Description:

The NTE7166 is an integrated circuit in a 5-Lead Staggered TO3P type package and is specifically designed to satisfy the requirements for increased integration and reliability in off-line quasi-resonant flyback converters. This device incorporates a primary control and drive circuit with discrete avalanche-rated power MOSFETs.

Cycle-by-cycle current limiting, under-voltage lockout with hysteresis, over-voltage protection, and thermal shutdown protects the power supply during th normal overload an fault conditions. Over voltge protection and thermal shutdown are latched after a short delay. The latch may be reset by cycling the input supply. Low-current startup and a low-power standby mode selected from the secondary circuit completes a comprehensive suite of features.

Features:

• Flyback Operation with Quasi-Resonant Soft Switching for Low Power Dissipation and EMI

• Rugged Avalanche-Rated MOSFET

• Full Over-Current Protection (No Blanking)

• Under-Voltage Lockout with Hysteresis

• Over-Voltage Protection

• Direct Voltage Feedback

• Low Start-Up Current

• Low-Frequency, Low-Power Standby Operation