LED Lighting Solutions Guide - Cirrus Logic

20 Pages·2014·5.77 MB·English

LED Lighting Solutions Guide
Signal Processing Components
Cirrus Logic LED Lighting Solutions
Setting the standard
for dimmer compatibility
Leading the Market
Cirrus Logic digital LED drivers solve the dimmer compatibility issues that are a major barrier to
consumer adoption of LED retroft bulbs. Featuring proprietary digital intelligence, Cirrus Logic
LED drivers set new benchmarks for compatibility based on testing across a wide range of
dimmers that represent the global installed base. This line of drivers enables leading manufacturers
to provide high‑performance solutions that drive consumer adoption of LED bulbs.
Overview 2
LED Driver IC Portfolio 3
Reference Designs 8
LED Lighting Solutions Guide 1
Recreating Incandescent Performance
Cirrus Logic’s portfolio of LED driver ICs target the incandescent lamp
replacement market. The digital intelligence of Cirrus Logic’s LED drivers
consistently outperforms competing LED drivers in dimmer compatibility
while ofering a total bill‑of‑material cost equal to competing solutions.
Cirrus Logic’s patented dimmer‑compatibility technology identifes the type
of dimmer in use and applies the appropriate operating mode. This adaptive
digital technology consistently provides full functionality on even the most
challenging leading‑edge, trailing‑edge and smart digital dimmers.
Proven Performance:
Zero–100% Dimming Range,
Flicker-Free Operation,
Smooth, Monotonic Dimming
To test performance, Cirrus Logic acquired more than 400 dimmers consisting of some of the most
popular models on the market today and representing much of the global installed base. Cirrus Logic
developed a dimmer compatibility test methodology that scores LED bulbs on multiple factors including:
• Flicker-Free Operation
• bulb does not ficker at any point
along the full dimming range
• Smooth Monotonic Dimming
• bulb dims steadily without sudden
“jumps” or drops in light level
• Full Dimming Range Operation
• bulb dims efectively from maximum
to nearly zero light output
Cirrus Logic LED drivers ofer smooth, ficker‑free dimming across
a wide variety of dimmers and also consistently outperform
competing LED drivers in dimming range. Cirrus Logic’s ICs dim
to nearly zero light output, which closely matches the dimming
performance of incandescent light bulbs. Competing LED
drivers have not demonstrated this level of deep dimming.
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Zero–100% Dimming Range
LED Driver IC Portfolio
Part Number Description Features Applications
CS1610/11/12/13 Dual-Stage • Broad output range
120/230VAC (Mains Voltage)
CS1610A/11A/12A/13A Dual-Stage • Broad output range
120/230VAC (Mains Voltage)
CS1615/16 Single-Stage • Low Cost
120/230VAC (Mains Voltage) • Small form factor
PAR, BR, A‑Type, GU10, Downlight
CS1615A/16A Reduced BOM Cost • Lowest cost
Single-Stage • Small form factor
120/230VAC (Mains Voltage) • Optimized for <12W Output
CS1630/31 Dual-Stage • 2‑Channel Color Mixing Incandescent/ Warm Dimming
120/230VAC (Mains Voltage) • High CRI (90+)
2‑Channel Output‑ Color Mixing • High Efcacy
CS1680 Dual-Stage • MR16‑ Dimmer and Transformer Compatible MR16
12V (Low‑Voltage)
w/ Transformer
Find Your LED Lighting IC
INPUT VOLTAGE
Low Voltage Mains Voltage
(12 V) (120 VAC/230 VAC)
DIMMING TYPE DIMMING TYPE
Standard Incandescent Standard
(Brightness Dim) (Warm Dim) (Brightness Dim)
DIMMER COMPATIBILITY DIMMER COMPATIBILITY DIMMER COMPATIBILITY
