This document introduces the features and characteristics of the CS1500 digital power factor correction IC (PFC), including digital EMI noise shaping, excellent efficiency under all load conditions, minimal external devices required, optimized digital loop compensation and comprehensive safety features.
The CS1500 is a high‑performance digital power factor correction (PFC) controller designed for universal AC input. It uses a proprietary digital algorithm to operate in discontinuous conduction mode with variable on‑time and frequency, providing unity power factor and high efficiency. The device integrates extensive safety features such as UVLO, overvoltage, overcurrent, overpower, brownout, and thermal shutdown.
The datasheet details pin assignments, absolute maximum ratings, electrical characteristics, typical performance curves, package dimensions, ordering information, and revision history. It also outlines operating modes (start‑up, normal, burst) and protection mechanisms, making it a comprehensive reference for designers implementing the CS1500 in up to 300 W PFC applications.
| Recommended Supply Voltage (Vpp) | 10 – 15 V |
|---|---|
| Total Power Dissipation (T = 50 °C) | 600 mW |
| Operating Ambient Temperature Range | -40 °C to +125 °C |
| Junction Temperature Range | -40 °C to +125 °C |
The recommended supply voltage (Vpp) for the CS1500 is 10 – 15 V.
The device can dissipate up to 600 mW at an ambient temperature of 50 °C.