特性 Current-Mode with adjustable skip-cycle capability Built-in internal ramp compensation Auto-recovery internal output short-circuit protection Full latch-off if Adjustment pin is brought high Extremely low no-load standby power Internal temperature shutdown 500mA peak current capability Fixed frequency versions at 65kHz, 100kHz and 133kHz Direct optocoupler connection Internal Leading Edge Blanking SPICE models available for TRANsient and AC analysis Internal 1ms Soft start (A version only) Limited Duty Cycle to 50% (A version only) Pb-Free Packages are Available 应用 High power AC/DC converters for TVs, set-top boxes etc Offline adapters for notebooks Telecom DC-DC converters All power supplies 详见:http://www.onsemi.cn/PowerSolutions/product.do?id=NCP1217A
供应8-Mb 2.7-V 串行固件Flash 存储器AT26DF081A-SU Features• Single 2.7V - 3.6V Supply• Serial Peripheral Interface (SPI) Compatible– Supports SPI Modes 0 and 3• 70 MHz Maximum Clock Frequency• Flexible, Uniform Erase Architecture– 4-Kbyte Blocks– 32-Kbyte Blocks– 64-Kbyte Blocks– Full Chip Erase• Individual Sector Protection with Global Protect/Unprotect Feature– One 32-Kbyte Top Boot Sector– Two 8-Kbyte Sectors– One 16-Kbyte Sector– Fifteen 64-Kbyte Sectors• Hardware Controlled Locking of Protected Sectors• Flexible Programming Options– Byte/Page Program (1 to 256 Bytes)– Sequential Program Mode Capability• Automatic Checking and Reporting of Erase/Program Failures• JEDEC Standard Manufacturer and Device ID Read Methodology• Low Power Dissipation– 5 mA Active Read Current (Typical)– 25 μA Deep Power-down Current (Typical)• Endurance: 100,000 Program/Erase Cycles• Data Retention: 20 Years• C...