Best-in-Class Perfect Best-in-Class Perfect
OUTPUT POWER OUTPUT POWER OUTPUT POWER OUTPUT POWER
<12 W <25 W 3 W – 12 W 12 W – 25 W < 25 W
OUTPUT TOPOLOGY OUTPUT TOPOLOGY OUTPUT TOPOLOGY OUTPUT TOPOLOGY OUTPUT TOPOLOGY
Flyback Buck Flyback Flyback Buck
Buck Boost Flyback
Tapped Buck Buck Boost Buck Boost Tapped Buck
CS1680 CS1630/31 CS1615A/16A CS1615/16 CS1610A/11A CS1612A/13A
LED Lighting Solutions Guide 3
CS1610A/11A/12A/13A
Dual-Stage LED Driver
The CS1610A/11A/12A/13A driver ICs are engineered to deliver a dimmable, high‑efciency lighting
solution for the incandescent lamp replacement market. The CS1610A/11A/12A/13A integrate a boost
converter that provides power factor correction and dimmer compatibility with a constant output current
second stage. Adaptive dimmer compatibility algorithms control the boost stage to enable smooth
ficker‑free dimming across a zero to 100 percent dimming range with leading‑edge, trailing‑edge and
smart digital dimmers. The CS1610A and CS1611A are designed to control a fyback topology while the
CS1612A and CS1613A are designed to control a buck topology.
FEATURES
• Best-in-class dimmer compatibility • Quasi-resonant second stage with • Fast startup
constant-current output
• Leading‑edge, trailing‑edge, and • Output open/short
smart digital dimmers • Primary side regulation enables tight
• Current‑sense resistor open/short
LED current regulation: less than ±5%
• Flicker‑free smooth dimming
• Optional over-temperature protection
• Active power factor correction to enable
• Zero–100% dimming range using external NTC to ensure lamp
PF >0.9
lifetime
• Up to 90% efciency
Product Selector Table
Part Circuit Architecture Output Stage Topology Input Voltage Range (Vac) Package
CS1610A Dual-Stage Single-Channel LED Control Flyback 120 VAC 16 SOIC
CS1611A Dual-Stage Single-Channel LED Control Flyback 230 VAC 16 SOIC
CS1612A Dual-Stage Single-Channel LED Control Buck; Tapped‑Buck 120 VAC 16 SOIC
CS1613A Dual-Stage Single-Channel LED Control Buck; Tapped‑Buck 230 VAC 16 SOIC
Note: “A” versions are intended to replace CS1610/11/12/13 in new designs.
Reference Designs
Part Nominal Input Voltage Rated Input Power Output Stage Topology Output Voltage Output Current Efciency
CRD1610A – 8W 120 VAC 8.1 W Flyback 14.0 V – 15.8 V 460 mA 84%
CRD1611A – 8W 230 VAC 8 W Flyback 11.0 V – 12. 6 V 550 mA 83%
4 For more information, visit w w . wcirrus.com
CS1615/16/15A/16A
Single-Stage LED Driver
The CS1615/16/15A/16A are single‑stage LED drivers that provides industry‑leading dimmer compatibility,
enabling LED lamps to match the dimming experience of incandescent lamps. Cirrus Logic’s proprietary
digital intelligence allows the CS1615/16/15A/16A to monitor and adapt to the type of dimmer in use and
select the appropriate operating mode. This adaptive digital signal processing technology, which is not
possible with competitive analog drivers, ensures a smooth ficker‑free dimming performance across a
zero to 100% dimming range. The CS1615/16/15A/16A are confgurable for isolated and non‑isolated
topologies and have a BOM cost equal to competitive single‑stage solutions. In addition to A ‑type,
PAR, and BR LED bulbs, the CS1615/16/15A/16A are suitable for space‑constrained GU10 bulbs. The
CS1615A/16A are BOM cost‑reduced versions of the CS1615/16 that target applications requiring less
than 12 W of output power. For applications requiring less than 25 W of output power, customers should
use the CS1615/16.
