Marvell A19 LED Reference Bulb with Cree LEDs
Turn-key Design for 40W Incandescent Replacement LED Lamp
PRODUCT OVERVIEW
Marvell® A19 LED Reference Bulb is a turn-key solution providing manufacturing ready design for a 40W incandescent
replacement LED light bulb. The design includes electrical, mechanical, thermal and optics elements. It uses Marvell’s
VLQJOHVWDJH3RZHU)DFWRU&RUUHFWLRQ3)&À\EDFN/('GULYHUWKH0DUYHOO(0DORQJZLWK&UHH® XLamp XP-E
+(:/('VWRRIIHUKLJKHI¿FLHQF\KLJKSRZHUIDFWRUDQGORZ%20FRVWIRUFRVWVHQVLWLYHVSDFHFRQVWUDLQHGDQGKLJK
WHPSHUDWXUHRSHUDWHGUHWUR¿WEXOEDSSOLFDWLRQV7KHHQWLUHGHVLJQLVUHDG\IRU(QHUJ\6WDU® (with exception of beaming
DQJOH/LJKWLQJ)DFWV(0,(0&&(DQG8/VDIHW\UHTXLUHPHQWVDOORZLQJTXLFNWLPHWRPDUNHWIRU/('OLJKWLQJ2(0V
DQG2'0V7KHGHVLJQFRPHVZLWKDFRPSOHWHSDFNDJHLQFOXGLQJGULYHUPHFKDQLFDOGHVLJQ¿OHVDQGWHVWUHSRUWVIRU
Thermal, Colorimetric and Electrical performance measurements.
Figure 1. Marvell A19 LED Reference Bulb with Cree LEDs
KEY FEATURES
DRIVER PERFORMANCE
LIGHTING PERFORMANCE
90 to 264VAC
475 Lumens
0.99 PF
3000K CCT
10% THD
&5,
(I¿FLHQF\
MARVELL 88EM8081 LED DRIVER IC FEATURES
CREE XP-E HEW LED FEATURES
6LQJOHVWDJH$&'&3)&À\EDFNWRSRORJ\
+LJKHI¿FDF\RYHU/3:ZLWKZDUPZKLWH
Mixed CCM/DCM modes for power factor correction
High drive current up to 1A
Precise secondary side control
Low thermal resistance: 6°C/W
Universal voltage input
Maximum junction temperature: 150°C
High power factor, low THD
Wide viewing angle: 120°
+LJKHI¿FLHQF\
5HÀRZVROGHUDEOH-('(&-67'&FRPSDWLEOH
Built-in protections
Electrically neutral thermal path
)LJXUH0DUYHOO(0/(''ULYHU
Figure 3. Cree XP-E HEW LEDs
Marvell A19 LED Reference Bulb with Cree LEDs
DESIGN PACKAGE
7KHGHVLJQSDFNDJHLQFOXGHVWZRVHWVRI¿OHV
1. Design Files
&RQWDLQVDOOWKHGHVLJQUHODWHGVRXUFH¿OHVDQGDVVHPEO\QRWHV,WIXUWKHUVXEGLYLGHVWKHGHVLJQ¿OHVLQWRJURXSV
0DUYHOO(0'ULYHU
- Layout of the PCB
6FKHPDWLFRIWKH3&%$
%20RIWKH3&%$
- Transformer spec
3&%NHHSLQGUDZLQJWRHQVXUHGULYHU3&%$¿WVLQWRWKHGULYHUKRXVLQJ
LED MCPCB
- Mechanical spec of the MCPCB
- MCPCB layout
Mechanicals
- 3D model of the bulb assembly
- 2D drawings of the bulb assembly
- 3D model of the one-piece die-cast AL heat sink replacement for the reference bulb
2. Test Reports
Contains the various test reports for the reference bulb:
Colorimetric tests
- Integrating sphere aging test report – summary/table on the integrating sphere measurement of 10 PVT
samples at 110V, 220V, before and after 20 hours aging. The table includes all colorimetric data
&RORULPHWULF7HVW5HSRUW%HIRUH$JLQJ±DOOWKHWHVWUHSRUWVJHQHUDWHGIURPWKH(YHU¿QHWHVWPDFKLQHIRU 110V and 220V
&RORULPHWULF7HVW5HSRUW$IWHUKRXU$JLQJ±DOOWKHWHVWUHSRUWVJHQHUDWHGIURPWKH(YHU¿QHWHVWPDFKLQH
for 110V and 220V after 20-hour aging
Driver Test Reports
&RPSOHWHGULYHUWHVWUHSRUWIURPGULYHU2'0LQFOXGLQJHOHFWULFDOWKHUPDO(0,(0&HWFWHVWUHVXOWV
- Harmonic current test reports
Thermal test reports
- Without potting – thermal logs on the bulb under 25 degree and 45 degree C and in the upright and face-down
positions. 15 points are probed in each test.
