CS1610 Datasheet, PDF (1/17 Pages) Cirrus Logic – TRIAC Dimmable LED Driver IC

CS1610/11
CS1612/13
TRIAC Dimmable LED Driver IC
Features & Description
Overview
• 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
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 page 15.
L1
BR1
BR1
AC
Mains
BR1
R1
C2
C1
BR1
Vr e c t
C3
R3
R2
R4
D2
Q1
D1
Z1 C4
L2
D6
R8
R5
R6
R9
D3
C6
C5 D4
R7
1
BSTAUX
16
BSTOUT
3
CLAMP
2
IAC
Q2
CS1610 /11
13
GD
5 _SOURCE
D5
15
FBAUX
14 _VDD
FBSENSE ¹¹
eOTP ¹⁰
8 _IPK
SGND
GND
FBGAIN
C7
RIP K
4
12
9
RFB GA IN
V_{B S T}
T1
R10 C8 Z2
D7
Q3
Q4
RS
NTC
CNTC R11
D8
LED+
C9
LED-
R12
R13
Cirrus Logic, Inc.
http://www.cirrus.com
Copyright  Cirrus Logic, Inc. 2012
(All Rights Reserved)
MAY’12
DS929F5