Datasheet4U Logo Datasheet4U.com

AN8021NS Datasheet External Excitation Flyback AC-dc Switching Power Supply Controller

Manufacturer: Panasonic

Overview: Voltage Regulators AN8021NS External excitation flyback AC-DC switching power supply control IC s Overview The AN8021S is a switching power supply control IC that controls the power supply from the primary side. It is optimal for relatively small switching power supplies. All rarely used functions have been removed from the AN8021S and as a result it is an extremely easy-to-use pact device. Furthermore, internal settings are implemented as many as we can, cost cut is possible with reduced external parts. 5.01±0.20 Unit: mm 8 5 (1.05) 4.30±0.20 6.40±0.20 0.15 –0.05 +0.10 0° to 10° 0.50±0.20 1 4 0.10±0.10 1.45±0.10 1.75max.

General Description

s Pin No.

1 2 3 Symbol VOUT VCC TIM/OVP Direct power MOSFET drive output Description Voltage Regulators Power supply.

This pin monitored, and has threshold voltages for startup, stop, OVP reset, and other functions.

Key Features

  • Supports operation at switching frequencies up to 700 kHz and achieves a 35 ns output rise time and a 25 ns output fall time.
  • Extremely low pre-startup current consumption of 70 µA (typical) allows a significantly smaller startup resistor to be used.
  • Totem pole circuit structure adopted in the output block.
  • Output current absolute maximum rating of ±1.0 A (peak) for direct driving of power MOSFET.
  • Pulse-by-pulse overcurrent protection circuit.

More Datasheets from Panasonic

Part Number Description
AN8021L AC-DC switching power supply controller
AN8021SB AC-DC switching power supply controller
AN8022L AC-DC switching power supply controller
AN8022SB AC-DC switching power supply controller
AN8025 3-pin Positive Output Low Dropout Voltage Regulator
AN8025M 3-pin Positive Output Low Dropout Voltage Regulator
AN8026 Self-excited RCC pseudo-resonance type AC-DC switching power supply controller
AN8027 AC-DC switching power supply controller
AN8028 Self-excited RCC pseudo-resonance type AC-DC switching power supply controller
AN8029 Self-excited RCC pseudo-resonance type AC-DC switching power supply controller

AN8021NS Distributor