- Potting – thermal logs comparison between potting of the driver and not potting
The manufacturing ready A19 LED Reference Design Kit is available from your local Marvell sales team or distributor.
Marvell A19 LED Reference Bulb with Cree LEDs
DESIGN SPECIFICATIONS
ITEM
SPEC
REMARKS
Dimension
Diameter
60.0 +/- 1.0 mm
6SHFPHW
Length
103.2mm - 112.7 mm
0D[PPDVSHU&
Weight
~150g
Connector Base
E26
Toxic Material
5R+6&RPSOLDQW
LED
Cree XP-E
Cree XP-E HEW
Luminous Flux
OP
6SHFPHW:LQFDQGHVFHQWHTXLYDOHQW
CCT
3000K
(QHUJ\6WDU5HT&KURPDWLFLW\
&
CRI
6SHFPHW
Beam Angle
120 degree
6SHFPHW
/XPLQDULHV(I¿FDF\
OP:
> 60 lm/W
2SWLFDO/HQ'LIIXVHU0DWHULDO/RVV
Glass/PC < 10%
AC Input Voltage
9$&
Dimming
Non-dimmable
'ULYHU(I¿FLHQF\
Input Power
7.25 +/- 0.6 W
6SHFPHW
Constant Current
500 +/- 15 mA
6SHFPHW
LED Vf
10-15 V
6SHFPHW
Driver PF
THD
<10%
Ripple Current
<30%
6RXUFH6WDUWXS7LPH
<0.5 s
'ULYHU3&%$6L]H
[[PP
2QERDUGGULYHFXUUHQWWXQLQJ
-5%,+5%,0
2SHUDWLQJ$PELHQW7HPS
-20C to 45C
EMI/EMC
< 0.35s
)&&&)5SDUW
Noise
<24dBA
2SHUDWLQJ)UHTXHQF\
+]
Transient Protection
VWULNHV.+]ULQJZDYH.9
$16,,(((&
Marvell A19 LED Reference Bulb with Cree LEDs
THE MARVELL ADVANTAGE: Marvell products come with complete reference designs which include board layout
designs, software, manufacturing diagnostic tools, documentation, and other items to assist customers with
SURGXFWHYDOXDWLRQDQGSURGXFWLRQ0DUYHOO¶VZRUOGZLGH¿HOGDSSOLFDWLRQHQJLQHHUVFROODERUDWHFORVHO\ZLWKHQG
FXVWRPHUVWRGHYHORSDQGGHOLYHUQHZOHDGLQJHGJHSURGXFWVIRUTXLFNWLPHWRPDUNHW0DUYHOOXWLOL]HVZRUOG
leading semiconductor foundry and packaging services to reliably deliver high-volume and low-cost total solutions.
ABOUT MARVELL: Marvell is a leader in storage, communications and consumer silicon solutions. Marvell’s diverse
product portfolio includes switching, transceiver, communications controller, processors, wireless, power management
and storage solutions that power the entire communications infrastructure, including enterprise, metro, home, storage,
and digital entertainment solutions. For more information, visit our website at www.marvell.com.
0DUYHOO6HPLFRQGXFWRU,QF
0DUYHOO/DQH
6DQWD&ODUD&$
3KRQH
www.marvell.com
Copyright © 2011. Marvell International Ltd. All rights reserved. Marvell and the Marvell
logo are registered trademarks of Marvell. All other trademarks are the property of their
respective owners.
Marvell_Cree_A19LED_Reference_Bulb_platform_brief-002
5/11