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| PowerInt InnoSwitch-CH USB 10W充电器参考设计 |
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| 文章来源： 更新时间：2014/11/25 10:16:00 |
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PowerInt公司的InnoSwitch-CH系列产品具有高度集成和紧凑封装,EcoSmart能效,先进保护和安全特性,无负载的功耗小于10mW,大大简化低压大电流电源的开发和制造,主要用于智能手机充电器.本文介绍了InnoSwitch-CH系列产品亮点,框图,典型应用电路,以及RDR-420 - 10 W CV/CC USB充电器主要指标,电路图,材料清单和PCB元件布局图.
The InnoSwitch™-CH family of ICs dramatically simplifies the development and manufacturing of low-voltage, high current power supplies, particularly those in compact enclosures or with high efficiency requirements. The InnoSwitch-CH architecture is revolutionary in that the devices incorporate both primary and secondary controllers, with sense elements and a safety-rated feedback mechanism into a single IC.
Close component proximity and innovative use of the integrated communication link permit accurate control of a secondary-side synchronous rectification MOSFET and optimization of primary-side switching to maintain high efficiency across the entire load range. Additionally, the minimal DC bias requirements of the link, enables the system to achieve less than 10 mW no-load in challenging applications such as smart-mobile device chargers.
InnoSwitch-CH系列产品亮点:
Highly Integrated, Compact Footprint
Incorporates flyback controller, 650 V MOSFET, secondary-side sensing and synchronous rectification
Integrated, HIPOT-isolated, feedback link
Exceptional CV/CC accuracy, independent of transformer design or external components
Instantaneous transient response ±5% CV with 0%-100%-0% load step
EcoSmart™– Energy Efficient
<10 mW no-load at 230 VAC
Easily meets all global energy efficiency regulations
Low heat dissipation
Advanced Protection / Safety Features
Primary sensed output OVP
Secondary sensed output overshoot clamp
Secondary sensed output OCP to zero output voltage
Hysteretic thermal shutdown
Full Safety and Regulatory Compliance
100% production HIPOT compliance testing at 6 kV DC/1 sec
Reinforced insulation
Isolation voltage >3,500 VAC
UL1577 and TUV (EN60950) safety approved
EN61000-4-8 (100 A/m) and EN61000-4-9 (1000 A/m) compliant
Green Package
Halogen free and RoHS compliant
InnoSwitch-CH系列应用:
Chargers and adapters for smart mobile devices
High efficiency, low voltage, high current power supplies
图1. InnoSwitch-CH系列初级边控制器框图
图2. InnoSwitch-CH系列次级边控制器框图
图3. InnoSwitch-CH系列5V/2A通用输入充电器电路图
RDR-420 - 10 W CV/CC USB充电器
RDR-420 - 10 W CV/CC USB充电器指标:
图4. RDR-420 - 10 W CV/CC USB充电器外形图(顶层)
图5. RDR-420 - 10 W CV/CC USB充电器外形图(底层)
图6. RDR-420 - 10 W CV/CC USB充电器电路图
图7. RDR-420 - 10 W CV/CC USB充电器变压器电路图
RDR-420 - 10 W CV/CC USB充电器材料清单(B)M):
图8. RDR-420 - 10 W CV/CC USB充电器PCB布局图(顶层)
图9. RDR-420 - 10W CV/CC USB充电器PCB布局图(底层)
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