FEATURES
• Best-in-class dimmer compatibility • Active power factor correction to enable • On-chip protection for output
PF >0.9 short‑circuit, open‑circuit and over‑
• Leading‑edge, trailing‑edge and
temperature
smart digital dimmers • THD <20%
• 16 SOIC or 16 TSSOP package options
• Flicker‑free smooth dimming • Fast startup
• Compliant with NEMA SSL6 and
• Zero–100% dimming range • Isolated fyback or non‑isolated buck‑
proposed dimming requirements
boost topology options
• Primary side constant current control from Energy Star, California Energy
enables LED current regulation less • Optional over-temperature protection Commission and other global standards
than ±5% using external NTC to ensure lamp organizations
lifetime
• Up to 90% efciency
Product Selector Table
Part Circuit Architecture Output Stage Topology Input Voltage Range (Vac) Output Power Package
CS1515 Single-Stage Single-Channel LED Control Flyback; Buck‑Boost 120 VAC <25 W 16 SOIC or 16 TSSOP
CS1616 Single-Stage Single-Channel LED Control Flyback; Buck‑Boost 230 VAC <25 W 16 SOIC or 16 TSSOP
CS1615A Reduced BOM Cost, Flyback; Buck‑Boost 120 VAC <12 W 16 SOIC or 16 TSSOP
Single-Stage Single-Channel LED Control
CS1616A Reduced BOM Cost, Flyback; Buck‑Boost 230 VAC <12 W 16 SOIC or 16 TSSOP
Single-Stage Single-Channel LED Control
Reference Designs
Part Nominal Input Voltage Rated Input Power Output Stage Topology Output Voltage Output Current Efciency
CRD1615 – 8W 120 VAC 8.3 W Flyback 28 VDC 244 mA 82%
CRD1616 – 8W 230 VAC 8.3 W Flyback 28 VDC 248 mA 82%
CRD1615A – 8W 120 VAC 9.0 W Flyback 30 VDC 247 mA 82%
CRD1616A – 8W 230 VAC 8.5 W Buck-Boost 84 VDC 86 mA 85%
LED Lighting Solutions Guide 5
CS1630/31
Dual-Channel Color Mixing LED Driver
The CS1630/31 are high‑performance dimmable LED drivers targeting high Color Rendering Index
(CRI) LED replacement lamps and luminaires. The CS1630/31 feature 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 CS1630/31 integrate a boost converter, providing power
factor correction and industry‑leading dimmer compatibility with a primary‑side regulated second stage,
which is user‑confgurable for isolated and non‑isolated topologies. The digital CCT control system
provides the ability to program dimming profles, such as constant CCT dimming and black‑body line
dimming. The CS1630/31 optimize LED color mixing by temperature compensating LED current with an
external NTC thermistor. The IC controller is also equipped with power line calibration for remote system
calibration and end‑of‑line programming. The CS1630/31 provide a register lockout feature for security
against potential access to proprietary OTP register settings. The CS1630 is designed for 120 VAC line
voltage applications, and the CS1631 is optimized for 230 VAC line voltage applications.
