Copyright

 Cirrus Logic, Inc. 2012

(All Rights Reserved)

Cirrus Logic, Inc.

http://www.cirrus.com

CS1610/11

CS1612/13

TRIAC Dimmable LED Driver IC

• 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).

• Dimmable Retrofit LED Lamps

• Dimmable LED Luminaries

• Offline LED Drivers

• Commercial Lighting

Ordering Information

See page 15

.

T1

D8

C9

LED+

LED-

D7

R12

NTC

Z2

C8

R11

D6

R8

R13

Q4

CS1610 /11

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

Q3

R10

3

R9

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

BS T

MAY’12

DS929F5