Monolithic Power Systems, Inc. · NASDAQ:MPWR
Monolithic Power Systems — Technical Presentation (November 2023)
36 slides from Monolithic Power Systems's technical presentation, November 2023
Slide 1: Isolated Power Solutions for Industrial, Renewable Energy and EV Ecosystems
Isolated Power Solutions for Industrial, Renewable Energy and EV Ecosystems Session 1: 8AM PDT | 11AM EDT | 4 PM CET Session 2: 11AM PDT | 2PM EDT | 7 PM CET November 2023 rev 20180504
Slide 2: Agenda
Agenda • The Rise of Renewable Energy Applications • EV and DC Fast-Charging System Overview • Advantages of LLC Topologies vs. Flyback • Isolated Gate Driver and Power Module Overview • Digital Isolators
Slide 3: The Rise of Green Energy
The Rise of Green Energy • Decarbonization is driving a massive shift in renewable energy infrastructure Charging Stations/Energy Storage • Solar inverters • DC charging stations • Electric vehicles • Energy storage • Automation and drives • Many systems are shifting to 400V/800V, Battery to Grid AC
Slide 4: EV Sales Volumes Are Skyrocketing
EV Sales Volumes Are Skyrocketing BEV/PHEV Global Sales Projection 2018–2026 40 35 34.0 Content by Application 30 26.5 ~30% 25 5x OBC, DCDC, Inverter BMS, Aux Millions 21.0 PHEV/ 20 BEV 14.5 15 10.5 ~70% 10 6.8 5 3.2 2.1 2.3 - 2018 2019 2020 2021 2022 2023* 2024* 2025* 2026* *2023–2026 are projectio
Slide 5: Electric Vehicle Systems
Electric Vehicle Systems Battery Management System Manages battery health, state-of-charge, and vehicle battery cell balancing Onboard Charger & DC/DC Converter The onboard charger helps convert AC voltage into DC voltage when using an AC charger. The Traction Inverter DC/DC converter is used to con
Slide 6: DC Fast-Charging Systems
DC Fast-Charging Systems DC Fast-Charging Station • Converts a 3-phase AC voltage into a 250V to 800V DC voltage • Contains several of the subunits on the right to get to a 350kW+ output • Power factor correction (PFC) stage converts an AC voltage into an intermediate DC voltage • 3-phase, 3-level r
Slide 7: Isolated Gate Driver/Power Supply Roadmap
Isolated Gate Driver/Power Supply Roadmap MP18811 MP1918 MID1W2424 MID3W2424 4A/4A, 3kVRMS 100V Half-Bridge GaN 3W Isolated Power Module, 1.5W Isolated Power Module, 50ns Propagation Delay Driver, 3.6VCC to 5.5VCC, 3kVRMS, 24VIN to 24VOUT, 5kVRMS, 24V to 24V, Single- with ±5ns Distribution, 10ns Pro
Slide 8: MPQ18913/4 – 30V, 0.5A LLC Transformer Driver for Isolated Bias Supplies
MPQ18913/4 – 30V, 0.5A LLC Transformer Driver for Isolated Bias Supplies FEATURES • 5V to 30V Input Voltage Range (50V Surge) • Half-Bridge Transformer Driver for Isolated LLC Resonant Converters • Configurable Frequency: 750kHz to 5MHz (MPQ18913) or 750kHz to 24V 10MHz (MPQ18914) +20V +20V C1 • Ext
Slide 9: MPQ18913 Evaluation Board
MPQ18913 Evaluation Board 24VIN, 24VOUT, 1.33MHz VIN=26.4V EVQ18913-D-00A Evaluation Board
Slide 10: MID1W2424A – 1.5W 24V Isolated Module
MID1W2424A – 1.5W 24V Isolated Module FEATURES • 5V to 30V Input Voltage Operation Range (50V Surge) MID1W2424A • 3kVRMS, 5kVRMS Isolation Voltage Options FLT NC +18V D1 • 1.5W Output Power Options EN SW2 C2 Cr • Integrated Transformer VIN VIN SW1 RL C1 • 60% Efficiency with Full Load GND1 GND1 NC D
