Cirrus Logic CRD1616-8W User Manual

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CRD1616-8W

2.028 51.5mm1.004 25.5mm0.65  16.5mm

8 Watt Reference Design

CRD1616-8W

Features

• Quasi-resonant Flyback with Constant-current Output

• Flicker-free Dimming

• Line Voltage 207VAC - 253VAC

• Rated Output Power: 7W

• Efficiency: 82.5% at

• Supports Cirrus Logic CS1616

250mA

for 10LEDs in Series

General Description

The CRD1616-8W reference design demonstrates the
performance of the CS1616 single stage dimmable AC/ DC
LED driver IC with a 250mA output driving
series

. It offers best-in-class dimmer compatibility with
leading-edge, trailing-edge, and digital dimmers. The form
factor is targeted to fit into many LED bulb applications
(GU10, A19, PAR, BR).

DIMENSIONS (OVERALL)

Length Width Height

For more information, see Figure 3 on page 6.

ORDERING INFORMATION

CRD1616-8W-Z 8 Watt Reference Design

Supports CS1616

10LEDs in

Cirrus Logic, Inc.

http://www.cirrus.com

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Copyright  Cirrus Logic, Inc. 2013

(All Rights Reserved)

DEC‘13

DS1003RD4

CRD1616-8W

Contacting Cirrus Logic Support

For all product questions and inquiries contact a Cirrus Logic Sales Representative. To find the one nearest to you
go to www.cirrus.com

IMPORTANT NOTICE

Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this document is accurate and reliable. However, the information is subject
to change without notice and is provided "AS IS" without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant
information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale
supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus
for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third
parties. This document is the property of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights,
copyrights, trademarks, trade secrets or other intellectual property rights. Cirrus owns the copyrights associated with the information contained herein and gives
consent for copies to be made of the information only for use within your organization with respect to Cirrus integrated circuits or other products of Cirrus. This con­sent does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale.

CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROP­ERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR
USE IN PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DEVICES, LIFE SUPPORT PRODUCTS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK
AND CIRRUS DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANT­ABILITY AND FITNESS FOR PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE CUSTOMER
OR CUSTOMER'S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL APPLICATIONS, CUSTOMER AGREES, BY SUCH USE,
TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL LIABILITY, IN­CLUDING ATTORNEYS' FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES.

Cirrus Logic, Cirrus, the Cirrus Logic logo designs, EXL Core, and the EXL Core logo design are trademarks of Cirrus Logic, Inc. All other brand and product names
in this document may be trademarks or service marks of their respective owners.

IMPORTANT SAFETY INSTRUCTIONS

Read and follow all safety instructions prior to using this demonstration board.

This Engineering Evaluation Unit or Demonstration Board must only be used for assessing IC performance in a
laboratory setting. This product is not intended for any other use or incorporation into products for sale.

This product must only be used by qualified technicians or professionals who are trained in the safety procedures
associated with the use of demonstration boards.

Risk of Electric Shock

• The direct connection to the AC power line and the open and unprotected boards present a serious risk of electric
shock and can cause serious injury or death. Extreme caution needs to be exercised while handling this board.

• Avoid contact with the exposed conductor or terminals of components on the board. High voltage is present on
exposed conductor and it may be present on terminals of any components directly or indirectly connected to the AC
line.

• Dangerous voltages and/or currents may be internally generated and accessible at various points across the board.

• Charged capacitors store high voltage, even after the circuit has been disconnected from the AC line.

• Make sure that the power source is off before wiring any connection. Make sure that all connectors are well

connected before the power source is on.

• Follow all laboratory safety procedures established by your employer and relevant safety regulations and guidelines,
such as the ones listed under, OSHA General Industry Regulations - Subpart S and NFPA 70E.

Suitable eye protection must be worn when working with or around demonstration boards. Always

comply with your employer’s policies regarding the use of personal protective equipment.

All components and metallic parts may be extremely hot to touch when electrically active.

2 DS1003RD4

CRD1616-8W

1. INTRODUCTION

The CS1616 is a 230VAC quasi-resonant flyback mode dimmable LED controller IC. The CS1616 uses a digital con­trol algorithm that is optimized for high efficiency and >0.9 power factor over a wide input voltage range (207VAC
to 253VAC). The CS1616 integrates a dimmer compatibility circuit with a constant output current, quasi-resonant
flyback stage. An adaptive dimmer compatibility algorithm controls the dimmer compatibility operation mode to en­able flicker-free operation from 0% to 100% output current with leading-edge, trailing-edge, and digital dimmers.

