HLF UC2842 – Current-Mode PWM Controller (DIP8) Input Voltage: 16V – 30V | Operating Temperature: 0°C to +70°C (UC3842), –40°C to +85°C (UC2842) | Through-Hole Package

The HLF UC2842 (DIP8) is a high-performance current-mode PWM controller designed for use in off-line and DC-DC converter applications. It combines a precision 5V reference, high-gain error amplifier, oscillator, and high-current output stage to drive power MOSFETs or BJTs directly. The UC2842 provides excellent dynamic performance and protection features in a compact through-hole package.

Key Features:

• Function: Current-Mode PWM Controller

• Input Voltage Range: 16V – 30V

• Operating Temperature:

  • UC3842: 0°C to +70°C

  • UC2842: –40°C to +85°C

• Package Type: DIP8 (Dual In-line Package)

• Mounting Type: Through-Hole

• Precision 5V Reference (±1%)

• Low Start-Up Current (0.17 mA typical)

• High-Current Totem-Pole Output for Direct MOSFET Drive

• Under-Voltage Lockout (UVLO) Protection

• Fixed Frequency (Typically 100 kHz)

• Fast Transient Response with Current-Mode Control

Applications:

• Off-Line and DC-DC Power Supplies

• Battery Chargers

• LED Power Drivers

• Switch-Mode Power Supplies (SMPS)

• Industrial and Consumer Electronics