ALTAIR05T-800 STMicroelectronics

ALTAIR05T-800 Off-line all-primary sensing switching regulator Datasheet - production data Output cable drop compensation SO16N package Applications AC-DC chargers for mobile phones and other hand-held equipments Features Compact SMPS that requires a precise Constant voltage and constant current current and/or voltage regulation output regulation (CV/CC) with no optocoupler Description Tight regulation also during heavy load The ALTAIR05T-800 is a high-voltage all-primary transients sensing switcher intended to operate directly 800 V avalanche rugged internal power from the rectified mains with minimum external section parts. It combines a low voltage, high Quasi-resonant (QR) operation performance PWM controller chip and an 800 V Low standby power consumption avalanche rugged power section in the same Automatic self-supply package. Input-voltage feedforward for mains- independent CC regulation Figure 1: Block diagram October 2016 DocID17957 Rev 2 1/27 www.st.com This is information on a product in full production. Contents ALTAIR05T-800 Contents 1 Device description ........................................................................... 3 2 Pin connection ................................................................................. 4 3 Maximum ratings ............................................................................. 6 3.1 Absolute maximum ratings ................................................................ 6 3.2 Thermal data ..................................................................................... 6 4 Electrical characteristics ................................................................ 7 5 Application information ................................................................ 11 5.1 Power section and gate driver ......................................................... 12 5.2 High-voltage start-up generator ....................................................... 12 5.3 Zero-current detection and triggering block ..................................... 13 5.4 Constant voltage operation ............................................................. 15 5.5 Constant-current operation ............................................................. 15 5.6 Voltage feedforward block ............................................................... 17 5.7 Cable drop compensation (CDC) .................................................... 18 5.8 Burst-mode operation at no-load or very light load .......................... 19 5.9 Soft-start and starter block .............................................................. 19 5.10 Hiccup mode OCP .......................................................................... 20 5.11 Layout recommendations ................................................................ 21 6 Typical application ........................................................................ 22 7 Package information ..................................................................... 23 7.1 SO16N package information ........................................................... 23 8 Order code ..................................................................................... 25 9 Revision history ............................................................................ 26 2/27 DocID17957 Rev 2