The CRD1616-8W board is optimized to deliver low system cost in a high-efficiency, flicker-free, phase-dimmable,
solid-state lighting (SSL) solution for incandescent lamp replacement applications. The feedback loop is closed
through an integrated digital control system within the IC. Protection algorithms such as output open/ short,
current-sense resistor open/ short, and overtemperature thermistors protect the system during abnormal conditions.
When using the CS1616 for a design that does not require active clamp circuitry, the CLAMP pin should be left
floating. Details of these features are provided in the CS1616/16 data sheet DS961 Single Stage Dimmable Offline
AC/DC Controller for LED Lamps.

The CRD1616-8W board demonstrates the performance of the CS1616. This reference board has been designed
for an output load of 10

This document provides the schematic for the board. It includes oscilloscope screen shots that indicate various op­erating waveforms. Graphs are also provided that document the performance of the board in terms of Efficiency vs.
Line Voltage, Output Current vs. Line Voltage, and Output Current vs. Dim Angle for the CS1616 dimmable LED
controller IC.

LEDs in series at 250 mA (28V typical).

Extreme caution needs to be exercised while handling this board. This board is to be used by trained professionals
only.

DS1003RD4 3

4 DS1003RD4

600-00657-Z1 REV E

C.LAMBERTC.LAMBERT

SHEET

OFSHEET

ENGINEER

DATE

DRAWN BY

PART #

SHEET

6/4/2013

SCHEM,CRD1616-8W

11

TITLE

SIZE

B

12/17/12A

REV DESCRIPTION DATE

INITIAL RELEASE

127(681/(6627+(5:,6(63(&,),('

$//5(6,67259$/8(6$5(,12+06

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$8;,/,$5<+$5':$5($1'5(/$7(''2&80(176

A1

CHGD C11 TO KEMET PHE426KJ5220JR05.

01/23/13

CHGD C13 TO PANASONIC ECQE4683RJF.
CHGD C2 TO KEMET PHE426KJ5470JR05.
CORRECTED CONNECTION ON D5.









ECO1028

ECO1029 B INCORPORATED ECO1028 CHANGES TO THE BOARD LAYOUT.

02/05/13

ECO1050 C

CHANGED D7, FOOT PRINT CHANGED

02/25/13

ECO1070 C1

CHANGED U1 REV FROM B1 TO A0

04/19/13

DECO1080 REMOVED THERMAL PAD FROM U1. 4/25/13

ECO1095 E ADD KEEPOUT ON L4, PIN 8 TO PREVENT SHORT OF REMOVED PIN. 06/04/13

422-00657-01

12

D6

SD103BWS-TP

5

 

5

15K

-t

17&

100K

5

!"

(

LINE

(

NEUTRAL

R4

1K

PCB DWG-

=

LBL SUBASSY PROD ID AND REV

SCHEMATIC DWG

=

ASSY DWG-

=

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1N4005

1

2

Z1
NZH16C,115
16V

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Sec

Aux

4

5

6

7

8

B

A

L4

EE13-CL03

C2

0.047uF
400V

1

3

2

Q2

AOD1N60

G

D

S

Q4
STD3NK80Z-1

5

53.6K

5

4.42 Ohm

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47uF

ELEC

R15

270

1

2R34.7K
2W

C4

680uF

AL ELEC

R5
30K

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(

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1

+

3

2

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4

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69.8K

1

G

2

S

3

D

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R2 47 OHM

5

1.50M

5

1.50M

1

AUXCNTRL

2

IAC

3

CLAMP

4

SGND

5

SOURCE

6

SDA

7

SCL

8

CTRL1

9

CTRL2

10

EOTP

11

FBSENSE

12

GND

13

GD

14

VDDH

15

NC

16

FBAUX

U1

CS1616-FSZ

1

2

VR1
V275LT4P
275V

12

D7

SS110-TP

100V

C11

0.022uF

MTLPOLY

L1

10mH

C13

0.068uF

MTLPO LY

R9 56 Ohm

R12 100 Ohm

12

D2

1N4148WX-TP

100V

1

2

D4
STTH1L06A
600V

C5

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1

2

D3

STTH1R06

600V

1

2

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P6KE350A

300V

C3

2200pF

CERAMIC

12

D5

1N4148W-7-F

100V

V_AUX

V_AUX

V_CNTRL

GND

V_CNTRL

2. SCHEMATIC

CRD1616-8W

Figure 1. Schematic

3. BILL OF MATERIALS

Item Rev DescripƟon Qty Reference Designator MFG MFG P/N

1 DIODE RECT 400V 0.8A NPB MINIDIP 1 BR1 DIODES INC HD04-T
2 CAP 47uF ±20% 35V AL ELEC NPb RAD 1 C1 KEMET ESK476M035AC3AA
3 CAP 0.047uF ±5%LS 400V MTL NPb RAD 1 C2 KEMET PHE426KJ5470JR05
4 A CAP 2200pF ±10% 2KV CERAMIC NPb TH 1 C3 MURATA DEBB33D222KA2B
5
6 CAP 1uF ±10% 25V X7R CER NPb 0603 2 C5 C6 TDK CGA3E1X7R1E105K
7 CAP 0.022uF ±5%LS 400V MTL NPb RAD 1 C11 KEMET PHE426KJ5220JR05
8 CAP 0.068uF ±5%LS 400V MTL NPb RAD 1 C13 PANASONIC ECQE4683RJF

