CS1610/11
CS1612/13
TRIAC Dimmable LED Driver IC
Features
& Description
• Best-in-Class Dimmer Compatibility
-
Leading-edge (TRIAC) Dimmers
-
Trailing-edge Dimmers
-
Digital Dimmers (with Integrated Power Supply)
• Up to 90% Efficiency
• Optimized for <25W Input Power
• 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
Overview
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, quasi-
resonant 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).
Applications
& Description
•
•
•
•
Dimmable Retrofit LED Lamps
Dimmable LED Luminaries
Offline LED Drivers
Commercial Lighting
Ordering Information
See
.
L1
V
rect
L2
D6
R8
R10
V
B S T
C8
Z2
T1
D8
LED+
C9
LED-
C3
R2
R3
R4
R5
D3
C5
C6
R6
R7
1
BSTAUX
16
R9
D7
BSTOUT
3
Q3
BR1
BR1
D4
CLAMP
R1
2
C2
D2
Q2
5
IAC
AC
Mains
C1
CS1610 /11
SOURCE
GD
FBAUX
13
15
11
10
R
S
Q4
R12
Q1
D5
14
FBSENSE
VDD
eOTP
8
C7
IPK
SGND
R
IP K
4
GND
12
FBGAIN
9
R
FB GA IN
NTC
R13
BR1
BR1
D1
Z1
C4
C
NTC
R11
Cirrus Logic, Inc.
Copyright
Cirrus Logic, Inc. 2012
(All Rights Reserved)
MAY’12
DS929F5
APEX [ CIRRUS LOGIC ]
