Overview
The NCL30060B2DR2G, produced by onsemi, is a switch-mode power supply controller designed for low to medium power single-stage power factor (PF) corrected LED drivers. It utilizes a constant on-time control method to ensure near unity power factor across a wide range of input voltages and output power. This controller is suitable for both isolated flyback and buck topologies and features a robust set of protection mechanisms to ensure safe operation under various fault conditions.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | VCC | -0.3 | - | 30 | V |
| High Voltage | VHV | -0.3 | - | 700 | V |
| Feedback Voltage | VFB | -0.3 | - | 10 | V |
| Current Sense/ZCD Voltage | VCS/ZCD | -0.9 | - | 12.4 | V |
| Maximum On-Time | ton(MAX) | 27.5 | - | - | μs |
| Thermal Shutdown | TSHDN | - | 160 | - | °C |
| Supply Current | ICC | - | 20 | - | mA |
Key Features
- Built-In High Voltage Startup Circuit: The NCL30060 integrates a 700 V startup regulator, eliminating the need for external startup components and reducing no-load power consumption.
- Constant On-Time Control: Ensures near unity power factor across a wide range of input voltages and output power.
- Robust Protection Features: Includes overvoltage protection, short circuit detection, thermal shutdown, and brown-out protection (except for B1 and B3 options).
- EMI Reduction: The on-time is internally modulated to reduce the EMI signature by spreading it over a wide range of frequencies.
- Flexible Topology Support: Suitable for both isolated flyback and buck topologies.
Applications
The NCL30060B2DR2G is primarily used in LED lighting applications that require high power factor correction and efficient power management. It is suitable for a variety of lighting solutions, including residential, commercial, and industrial LED lighting systems. Additionally, it can be used in other low to medium power applications where high efficiency and reliability are crucial.
Q & A
- What is the primary function of the NCL30060B2DR2G? The primary function is to act as a switch-mode power supply controller for low to medium power single-stage power factor corrected LED drivers.
- What are the supported topologies for the NCL30060B2DR2G? It supports both isolated flyback and buck topologies.
- What is the maximum high voltage the NCL30060B2DR2G can handle? The maximum high voltage (VHV) is 700 V.
- How does the NCL30060B2DR2G reduce EMI? It reduces EMI by internally modulating the on-time, spreading the EMI signature over a wide range of frequencies.
- What protection features are included in the NCL30060B2DR2G? It includes overvoltage protection, short circuit detection, thermal shutdown, and brown-out protection (except for B1 and B3 options).
- What is the thermal shutdown temperature for the NCL30060B2DR2G? The thermal shutdown temperature is 160°C.
- How does the startup circuit work in the NCL30060B2DR2G? The startup circuit uses a constant current source to charge the VCC capacitor from the high voltage input terminal, eliminating the need for external startup components.
- What is the maximum on-time for the NCL30060B2DR2G? The maximum on-time (ton(MAX)) is typically 27.5 μs.
- Does the NCL30060B2DR2G support auto-recovery from fault states? Yes, it can auto-recover from fault states such as short circuits if the fault is removed.
- What is the supply current for the NCL30060B2DR2G? The supply current (ICC) is typically 20 mA.
