akros products overview€“ low no-load power for energy star and eup/coc compliant designs –...

Copyright 2011 Akros Silicon Inc. CONFIDENTIAL & PROPRIETARY

Akros Products Overview

March 2011

Challenges and Opportunities

IP Phone LED Lighting IP Security Camera

Consumer Electronics

PC + Charger

Significant Power Consumption

Even when Idle

No Ability to Externally Manage Power

Copyright 2011 Akros Silicon Inc. 3 CONFIDENTIAL & PROPRIETARY

Power Management Evolution

• Bag of chips / Low efficiency

• Difficult to design

• Component level focus on efficiency

• No system view optimization

• System level integration

• High system efficiency

• Network management


Akros Silicon at a Glance

Company Highlights– World’s first Quad-output, Isolated

Power SoC with 2kV isolation (2009)

– World’s first PoE Power System-on-a-Chip (SoC) with 2kV isolation (2009)

– World’s first IEEE 802.3at PD Controller (2008)

– World’s first integrated active EMI and ESD suppressor (2007)


Strong Product & Technology

– 56 patents, 15 products in production

Strong Team

– Industry veterans from Maxim, Intel, AATI, Voltera, LevelOne, Metalink, Crystal, Agere


World-wide Partners/Customers

Networking

http://www.pelco.com/

http://www.mitel.com/

http://www.samsung.com/us/index_main.html

http://www.dasannetworks.com/english/default.asp

http://www.iqeye.com/index.php

http://www.hp.com/

http://h17007.www1.hp.com/us/en/index.aspx

Akros Roadmap


2007 2011

AS1113

AS1124

AS1130

Smallest footprint PoE PD controllers

AS1135

AS1601AS1602

Industry First Active EMI/ESD

Industry First 802.3at PD

GreenEdge PoE

Industry First 2kV Isolation Power SoCs

AS19xxNon-isolated

DC-DC

PoE

Non-PoE

GreenEdge DC-DC SoC

AS1822

AS1824

AS1834

AS1844

AS1854

AS1424

AS1434

AS1444

AS1454

AS12xxNon-isolated

DC-DC

AS12xx Family of Single-

Output High Voltage

DC/DC Power Managers

Copyright 2011 Akros Silicon Inc. CONFIDENTIAL & PROPRIETARY

Addressing New Markets

Consumer Electronics– Set Top Boxes

– LCD TVs

– DVRs

– Printers

– Indoor WiFi, WiMax & LTE Access Points

Industrial– Industrial Ethernet

– Motor Control

– Automotive Power & Entertainment

Others– 48V telecom, datacom and security systems

– Enterprise routers, switches and server blades


AS12xx Product Intro

Single Output DC-DC Converter Family

Wide Input Range Capable: 8.5-57V– VIN 8.5-57V (AS1257)

– VIN 8.5-28V (AS1228)

– Applications for VIN > 57V with simple BOM additions

Product Features– 8.5V to 57V Input Voltage

– High Efficiency DC-DC Design Capable, 90% typical

– Low No-Load Power for Energy Star and EUP/CoC Compliant Designs

– Programmable PWM Frequency, 100-500 KHz

– Programmable Soft Start

– Over Temperature Protection

– Industrial Temperature Range, -40° to +85°C

– 5x5 mm, 20 lead QFN Package, RoHS compliant



• DC-DC conversion from high input voltage to low output voltage.

• 100W power management solution based on Flyback/Forward

topologies.

• Isolated and non-isolated architectures

• Integrated features, such as ESD/EMI, programmable PWM frequency,

better thermal protection, programmable soft-start.

• Large output current with lower voltage can drive multiple end devices

from a single output rail.

AS12xx Advantages


AS12xx Product Family

Application Solutions

Isolated Non-Isolated Isolated Non-Isolated Isolated Non-Isolated Isolated Non-Isolated

Typical Application Power 5W - 50W 5W - 50W 5W - 30W 5W - 30W 50W - 100W 50W - 100W 30W - 60W 30W - 60W

Input Voltage 8.5V - 57V 8.5V - 57V 8.5V - 28V 8.5V - 28V 8.5V - 57V 8.5V - 57V 8.5V - 28V 8.5V - 28V

Topology supported Flyback High-Side Buck Flyback High-Side Buck Forward Buck Forward Buck

PWM Frequency

100 - 500 Khz

(Programmable)

100 - 500 Khz

(Programmable)

100 - 500 Khz

(Programmable)

100 - 500 Khz

(Programmable) 350 KHz (Fixed) 350 KHz (Fixed) 350 KHz (Fixed) 350 KHz (Fixed)

Integrated Low Side N-FET

Driver √ √ √ √ √ √ √ √

Integrated High Side P-FET

Driver √ √ √ √

AS1257 AS1228 AS1260 AS1230


• Integrated EMI/ESD reduces external component count and test cost

• Variable frequency enables smaller magnetic components and lower

costs for smaller external components

• Programmable soft start, providing significant design flexibility

• Industry best Gate drive output resistance

• Industry lowest Gate drive rise and fall times

Strong Competitive Advantages

AS12xx Application Diagrams


DC-DC Isolated Synchronous Flyback Application

COMP CSS

CS

NDRV

FSEL

VIN

VOUT

VIN

8.5-57V

AS1257

FBGNDOpto-Coupler /

Compensation

DC-DC Non-Isolated Buck Application

FBCSS

CS

NDRV

FSEL

VIN

VOUT

VIN

8.5-57V

AS1257

COMPGND

AS12xx Application Diagrams


AS1257 DC-DC Isolated Synchronous Flyback Application, 8.5-90V Input

COMP CSS

CS

NDRV

FSEL

VIN

VOUT

VIN

8.5-90V

AS1257

FB

GND

Opto-Coupler /

Compensation

Max Input

Voltage is

limited by Q1

specification

Q1

Telecom/Datacom 48V Backplane Platforms

48 VDC

5VAS1257

DC/DC

Power Manager

CPU, Memory,

ASICs, etc.

Isolated

5VAS1257

DC/DC

Power Manager

CPU, Memory,

ASICs, etc.

Isolated

5VAS1257

DC/DC

Power Manager

CPU, Memory,

ASICs, etc.Non-Isolated

5VAS1257

DC/DC

Power Manager

CPU, Memory,

ASICs, etc.Non-Isolated

Blades can be designed for Isolated or Non-Isolated 48V Bus Power Applications


Akros Silicon

Power Design Note

48V ATCA Blade Power

(Isolate or Non-Isolated)

OEM DC-DC Power Supplies

COMP CSS

CS

NDRV

FSEL

VIN

AS1228

FBGNDOpto-Coupler /

Compensation

VBIAS

COMP CSS

CS

NDRV

FSEL

AS1257

FBOpto-Coupler /

Compensation

VIN

GND

VBIAS

Isolated Single Output 12v and 24V OEM Power Supplies


12

VDC

24

VDC

15-28

VDC

27-75

VDC

Akros Silicon

Power Design Note

Isolated DC-DC OEM

Power Supplies

OEM Supply ApplicationsEarth moving equipment

Heavy trucks

Buses

Marine vehicles

CB radios

12 or 24 Volt lighting systems

AM/FM sound systems


Thank You

Akros Silicon

GreenEdgeTM InnovationsIn Energy Management

www.AkrosSilicon.com

http://www.akrossilicon.com/

akros products overview€“ low no-load power for energy star and eup/coc compliant designs –...

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