STCH03 STMicroelectronics

STCH03 Offline PWM controller for low standby adapters Datasheet - production data Input voltage feedforward compensation for mains-independent CC regulation Embedded thermal shutdown Intelligent frequency jitter for EMI suppression SO8 package SO8 Applications Features AC-DC chargers for smartphones, tablets, camcorders and other handheld equipment Advanced power management for ultra-low standby power consumption (under 10 mW at AC/DC adapters for STB, notebooks and 230 VAC) auxiliary power supplies Fully integrated primary side constant current USB power delivery fast charger output regulation (CC) Table 1. Device summary 650 V embedded HV start-up circuit with zero power consumption. Order codes Package Packaging Quasi-resonant (QR) zero-voltage-switching STCH03 (ZVS) operation Tube STCH03L Accurate and adjustable output OVP with SO8 STCH03TR options auto-restart (STCH03) or latched Tape and reel (STCH03L) after fault STCH03LTR Output undervoltage protection (UVP) with auto-restart Figure 1. Typical application RXW 9 & ,1 & ,1 *1 67&+ November 2019 DS12460 Rev 2 1/27 This is information on a product in full production. www.st.comContents STCH03 Contents 1 Description . 3 2 Pin connection and functions . 5 3 Electrical data 6 3.1 Absolute maximum ratings . 6 3.2 Thermal data . 6 4 Electrical characteristics . 7 5 Operation overview . 10 6 Application information . 12 6.1 High voltage start-up generator 12 6.2 Zero current detection and triggering block . 13 6.3 Peak current mode operation 14 6.4 Constant current operation 15 6.5 Voltage feedforward block 16 6.6 Burst-mode operation 17 6.7 Adaptive UVLO . 18 6.8 Gate-driver 19 6.9 Frequency jittering for EMI reduction 19 6.10 Overvoltage protection . 19 6.11 Output undervoltage protection 21 6.12 Overcurrent protection (OCP) . 22 6.13 Thermal shutdown protection 22 7 Package information 24 7.1 SO8 package information . 24 8 Revision history . 26 2/27 DS12460 Rev 2