原标题：PowerInt InnoSwitch 3-CP系列45W USB PD电源参考设计(DER-536)

　　PowerInt公司的InnoSwitch™3-CP系列在单片IC内集成了初级和次级控制器以及安全标准的反馈,具有多种保护如线路过压和欠压保护,输出过压和过流限制,超温关断等,大大简化了反激电源转换器的设计和制造.本文介绍了InnoSwitch™3-CP系列产品亮点,框图,典型应用电路,以及45W USB PD电源参考设计DER-536主要特性和指标,电路图,材料清单和PCB设计图.

　　The InnoSwitch™3-CP family of ICs dramatically simplifies the designand manufacture of flyback power converters, particularly thoserequiring high efficiency and/or compact size. The InnoSwitch3-CPfamily incorporates primary and secondary controllers and safety-ratedfeedback into a single IC.

　　InnoSwitch3-CP family devices incorporate multiple protection featuresincluding line over and under-voltage protection, output over-voltageand over-current limiting, and over-temperature shutdown. Devices areavailable that support the common combinations of latching andauto-restart behaviors required by applications such as quick chargeand USB PD designs. The devices are available with and withoutcable-drop compensation.

　　InnoSwitch™3-CP系列产品亮点:

　　Highly Integrated, Compact Footprint

　　• Up to 94% efficiency across full load range

　　• Quasi-Resonant (QR) / CCM flyback controller, 650 V or 725 V MOSFET4,secondary-side sensing and synchronous rectification driver

　　• Integrated FluxLink™, HIPOT-isolated, feedback link

　　• Easily interfaces to load-directed and fast charge protocol ICs

　　• Constant Power (CP) Profile minimizes charging time with continuousadjustment of output current and voltage

　　• Accurate CV/CC/CP, independent of external components

　　• External IS resistor allows custom CC programming

　　• Instantaneous transient response with 0%-100%-0% load step

　　EcoSmart™ – Energy Efficient

　　• Less than 15 mW no-load including line sense

　　• Easily meets all global energy efficiency regulations

　　• Low heat dissipation

　　Advanced Protection / Safety Features

　　• Secondary MOSFET or diode short-circuit protection

　　• Open SR FET-gate detection

　　• Fast input line UV/OV protection

　　Optional Features

　　• Cable-drop compensation with multiple settings

　　• Variable output voltage, constant current profiles

　　• Auto-restart or latching fault response for output OVP/UVP

　　• Multiple output UV fault thresholds

　　• Latching or hysteretic primary over-temperature protection

　　Full Safety and Regulatory Compliance

　　• Reinforced isolation

　　• Isolation voltage >4000 VAC

　　• 100% production HIPOT testing

　　• UL1577 and TUV (EN60950) safety approved

　　• Excellent noise immunity enables designs that achieve class “A”performance for EN61000-4; EN61000-4-2, 4-3 (30 V/m), 4-4, 4-5,4-6, 4-8 (100 A/m) and 4-9 (1000 A/m) and Ford FMC1278 (RI-115)

　　Green Package

　　• Halogen free and RoHS compliant

　　InnoSwitch™3-CP系列应用:

　　• High efficiency flyback designs up to 65 W

　　• USB PD / QC / proprietary protocol chargers

　　参考设计DER536

　　This document is an engineering report describing a 15 V / 3 A, 9 V / 3 A and 5 V / 3 A output USB Type-C and USB PD charger using the InnoSwitch3-CP INN3268C and Cypress CYPD2134 Type-C USB PD controller. This design shows the high power density and efficiency that is possible due to the high level of integration of the InnoSwitch3-CP controller providing exceptional performance.

　　This document contains the power supply specification, schematic, bill of materials, transformer documentation, printed circuit layout, safety and performance data

　　参考设计DER536主要特性:

　　 InnoSwitch3-CP is the industry’s first AC/DC IC with isolated, safety rated integrated feedback

　　 All the benefits of secondary-side control with the simplicity of primary-side regulation

　　 Insensitive to transformer variation

　　 Built in synchronous rectification for high efficiency

　　 Meets DOE6 and CoC V5 2016 with at least 1.4% margin

　　 <30 mW no-load input power across line

　　 Load regulation ≤ 2.5%

　　 Integrated thermal protection: passes thermals under ambient conditions of 45 ℃

　　 Primary sensed overvoltage protection

　　 Design thickness ≤10 mm without the enclosure

　　 Planar transformer construction

　　图.参考设计DER536外形图(正面)

　　图.参考设计DER536外形图(背面)

　　参考设计DER536主要性能指标:

　　参考设计DER536材料清单:

　　详情请见:

innoswitch3-cp_family_datasheet.pdf

der536.pdf