Analog Devices, DAC 16 bit-, 1.5Msps, ±7LSB Serial (SPI/QSPI/Microwire), 8-Pin SOIC

Demonstration Board based on L6599

This is a 200W SMPSU reference design board, with wide-range mains operation and power-factor correction (PFC). Its electrical specification is tailored to a typical high-end application such as an LCD TV or PC monitor. The main features of this design are the very low no-load input consumption (<0.5W) and the very high global efficiency, better than 87% at full load and nominal mains voltage (115 to 230Vac). The circuit consists of three main blocks: the first is a front-end PFC pre-regulator based on the L6563 PFC controller. The second stage is a multi-resonant half-bridge converter whose control is implemented through an L6599 resonant controller. A further auxiliary flyback converter based on the VIPer12A-E off-line primary switcher completes the architecture. This third block is mainly intended for microprocessor supply and display power management operations.

Input mains range: 90 to 264Vac with frequencies between 45 & 65Hz
+24V @ 6A continuous operation
+12V @ 5A continuous operation
+3.3V @ 0.7A continuous operation
+5V @ 1A continuous operation
Stand-by mains consumption: Typical 0.5W @ 230Vac
Overall efficiency: better than 88% at full load
Mains harmonics: Compliance with EN61000-3-2 specifications
EMI: Compliance with EN55022-class B specifications
Safety: Compliance with EN60950 specifications
PCB single-layer: 132 x 265mm, mixed PTH/SMT technologies

PWM (Pulse Width Modulation) Controllers, STMicroelectronics