PowerInt公司的InnoSwitch-CP系列INN2215K是离线CV/CC反激开关集成电路,集成了650V MOSFET,Sync-Rect反馈和用于USB-PD和QC 3.0的恒功率分布图,大大简化了低压大电流电源特别是小尺寸和高效率电源的开发和制造.支持快速充电协议USB-PD 和QC 3.0,隔离电压大于3,500 VAC ,UL1577和TUV (EN60950)安全认证,和EN61000-4-8 (100 A/m) 以及EN61000-4-9 (1000 A/m)兼容,主要用在QC 3.0和USB-PD充电器.本文介绍了InnoSwitch-CP系列INN2215K产品优势和主要特性,初级边和次级边控制器框图,简化应用电路,以及采用Weltrend WT6630P和INN2215K的18W USB-PD电源参考设计DER-567主要特性,主要指标,电路图,材料清单和PCB设计图和变压器电路图.

The InnoSwitch™-CP family of ICs dramatically simplify the development and manufacturing of low-voltage, high current power supplies, particularly those in compact enclosures or with high efficiency require­ments. The InnoSwitch-CP 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 both a secondary-side synchronous rectification MOSFET and optimization of primary-side MOSFET switching. This improves system reliability, maximizes efficiency across the entire load range and achieves no-load consump­tion of less than 10 mW.

INN2215K产品优势:

Highly Integrated, Compact Footprint

Incorporates flyback controller, 650 V MOSFET, secondary-side sensing and synchronous rectification driver

Supports fast charge protocols such as USB-PD and QC 3.0

Minimizes charging time with continuous adjustment of output current and voltage

Optimizes transformer and external components

FluxLink™ integrated, HIPOT-isolated, feedback link

Exceptional CV accuracy, tolerant of transformer and board component variances

EcoSmart™– Energy Efficient

<10 mW no-load at 230 VAC when supplied by transformer bias winding

Easily meets all global energy efficiency regulations

Advanced Protection / Safety Features

Primary sensed output OVP

Secondary sensed output overshoot clamp

Secondary sensed constant current with 3 V auto-restart

Hysteretic thermal shutdown

Input voltage monitor with accurate brown-in/brown-out and overvoltage protection

Full Safety and Regulatory Compliance

100% production HIPOT compliance testing equivalent to 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

INN2215K应用:

QC 3.0 and USB-PD chargers

图1.INN2215K初级边控制器框图

图2.INN2215K次级边控制器框图

图3.INN2215K典型应用框图

图4.INN2215K 5V/3A,9V/2A,12V/1.5A QC3.0兼容充电器/适配器电路图

采用Weltrend WT6630P和INN2215K的18W USB-PD电源参考设计DER-567

This document is an engineering report describing a 5 V, 3 A or 9 V, 2 A output USB Type-C and USB-PD charger using the InnoSwitch-CP and Weltrend WT6630P USB 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 InnoSwitch-CP controller providing exceptional performance.

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

18W USB-PD电源参考设计DER-567主要特性:

• InnoSwitch-CP industry first AC/DC IC with isolated, safety rated integrated feedback

• USB-PD compliance via single secondary side IC (Weltrend WT6630P)

• 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 at the end of cable (cable impedance ≤100 mΩ)

• <30 mW no-load input power

• >84.9% efficiency for 9 V, 2 A for all line conditions

• >87 % efficiency for 9 V, 2 A and 230 VAC input

• >8% CoC Tier 2 efficiency margin for 10% load

• Integrated thermal protection

• Primary sensed overvoltage protection