Overview
The NCP13992AFDR2G is a high-performance current mode controller designed for half-bridge resonant converters, manufactured by onsemi. This controller integrates 600 V gate drivers, simplifying the layout and reducing the external component count. It features a suite of protection mechanisms and advanced control schemes to ensure safe and efficient operation in various applications.
Key Specifications
| Parameter | Unit | Typical | Minimum | Maximum |
|---|---|---|---|---|
| Operating Frequency | kHz | 20 - 750 | 20 | 750 |
| VCC Supply Voltage | V | 12 | 9 | 20 |
| Controller Supply Current in Skip-Mode | μA | 550 | 500 | 600 |
| Initial Mlower DRV On-Time Duration | μs | 4.9 | 2.32 | 18.64 |
| Initial Mupper DRV On-Time Duration | μs | 0.72 | 0.15 | 1.55 |
| Brown-Out Turn-Off Threshold | V | 1.000 | 0.965 | 1.035 |
| Over-Temperature Protection | °C | - | - | 125 |
Key Features
- High-Frequency Operation from 20 kHz up to 750 kHz
- Current Mode Control Scheme
- Automatic Dead-Time with Maximum Dead-Time Clamp
- Dedicated Startup Sequence for Fast Resonant Tank Stabilization
- Light Load Operation Mode for Improved Efficiency
- Quiet Skip Operation Mode to Minimize Transformer Acoustic Noise
- Latched or Auto-Recovery Overload Protection
- Latched or Auto-Recovery Output Short Circuit Protection
- Latched Input for Severe Fault Conditions (e.g., OVP or OTP)
- Out of Resonance Switching Protection
- Open Feedback Loop Protection
- Precise Brown-Out Protection
- PFC Stage Operation Control According to Load Conditions
- Startup Current Source with Extremely Low Leakage Current
- Dynamic Self-Supply (DSS) Operation in Off-Mode or Fault Modes
- Pin to Adjacent Pin / Open Pin Fail Safe
- Pb-Free Devices
Applications
- Adapters and Offline Battery Chargers
- Flat Panel Display Power Converters
- Computing Power Supplies
- Industrial and Medical Power Sources
Q & A
- What is the operating frequency range of the NCP13992AFDR2G?
The operating frequency range is from 20 kHz to 750 kHz. - What is the maximum VCC supply voltage for the NCP13992AFDR2G?
The maximum VCC supply voltage is 20 V. - What protection features does the NCP13992AFDR2G include?
The controller includes overload protection, over-current protection, brown-out detection, open optocoupler detection, automatic dead-time adjust, over-voltage (OVP), and over-temperature (OTP) protections. - How does the quiet skip operation mode work?
The quiet skip operation mode minimizes transformer acoustic noise by adjusting the switching pattern under light load conditions. - What is the purpose of the PFC mode output?
The PFC mode output provides supply voltage for the PFC front stage controller and/or enables the Vbulk sensing network HV switch. - What is the brown-out turn-off threshold for the NCP13992AFDR2G?
The brown-out turn-off threshold is approximately 1.000 V. - Does the NCP13992AFDR2G support dynamic self-supply operation?
Yes, it supports dynamic self-supply (DSS) operation in off-mode or fault modes. - What are the typical applications for the NCP13992AFDR2G?
Typical applications include adapters and offline battery chargers, flat panel display power converters, computing power supplies, and industrial and medical power sources. - Is the NCP13992AFDR2G a Pb-free device?
Yes, the NCP13992AFDR2G is a Pb-free device. - How does the startup current source function in the NCP13992AFDR2G?
The startup current source has an extremely low leakage current and is used for startup and dynamic self-supply functions.
