Overview
The NCP1654BD65R2G is a controller for Continuous Conduction Mode (CCM) Power Factor Correction step-up preconverters, manufactured by onsemi. This controller is designed to control the power switch conduction time using Pulse Width Modulation (PWM) in a fixed frequency mode, dependent on the instantaneous coil current. It is housed in a SO-8 package, which minimizes the number of external components and simplifies the Power Factor Correction (PFC) implementation. The NCP1654 integrates various safety features, making it a robust and compact solution for PFC stages.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Switching Frequency | 65 kHz | kHz |
| Control Mode | Current Mode | |
| Topology | Step-Up | |
| Drive Capability | ±1.5 A | A |
| Undervoltage Lockout (UVLO) | 10.5 - 13.75 V | V |
| Overcurrent Protection Threshold | 185 - 215 μA | μA |
| Package Type | SOIC-8 | |
| Operating Temperature Range | -40°C to +125°C | °C |
| Startup Current | < 75 μA | μA |
| Shutdown Current | < 400 μA | μA |
Key Features
- IEC61000-3-2 Compliant
- Average Current Continuous Conduction Mode
- Fast Transient Response
- Very Few External Components Required
- Very Low Startup and Shutdown Currents
- Low Operating Consumption
- Accurate Fully Integrated Oscillator (65/133/200 kHz)
- Latching PWM for Cycle-by-Cycle Duty-Cycle Control
- Internally Trimmed Internal Reference
- Undervoltage Lockout with Hysteresis
- Overvoltage Protection and Undervoltage Detection
- Brown-Out Detection and Inrush Currents Detection
- Soft Start Capability
Applications
- Power Factor Correction Stage
- Desktop PCs
- Servers
Q & A
- What is the primary function of the NCP1654BD65R2G?
The NCP1654BD65R2G is a controller for Continuous Conduction Mode (CCM) Power Factor Correction step-up preconverters.
- What is the switching frequency of the NCP1654BD65R2G?
The switching frequency is 65 kHz.
- What package type is the NCP1654BD65R2G housed in?
The NCP1654BD65R2G is housed in a SOIC-8 package.
- What are the key safety features of the NCP1654BD65R2G?
The key safety features include overcurrent protection, overpower limitation, brown-out detection, overvoltage protection, undervoltage detection, and inrush current detection.
- What is the operating temperature range of the NCP1654BD65R2G?
The operating temperature range is -40°C to +125°C.
- Is the NCP1654BD65R2G compliant with any specific standards?
Yes, it is compliant with IEC61000-3-2.
- What is the startup current of the NCP1654BD65R2G?
The startup current is less than 75 μA.
- What is the shutdown current of the NCP1654BD65R2G?
The shutdown current is less than 400 μA.
- Does the NCP1654BD65R2G have a soft start capability?
Yes, it has a soft start capability.
- What are some typical applications of the NCP1654BD65R2G?
Typical applications include power factor correction stages in desktop PCs and servers.
