Overview
The NCP1615D2DR2G, produced by onsemi, is a high voltage, high efficiency Power Factor Correction (PFC) controller. This device is designed to drive PFC boost stages using the innovative Current Controlled Frequency Foldback (CCFF) method. The CCFF method ensures maximum efficiency at both nominal and light load conditions, significantly reducing standby losses. The controller operates in critical conduction mode (CrM) and features a high voltage start-up circuit, eliminating the need for external start-up components. It is housed in a SOIC-16 package, making it suitable for robust and compact PFC stages with minimal external components.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| High Voltage Start-Up Circuit Input Voltage | -0.3 | - | 700 | V |
| Supply Input Voltage (VCC) | -0.3 | - | 30 | V |
| Driver Maximum Voltage (DRV) | -0.3 | - | VDRV | V |
| Driver Maximum Current (DRV) | -500 | - | 800 | mA |
| Maximum Operating Junction Temperature | -40 | - | 150 | °C |
| Minimum Operating Frequency | - | 26 | - | kHz |
| Power Dissipation (TA = 70°C, 1 Oz Cu) | - | - | 465 | mW |
Key Features
- High Voltage Start-Up Circuit with Integrated Brownout Detection
- Input to Force Controller into Standby Mode
- Restart Pin Allows Adjustment of Bulk Voltage Hysteresis in Standby Mode
- Skip Mode Near the Line Zero Crossing
- Fast Line / Load Transient Compensation
- Valley Switching for Improved Efficiency
- High Drive Capability: -500 mA/+800 mA
- Wide VCC Range: from 9.5 V to 30 V
- Input Voltage Range Detection
- Line Removal Detection Circuitry
- Power Saving Mode (PSM) Enables < 30 mW No-load Power Consumption
- Pb and Halogen Free Device
- Adjustable Bulk Undervoltage Detection (BUV)
- Soft Overvoltage Protection
- Overcurrent Protection
- Open Pin Protection for FB and FOVP/BUV Pins
- Internal Thermal Shutdown
- Bi-Level Latch Input for OVP and OTP
- Bypass/Boost Diode Short Circuit Protection
- Open Ground Pin Protection
Applications
- PC Power Supplies
- Off Line Appliances Requiring Power Factor Correction
- LED Drivers
- Flat TVs
Q & A
- What is the primary function of the NCP1615D2DR2G?
The NCP1615D2DR2G is a high voltage, high efficiency Power Factor Correction (PFC) controller designed to drive PFC boost stages.
- What is the CCFF method used in the NCP1615D2DR2G?
The CCFF (Current Controlled Frequency Foldback) method ensures maximum efficiency at both nominal and light load conditions by adjusting the switching frequency based on the inductor current.
- What is the purpose of the high voltage start-up circuit in the NCP1615D2DR2G?
The high voltage start-up circuit eliminates the need for external start-up components and consumes negligible power during normal operation.
- What are the key safety features of the NCP1615D2DR2G?
The device includes features such as adjustable bulk undervoltage detection, soft overvoltage protection, overcurrent protection, internal thermal shutdown, and more.
- What is the power saving mode (PSM) in the NCP1615D2DR2G?
The PSM reduces the no-load power consumption to less than 30 mW by disabling the IC and reducing current consumption to a maximum of 100 μA.
- What are the typical applications of the NCP1615D2DR2G?
Typical applications include PC power supplies, off-line appliances requiring power factor correction, LED drivers, and flat TVs.
- What is the maximum operating junction temperature of the NCP1615D2DR2G?
The maximum operating junction temperature is 150°C.
- What is the minimum operating frequency of the NCP1615D2DR2G?
The minimum operating frequency is 26 kHz.
- Is the NCP1615D2DR2G Pb and Halogen free?
Yes, the NCP1615D2DR2G is a Pb and Halogen free device.
- What is the package type of the NCP1615D2DR2G?
The device is housed in a SOIC-16 package.
- What are the drive capabilities of the NCP1615D2DR2G?
The device has a high drive capability of -500 mA/+800 mA.
