Overview
The NCP1200P100 is a PWM (Pulse Width Modulation) Current-Mode Controller designed by ON Semiconductor for low-power universal off-line supplies. This controller is housed in either an 8-pin SOIC or PDIP package and is optimized for ultra-compact switchmode power supplies. It is particularly suited for applications such as offline battery chargers, standby power supplies, and AC-DC wall adapters, offering reliable, safe, and efficient performance with minimal external components.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Regulator Topology | Flyback, Forward | Number of Outputs | 1 Output |
| Switching Frequency | 40 kHz, 60 kHz, 100 kHz | Maximum Output Current | 250 mA |
| Maximum Operating Temperature (°C) | +150 | Mounting Style | Through Hole |
| Collector-Emitter Saturation Voltage | 16 V | Fall Time | 28 ns |
| Rise Time | 67 ns | Factory Pack Quantity | 1000 |
| Unit Weight | 0.032805 oz | Maximum Duty Cycle | 80% |
Key Features
- No auxiliary winding operation
- Internal output short-circuit protection
- Extremely low no-load standby power
- Current-mode with skip-cycle capability
- Internal leading edge blanking
- 250 mA peak current source/sink capability
- Internally fixed frequency at 40 kHz, 60 kHz, and 100 kHz
- Direct optocoupler connection
- Built-in frequency jittering for lower EMI
- SPICE models available for transient and AC analysis
- Internal temperature shutdown
- Pb-free, halogen-free/BFR-free and RoHS compliant
Applications
- AC-DC adapters
- Offline battery chargers
- Auxiliary/ancillary power supplies (USB, appliances, TVs, etc.)
- Consumer electronics
- Lighting systems
- Industrial equipment
Q & A
- Q: What is the NCP1200P100 used for?
A: The NCP1200P100 is used in low-power universal off-line supplies, such as offline battery chargers, standby power supplies, and AC-DC wall adapters.
- Q: What are the key features of the NCP1200P100?
A: Key features include internal output short-circuit protection, extremely low no-load standby power, current-mode with skip-cycle capability, and built-in frequency jittering for lower EMI.
- Q: What are the typical applications of the NCP1200P100?
A: Typical applications include AC-DC adapters, offline battery chargers, auxiliary power supplies, consumer electronics, lighting systems, and industrial equipment.
- Q: What is the switching frequency of the NCP1200P100?
A: The switching frequency of the NCP1200P100 is internally fixed at 40 kHz, 60 kHz, or 100 kHz.
- Q: Is the NCP1200P100 RoHS compliant?
A: Yes, the NCP1200P100 is Pb-free, halogen-free/BFR-free and RoHS compliant.
- Q: What is the maximum operating temperature of the NCP1200P100?
A: The maximum operating temperature of the NCP1200P100 is +150°C.[
- Q: What package types are available for the NCP1200P100?
A: The NCP1200P100 is available in 8-pin SOIC and PDIP packages.[
- Q: Does the NCP1200P100 have internal temperature shutdown?
A: Yes, the NCP1200P100 has internal temperature shutdown.[
- Q: How does the NCP1200P100 handle low load conditions?
A: The NCP1200P100 automatically enters skip cycle mode when the current setpoint falls below a given value, providing excellent efficiency at light loads.[
- Q: What is the warranty period for the NCP1200P100 from Ovaga?
A: Ovaga offers a 1-year warranty on the NCP1200P100, covering any defects in materials and workmanship under normal use.[
