Sales Training Presentation FAN5646: Programmable Indicator “Soft” LED Blinker with TinyWire™ Interface Sales Training Presentation

Introduction FAN5646 is a programmable indicator LED blinker IC for mobile handsets and consumer devices Compact and flexible solution that enables designers to program different blink patterns TinyWire™ digital interface to control and program LED blinking pattern Small form factor WLCSP and SC70 package formats Minimizes power consumption to extend battery life Available in 2 versions: FAN5646-01: Follow-mode version where LED stays on for as long as control pin is high FAN5646-00: LED blinking pattern repeated continuously while control pin is high

FAN5646 Programmable Indicator “Soft” LED Blinker Features LED soft blink with logarithmic fade up and down Follow or repeat pattern modes when apps processor powered down TinyWire™ digital interface to program different lighting patterns Digital control (single wire) Compatible with 1.8V logic High-side current driver 80mV dropout @ 20mA IOUT (max) 45µA operating quiescent current Pkg: SC70 & 0.85x0.85mm WLCSP-4 Applications Mobile Handsets Bluetooth Headsets PMP and MP3 Players

Minimizes System Power Consumption Flexibility FAN5646 Key Advantages Minimizes System Power Consumption Flexibility Small Solution Footprint When visiting customers and introducing them to FAN5646, explain these 3 key advantages/strengths to customer’s engineers to reinforce the value FAN5646 brings to their designs

1. Minimizes System Power Minimizes overall system power in ultra-portable electronics FAN5646 blinks programmed pattern of LED autonomously while system processor is in sleep mode System processors typically consume ~100mA in operation mode Result = Longer Battery Life FAN5646 Sleep Mode One of the biggest strength of using FAN5646 is that it saves the overall system power since it does not require the system processor/CPU to be active to blink the indicator LED in a programmed blinking pattern As a result this saves current consumption which is extremely valuable in battery-operated ultra-portable electronics since CPUs can consume as much 100mA of current thus prolonging the battery life When FAN5646 is implemented in a design, the engineer will program a LED blinking pattern into the chip via the TinyWire interface and when it is running it allows the CPU to be in sleep/standby mode thus conserving power Also if the CPU is running, it allows it to be freed to do other tasks Customer may also raise an objection by stating that if they use GPIO to blink and drive LED plus save power; they can do the same thing as FAN5646, click on the action button in the upper right hand corner of slide to go to slide to counter this argument

2. Flexibility Allows design engineer to easily program LED blink pattern Single-wire digital interface to minimize number of pins Program up to 2 different pulse widths Set brightness level of LED Multiple modes of operation Idle, Play, Follow, Program and One-Shot The TinyWire interface is a single-wire digital interface that allows design engineers to easily program the LED blinking pattern The engineer can set the rise and fall times plus the ON and OFF times for the LED Additionally the dimming/brightness level of the LED can be programmed too It also allows the user to program two different pulse widths There are 4 modes of operation – IDLE, PLAY, FOLLOW and Program plus there is a mode called One-shot For a a very small device it enable many features in customers’ designs Mode LED Entry IDLE OFF CTRL low for > 200s PLAY Play Pattern CTRL high > 2s FOLLOW Follows CTRL CTRL high < 2s Program CTRL high < 50s

3. Small Solution Footprint Available in low-profile small form factor 4-bump WLCSP Package Size = 0.85mm x 0.85mm Combined with very low drop-out voltage, FAN5646 only requires single decoupling capacitor Total Solution Area = 1.67mm2 FAN5646 has a very low drop-out voltage which enables it to use only a single de-coupling capacitor thus minimizing the overall solution cost Available in a very small 0.85x0.85mm 4-bump WLCSP form factor, the FAN5646 is one of the smallest LED drivers in the market today As a result, the overall footprint of the FAN5646 is very small – under 1.67mm2 Therefore not only does the solution occupy a minimal amount of PCB real estate it minimizes the overall cost