9 DIODE RECT 600V 1A 50mA NPb DO-41 1 D1 DIODES INC 1N4005
10 DIODE HS SWT 100V 300mA NPb SOD323 1 D2 MICRO COMMERCIAL 1N4148WX-TP
11 DIODE FAST 600V 1A NPb DO-41 1 D3 ST STTH1R06
12 DIODE ULT FAST 600V 1A NPb SMA 1 D4 ST MICROELECTRONICS STTH1L0

6A
13 DIODE FAST SW 100V 400mW NPb SOD123 1 D5 DIODES INC 1N4148W-7-F
14 DIODE SCHOTTKY 350mA 30V NPb SOD323 1 D6 MICRO COMMERCIAL SD103BWS-TP
15 DIODE SKY RECT 100V 1A NPb DO-214AC 1 D7 MCC SS110-TP
16
17 IND 10mH ±10% 34OHM NPb 350DIA TH 1 L1 COILCRAFT RFB0807-103L
18 XFMR 4.0mH ±10% 10KHz NPb TH 1 L4 KUNSHAN EAGERNESS EE13-CL03
19
20 TRAN MSFET nCH 60V 360mA NPb SOT-23 1 Q1 NXP 2N7002P,215
21 TRAN MOSFET nCH 1.3A 600V NPb DPAK 1 Q2 ALPHA & OMEGA AOD1N60
22 TRAN MOSFET nCH 2.5A 800V NPb IPAK 1 Q4 ST MICROELECTRONICS STD3NK80Z-1
23 RES 47 OHM 1/10W ±1% NPb 0603 2 R2 R19 PANASONIC ERJ3EKF47R0V
24 RES 4.7K OHM 2W 5% MTL FILM NPb AXL 1 R3 YAGEO FMP200JR-52-4K7
25 RES 1k OHM 1/2W ±5% CARFL NPb AXL 1 R4 STACKPOLE ELECTRONICS CFM12JT1K00
26 RES 30K OHM 1/8W ±0.1% NPb

0805 1 R5 PANASONIC ERA-6YEB303V
27 RES 4.42 OHM 1/8W ±1% NPb 0805 FLM 1 R6 YAGEO RC0805FR-074R42L
28 RES 1.50M OHM 1/4W ±1% NPb 1206 2 R7 R8 PANASONIC ERJ8ENF1504V
29 RES 56 OHM 1W 5% MTL FILM NPb AXL 1 R9 YAGEO FMP100JR-52-56R
30
31 RES 100 OHM 2W 5% FUSIBLE WW NPb AX 1 R12 YAGEO FKN2WSJR-73-100R
32 RES 51.1k OHM 1/10W±1% NPb 0603 FLM 1 R13 DALE CRCW060351K1FKEA
33 RES 270 OHM 2W ±5% MTL FLM NPb AXL 1 R15 PANASONIC ERG2SJ271
34 RES 53.6k OHM 1/10W±1% NPb0603 FILM 1 R17 DALE CRCW060353K6FKEA
35 RES 15k OHM 1/10W ±1% 0603 FILM 1 R18 DALE CRCW060315K0FKEA
36 RES 3k OHM 1/10W ±5% NPb 0603 FILM 1 R23 DALE CRCW06033K00JNEA
37 A0 IC CRUS TRIAC DIM PFC 230V NPb SO16 1 U

1 CIRRUS LOGIC CS1616-FSZ/A0
38 VARISTOR 275V 80pF 23J 7mm NPb RAD 1 VR1 LITTELFUSE V275LT4P
39 DIODE ZENER 500mW 16V NPb SOD123F 1 Z1 NXP NZH16C,115
40 DIODE TVS 300V 600W NPb DO-204AC 1 Z2 LITTELFUSE P6KE350A

Figure 2. Bill of Materials

CAP 680uF ±20% 35V AL ELEC NPb RAD 1 C4 PANASONIC EEUFR1V681

NO POP PAD H40 P64 NPb TH 4 E1 E2 E5 E6 NO POP NP-PAD-H40P64

CRD1616-8W

DS1003RD4 5

THERM 100K OHM ±5% 0.10mA NPb 0603 1 NTC MURATA NCP18WF104J03RB

RES 69.8k OHM 1/10W ±1% NPb 0603 1 R10 DALE CRCW060369K8FKEA

6 DS1003RD4

4. BOARD LAYOUT

Figure 3. PCB Dimensions

CRD1616-8W

DS1003RD4 7

Figure 4. Top Silkscreen

CRD1616-8W