2A20112A Datasheet | Renesas

Description The R2A20112A controls a boost converter to provide an active power factor correction. The R2A20112A adopts critical conduction mode for power factor correction and realizes high efficiency and a low switching noise by zero current switching. Interleaving function improves ripple current on input or output capacitor by 180 degrees phase shift. Soft-star, the feedback loop short detection, two mode over-voltage-protection, over-current-protection, Over current ON/OFF timer protection for boost Diode short and slave ZCD open detection are built in the R2A20112A, and can constitute a power supply system of high reliability with few external parts. Features - Absolute Maximum Ratings ⎯ Supply voltage Vcc: 24 V ⎯ Junction temperature Tj: - 40 to +150°C - Electrical Characteristics ⎯ VREF output voltage Vref: 5.0 V ± 1.5% ⎯ UVLO operation start voltage Vuvlh: 10.5 V ± 0.7 V ⎯ UVLO operation shutdown voltage Vuvll: 9.3 V ± 0.5 V ⎯ UVLO hysteresis voltage Hysuvl: 1.2 V ± 0.5 V - Functions ⎯ Boost converter control with critical conduction mode ⎯ Interleaving control ⎯ Soft start function for the reference voltage of Error Amp ⎯ Two mode PFC output Over-voltage-protection Mode1: Dynamic OVP corresponding to a voltage rise by dynamic load change. Mode2: Static OVP corresponding to over-voltage in stable. ⎯ PFC output Dynamic-under-voltage-protection (DUVP) ⎯ Feedback loop open/short detection ⎯ Master and Slave independence over-current-protection ⎯ 280 μs restart timer ⎯ Slave ZCD signal open detection ⎯ Over current ON/OFF timer protection for boost Diode short - Package ⎯ Pb-free SOP-16 Ordering Information Part No. R2A20112ASPW0 Package Name FP-16DAV Package Code PRSP0016DH-B Package Abbreviation SP Taping Abbreviation (Quantity) W (2,000 pcs/reel) R03DS0047EJ0201 Rev.2.01 Jan 08, 2016 Page 1 of 8 R2A20112ASP Pin Arrangement ZCD-M 1 ZCD-S 2 TM 3 VREF 4 SGND 5 RAMP 6 RT 7 P 8 (Top view) 16 VCC 15 GD-M 14 PGND 13 GD-S 12 OCP-M 11 OCP-S 10 SS 9...