Not Enough Outputs Lower Efficiency WLCSP Form Factor FAN5646 Objections Not Enough Outputs Lower Efficiency WLCSP Form Factor These 3 objections or barriers that may be encountered when visiting customers who balk at using FAN5646 in their design The following slides provides counter arguments to these objections One objection that may be raised and sometimes always is, is the cost; I do not have a slide dedicated to it since many customers will bring it up but I do have slides to counter this argument and how customers would implement a low cost solution with the same enhanced features, click on the action button in the time right corner of this slide

1. Not Enough Outputs FAN5646 designed for applications where only 1 indicator blinking LED is needed One solution is to use multiple FAN5646 devices to address need for more LED outputs Currently, FSC has FAN5647 – RGB programmable indicator blinking LED IC in concept stage Evaluation board with test chip is available for feasibility and demonstration purpose only Waiting for customer feedback A common objection may be that the customer will want to use FAN5646 but needs to use 3 to do an RGB indicator light and would balk at using so many in his/her project thus increasing the cost FAN5646 was originally designed to support 1 indicator LED One solution is to use multiple FAN5646 and Motorola has decided to do this in some of their new handset platforms – they use 3 FAN5646 in 2 platforms Also Fairchild has in concept stage FAN5646, a programmable RGB indicator LED driver – we are looking for feedback right now – click on the hyperlink to go to the FAN5646 product page

2. Lower Efficiency FAN5646 is a very efficient current source LED driver Very low drop-out voltage of 80mV to ensure enough headroom for LEDs with higher forward voltage Li-Ion batteries operate most of time between 3.6V to 3.8V FAN5646 would operate with very little power loss and efficiency would remain high – ratio of output voltage to input voltage Battery Discharge Curve for Sanyo’s 600mAh and 750mAh Li-Ion Batteries One objection that may or may not occur is low efficiency because FAN5646 is a linear device It should be important to note that a Li-Ion battery spends most of its time between 3.6V to 3.8V so the argument of the advantage of a charge pump is mute since it would spend most of its time 1x or bypass mode; the charge pump would only be engaged to 1.5x when the battery voltage fell below the forward voltage of the diode The diagram on this slide shows the battery discharge curve for Sanyo’s 600mAh and 750mAh Li-Ion batteries FAN5646 has a very low drop-out voltage of 80mV to ensure very long operation when battery voltage begins to fall

2. Lower Efficiency (cont.) FAN5646 Operating Conditions Average VBAT = 3.8V VLED = 3.3V IOUT = 20mA Efficiency = (3.3V / 3.8V) = 87% An example of FAN5646 efficiency under the conditions stated above The graph to the right shows the efficiency of FAN5646 Avg. Efficiency = 85% to 90%

3. WLCSP Some customers may have problems using WLCSP Either have had no experience or poor assembly yield Also size may too small for customers to feel comfortable manufacturing with it FAN5646 is also offered in 5-lead SC70 package It’s a standard package that has been used for many years There are still customers who are reluctant to manufacture WLCSP products especially if the form factor and pitch is very small Often times it is an uphill battle to persuade them to use WLCSP-based products and they have built-in biases To address this concern, FAN5646 is offered in SC70 package which is a standard JEDEX package that has been used for many years

FA5646 Applications Ultra-Portables PC Products Consumer Other Mobile Handsets Bluetooth Headsets MP3 Players PMP Players Mobile Internet Devices PC Products Notebooks Routers PC Cards DSL/Cable Modems LCD Monitors Printers (All-in-One) Consumer Electric Shavers Digital Cameras Video Camcorders Copiers / Fax Machines Set-top Boxes Electric Toothbrushes Cordless Phones Other Power Tools Security Cameras Femtocell BTS

