UC3842AN, Current Mode PWM Controller, DIP-8 Package Type

The UC3842AN is a high-performance fixed frequency current-mode PWM controller ideally suited for off-line and DC-to-DC converter applications. Featuring a low start-up current and optimized for minimizing external component count, this device integrates a trimmed oscillator for tight frequency control and includes a precision bandgap reference, undervoltage lockout (UVLO), current sensing comparator, and a high-current totem pole output. Its internal architecture ensures improved line regulation, enhanced loop gain, and precise duty cycle clamping, which makes it especially suited for power supplies that demand efficiency, reliability, and cost-effectiveness.

Key Features:

• Optimized for off-line and DC-to-DC converters
• Trimmed oscillator for precise frequency control
• Undervoltage lockout with hysteresis
• Low startup and operating current
• High current totem pole output
• Internally trimmed bandgap reference

Additional Specifications:

• Package Type: DIP-8
• IC type: Current Mode PWM Controller
• Mounting Style: Through Hole