Overview
The NCP1392DDR2G, produced by onsemi, is a self-oscillating high-voltage MOSFET driver designed primarily for applications using half-bridge topology. This device is part of the NCP1392B/D series and is known for its high-voltage technology, allowing it to operate with bulk voltages up to 600 V. The driver features an adjustable operating frequency range from 25 kHz to 480 kHz, which can be set using a single resistor. It also includes adjustable Brown-out protection, internal PFC delay timers, and fixed dead time to prevent shoot-through currents.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Frequency Range | 25 kHz | - | 480 kHz | - |
| Minimum Frequency Adjust Accuracy | - | ±3% | - | - |
| Fixed Dead Time (B Version) | 540 ns | 610 ns | 720 ns | - |
| Fixed Dead Time (D Version) | 260 ns | 305 ns | 360 ns | - |
| PFC Delay Timer | - | 100 ms / 12.6 ms | - | - |
| Startup Current | - | 50 µA | - | - |
| Peak Current Sink / Source Drive Capability | - | 1 A / 0.5 A | - | - |
| Bulk Voltage Operation | - | - | 600 V | - |
| Internal Temperature Shutdown | - | - | 140°C | - |
| Package | - | - | SOIC-8 (Pb-Free) | - |
Key Features
- Wide Operating Frequency Range: Adjustable from 25 kHz to 480 kHz using a single resistor.
- Fixed Dead Time: Helps in preventing cross-conduction between the upper and lower power transistors.
- Adjustable Brown-out Protection: Ensures the application operates within the desired bulk voltage range.
- Internal PFC Delay Timers: 100 ms or 12.6 ms delay to ensure bulk voltage stabilization.
- Non-latched Enable Input: Stops output drivers immediately when the BO terminal voltage exceeds the threshold.
- Internal 16 V VCC Clamp: Regulates the VCC supply.
- Low Startup Current: 50 µA.
- Peak Current Sink / Source Drive Capability: 1 A / 0.5 A.
- Internal Temperature Shutdown: Protects the device from overheating.
Applications
- Flat Panel Display Power Converters
- Low Cost Resonant SMPS
- High Power AC/DC Adapters for Notebooks
- Offline Battery Chargers
- Lamp Ballasts
Q & A
- What is the operating frequency range of the NCP1392DDR2G? The operating frequency range is adjustable from 25 kHz to 480 kHz.
- How is the operating frequency adjusted? The operating frequency can be adjusted using a single resistor connected to the Rt pin.
- What is the purpose of the Brown-out protection? The Brown-out protection ensures the application operates within the desired bulk voltage range.
- What are the PFC delay timer values? The PFC delay timers are 100 ms or 12.6 ms.
- What is the maximum bulk voltage the device can handle? The device can operate with bulk voltages up to 600 V.
- What is the package type of the NCP1392DDR2G? The device is packaged in an SOIC-8 (Pb-Free) package.
- What is the internal temperature shutdown value? The internal temperature shutdown value is 140°C.
- What is the peak current sink/source drive capability? The peak current sink/source drive capability is 1 A / 0.5 A.
- Does the device have an internal VCC clamp? Yes, the device has an internal 16 V VCC clamp.
- What is the startup current of the device? The startup current is 50 µA.
