- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄67412 > FAN5037MX_NL (FAIRCHILD SEMICONDUCTOR CORP) SWITCHING CONTROLLER, PDSO8 PDF資料下載
參數(shù)資料
| 型號(hào)： | FAN5037MX_NL |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO8 |
| 封裝： | LEAD FREE, SOIC-8 |
| 文件頁(yè)數(shù)： | 8/11頁(yè) |
| 文件大?。?/td> | 101K |
| 代理商： | FAN5037MX_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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| FAN5037M_NL | SWITCHING CONTROLLER, PDSO8 |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FAN5038 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Dual Voltage Controller for DSP Power |
| FAN5038M | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Dual Volt Controller DSP Power RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| FAN5038MX | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Dual Volt Controller DSP Power RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| FAN503MTCX | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FAN5056MV85 | 功能描述:DC/DC 開關(guān)控制器 SOIC-WIDE-24 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。