</a>LED" title="LED">LED" title="LED">LED装饰灯,可调光LED照明,离线LED驱动器" title="LED驱动器">LED驱动器和商业照明.本文介绍了CS1610/11/12/13主要特性,方框图,典型应用电路以及典型反激电路图和降压电路图,以及CRD 1611-8W和CRD 1610-8W参考设计主要特性和指标.

The CS1610/11/12/13 is a digital control IC engineered to deliver a high-efficiency, cost-effective, flicker-free, phase-dimmable, solid-state lighting (SSL) solution for the incandescent lamp replacement market. The CS1610/11 is designed to control a quasi-resonant flyback topology. The CS1612/13 is designed to control a buck topology. The CS1610/12 and CS1611/13 are designed for 120VAC and 230VAC line voltage applications, respectively.

The CS1610/11/12/13 integrates a critical conduction mode (CRM) boost converter that provides power factor correction and dimmer compatibility with a constant output current, quasiresonant second stage. An adaptive dimmer compatibility algorithm controls the boost stage and dimmer compatibility operation mode to enable flicker-free operation to <2% output current with leading-edge, trailing-edge, and digital dimmers (dimmers with an integrated power supply).

CS1610/11/12/13主要特性:

• Best-in-Class Dimmer Compatibility

- Leading-edge (TRIAC) Dimmers

- Trailing-edge Dimmers

- Digital Dimmers (with Integrated Power Supply)

• Up to 90% Efficiency

• Flicker-free Dimming

• 0% Minimum Dimming Level

• Quasi-resonant Second Stage with Constant-current Output

Flyback and Buck

• 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

CS1610/11/12/13应用:

• Dimmable Retrofit LED Lamps

• Dimmable LED Luminaries

• Offline LED Drivers

• Commercial Lighting

图1.CS1610/11/12/13 方框图

图2.CS1610/11/12/13 典型应用电路图

图3.CS1610/11典型反激电路图

图4.CS1612/13典型降压电路图

CRD 1611-8W参考设计

The CRD 1611-8W reference design demonstrates the performance of the CS1611 resonant mode AC/ DC dimmable LED driver IC with a 550 mA output driving 4 LEDs in series. It offers best-in-class dimmer compatibility with leading edge, trailing edge, and digital dimmers. The form factor is targeted to fit into many LED bulb applications (A19, PAR).

CRD 1611-8W参考设计主要特性:

ƒƒ Quasi-resonant flyback with constant current output

ƒƒ Flicker-free dimming

ƒƒ Line voltage 230 VAC, ±10%

ƒƒ Rated input power: 8 W

ƒƒ Rated output power: 6.6 W

ƒƒ Efficiency: 83% at 550 mA, for 4 X LEDs in series

ƒƒ Low component count

ƒƒ Supports Cirrus Logic product CS1611

图5.CRD 1611-8W参考设计外形图

The CRD 1610-8W reference design demonstrates the performance of the CS1610 resonant mode AC/DC dimmable LED driver IC with a 470 mA output driving 5 X LEDs in series. It offers best-in-class dimmer compatibility with leading edge, trailing edge and digital dimmers. The form factor is targeted to fit into many LED bulb applications (A19, PAR).

CRD 1610-8W参考设计主要特性:

ƒƒ Quasi-resonant flyback with constant current output

ƒƒ Flicker-free dimming

ƒƒ Line voltage 120 VAC, ±10%

ƒƒ Rated input power: 8.1 W

ƒƒ Rated output power: 6.7 W

ƒƒ Efficiency: 84% at 470 mA, for 5 X LEDs in series

ƒƒ Low component count

ƒƒ Supports Cirrus Logic product CS1610

图5.CRD 1610-8W参考设计外形图

CRD 1610-8W和CRD 1611-8W参考设计主要指标:

详情请见:
http://www.cirrus.com/en/pubs/proDatasheet/CS1610-11-12-13_F3.pdf
和
http://www.cirrus.com/en/pubs/brochure/LED_Brochure.pdf