Cirrus Logic CS1616A - Manual

Preliminary Product Information
This document contains information for a product under development.
Cirrus Logic reserves the right to modify this product without notice.
Copyright  Cirrus Logic, Inc. 2013
(All Rights Reserved)
Cirrus Logic, Inc.
http://www.cirrus.com
CS1615A
CS1616A
Single Stage Dimmable Controller for LED Lamps
Features
• Reduced Off-chip BOM Compared to CS1615/16
• 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
• Optimized for Output Power <11W
• 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
• Meets NEMA SSL 6 Dimming Standard
- Closely Matches Incandescent S-curve
• Protection Features
- Output Open Circuit
- Output Short Circuit
- Overtemperature
Overview
The CS1615A and CS1616A are high-performance single
stage dimmable offline AC/DC controllers. The
CS1615A/16A requires fewer off-chip components than
the CS1615/16 resulting in a lower total BOM cost. The
CS1615A/16A provides unmatched single- and multi-lamp
dimmer-compatibility performance for dimmable LED
applications. The CS1615A is designed for 120VAC line
voltage applications, and the CS1616A is designed for
230VAC line voltage applications.
Across a broad range of dimmers, the CS1615A/16A
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 Luminaires
• Commercial Lighting
Ordering Information
See page 14 .
AC
Mains
BR1
BR1
BR1
BR 1
CS1615A/16A
FBAUX
GND
IAC
R2
GD
VDD
SOURCE
eOTP
NTC
16
13
5
14
R
S
Z1
FBSENSE
11
2
12
SGND
4
CTRL1 CTRL2
R
CTRL1
R
CTRL2
8 9
C1 C2
C3
C4 C5
V
rect
L1
Q1
V
A UX
R3 R4
R1
Q3
R
S ense
LED+
LED -
L2
R6
R7
D5
D4
C6
V
AUX
C7
D1
D3
D2
10
Q2
R5
AUG’13
DS1033PP2