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PI Expert 6.6

机顶盒应用

PI 拥有一系列针对机顶盒电源应用的高度集成的离线式电源转换用高压IC。每个IC都在一片晶圆上集成了一个700 V的功率MOSFET、电源控制器及保护电路。其所拥有的产品特色包括电流限制、提高可靠性且具有自动恢复的过热关断保护特性、降低EMI的频率调制特性以及降低待机功耗的EcoSmart®技术。

典型应用
应用指南
设计参考 设计范例报告 工程原型报告 参考设计包
具备过压锁存 关断保护功能的宽范围机顶盒电源 Design Ideas are concise two-page documents describing a design for a specific application      
30 W 机顶盒电源 Design Ideas are concise two-page documents describing a design for a specific application      
7.5 W(13 W峰值)多路输出DVD电源 Design Ideas are concise two-page documents describing a design for a specific application.   RDR-115 RDK-115
57 W、230 VAC多路输出机顶盒电源 Design Ideas are concise two-page documents describing a design for a specific application.      
7 W DVB-T电源 Design Ideas are concise two-page documents describing a design for a specific application.      
43 W、 100/115 VAC多路输出机顶盒电源 Design Ideas are concise two-page documents describing a design for a specific application.      
28 W多路输出电源，空载功耗<50 mW Design Ideas are concise two-page documents describing a design for a specific application.      
32 W (47 W 峰值) 多路输出电源   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
33 W（60 W峰值）机顶盒PVR电源 Design Ideas are concise two-page documents describing a design for a specific application.      
16 W (24 W 峰值) 多路输出电源   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
13 W 电源   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
33 W 双输出、同步整流DC-DC正激式转换器   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
13 W 电源   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
42 W, 4 输出电源   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
30 W 多路输出电源   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
16 W 电源   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
17.4 W 电源   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
43 W / 57 W (峰值), 5 输出电源     Engineering Prototype Reports contain a power supply reference design specification, schematic, bill of materials, transformer documentation, and pcb layout. Performance data and typical operating characteristics are included. The design has been put into production for use in our Reference Design Kits.  
30 W DC-DC 正激式转换器     Engineering Prototype Reports contain a power supply reference design specification, schematic, bill of materials, transformer documentation, and pcb layout. Performance data and typical operating characteristics are included. The design has been put into production for use in our Reference Design Kits. DAK-21A
25 W 多路输出机顶盒电源     Engineering Prototype Reports contain a power supply reference design specification, schematic, bill of materials, transformer documentation, and pcb layout. Performance data and typical operating characteristics are included. The design has been put into production for use in our Reference Design Kits. DAK-32

适合上述应用的产品系列

IC 产品系列
典型的电路结构
额定功率/额定电流*
描述
PeakSwitch® 反激式

45 W 连续输出功率,
86 W 峰值功率
简单的开/关控制– 无需环路补偿。峰值功率能够达到连续输出功率的三倍。自适应的最大脉冲导通时间延长特性降低输入滤波电容的容量。
TinySwitch®-III 反激式 最高达28.5 W

导通时间延长技术及I2f 参数降低了输入电容、变压器及OVP的尺寸及成本。频率调制技术抑制了EMI。

TinySwitch®-PK 反激式 7.5 W连续功率,
13 W峰值功率
拥有TinySwitch-III所有功能，此外还具有峰值功率模式，进一步扩展了功率能力。
TOPSwitch®-GX 反激式 最高达210 W
更大的功率范围并具备欠压检测、过压关断、外部可编程的电流限制点及遥控开关机功能。
DPASwitch™ 反激/
正激式		 100 W
宽DC电压输入范围(16 VDC – 75 VDC) 并集成了无损耗电流限制功能。可进行同步整流。
TOPSwitch®-HX 反激式 最高达210 W
TOPSwitch-HX在一片晶圆上集成了一个700 V的功率MOSFET、高压开关电流源、PWM控制器、振荡器、热关断电路、故障保护及其他控制电路

相关设计支持资料

设计资料 设计指南
产品数据手册 AN-15 针对EMI及安全方面的TOPSwitch® 电源设计技术
AC-DC 产品选择指南 AN-18 TOPSwitch® 反激式变压器结构设计指南
封装信息 AN-29 TOPSwitch®-GX 反激式设计中器件快速选择曲线图
  AN-31 DPA-Switch™ DC-DC 正激式转换器设计指南
  AN-32 TOPSwitch®-GX 反激式电源设计方法
  AN-42 TinySwitcfh®-PK 近义词

其它相关链接

Power Integrations公司继续扩充面向充电器及适配器应用的高效低功率IC产品系列
 
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