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Intersil A Power Management Company Innovative PFC Control Solutions Staff Applications Engineer October 24, 2014 Power Technology Innovation Application Forum Shenzhen, China Alan Yu

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Intersil Overview Intersils Innovative Power Factor Correction (PFC) Controllers Advantages of PFC Control Solutions Intersil Support, Design Tools and Evaluation Boards Agenda 2

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Intersils Core Capabilities and Technologies Intelligent Power Management Multi- phase Modulation Radiation Hardened & High Reliability Process and Packaging Precision Analog High Performance Analog Light and motion sensing Laser drivers Video Power Conversion Vcore power management Buck Boost/Regulation Digital Power Best-in Class Rad Hard In-house ELDRS radiation testing facility MIL-PRF-38535 compliant and 100% burned in Innovative Process Proprietary process technology Multi-source, high reliability 3

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Four Product Groups Addressing Key Markets Wired/Wireless Infrastructure Servers and Storage Industrial Industrial & Infrastructure Security Motion and Light Sensing Specialty Analog Specialty Products Automotive RadHard Aerospace High Precision Analog Precision Products Computing PC Consumer Handheld Consumer Display Mobile Power 4

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PFC Controller Family: ISL6730A/B/C/D & ISL6731A/B Patented Negative Capacitance Technology - Better THD performance - Better PF performance - Smaller EMI filter components - Support high freq operation Switching Freq Jittering - 75%-100% by VIN pin voltage - Better conduction EMI Performance Intelligent Burst mode - User adjustable pulse skipping level PNFoscSkip ModePackageStatus ISL6730A124kHzYes-FixedMSOP-10Released ISL6730B62kHzYes-FixedMSOP-10Released ISL6730C124kHzNoMSOP-10Released ISL6730D62kHzNoMSOP-10Released ISL6731A124kHzYes-ProgrammableSOIC-14Released ISL6731B62kHzYes-ProgrammableSOIC-14Released Flexible packaging - 62K & 124K FSW option - 10 pin MSOP or 14 pin SOIC package Robust Design - CCM mode operation Extensive Protection - Input rail brownout protection -Adjustable OVP Better control over board response - Dual protection from over current Cycle by Cycle Current Limit Input power limit 5

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Key Feature #1: Negative Capacitance Provides Low THD, High PF and Smaller Size Solution Over load and line conditions: Small phase shift High PF Low THD Intersils PFC Controller Performance Outperforms the Digital Controlled PFC Without Requiring a MCU/DSP (and Firmware) Superior Performance! and Low Cost! Superior Performance! and Low Cost! Preferred application choice with very tight THD/PF spec VIN Iin PH Shift 6

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Negative Capacitance Enables Smaller Size (Contd) Allows Smaller X-Cap size while meeting or improving THD/PF performance Allows shift of EMI filter after bridge rectifier Eliminating the need for safety-grade parts Reducing EMI filter cost and size Reduced system cost & size while meeting or improving THD and PF performance EMI Filter Moves After RectifierSTANDARD EMI Filter C1 +C2+C3 = 1.04uF C1 +C2+C3 - CEQ = 1.41uF - 1.09uF = 0.32uF Conventional Control Negative Cap Control 7

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PFC Problem with a Conventional PFC Solution PFC EVAL BOARD: P = 300W, ONE CYCLE CONTROL EMI C1, C2 Noise Suppression L3, Differential Noise Suppression L2, Common Mode Noise Suppression L1 HEATSINK L3 L2 Input voltage and current phasor diagram. +va+va i c1 iaia i c2 i c3 i c = i c1 + i c2 + i c3 i in C1,2,3 prefer bigger size. But limited by power factor requirement. L3 is sized to meet the differential mode noise attenuation. 8 Bulky EMI Filter

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Intersil Solution: Create an Equivalent Negative Capacitor to Cancel Effect of the Input Capacitors Im Re iCiC iaia vava i in i cn ip ip = ia + icn CONVENTIONAL CURRENT CONTROL V LINE I L + I CIN Current Control with CEQ V LINE I L + I CIN ic iin = ip + ic 9

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Key Feature #2: ISL6731A/Bs Auto Skipping Provides High Efficiency @ Light Load Programmable Skip Threshold (ISL6731A/B) 10

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Key Feature #3: Dedicate OVP Pin Provides Flexible, High Reliability Required for Industrial Applications Dedicate OVP pin (ISL6731A/B) 11

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Key Feature #4: Frequency Modulation Provides Low EMI Frequency Modulation: reduces EMI filter size 12

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Key Feature #5: Open Loop Protection Increases Reliability When the FB pin is below 10%, the device is put into shutdown mode. There is an internal pull-down current source for open loop protection to avoid run-away. 13

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ISL673x: True Competitive Board Evaluation @ 300W Intersil stands out Intersil & Competition tested under same circuit/condition 14 Comp. A Comp. B Comp. C Comp. A Comp. B Comp. C Comp. A Comp. B Comp. C

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ISL673x : Industrys Best Performance @ 750W 15 Major Customer Spec

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Intersil PFC (AC/DC) + ZVS (DC/DC) at 750W DC/DC ISL6754 AFB AC/DC ISL6731 PFC 16 Major Customer Spec

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Specs: V IN =90V - 265V AC V O =390V DC 1248037 mm 3 300W 64kHz ISL6730BEVAL1Z ISL6730DEVAL1Z 85W ISL6730AEVAL1Z ISL6730CEVAL1Z Specs: V IN =85V - 265V AC V O =390V DC Fosc=124kHz 124x80x38 mm 3 ISL6730B ISL6730D ISL6730A ISL6730C 300W ISL6731AEVAL1Z (124kHz) ISL6731BEVAL1Z (64kHz) ISL6731A ISL6731B Specs: V IN =90V - 265V AC V O =390V DC 121x96x38 mm 3 750W ISL6731AEVAL2Z (124kHz) ISL6731BEVAL2Z (64kHz) 17 Intersil Provides Full Evaluation Board Support

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Best-in-Class PFC Controllers Outperform Digital Control Easy-to-Use PFC Solution with No Software Programming Required Highly Integrated with Full Feature-Set Provides a Low Cost Solution to Challenging Power System Designs Excellent Engineering Support with Design Tools and Evaluation Boards Intersil Delivers Innovative PFC Control Solutions 18

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