Overview
The NCP1608BDR2G is an active power factor correction (PFC) controller designed by onsemi for use as a pre-converter in various applications such as ac-dc adapters, electronic ballasts, and other medium power off-line converters. It operates in Critical Conduction Mode (CrM) to ensure near unity power factor across a wide range of input voltages and output power, typically up to 350 W. This controller minimizes the number of external components by integrating comprehensive safety features, making it an excellent choice for designing robust PFC stages.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SOIC-8 | |
| Operating Voltage | 9.5 - 20 | V |
| Drive Capability | Source 500 mA / Sink 800 mA | mA |
| Undervoltage Lockout (UVLO) | 9.5 - 12 | V |
| Startup Current Consumption | < 35 µA | µA |
| Typical Operating Current Consumption | 2.1 | mA |
| Voltage Reference Accuracy | ±1.6% over the temperature range | |
| Control Mode | Voltage Mode | |
| PFC Mode | Critical Conduction Mode (CrM) |
Key Features
- Near Unity Power Factor without input voltage sensing requirement.
- High Precision Voltage Reference (±1.6% over the temperature range).
- Wide Control Range for high power applications (>150 W) with noise immunity.
- Accurate and Programmable On Time Limitation.
- Transconductance Error Amplifier.
- Very Low Startup Current Consumption (< 35 µA) and Low Typical Operating Current Consumption (2.1 mA).
- Source 500 mA / Sink 800 mA Totem Pole Gate Driver.
- Undervoltage Lockout with Hysteresis and Overcurrent Protection.
- Integrated Overvoltage Protection (OVP) and Undervoltage Protection (UVP).
- Protection Against Open Feedback Loop.[li>
- Pb-Free and Halide-Free Device.[li>
Applications
- Solid State Lighting.[li>
- Electronic Light Ballast.[li>
- AC Adapters, TVs, Monitors, and other off-line appliances requiring power factor correction.[li>
Q & A
- What is the primary function of the NCP1608BDR2G?
The NCP1608BDR2G is an active power factor correction (PFC) controller designed for use as a pre-converter in ac-dc adapters, electronic ballasts, and other medium power off-line converters.
- What is the operating voltage range of the NCP1608BDR2G?
The operating voltage range is 9.5 - 20 V.
- What is the drive capability of the NCP1608BDR2G?
The drive capability is Source 500 mA / Sink 800 mA.
- What is the startup current consumption of the NCP1608BDR2G?
The startup current consumption is less than 35 µA.
- What safety features does the NCP1608BDR2G include?
The NCP1608BDR2G includes overvoltage protection (OVP), undervoltage protection (UVP), overcurrent protection, and protection against open feedback loop.
- What is the typical operating current consumption of the NCP1608BDR2G?
The typical operating current consumption is 2.1 mA.
- What is the accuracy of the voltage reference in the NCP1608BDR2G?
The voltage reference accuracy is ±1.6% over the temperature range.
- Is the NCP1608BDR2G Pb-Free and Halide-Free?
- What is the control mode of the NCP1608BDR2G?
The control mode is Voltage Mode.
- What is the PFC mode of the NCP1608BDR2G?
The PFC mode is Critical Conduction Mode (CrM).
