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
L1
C5
V
rec t
C6
R4
R5
D3
2
IAC
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
T1
R6
D4
C7
LED+
LED-
R2
BR1
BR1
Q1
D2
5
SOURCE
C1
C2
D1
BR1
BR1
C3
C4
Z1
V
A UX
FBSENSE
R3
D5
Q3
R7
V
AUX
CS1615/16
R1
GD
13
AC
Mains
11
Q2
14
VDD
SGND
CTRL1 CTRL2
FBAUX
16
eOTP
GND
10
R
S
R
S ens e
R8
C8
4
8
9
12
NTC
R
CTRL1
R
CTRL2
Cirrus Logic, Inc.
Copyright
Cirrus Logic, Inc. 2013
(All Rights Reserved)
JUN’13
DS961F1
APEX [ CIRRUS LOGIC ]
