- 您现在的位置：买卖IC网 > PDF目录67412 > FAN5037M_NL (FAIRCHILD SEMICONDUCTOR CORP) SWITCHING CONTROLLER, PDSO8 PDF资料下载
参数资料
| 型号： | FAN5037M_NL |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO8 |
| 封装： | LEAD FREE, SOIC-8 |
| 文件页数： | 8/11页 |
| 文件大小： | 101K |
| 代理商： | FAN5037M_NL |
FAN5037
PRODUCT SPECIFICATION
6
REV. 1.0.3 9/26/01
Table1. Bill of Materials for a FAN5037 3.3V, 13A Application
Qty.
Reference
Manufacturer
Part Order #
Description
Requirements
and Comments
3
C1, C7-8
Any
100nF, 25V Capacitor
3
C2-4
Sanyo
10MV1200GX
1200F, 10V Aluminum Capacitor
IRMS = 2A , See Equation
(2) in Applications
1
C5
Any
1F, 25V Capacitor
1
C6
Any
180pF, 50V Capacitor
C0G
6
C9-14
Sanyo
6MV1500GX
1500F, 6.3V Aluminum Capacitor
ESR = 44m
1
R1
Any
47.5
1
R2
Any
4.75
1
R3
N/A
5.2m
, 1W Resistor
PCB Trace Resistor, see
Equation (3) Applications
1
R4
Any
3.48K
1
R5
Any
2K
1
D1
Motorola
MBRB1545CT
15A, 45V Schottky
1
D2
Fairchild
MMBD4148
Signal Diode
1
D3
Motorola
1N4735A
6.2V Zener
1
Q1
Fairchild
FDB6030L
30V, 14m
Logic Level MOSFET
Optional
L1
Any
2.5H Inductor
ISAT > 8A
1
L2
Any
4.7H Inductor
ISAT > 13A
1
U1
Fairchild
FAN5037M
PWM Controller
Application Information
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.
Switch-Mode Control Loop
The main control loop for the switch-mode converter consists
of a current conditioning amplier and a voltage conditioning
amplier. The voltage amplier compares the voltage from the
internal reference with the converter’s output voltage divided
by an external resistor divider. The current amplier 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 ampliers 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.
High Current Output Drivers
The FAN5037 high current output driver (DRV) contains
high speed bipolar power transistors congured in a
push-pull conguration. 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.
Internal Reference
The reference in the FAN5037 is a precision band-gap type
reference. Its temperature coefcient is trimmed to provide a
near zero TC.
Constant-On-Time Oscillator
The FAN5037 switch-mode oscillator is designed as a xed
on-time, variable off-time oscillator. The constant-on-time
oscillator consists of a comparator, an external capacitor, a
xed 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
相关PDF资料 |
PDF描述 |
|---|---|
| FAN5061M | SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO20 |
| FAN5201MSA | 6 A BATTERY CHARGE CONTROLLER, 275 kHz SWITCHING FREQ-MAX, PDSO24 |
| FAN5361UMP10X | SWITCHING REGULATOR, DSO6 |
| FAN5361UC13X | SWITCHING REGULATOR, PBGA6 |
| FAN5361UC15X | SWITCHING REGULATOR, PBGA6 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| FAN5037MX | 功能描述:DC/DC 开关控制器 Switching Controller adustable RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| FAN5038 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Dual Voltage Controller for DSP Power |
| FAN5038M | 功能描述:数字信号处理器和控制器 - DSP, DSC Dual Volt Controller DSP Power RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| FAN5038MX | 功能描述:数字信号处理器和控制器 - DSP, DSC Dual Volt Controller DSP Power RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| FAN503MTCX | 制造商:Fairchild Semiconductor Corporation 功能描述: |
发布紧急采购，3分钟左右您将得到回复。