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FAN5037M

更新时间： 2024-02-13 00:31:51
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 稳压器开关式稳压器或控制器模拟IC电源电路开关式控制器光电二极管栅极驱动
页数 文件大小 规格书
11页 103K
描述
Analog IC

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中文翻译

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FAN5037M 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：SOP, SOP8,.25Reach Compliance Code：unknown
风险等级：5.81控制模式：CURRENT-MODE
JESD-30 代码：R-PDSO-G8JESD-609代码：e3
湿度敏感等级：1端子数量：8
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE认证状态：Not Qualified
子类别：Switching Regulator or Controllers表面贴装：YES
温度等级：COMMERCIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUALBase Number Matches：1

FAN5037M 数据手册

 浏览型号FAN5037M的Datasheet PDF文件第3页浏览型号FAN5037M的Datasheet PDF文件第4页浏览型号FAN5037M的Datasheet PDF文件第5页浏览型号FAN5037M的Datasheet PDF文件第7页浏览型号FAN5037M的Datasheet PDF文件第8页浏览型号FAN5037M的Datasheet PDF文件第9页 
FAN5037  
PRODUCT SPECIFICATION  
Table1. Bill of Materials for a FAN5037 3.3V, 13A Application  
Manufacturer  
Requirements  
and Comments  
Qty.  
Reference  
C1, C7-8  
C2-4  
Part Order #  
Description  
3
Any  
100nF, 25V Capacitor  
3
Sanyo  
1200µF, 10V Aluminum Capacitor  
I
= 2A , See Equation  
RMS  
10MV1200GX  
(2) in Applications  
1
1
6
Any  
Any  
1µF, 25V Capacitor  
C5  
180pF, 50V Capacitor  
C0G  
C6  
C9-14  
Sanyo  
1500µF, 6.3V Aluminum Capacitor  
ESR = 44mΩ  
6MV1500GX  
1
1
1
R1  
R2  
R3  
Any  
Any  
N/A  
47.5Ω  
4.75Ω  
5.2mΩ, 1W Resistor  
PCB Trace Resistor, see  
Equation (3) Applications  
1
1
1
R4  
R5  
D1  
Any  
Any  
3.48KΩ  
2KΩ  
Motorola  
15A, 45V Schottky  
MBRB1545CT  
1
1
1
D2  
D3  
Q1  
Fairchild  
MMBD4148  
Signal Diode  
Motorola  
1N4735A  
6.2V Zener  
Fairchild  
30V, 14mΩ Logic Level MOSFET  
FDB6030L  
Optional L1  
Any  
Any  
2.5µH Inductor  
4.7µH Inductor  
PWM Controller  
I
I
> 8A  
SAT  
1
1
L2  
> 13A  
SAT  
U1  
Fairchild  
FAN5037M  
High Current Output Drivers  
Application Information  
The FAN5037 high current output driver (DRV) contains  
high speed bipolar power transistors configured in a  
push-pull configuration. The output driver is capable of sup-  
plying 0.5A of current in less than 100ns. The driver’s power  
and ground are separated from the overall chip power and  
ground for added switching noise immunity.  
The FAN5037 contains a precision trimmed zero TC voltage  
reference, a constant-on-time architecture controller, a high  
current output driver, and a low offset error amp. The  
detailed block diagram in Figure 1 shows how the FAN5037  
works together with external components to achieve a high-  
performance switching power supply.  
Internal Reference  
Switch-Mode Control Loop  
The reference in the FAN5037 is a precision band-gap type  
reference. Its temperature coefficient is trimmed to provide a  
near zero TC.  
The main control loop for the switch-mode converter consists  
of a current conditioning amplifier and a voltage conditioning  
amplifier. The voltage amplifier compares the voltage from the  
internal reference with the converter’s output voltage divided  
by an external resistor divider. The current amplifier senses the  
current by comparing the voltages at the IFBH and IFBL pins,  
which are attached to either side of the current sense resistor.  
The signals from the voltage and current amplifiers are  
summed together, the result being used to control the off-time  
of the oscillator. The current feedback signal is also used as  
part of the FAN5037 short-circuit protection.  
Constant-On-Time Oscillator  
The FAN5037 switch-mode oscillator is designed as a fixed  
on-time, variable off-time oscillator. The constant-on-time  
oscillator consists of a comparator, an external capacitor, a  
fixed current source, a variable current source, and an analog  
switch that selects between two threshold voltages for the  
comparator. The external timing capacitor is alternately  
6
REV. 1.0.3 9/26/01  
1...3456789...11

中文翻译

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