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參數(shù)資料
| 型號： | X9318 |
| 元件分類： | 數(shù)字電位計(jì) |
| 英文描述： | Digitally Controlled Potentiometer (XDCP)(單DCP,抽頭位置掉電自動保存,高輸出端電壓,可部分替代X9312W) |
| 中文描述： | 數(shù)控電位器（數(shù)字電位器）（單應(yīng)課稅品許可證，抽頭位置掉電自動保存，高輸出端電壓，可部分替代X9312W） |
| 文件頁數(shù)： | 1/22頁 |
| 文件大?。?/td> | 269K |
| 代理商： | X9318 |
Application Note
1 of 22
www.xicor.com
January, 2001
Designing Power Supplies Using
Xicor’s XDCP Mixed Signal Products
By Bill Slack
Abstract
The objective of this Application Note is to illustrate
the use of a Xicor XDCP
(Digitally Controlled Potenti-
ometer) in the design of switching power supply. A
mixed signal XDCP device is used to set the output
voltage, the PWM (Pulse Width Modulation) frequency,
and the over-current limit in a reference design of a
12V@10A
power supply. The techniques reflected in this
working reference design could be used in the general
power supply design for industrial, consumer, and
communication systems.
A digitally controlled or electronic potentiometer over-
comes many of the problems of its mechanical
counterpart. The silicon, CMOS XDCP device has high
reliability, no wiper movement due to environment,
digital or computer controls, and a ‘set and forget’
calibration mode done manually or using automatic test
equipment.
I.
THEORY OF OPERATION
Digitally Controlled Potentiometer
Switching Power Supply
Front End
Power Mesh
Secondary Control
Primary Control
II. DETAILED CIRCUIT DESCRIPTION
Front End
Power Mesh
Secondary Control
Setting the Output Voltage
Primary Control
Setting the PWM Frequency
Setting the Over Current Limit
Performance Data for Reference Design
III. OTHER XDCP/POWER SUPPLY
APPLICATIONS
IV. APPENDIX
Parts List and Magnetics Information
Simple XDCP Programmer
Design and Construction Tips
AN 139
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PDF描述 |
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| x9319 | Digitally Controlled Potentiometer(數(shù)字電位器) |
| X93256 | Dual Digitally Controlled Potentiometers (XDCPs)(雙數(shù)控電位器) |
| x9400 | Quad SPI EEPOT Nonvolatile Digital Potentiometer(四SPI EEPOT非易失性數(shù)字電位器) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X9318WP8 | 功能描述:IC XDCP 100-TAP 10K 8-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:32 電阻（歐姆）:50k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 50 ppm/°C 存儲器類型:易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細(xì)型，TSOT-23-6 供應(yīng)商設(shè)備封裝:TSOT-23-6 包裝:帶卷 (TR) |
| X9318WP8I | 功能描述:IC XDCP 100-TAP 10K 8-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:32 電阻（歐姆）:50k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 50 ppm/°C 存儲器類型:易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細(xì)型，TSOT-23-6 供應(yīng)商設(shè)備封裝:TSOT-23-6 包裝:帶卷 (TR) |
| X9318WP8IZ | 功能描述:IC XDCP 100-TAP 10K 8-PDIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:256 電阻（歐姆）:100k 電路數(shù):2 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲器類型:易失 接口:6 線串行（芯片選擇，遞增，增/減） 電源電壓:2.6 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| X9318WS8 | 功能描述:IC XDCP 100-TAP 10K 8-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:32 電阻（歐姆）:50k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 50 ppm/°C 存儲器類型:易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細(xì)型，TSOT-23-6 供應(yīng)商設(shè)備封裝:TSOT-23-6 包裝:帶卷 (TR) |
| X9318WS8I | 功能描述:IC XDCP 100-TAP 10K 8-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:32 電阻（歐姆）:50k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 50 ppm/°C 存儲器類型:易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細(xì)型，TSOT-23-6 供應(yīng)商設(shè)備封裝:TSOT-23-6 包裝:帶卷 (TR) |
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