NCP1608: PFC Controller, Critical Conduction Mode, with a Transconductance Error Amplifier
The NCP1608 is an active power factor correction (PFC) controller specifically designed for use as a pre-converter in ac-dc adapters, electronic ballasts, and other medium power off-line converters (typically up to 350 W). It uses Critical Conduction Mode (CrM) to ensure near unity power factor across a wide range of input voltages and output power. The NCP1608 minimizes the number of external components by integrating safety features, making it an excellent choice for designing robust PFC stages.
Features- No Input Voltage Sensing Requirement
- High Precision Voltage Reference (±1.6% Over the Temperature Range)
- Wide Control Range for High Power Application (>150 W) Noise Immunity
- Integrated Undervoltage and Overvoltage Protection
- Pin-to-Pin Compatible with Industry Standards
- Accurate and Programmable On Time Limitation
- Transconductance Error Amplifier
- Very Low Startup Current Consumption (< 35 µA)
- Low Typical Operating Current Consumption (2.1 mA)
- Source 500 mA / Sink 800 mA Totem Pole Gate Driver
- Undervoltage Lockout with Hysteresis
- Overcurrent Protection
- This is a Pb-Free and Halide-Free Device
| Benefits- Reduced Standby Power Dissipation
- Accurate Output Voltage Regulation
- Improved Noise Immunity
- Open/Floating Feedback Loop Protection
- Second Source
- Accurate Maximum Output Power Limitation
|
Applications- Any Power Factor Correction Stage Less Than 350 W
| End Products- Solid State Lighting
- Electronic Light Ballast
- AC Adapters
- TVs and Monitors
- All Off-Line Appliances Requiring Power Factor Correction
- TVs and Monitors
|
Design & Development Tools (1)
Package Drawings (1)
Application Notes (2)
Simulation Models (2)
Evaluation Board Documents (5)
Data Sheets (1)
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description |
|---|
| NCP1608BOOSTGEVB | Active | Pb-free | 100 W Boost Evaluation Board |
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| NCP1608BDR2G | Active | Pb-free
Halide free | SOIC-8 | 751-07 | 1 | Tape and Reel | 2500 | $0.2 |
Specifications
| Product | PFC Mode | Frequency Operation | Control Mode | Topology | fSW Typ (kHz) | VCC Max (V) | Drive Cap. (mA) | UVLO (V) | Latch | UVP | Inhibition |
|---|
| NCP1608BDR2G | CRM | Variable | Voltage Mode | Step-Up | Variable | 20 | 500 / 800 | 9.5 - 12 | No | Yes | No |
