Housed in SOIC?8 or PDIP?8 package, the NCP1203 represents a major leap toward ultra?compack Switch mode Power Supplies and represents an excellent candidate to replace the UC384X devices. Due to its proprietary SMARTMOS? Very High Voltage Technology, the circuit allows the implementation of complete off?line AC?DC adapters, battery charger and a high?power SMPS with few external components. With an internal structure operating at a fixed 40 kHz, 60 kHz or 100 kHz switching frequency, the controller features a high?voltage startup FET which ensures a clean and loss?less startup sequence. Its current?mode control naturally provides good audio?susceptibility and inherent pulse?by?pulse control. When the current setpoint falls below a given value, e.g. the output power demand diminishes, the IC automatically enters the so ?called skip cycle mode and provides improved efficiency at light loads while offering excellent performance in standby conditions. Because this occurs at a user adjustable low peak current, no acoustic noise takes place. The NCP1203 also includes an efficient protective circuitry which, in presence of an output over load condition, disables the output pulses while the device enters a safe burst mode, trying to restart. Once the default has gone, the device auto?recovers. Finally, a temperature shutdown with hysteresis helps building safe and robust power supplies.
NCP1203D60R2G SOP
₹62.00 (Excl. GST 18%)
Availability: In stock
- 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
Weight | 0.1 kg |
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Dimensions | 3 × 3 × 3 cm |
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