NCP1203D60R2G SOP

NCP1203D60R2G SOP

Encased in SOIC-8 or PDIP-8 packages, the NCP1203 marks a significant advancement towards ultra-compact switch-mode power supplies and is an excellent alternative to UC384X devices. Owing to its proprietary SMARTMOS™ Very High Voltage Technology, this circuit enables the creation of complete offline AC-DC adapters, battery chargers, and high-power SMPS with minimal external components. Operating internally at a fixed switching frequency of 40 kHz, 60 kHz, or 100 kHz, the controller boasts a high-voltage startup FET that guarantees a smooth and efficient startup sequence. Its current-mode control offers excellent audio susceptibility and consistent pulse-by-pulse control. When the current setpoint drops below a certain threshold, for instance, when the output power demand decreases, the IC enters the skip cycle mode, enhancing efficiency under light loads and ensuring superior standby performance. This happens at a user-adjustable low peak current, preventing any acoustic noise. The NCP1203 also features a robust protective circuitry that, in the event of an output overload, deactivates the output pulses and initiates a safe burst mode to attempt a restart. After the fault is cleared, the device automatically recovers. Additionally, a temperature shutdown with hysteresis contributes to the creation of reliable and durable power supplies.

Features

• High−Voltage Startup Current Source
• Auto−Recovery Internal Output Short−Circuit Protection
• Extremely Low No−Load Standby Power
• Current−Mode with Adjustable Skip−Cycle Capability
• Internal Leading Edge Blanking
• 250 mA Peak Current Capability
• Internally Fixed Frequency at 40 kHz, 60 kHz and 100 kHz
• Direct Optocoupler Connection
• Undervoltage Lockout at 7.8 V Typical
• SPICE Models Available for TRANsient and AC Analysis
• Pin to Pin Compatible with NCP1200
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant

Package Includes

1 x NCP1203D60R2G SOP.