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ESL & Capacitors

ESL & Capacitors. ESL - Equivalent Series Inductance ‘ L ’. Ideal capacitor. Real world capacitor. Insulation Resistance ‘IR’ DC leakage current Energy loss. ESL ESL impacts the speed of the capacitor response in transferring energy to the load. ESR Limits current rating

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ESL & Capacitors

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  1. ESL & Capacitors ESL - Equivalent Series Inductance ‘L’ Ideal capacitor Real world capacitor • Insulation Resistance ‘IR’ • DC leakage current • Energy loss • ESL • ESL impacts the speed of the capacitor response in transferring energy to the load • ESR • Limits current rating • Impacts ripple voltage • Energy loss Page 1

  2. SMT Solid Polymer Aluminum Electrolytic Capacitors Top view of component • NSPL Series • Low ESL Solid Polymer Aluminum Electrolytic Capacitors • SPEC: http://www.niccomp.com/catalog/NSPL.pdf • 3-Terminal construction reduces Series Inductance ‘ESL’ by  50% • Decoupling and noise suppression in high-speed circuits • Improved response timein power circuits • Reduce the number of decoupling components used • Reduce PCB size - costs and component placement costs! • Operating Temperature Range: -55°C to +105°C • Capacitance Range 68uF to 560uF • Rated Voltage Range: 2.0V, 2.5V, 4.0V & 6.3VDC • +260°C Reflow Soldering Compatible Bottom view of component • Please contact NIC for evaluation samples and to review your requirements tpmg@niccomp.com Cross & Replace • ADVANTAGES: •  Stable with voltage, temperature and time • No voltage derating • No DC bias (weakness of MLCC) •  Reduce ripple voltage •  Eliminates piezoelectric ringing & singing •  Reduce number of capacitors used Page 2

  3. SMT Solid Polymer Aluminum Electrolytic Capacitors L x T W ESL = k x ESL Reduction by 3-Terminal Structure 2-terminal NSP series (+) Anode The smaller the capacitor ESL, the smaller the impedance loop, and the faster the capacitor response in transferring energy to the load, and the better the high frequency noise suppression ability Bottom view of component ESL loop impedance (-) Cathode 3-terminal NSPL series (+) Anode ESL in loop impedance is represented by Bottom view of component (-) Cathode where k is a constant 3-terminal NSPL has  50% lower ESL than standard 2-terminal NSP series Page 3

  4. SMT Solid Polymer Aluminum Electrolytic Capacitors 2 1.5 NSP181M2.5D6ZATRF 2.5V 180uF NSPL181M2.5D5YATRF 2.5V 180uF 1 ESL (nH) 0.5 0603 Size MLCC X5R 6.3V 22uF 0 0.1 0.1 10 10 0.01 1 100 Frequency (MHz) Typical ESL comparison between NSPL, NSP and MLCC  3-Terminal NSPL has low ESL, close to ESL of 0603 size MLCC Page 4

  5. SMT Solid Polymer Aluminum Electrolytic Capacitors 0.1 Impedance (Ohm) 0.01 0.001 0.01 1 100 0.1 10 Frequency (MHz) Typical Impedance (Z) comparison between NSPL, NSP and MLCC  3-Terminal NSPL has low Impedance (Z) over wide frequency range NSPL181M2.5D5YATRF 2.5V 180uF NSP181M2.5D6ZATRF 2.5V 180uF 0603 Size MLCC X5R 6.3V 22uF Page 5

  6. SMT Solid Polymer Aluminum Electrolytic Capacitors 0.1 NSPL221M2D5YATRF 2.0V 220uF, 1.1mmT 0.01 ESR (Ohm) NSPL331M2D1YATRF 2.0V 330uF, 1.4mmT NSPL471M2D6YATRF 2.0V 470uF, 1.9mmT 0.001 0.01 0.1 1 10 100 Frequency (MHz) Low ESR performance for NSPL series; 220uF, 330uF & 470uF Page 6

  7. SMT Solid Polymer Aluminum Electrolytic Capacitors 2 1.5 1 ESL (nH) 0.5 0 0.1 1 10 100 Frequency (MHz) Typical ESL example for each thickness: 1.1mm, 1.4mm and 1.9mm NSPL471M2D6YATRF 2.0V 470uF, 1.9mmT NSPL331M2D1YATRF 2.0V 330uF, 1.4mmT NSPL221M2D5YATRF 2.0V 220uF, 1.1mmT Page 7

  8. SMT Solid Polymer Aluminum Electrolytic Capacitors High frequency noise High ESL Better: lower noise Best: lowest noise NSPL Lowest ESL Page 8

  9. SMT Solid Polymer Aluminum Electrolytic Capacitors RCR ESR NSPL Low Profile 1.0mm (0.040”) Lowest ESR in NSPL series 0.003Ωwith10.2Arms RCR RCR derated over temperature 10.2Arms RCR @ ≤+45°C 7.14Arms @ >+45°C to ≤+85°C 2.55Arms @ ≥85°C Page 9

  10. SMT Solid Polymer Aluminum Electrolytic Capacitors NSPL Anode (+) Terminal 2 Cathode (-) Terminals Anode (+) Land Pad 2 Cathode (-) Land Pads Page 10

  11. SMT Solid Polymer Aluminum Electrolytic Capacitors NSPL Series Low ESL Solid Polymer Aluminum Electrolytic Capacitors • APPLICATIONS: • High Speed Transient for IC • Decoupling • Output capacitor DC-DC • Ripple (noise) Filtering • Bulk Storage • Load Stepping • END PRODUCTS • Servers & Routers • Telecomm, Datacomm • PCs, Tablets & Laptops • Embedded Computing • HD Video & Gaming • Workstations • Cellular Base Stations • Wireless Access Points • Set Top Box Co-sell NSPX series with NIC Products: → NPIM – Molded Power Inductors → NMC– X5R & X7R High Capacitance MLCCs → NCLP, NCLS – Current Sensing Resistors → NTPx – Polymer Cathode Tantalum Capacitors SPEC: http://www.niccomp.com/catalog/NSPX.pdf Page 11

  12. SMT Solid Polymer Aluminum Electrolytic Capacitors 44 Polymer Capacitors: Application: motherboard designed for extreme over-clocking • Application Requirements: • Fast response (low ESL) • High current capability • Stability over voltage & temperature Page 12

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