches:1

FAN5182 数据手册

 浏览型号FAN5182的Datasheet PDF文件第2页浏览型号FAN5182的Datasheet PDF文件第3页浏览型号FAN5182的Datasheet PDF文件第4页浏览型号FAN5182的Datasheet PDF文件第5页浏览型号FAN5182的Datasheet PDF文件第6页浏览型号FAN5182的Datasheet PDF文件第7页 
May 2005  
FAN5182  
Adjustable Output 1, 2, or 3-Phase Synchronous Buck  
Controller  
Features  
Description  
Selectable 1-, 2-, or 3-phase operation at up to 1MHz per  
phase  
The FAN5182 is a highly efficient multi-phase synchronous buck  
switching regulator controller optimized for converting a 12V  
main supply into a high-current low voltage supply for use in  
point-of-load (POL) applications. It uses a multi-loop PWM  
architecture to drive the logic-level outputs at a programmable  
switching frequency that can be optimized for regulator size and  
efficiency. The phase relationship of the output signals can be  
programmed to provide 1, 2, or 3-phase operation, allowing for  
construction of up to three complementary interleaved buck  
switching stages.  
2ꢀ Worst-case differential sensing error over temperature  
Externally adjustable 0.8V to 5V output from a 12V supply  
Logic-level PWM outputs for interface to external high-power  
drivers  
Active current balancing between all phases  
Built-in power-good/crowbar functions  
Programmable over current protection with adjustable latch-  
off delay  
The FAN5182 also provides accurate and reliable over-current  
protection and adjustable current limiting.  
Applications  
Auxiliary supplies  
FAN5182 is specified over the commercial temperature range of  
0°C to +85°C and is available in a 20-lead QSOP package.  
DDR memory supplies  
Point-of-load supplies  
Block Diagram  
VCC  
1
RAMPADJ  
9
RT  
8
FAN5182  
UVLO  
SHUTDOWN  
& BIAS  
6
EN  
OSCILLATOR  
SET  
EN  
+
20  
19  
CMP  
RESET  
PWM1  
PWM2  
14  
GND  
+
950mV  
CURRENT  
BALANCING  
CIRCUIT  
+
CMP  
RESET  
FB  
1/ 2 / 3-PHASE  
DRIVER LOGIC  
+
18  
+
RESET  
PWM3  
CMP  
650mV  
CROWBAR  
CURRENT  
LIMIT  
5
PWRGD  
DELAY  
+
1.05V  
FB  
17  
16  
15  
SW1  
SW2  
SW3  
10  
ILIMIT  
EN  
12  
11  
+
CSSUM  
CSREF  
CURRENT  
LIMIT  
CIRCUIT  
7
4
DELAY  
COMP  
SOFT  
START  
13  
3
CSCOMP  
FB  
+
800 mV  
REFERENCE  
2
FBRTN  
©2005 Fairchild Semiconductor Corporation  
FAN5182 Rev. 1.0.1  
1
www.fairchildsemi.com  

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