Potential FAN5646 Customers Mobile Handsets Bluetooth Headsets MP3/PMP Players Cameras & Camcorders PC Products Printers & Fax Machines Consumer Products Nokia Plantronics Apple Sony Dell HP Philips Sony/Ericsson Jabra Samsung Brother Dewalt GN Netcom JVC Lenovo Oral B (P&G) Motorola iRiver Olympus Toshiba Lexmark Black & Decker LG Mobile Creative Labs Panasonic Fujitsu Canon Braun Kodak Epson Sanyo Pantech/Curitel SEMC Microsoft Casio Huawei OKI Remington Cardo Nextar Nikon Sierra Wireless Norelco NEC Jawbone SanDisk Novatel Makita Qualcomm Netgear Bosch Broadcom Cisco/Linksys Infineon D-Link ST/EMP Belkin

Summary FAN5646 provides value to engineers who implement it in their designs Saves overall system power Occupies a very small amount of PCB space Easy to use and program different patterns Enhances the end-product’s features without impacting power budget High value product at cost effective price point

Pricing & Availability Fairchild Part Number Version Package Unit Price @ 1ku Availability FAN5646UC00X 00 WLCSP-4 $0.51 July 2009 FAN5646S700X SC70-5 Now FAN5646UC01X 01 FAN5646S701X

Technical Materials FAN5646 Datasheet http://www.fairchildsemi.com/ds/FA/FAN5646.pdf FAN5646 Product Overview http://www.fairchildsemi.com/pf/FA/FAN5646.html Evaluation Boards Request via KICC or external web Samples http://www.fairchildsemi.com/ShoppingExperience/action/displayItems?itemType=SAMPLE&gpn=FAN5646

Marketing & Apps Contacts Marketing Contact Wayne Seto wayne.seto@fairchildsemi.com +1-408-822-2197 Applications Support Juha Talonen juha.talonen@fairchildsemi.com +358 10 397 6203

Appendix

Low Cost Blinking LED Solution #1 System Processor GPIO Low cost solution is use system processor’s GPIO to blink LED pattern Limited functionality compared to FAN5646 Output current ~ 2mA Limited to no dimming capability Only simple blink patterns can be programmed Customers may raise an objection in regards to implementing FAN5646 since they have a lower cost version such as using the GPIO of the system processor to drive the blinking LED They may also say that it does not consume a lot of power since the baseband processor (for handsets) will shut off non-essential parts and let the registers stay on to blink the LED However this solution does not have the capability of enhancing the end-user experience to do different dimming levels and unique blink patterns and it can only drive up to 2mA of current whereas FAN5646 can go up to 20mA

Low Cost Blinking LED Solution #2 System Processor GPIO Regulator Li-Ion Battery Low cost solution is use system processor’s and FET to blink LED pattern Consumes more power since it requires active use of processor to execute enhanced LED blink pattern It is lower cost than FAN5646 but does not save overall system power and extend battery life One objection that may be raised and sometimes always is, is the cost; customers will balk at paying more for a solution that they can implement by connecting a FET to the LED, CPU and battery – they will say the FET only costs me $0.02 but the real cost is that the CPU must contain the blink pattern program and must be active all the time to enable the blinking feature which results in more current being consumed The question to ask the customer is whether it is acceptable to consume so much power in a battery-operated product to enable this feature – would his/her end-customer be happy with having to re-charge the battery more frequently? Therefore try to convey that FAN5646 lowers the total cost of ownership which includes the end-customer’s user experience

FAN5647 Programmable Indicator “Soft” RGB LED Blinker Features 4096 RGB color combinations with logarithmic fade up and down Follow or repeat pattern modes when apps processor powered down TinyWire™ digital interface to program different lighting patterns Digital control (single wire) Compatible with 1.8V logic High-side current driver 80mV dropout @ 20mA IOUT (max) 45µA operating quiescent current Pkg: UMLP-6 & WLCSP-6 Status Product Definition Stage Customer Feedback Needed FAN5647 is in product concept stage and it has not been approved for product development If there is sufficient interest and Fairchild approves the development of it, it will not take long to produce samples for customers since it is a derivative of FAN5646 and the design blocks are already in place Questions to ask for customer feedback: Do you use or plan to use a common anode RGB LED? Would you connect the input of this chip to the battery? If not then to what regulated supply rail? What is current solution and why is it not good enough? (if applicable)