UC3843BVNG - onsemi

Manufacturer Part Number

UC3843BVNG

Manufacturer

onsemi

Introduction

The UC3843BVNG is a high-performance fixed frequency current-mode controller.

Product Features and Performance

Current mode operation for improved transient response, fixed frequency operation, internal 500kHz oscillator, soft-start function, under-voltage lockout with hysteresis, low startup and operating current.

Product Advantages

Efficient power supply control, capability for high-frequency operation, enhanced system response and reliability, low power consumption in standby.

Key Technical Parameters

Output Type: Transistor Driver, Step-Up, Step-Up/Step-Down, Voltage Supply: 7.6V ~ 30V, Frequency - Switching: Up to 500kHz, Duty Cycle (Max): 96%, Operating Temperature: -40°C ~ 105°C.

Quality and Safety Features

Built-in under-voltage lockout with hysteresis, thermal shutdown capability for safety.

Compatibility

Positive, isolation capable output configuration, boost and flyback topologies, suitable for through-hole mounting.

Application Areas

Switching power supplies, DC-DC converters, battery chargers, power factor correction.

Product Lifecycle

Obsolete - check for replacement or alternative solutions if new designs are considered.

Several Key Reasons to Choose This Product

Proven reliability and performance in power management, support for a wide range of supply voltages, high duty cycle for efficient operation, thermal shutdown for safety, suitable for a variety of applications due to its flexible topology.