TDA16888 Datasheet | Infineon

High Performance Power bi Controller TDA 16888 Overview Features PFC Section - - - - - - - - - IEC 1000-3 pliant Additional operation mode as auxiliary power supply Fast, soft switching totem pole gate drive (1 A) Dual loop control (average current and voltage sensing) Leading edge triggered pulse width modulation Peak current limitation Topologies of PFC preconverter are boost or flyback Continuous/discontinuous mode possible 94% maximum duty cycle P-DIP-20-5 P-DSO-20-1 /-6 /-7 PWM Section - - - - - - - Improved current mode control Fast, soft switching totem pole gate drive (1 A) Soft-start management Trailing edge triggered pulse width modulation Topologies of PWM converter are feed forward or flyback 50% maximum duty cycle to prevent transformer saturation f PWM = f PFC Ordering Code Q67000-A9284-X201-K5 Q67000-A9310-A702 Package P-DIP-20-5 P-DSO-20-1 Type w TDA 16888 w TDA 16888 G w New type Data Sheet 2000-02-28 TDA 16888 Special Features - - - - - - - - - - High power factor Typical 50 µA start-up supply current Low quiescent current (15 m A) Undervoltage lockout with internal stand-by operation Internally synchronized fixed operating frequency ranging from 15 k Hz to 200 k Hz External synchronization possible Shutdown of both outputs externally triggerable Peak current limitation Overvoltage protection Average current sensing by noise filtering General Remarks The TDA 16888 prises the plete control for power factor controlled switched mode power supplies. With its PFC and PWM section being internally synchronized, it applies for off-line converters with input voltages ranging from 90 V to 270 V. While the preferred topologies of the PFC preconverter are boost or flyback, the PWM section can be designed as forward or flyback converter. In order to achieve minimal line current gaps the maximum duty cycle of the PFC is about 94%. The maximum duty cycle of the PWM, however, is limited to 50% to prevent transformer...