18W PD fast charge power application based on PN8161 + PN8307H

Beijing time October 30th, new iPad Pro is released as scheduled, divided into two different sizes of IPS retina: 11 inches and 12.9 inches, equipped with powerful A12X processors with M12 coprocessors, and the home button on the border, There is no Liuhai full screen to join the Face ID. In addition, the LightNing interface and the headphone hole are discarded, replaced with a USB-C interface, support 4K video output, support USB PD fast charging, can reverse output to other devices (such as charge IPHONE). In terms of accessories, 18W USB PD charger is standardized with USB-C to USB-C data lines. To share the 18W PD fast charge power application scheme based on PN8161 + PN8307H. Solution highlight Save more than 10 periphery: No start-up resistor, no CS detection network, the original sub-side implements SOP8 power integration; Meet COC V5 Tier 2: Patented high pressure start, achieve 30MW standby power consumption; working curve with output voltage adaptation, the average efficiency margin at different output voltages is greater than 4 points; EMC performance is excellent: The shaking range is self-adaptable, improve the conduction; DCM / QR mode of operation, avoiding the reverse recovery problem of secondary rectifiers, improving radiation; 3.3 ~ 12V wide output voltage range: The PN8161 / PN8307H is wide, no additional LDO regulation is required; The protocol chip is arbitrary: The SSR architecture is easy to meet PD3.0 / QuickCharge 4+. Package and foot configuration map PN8161 integrates quasi-resonant working current mode controllers and power MOSFETs, dedicated to high performance and peripheral components, streamlined direct flow conversion switching power supplies. PN8161 PN8307H Demo physical map Plan typical application diagram Program characteristics Input voltage: 90 ~ 265VAC Output power: 18W Output specifications: 12V1.5A; 9V2A; 5V3A Average efficiency: Meet COC V5-2, 4 points PCBA Size: 48.0mm * 36.0mm * 14mm It has a market brown in / out, output overvoltage protection, precision over temperature protection, progressive overcurrent protection, secondary rectification tube short circuit protection, etc. Test Data Energy efficiency test Test conditions: Test points are PCB ends 2. Wenheng test Test conditions: 45 ° C ring temperature, no wind, shell, air natural convection, output is 5.9V3A (Temperature data: CH1PN8161; CH2PN8307H; CH3 magnetic core; CH4 primary enameled wire; CH5 three-layer insulation line; CH6 housing) 3. Protection function EMC test EMI conduction, radiation meets EN55022 Class B standard requirements, large margin is greater than 6dB ESD meets IEC61000-4-2, 8kV / 15kV level requirements EFT meets IEC 61000-4-4: 2004, 4kV rating requirements Surge meets IEC 61000-4-5: 2005, 1kv rating requirements Communication is insulated to meet 3.75kV requirements, read full text, original title: 10 peripheral 18W PD fast charge, no fire! Article Source: [Micro Signal: Chipown, WeChat public number: 朋微电子] Welcome to add attention! Please indicate the source of the article.