Overview
The NCP1606ADR2G, produced by ON Semiconductor, is an active power factor controller designed for use as a pre-converter in various applications such as electronic ballasts, AC-DC adapters, and other medium power offline converters up to 300 W. It employs a Critical Conduction Mode (CRM) scheme to achieve unity power factor across a wide range of input voltages and power levels. The device is housed in a SOIC-8 package, minimizing the number of external components required. It integrates comprehensive safety protection features, making it an excellent choice for robust PFC stages.
Key Specifications
| Parameter | Unit | Typical | Minimum | Maximum |
|---|---|---|---|---|
| Startup Current Consumption | μA | - | - | ≤ 40 |
| Typical Operating Current | mA | 2.1 | - | - |
| Totem Pole Gate Driver Current | mA | - | -500 | +800 |
| High Precision Voltage Reference | V | 2.5 ± 1.6% | - | - |
| Operating Junction Temperature Range | °C | - | -40 | +125 |
| Maximum Junction Temperature | °C | - | - | 150 |
| Storage Temperature Range | °C | - | -65 | +150 |
| Lead Temperature (Soldering, 10 s) | °C | - | - | 300 |
Key Features
- Unity Power Factor: Achieves high power factor ratios without the need for input voltage sensing.
- No Need for Input Voltage Sensing: Reduces complexity and component count.
- Latching PWM for Cycle by Cycle On Time Control (Voltage Mode): Ensures precise control over the switching cycle.
- High Precision Voltage Reference: ±1.6% over temperature ranges for accurate output voltages.
- Very Low Startup Current Consumption: Less than 40 μA during startup phase.
- Powerful Output Driver: -500 mA / +800 mA totem pole gate driver for rapid turn-on and turn-off times.
- Programmable Overvoltage Protection (OVP): Adjustable OVP to protect against excessive output overshoots.
- Protection against Open Loop (Undervoltage Protection): Disables the PFC stage when the output voltage is excessively low.
- Accurate and Programmable On Time Limitation: Uses an external capacitor and current source to generate the on time.
Applications
- Electronic Light Ballasts: Ideal for lighting systems requiring high power factor correction.
- AC Adapters, TVs, Monitors: Suitable for various consumer electronics needing efficient power conversion.
- All Offline Appliances Requiring Power Factor Correction: Applicable to a wide range of devices that need to comply with power factor standards.
Q & A
- What is the primary function of the NCP1606ADR2G?
The NCP1606ADR2G is an active power factor controller designed to achieve unity power factor in medium power offline converters.
- What is the maximum power handling capacity of the NCP1606ADR2G?
The device is designed for applications up to 300 W.
- What is the package type of the NCP1606ADR2G?
The device is housed in a SOIC-8 package.
- What is the typical operating current of the NCP1606ADR2G?
The typical operating current is 2.1 mA.
- What safety features does the NCP1606ADR2G include?
The device includes programmable overvoltage protection, undervoltage protection, overcurrent limitation, and other comprehensive safety features.
- How does the NCP1606ADR2G achieve unity power factor?
It employs a Critical Conduction Mode (CRM) scheme without the need for input voltage sensing.
- What is the precision of the voltage reference in the NCP1606ADR2G?
The voltage reference has a precision of ±1.6% over temperature ranges.
- What is the startup current consumption of the NCP1606ADR2G?
The startup current consumption is less than 40 μA.
- What are the typical applications of the NCP1606ADR2G?
It is used in electronic light ballasts, AC adapters, TVs, monitors, and other offline appliances requiring power factor correction.
- How does the NCP1606ADR2G protect against overvoltage and undervoltage conditions?
The device includes programmable overvoltage protection and undervoltage protection to safeguard against these conditions.
