CYPAP212A1-14SXIT

CYPAP212A1-14SXIT is an EZ-PD™ PAG2P primary-side startup controller. It is Infineon’s second-generation integrated primary-side startup controller for AC/DC applications targeting the mobile power adapter segment. EZ-PD™ PAG2P interfaces with the AC mains rectified output on the primary side and receives the necessary PWM signal from the secondary side to provide a regulated output voltage. EZ-PD™ PAG2P is designed to operate in two configurations: a half-bridge running in a non-complementary state (active clamp flyback) or a low-side switch configuration with a snubber circuit (QR, DCM, CCM). It is designed to complement a secondary controlled AC/DC flyback converter topology. In this topology, voltage and current regulation is performed by the secondary controller (EZ-PD™ PAG2S). EZ-PD™ PAG2P is responsible for providing the start-up function, driving the primary side FET as well as responding to fault conditions.

• Works across universal AC mains input from 85VAC to 265VAC
• Low-side gate driver to drive primary side FET, integrated high-voltage start-up and shunt regulator
• A logic-level gate driver to control external high-side floating gate driver IC (ACF)
• Free-running oscillator with PWM generator for start-up
• Line under voltage protection (UVP) and line overvoltage protection (OVP)
• Secondary overvoltage protection via auxiliary winding (SOVP)
• Overcurrent protection (OCP), short-circuit protection (SCP), VCC pin short protection (VCCPSP)
• A novel dual-output PET receiver is used to drive both high/low side switch using a single PET
• Frequency is 36KHz typical, duty cycle is 70% maximum, X-cap mode
• Industrial temperature range from -40°C to +85°C, 14-pin SOIC package