88EM8189 Product Brief

Marvell 88EM8189
Intelligent LED Controller for Smart Wireless Light Bulbs
- Integrated I2C Interface and Standby Power Supply for Networking Circuit
PRODUCT OVERVIEW
The Marvell® 88EM8189 is a single-stage AC/DC constant current, intelligent LED controller featuring an integrated I2C compatible
interface. The I2C interface connects to networking microcontrollers to provide digital dimming through ZigBee®, Wi-Fi, Bluetooth,
PLC and other technologies. Additionally, the 88EM8189 has an energy efficient on-chip AC-DC converter for bias power supply to
the networking microcontroller that enables meeting ENERGY STAR power consumption <500mW in standby mode (when light
is off).
Used in conjunction with Marvell’s 88MZ100 ZigBee microcontroller; the 88EM8189 is part of two-chip solution that accelerates
the development of smart wireless lighting with a low cost BOM and quick time to market. Moreover, the 88EM8189 enables smart
bulbs to be backward compatible to phase cut wall dimmers, providing flick-free dimming performance.
Marvell LED technology, based on its own intellectual property (IP), provides assurance in best performance, lowest cost and
highest reliability. These IPs include innovative phased cut dimmer control algorithms, primary current sensing and control
algorithms, pulse width modulation (PWM) control algorithms, fault detection and control algorithms, and thermal management
algorithms. The 88EM8189 can be used in either Buck-Boost (non-isolated) or Flyback (isolated) design topologies.
88EM8189 TYPICAL FLYBACK APPLICATIONS SCHEMATIC DIAGRAM
L1
T2
C11
C6
R4
BD1
R11
R12
D5
14
PSVR
10
DIM
9
12
11
RSNS
GND
13
8
VDD
SW
7
DIS
R3
GND
6
DISABLE
C7
Naux
5
I2C DATA
R1
88EM8189
SCLK SDATA
4
D2
VDC
NTC
Vbias
15
3
TRIAC
I2C CLK
VDC
2
R22
NC
C14
16
HV
D9
FB
FB
1
HV
HV
D7
LED
+
LED
-
C5
C4
C3
D3
R9
Q1
R7
C8
D1
R6
R2
L4
VBAT
VDC
I2C CLK
88MZ100
(ZigBee)
I2C DATA
DISABLE
C12
R15
FB
R16
Fig 1. 88EM8189 Typical Application Block Diagram – Flyback (Isolated) Design
KEY FEATURES AND BENEFITS
KEY FEATURES
BENEFITS
• Integrated I2C interface to networking microcontroller
•• High efficiency - up to 88% with dimmer and 90% without dimmer
•• On-chip AC-DC converter for bias power supply to the networking microcontroller that enables meeting ENERGY STAR power
consumption <500mW in standby mode
•• High power factor (> 0.95)
• Accurate primary side current regulation
•• Low THD (<20%) and EMI
Marvell 88EM8189
KEY FEATURES AND BENEFITS
continued
KEY FEATURES
BENEFITS
•• Active power factor correction
•• Lowest component cost in its class
- Eliminates opto-coupler and secondary feedback circuit
- Eliminates startup power supply circuit
- Fewest number of components in dimmer damping and bleeding
circuits
- Eliminates power supply circuit for networking chip
•• On-chip high voltage start-up circuit
•• Smallest driver PCB space in its class
- Fits in vast majority of replacement bulb form factors
- Supports single layer PCB design
•• Thermal foldback for improved reliability
•• Increased reliability due to fewer power components and less power
loss
•• Built-in protection for open circuit, short circuit, and
over-temperature
•• Reduced design time due to high level of integration and intelligence on the chip
•• Pulse-skipping for low standby power consumption
•• SOIC-16 package
•• Operating temperature: -40 to +105°C (Tj = 150°C max)
Fig 2. 88EM8189 IC Front / Back (enlarged)
Fig 3. 88EM8189 Reference Design Front / Back (reduced)
TARGET APPLICATIONS
The Marvell 88EM8189 is ideally suited for the following LED lighting applications:
• Smart light bulbs
• Wireless fixtures
THE MARVELL ADVANTAGE: Marvell chipsets come with complete reference designs which include board layout designs,
software, manufacturing diagnostic tools, documentation, and other items to assist customers with product evaluation and
production. Marvell’s worldwide field application engineers collaborate closely with end customers to develop and deliver
new leading-edge products for quick time-to-market. Marvell utilizes world-leading semiconductor foundry and packaging
services to reliably deliver high-volume and low-cost total solutions.
ABOUT MARVELL: Marvell (NASDAQ: MRVL) is a global leader in providing complete silicon solutions and Kinoma® software
enabling the “Smart Life and Smart Lifestyle.” From mobile communications to storage, cloud infrastructure, digital
entertainment and in-home content delivery, Marvell’s diverse product portfolio aligns complete platform designs with
industry-leading performance, security, reliability and efficiency. At the core of the world’s most powerful consumer, network
and enterprise systems, Marvell empowers partners and their customers to always stand at the forefront of innovation,
performance and mass appeal. By providing people around the world with mobility and ease of access to services adding
value to their social, private and work lives, Marvell is committed to enhancing the human experience. As used herein, the
term “Marvell” refers to Marvell Technology Group Ltd. and its subsidiaries.
Marvell Semiconductor, Inc.
CONTACT US: For additional information, please visit our website at www.marvell.com for a Marvell sales office or
representative in your area.
www.marvell.com
Copyright © 2014. Marvell. All rights reserved. Marvell and the Marvell logo are registered trademarks of Marvell. All other trademarks are the property of their respective owners.
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