Cirrus CS1631 9W离线LED驱动器参考设计

关键词： Cirrus , CS1631 , LED驱动器 , 离线

Cirrus公司的CS1630和CS1631是高性能离线AC/DC LED驱动器,采用Cirrus公司的数字调光控制技术和数字相关彩色温度(CCT)控制系统,能进行两路LED色彩混合. CS1630用于120VAC,CS1631用于230VAC火线电压, 主要用于可调光LED灯和LED照明,高CRI照明,离线LED驱动器和商用照明.本文介绍了CS1630和CS1631主要特性, 典型应用电路,以便及CRD1631-9W 9瓦参考设计主要特性,电路图,反激变压器和电感电路图和材料清单.

The CS1630 and CS1631 are high-performance offline AC/DC LED drivers for dimmable and high color rendering index (CRI) LED replacement lamps and luminaires. It features Cirrus Logic’s proprietary digital dimmer compatibility control technology and digital correlated color temperature (CCT) control system that enables two-channel LED color mixing. The CS1630 is designed for 120VAC line voltage applications, and the CS1631 is optimized for 230VAC line voltage applications.

The CS1630/31 integrates a critical conduction mode boost converter, providing power factor correction and superior dimmer compatibility with a primary-side regulated quasi-resonant second stage, which is configurable for isolated and non-isolated topologies. The digital CCT control system provides the ability to program dimming profiles, such as constant CCT dimming and black body line dimming. The CS1630/31 optimizes LED color mixing by temperature compensating LED current with an external NTC. The IC controller is also equipped with power line calibration for remote system calibration and end-of-lineprogramming. The CS1630/31 provides a register lockout feature for security against potential access to proprietary registers.

CS1630和CS1631主要特性:

• Best-in-class Dimmer Compatibility

- Leading-edge (TRIAC) Dimmers

- Trailing-edge Dimmers

- Digital Dimmers (with Integrated Power Supply)

• Correlated Color Temperature (CCT) Control System

• Up to 85% Efficiency

• Flicker-free Dimming

• Programmable Dimming Profile

- Constant CCT Dimming

- Black Body Line Dimming

• 0% Minimum Dimming Level

• Temperature Compensated LED Current

• End-of-line Programming Using Power Line Calibration

- Lower LED Binning Requirement

• Programmable Series or Parallel 2-Channel Output

- Interleaved Output Eliminates Additional Transformer

• Programmable Quasi-resonant Second Stage with Constant-current Output

- Flyback, Buck, and Tapped Buck

• Register Lockout

• Fast Startup

• Tight LED Current Regulation: Better than ±5%

• Primary-side Regulation (PSR)

• >0.9 Power Factor

• IEC-61000-3-2 Compliant

• Soft Start

• Protections:

- Output Open/Short

- Current-sense Resistor Open/Short

- External Overtemperature Using NTC

CS1630和CS1631应用:

• Dimmable Retrofit LED Lamps and LED Luminaries

• High CRI Lighting

• Offline LED Drivers

• Commercial Lighting

2012-5-29 13:21:05 上传

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图1.CS1630/31方框图

2012-5-29 13:21:05 上传

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图2.CS1630/31典型应用电路图

CRD1631-9W 9瓦参考设计

The CRD1631-9W reference design demonstrates the performance of the CS1631 resonant mode AC/DC dimmable LED driver IC with constant current output driving 419mA for white LEDs and 190mA for red LEDs in series 2 channel output configuration. It offers best-in-class dimmer compatibility with leading-edge, trailing-edge, and digital dimmers. Additionally, it offers superior 2 channel control with single channel LED temperature compensation for LED color mixing applications. The form factor is targeted to fit into many LED bulb applications (A19, PAR).

CRD1631-9W 9瓦参考设计主要特性:

• Quasi-resonant Flyback with Constant-current Output

• Independent Regulation for Series 2 Channel Output

• Flicker-free Dimming

• Line Voltage 230VAC, ±10%

• Rated Input Power: 9.72W

• Rated Output Power: 7.32W

• Efficiency: 75.33% at 419mA for 4 White LEDs and 190mA for 5 Red LEDs in Series 2 Channel Output

• Red LEDs Output Voltage: VRED = 10V

• White LEDs Output Voltage: VWHITE = 12.96V

• Fast Startup

• Tight LED Current Regulation: < ±5%

• Supports Cirrus Logic Product CS1631

2012-5-29 13:21:05 上传

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