Cirrus Logic CS1616 - Manual

Copyright  Cirrus Logic, Inc. 2013
(All Rights Reserved)
Cirrus Logic, Inc.
http://www.cirrus.com
CS1615
CS1616
Single Stage Dimmable Offline AC/DC
Controller for LED Lamps
Features
• Best-in-class Dimmer Compatibility
- Leading-edge (TRIAC) Dimmers
- Trailing-edge Dimmers
- Digital Dimmers (Dimmers with an Integrated Power
Supply)
• Flicker-free Dimming
• 0% to 100% Smooth Dimming
• Primary-side Regulation (PSR)
• Active Power Factor Correction (PFC)
- >0.9 Power Factor
• Constant-current Output
- Flyback
- Buck-boost
• Tight LED Current Regulation: Better than ±5%
• Low THD: Less Than 20%
• Up to 90% Efficiency
• Fast Startup
• IEC61000-3-2 Compliant
• Meets NEMA SSL 6 Dimming Standard
- Closely Matches Incandescent S-curve
• Protection Features
- Output Open Circuit
- Output Short Circuit
- External Overtemperature Using NTC
Overview
The CS1615 and CS1616 are high-performance single
stage dimmable offline AC/DC controllers. The CS1615/16
is a cost-effective solution that provides unmatched single-
and multi-lamp dimmer-compatibility performance for
dimmable LED applications. The CS1615 is designed for
120VAC line voltage applications, and the CS1616 is
designed for 230VAC line voltage applications.
Across a broad range of dimmers, the CS1615/16 provides
smooth flicker free dimming, and consistently dims to
nearly zero light output, which closely matches the dimming
performance of incandescent light bulbs. Cirrus Logic’s
patent pending approach to dimmer compatibility provides
full functionality on a wide range of dimmers, including
leading-edge, trailing-edge, and digital dimmers.
Applications
• Retro-fit LED Lamps
• External LED Drivers
• LED Luminaries
• Commercial Lighting
Ordering Information
See page 14 .
AC
Mains
BR1
BR1
BR1
BR1
CS1615/16
FBAUX
GND
IAC
R3
T1
C7
GD
LED+
VDD
SOURCE
eOTP
NTC
5
16
13
10 14
R
S
D2
LED-
D4
R2
D1
Q1
Z1
FBSENSE
D3
R6 C6
Q3
R
S ense
11
2
12
SGND
4
CTRL1 CTRL2
R
CTRL1
R
CTRL2
8 9
C1 C2
C5
C4 C3
D5
R7
C8
R8
V
rect
L1
V
AUX
Q2
V
A UX
R4 R5
R1
JUN’13
DS961F1