Intersil

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

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

3. Intersil’s Core Capabilities and Technologies High Performance Analog Light and motion sensing Laser drivers Video Power Conversion Vcore power managementBuck 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

4. Four Product Groups Addressing Key Markets Wired/Wireless InfrastructureServers and StorageIndustrialIndustrial & Infrastructure Computing PCConsumer HandheldConsumer DisplayMobile Power Automotive RadHard AerospaceHigh Precision AnalogPrecision Products • SecurityMotion and Light SensingSpecialty AnalogSpecialty Products 4

5. PFC Controller Family: ISL6730A/B/C/D&ISL6731A/B • 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 • 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 5

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

7. 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 Negative Capacitance Enables Smaller Size (Cont’d) STANDARD EMI Filter EMI Filter Moves After Rectifier C1 +C2+C3 - CEQ = 1.41uF - 1.09uF = 0.32uF C1 +C2+C3 = 1.04uF 7 Conventional Control Negative Cap Control

8. Problem with a Conventional PFC Solution Bulky EMI Filter PFC EVAL BOARD: P = 300W, ONE CYCLE CONTROL iin + va  HEATSINK PFC ic1 ic2 L1 ia ic3 L2 L3 ic= ic1 + ic2 + ic3 C1,2,3 prefer bigger size. But limited by power factor requirement. L3 is sized to meet the differential mode noise attenuation. EMI C1, C2 Noise Suppression L3, Differential Noise Suppression L2, Common Mode Noise Suppression Input voltage and current phasor diagram. 8

9. Intersil Solution: Create an Equivalent Negative Capacitor to Cancel Effect of the Input Capacitors CONVENTIONAL CURRENT CONTROL VLINE IL + ICIN Im iin = ip + ic iC Current Control with CEQ ia iin VLINE IL + ICIN q va Re ip icn ip = ia + icn 9

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

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

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

13. 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. Key Feature #5: Open Loop Protection Increases Reliability 13

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

15. ISL673x : Industry’s Best Performance @ 750W Major Customer Spec 15

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

17. Specs: VIN=90V - 265VAC  VO=390VDC 124×80×37 mm3 Intersil Provides Full Evaluation Board Support 300W ISL6731AEVAL1Z (124kHz) ISL6731BEVAL1Z (64kHz) 300W 64kHz ISL6730BEVAL1Z ISL6730DEVAL1Z ISL6730B ISL6730D ISL6730A ISL6730C ISL6731A ISL6731B Specs: • VIN=85V - 265VAC • VO=390VDC •Fosc=124kHz • 124x80x38 mm3 85W ISL6730AEVAL1Z ISL6730CEVAL1Z Specs: • VIN=90V - 265VAC • VO=390VDC • 121x96x38 mm3 750W ISL6731AEVAL2Z (124kHz) ISL6731BEVAL2Z (64kHz) 17

18. Intersil Delivers Innovative PFC Control Solutions • 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 18