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一,目录 1.产品概述 2.产品特点 3.应用范围 4.功能概述 5.电路原理图 6.产品PCB 7.产品BOM 8.产品PDF文档 9.产品封装图 10.变压器绕 11,应用说明 12,关键元器件温度测试 13,关键元器件温度测试 二,产品概述(General Description) JTM6772 is a high performance, highly integrated QR (Quasi Resonant Mode) and Primary Side Regulation (PSR) power switch for offline small power converter applications. JTM6772 has proprietary super-QR/PSRTM control for high efficiency and low EMI, which can ensure system to meet EPS Level 6 energy standard. The IC also has built-in cable drop compensation function to achieve excellent CV performance. JTM6772 uses Multi Mode Control to improve efficiency and reliability and to decrease audio noise energy @ light loadings. JTM6772 also integrates the function of “Max. Frequency Clamping @ Output Short Circuit” to limits power MOJTMET Vds spike when output short circuits occurs. JTM6772 integrates functions and protections of FB Short Protection, Under Voltage Lockout (UVLO), VDD Over Voltage Protection (VDD OVP), Output Over Voltage Protection (Output OVP), Soft Start,Cycle-by-cycle Current Limiting (OCP), Pin Floating Protection, VDD Clamping.JTM6772 is available in SOP8 package 三.产品特点(Features) 1、内置600V功率MOS ,SOP-8封装,全电压输入最大输出功率6W。 2、 PSR控制模式，无光耦，无431。 3、±5% 的恒流恒压精度。 4、专利的‘‘Super-QR/PSR’技术，提高系统效率。 5、系统效率满足 ‘六级能效’ 要求。 6、专利的 ‘智能短路保护’ 技术。 7、专利的 ‘多模式PSR’ 技术。 8、内置专利的线损电压补偿。 9、输出过压保护，VDD欠压保护，过压保护及钳位。 四,应用范围 (Applications) 智能手机充电器  五,功能概述 1、输入90-264V 50/60Hz 2、输出5V 1A 3、待机小于75mW 4、PCB 尺寸28x37mm 5、满足六级能效Tier 2 六,Super-QR/PSRTM 技术核心表征  七,电路原理图  八, 产品PCB  九.产品BOM
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