Description

NCP1612ADR2G

Description

The NCP1612ADR2G is a high-performance, off-line switch-mode power supply controller for high-power applications. This device is designed to work in flyback, forward, or quasi-resonant converters.

Key Features

• High voltage startup
• Low startup current
• Fixed frequency operation
• Adjustable overcurrent protection
• Adjustable undervoltage protection
• High current drive capability
• Voltage mode control
• Frequency modulation for low EMI
• High efficiency

Parameters

• Part Number: NCP1612ADR2G
• Package Type: SOIC-16
• Operating Frequency: 100 kHz to 1 MHz
• Startup Voltage: 16 V
• Startup Current: 250 µA
• Input Voltage: 85 V to 265 V
• Gate Drive: 1.5 A
• Overcurrent Protection: Adjustable
• Undervoltage Protection: Adjustable
• Operating Temperature: -40°C to 125°C

Block Diagram

The NCP1612ADR2G block diagram consists of the following components:

• High voltage startup circuit
• Low startup current circuit
• Fixed frequency oscillator
• Voltage mode control circuit
• Overcurrent protection circuit
• Undervoltage protection circuit
• Gate drive circuit

Pin Description

• PIN 1: VCC
• PIN 2: GND
• PIN 3: RT
• PIN 4: CT
• PIN 5: FB
• PIN 6: OVP
• PIN 7: UVP
• PIN 8: OCP
• PIN 9: GATE
• PIN 10: SENSE
• PIN 11: CS
• PIN 12: RSENSE
• PIN 13: NC
• PIN 14: NC
• PIN 15: NC
• PIN 16: VREF

Application

The NCP1612ADR2G is designed for use in a wide range of applications, including:

• Flyback converters
• Forward converters
• Quasi-resonant converters
• Power supplies for consumer electronics
• Power supplies for industrial equipment
• Power supplies for medical devices

Datasheet

For more information, please refer to the NCP1612ADR2G datasheet.