TDA16888

Product Summary

The TDA16888 comprises the complete 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. The TDA16888 is protected against overvoltages typically above 17.5 V by an internal Zener diode Z3 at pin 9 (VCC) and against electrostatic discharging at any pin by special ESD circuitry. As soon as the supply voltage has stabilized, which is determined by the TDA16888 power management and its soft-start feature at pin 13 (PWM SS), the PWM section will be enabled by means of its internal bias control.

Parametrics

TDA16888 absolute maximum ratings: (1)VCC supply voltage VS: - 0.3 to VZ3 V; (2)Zener current of Z3 IZ3: - 50 mA; (3)VREF voltage VVREF: - 0.3 to 8 V; (4)ROSC voltage VROSC: - 0.3 to 8 V; (5)SYNC voltage VSYNC: - 0.3 to8 V; (6)PFC FB voltage VPFC FB: - 0.3 to 8 V; (7)PFC IAC voltage VPFC IAC: - 0.3 to15 V; (8)AUX VS voltage VAUX VS: - 0.3 to 8 V; (9)PFC VS voltage VPFC VS: - 0.3 to 8 V; (10)PFC CL voltage VPFC CL: - 1 to 3 V; (11)PWM SS voltage VPWM SS: - 0.3 to 8 V; (12)PWM IN voltage VPWM IN: - 0.3 to 8 V; (13)PWM RMP voltage VPWM RMP: - 0.3 to 8 V; (14)PWM CS voltage VPWM CS: - 0.3 to 3 V; (15)PFC VC voltage VPFC VC: - 0.3 to 8 V; (16)PFC VC current IPFC VC: - 20 to 20 mA ; (17)PFC CS current IPFC CS: - 5 to 5 mA ; (18)GND S current IGND S - 5 to 5 mA; (19)PFC CC voltage VPFC CC - 0.3 to 8 V; (20)PFC CC current IPFC CC - 20 to 20 mA; (21)Junction temperature TJ - 40 to 150 ℃.

Features

TDA16888 features: (1)IEC 1000-3 compliant; (2)Additional operation mode as auxiliary power supply; (3)Fast, soft switching totem pole gate drive (1 A); (4)Dual loop control (average current and voltage sensing); (5)Leading edge triggered pulse width modulation; (6)Peak current limitation; (7)Topologies of PFC preconverter are boost or flyback; (8)Continuous/discontinuous mode possible; (9)94% maximum duty cycle.

Diagrams