Cirrus Logic CS1613A - Manual

Copyright
 Cirrus Logic, Inc. 2014
(All Rights Reserved)
Cirrus Logic, Inc.
http://www.cirrus.com
CS1610A/11A
CS1612A/13A
TRIAC Dimmable LED Driver IC
Features & Description
• Best-in-class Dimmer Compatibility
- Leading-edge (TRIAC) Dimmers
- Trailing-edge Dimmers
- Center-cut 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
• NEMA SSL6 Compatible
• Soft Start
• Protections:
- Output Open/Short
- Current-sense Resistor Open/Short
- External Overtemperature Using NTC
Overview
The CS1610A/1A/12A/13A 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 CS1610A/11A is designed to
control a quasi-resonant flyback topology. The CS1612A/13A is
designed to control a buck topology. The CS1610A/12A and
CS1611A/13A are designed for 120VAC and 230VAC line
voltage applications, respectively.
The CS1610A/11A/12A/13A 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, center-cut,
and digital dimmers (dimmers with an integrated power supply).
Applications
• Dimmable Retrofit LED Lamps
• Dimmable LED Luminaries
• Offline LED Drivers
• Commercial Lighting
Ordering Information
See page 16 .
T1 D8
C9
LED+
LED-
D7
R12
NTC
Z2 C8
R11
D6
R8
R13
R
FB GA IN
Q4 CS1610A/11A
IAC
SOURCE
FBGAIN
FBAUX
BSTOUT
GND SGND
13
16
5
4
IPK
CLAMP
GD
FBSENSE
eOTP
15
8
9
10
12
11
1
14
2
BSTAUX
VDD
R10
3
R S
C
NTC
R9
R
IP K
BR1 BR1
AC
Mains
C7
L1
D2
BR1 BR1
D5
L2
C2
R4
R6
R7
Q2
Z1 C4
C3
R2
D1
R1
C1
R5
C6
D4
D3
C5
Q1
R3
V
rect
V
B S T
Q3
JUN’14
DS976F1