FEATURES
• Best-in-class dimmer compatibility • Correlated Color Temperature (CCT) • Active power factor correction to enable
control system PF >0.9
• Leading‑edge, trailing‑edge, and smart
dimmers • No visible CCT shifts during warm‑ • Optional over-temperature protection
up time using external NTC to ensure lamp
• Flicker‑free smooth dimming
lifetime
• Programmable dimming profle
• Zero–100% dimming range
• Fast startup
• Programmable Interleaved
• End-of-line programming via power line
2-channel output eliminates • Tight LED current regulation: less than
calibration
additional transformer ±5%
• Lower LED binning requirement
• Constant CCT dimming • On-chip protection for output
• Flyback, buck, and tapped‑buck short‑circuit, open‑circuit and over‑
• Black-body line dimming
topology options temperature
• Up to 85% efciency
Product Selector Table
Part Circuit Architecture Output Stage Topology Input Voltage Range (Vac) Package
CS1630 Dual‑Stage Dual‑Channel LED Mixing Control Flyback; Buck; Tapped‑buck 120 VAC 16 SOIC
CS1631 Dual‑Stage Dual‑Channel LED Mixing Control Flyback; Buck; Tapped‑buck 230 VAC 16 SOIC
Reference Designs
Part Nominal Input Voltage Rated Input Power Output Voltage Output Current Efciency
CRD1630 – 10W 120 VAC 10 W V Red = 10.2 V I Red = 206 mA 80%
V White = 13 V I White = 495 mA
CRD1631 – 10W 230 VAC 10 W V Red = 10 V I Red = 185 mA 79%
V White = 13 V I White = 483 mA
6 For more information, visit w w . wcirrus.com
CS1680
MR16 LED Driver
The CS1680 is a two‑stage, cascade boost‑buck LED driver capable of solving the complex compatibility
challenges across the broad array of dimmer and transformer combinations used in 12‑volt MR16 lighting
systems. Addressing the need for halogen lamp replacements, the CS1680 uses patented digital control
technology to provide best-in-class compatibility in both single-lamp and multi-lamp systems that are
typically coupled with either electronic or magnetic transformers. The CS1680 addresses the growing
market for LED‑based MR16 lamps, which are approximately 80 percent more efcient than halogen
bulbs. Unfortunately, the current ofering of LED drivers do not ofer single ‑channel compatibility or provide
full‑light output for MR16 lamps when utilized with most combinations of dimmers and transformers. For
single‑lamp, or up to six lamps in a system, the CS1680 provides unparalleled ficker‑free performance
down to fve percent output current with leading‑edge and trailing‑edge dimmers.
FEATURES
• Best-in-class transformer compatibility • One SKU for MR16 applications in both • On-chip protection for output short-
120VAC and 230VAC markets circuit, open‑circuit, over‑current and
• Magnetic, electronic
over-temperature
• Up to 80% efciency
• Best-in-class dimmer compatibility
• 16 TSSOP package
• Zero output ripple, minimizes rectifed
• Operates across all dimmer and
line voltage
transformer combinations
• Active power factor correction to enable
• Flicker‑free smooth dimming
PF >0.9 on magnetic transformers
• 5%‑100% dimming range
• Soft start
Product Selector Table
Part Circuit Architecture Output Stage Topology Input Voltage Range (Vac) Package
CS1680 Dual-Stage SIngle-Channel LED Control Boost-Buck 12 VAC/DC 16 TSSOP
Reference Designs
Part Nominal Input Voltage Rated Input Power Output Stage Topology Output Voltage Output Current Efciency
CRD1680 – 7W 12 VAC 7 W Boost-Buck 12 V 430 mA 77%
LED Lighting Solutions Guide 7
CRD1610A – 8W
Reference Design
The CRD1610A – 8W reference design demonstrates the performance of the CS1610A dual‑stage
dimmable AC/DC LED driver IC with a 460 mA/14 V output driving 5 X LEDs in series. The CS1610A ofers
best‑in‑class dimmer compatibility with leading‑edge, trailing‑edge, and smart digital dimmers. The form
factor is targeted to ft into A‑type, PAR, and BR LED bulb applications.
DIMENSIONS
2.3”
1.2”
FEATURES
• Flyback topology with constant current output
• Flicker‑free dimming
• Line voltage 108 VAC – 132 VAC
• Rated output power 6.7 W
• Efciency ~84% at 460 mA, for 5 X LEDs in series
• Supports Cirrus Logic CS1610A
RESOURCES
• CRD1610A – 8W Reference Design Datasheet
• AN364: Design Guide for a CS1610 and CS1611 Dimmer‑Compatible SSL Circuit
• AN386: Migrating from the CS1610/11/12/13 to CS1610A/11A/12A/13A
8 For more information, visit w w . wcirrus.com