Slide 11: PCB Footprint Analysis – Isolated Bias Supply
PCB Footprint Analysis – Isolated Bias Supply MPS Solution Competitor Flyback Solution 17.8mm 27.5mm Flyback Converter 40% Smaller Solution Size: 109mm2 Solution Solution Size: 180mm2 Total Area: 196mm2 Size! Total Area: 275mm2 Components: 21 Components: 26
Slide 12: MPQ18913 vs. Flyback BOM Cost Analysis
MPQ18913 vs. Flyback BOM Cost Analysis MPQ18913 PSR Flyback LLC Resonant Topology Converter Topology 46% Lower HV Capacitor 11.6µF (= $0.12) 4.7µF + 0.1µF (= $0.05) BOM LV Capacitor 2µF (= $0.01) 64µF + 47nF (= $0.32) Cost! Schottky Diode 2 (= $0.08) 1 (= $0.04) Zener Diode 0 3 (= $0.12) Switching D
Slide 13: MPQ18913 vs. MID1W2424 BOM Size Comparison
MPQ18913 vs. MID1W2424 BOM Size Comparison Discrete Solution Module Solution MPQ18913 MID1W2424 PCB Area for LV Size 25mm2 120mm2 Transformer Size 7mmx9mm = 63mm2 N/A PCB Area for HV Size 30mm2 30mm2 Total Area 120mm2 150mm2 Max Height 9mm 2.65mm • Transformer height is estimated by the creepage req
Slide 14: MPQ18913 vs. Flyback Topology
MPQ18913 vs. Flyback Topology MPQ18913/4 Competitor PSR LLC Resonant Topology Flyback Topology Switching Frequency High (up to 10MHz) Low (<400kHz) Transformer Size 13µH (11mmx6mm) 30µH (10mmx10mm) Utilizes leakage inductance Leakage inductance induces Leakage Inductance as part of resonant tank vol
Slide 15: Isolated Power Supplies for Gate Drivers
Isolated Power Supplies for Gate Drivers
Slide 16: Isolated Power Supplies for Gate Drivers (contd.)
Isolated Power Supplies for Gate Drivers (contd.)
Slide 17: Transformer Requirements for Gate Driver Power Supply
Transformer Requirements for Gate Driver Power Supply Isolated power supply Vbus=800V Trends on High-Power Systems: C_ps ▪ Bus Voltage Increase → Higher Isolation Voltage GDIC Needed for Transformers ▪ Higher dV/dt → Requires Lower Interwinding High dvdt>100V/ns Capacitance GDIC ▪ Assuming 20pF Capa
Slide 18: Low-Capacitance Transformer Design
Low-Capacitance Transformer Design ϵ0 𝜖𝑟 𝐴 𝐶𝑊 = 𝒅 To decrease CW → increase the distance between windings d
Slide 19: Low-Capacitance Transformer Design
Low-Capacitance Transformer Design ϵ 0 𝜖𝑟 𝐴 𝐶𝑊 = 𝒅 To decrease CW → increase the distance between windings Increase the distance between windings → increase LLK 8𝜋 2 × 𝑟 × 𝑁𝑃2 𝑏1 + 𝑏2 𝐿𝐿𝐾 = 𝒅+ ℎ 3 d
Slide 20: Flyback Converter Operation with LLK
Flyback Converter Operation with LLK Flyback Converter Voltage across Primary
Slide 21: Flyback Converter with Clamping Circuits
Flyback Converter with Clamping Circuits SW voltage spikes increase the device rating, complicate snubber design, generate loss and noise, and limit the max operating frequency. The larger the leakage, the worse the performance of the flyback.
Slide 22: LLC Converter Operation with LLK
LLC Converter Operation with LLK Soft Switching - Z → High witching Frequency chievable with
Slide 23: MPQ18913/4 vs. Flyback SW Waveform
MPQ18913/4 vs. Flyback SW Waveform The MPQ18913 uses a soft switching topology, resulting in no overshoot/ringing on the switch node, vs. hard switching in a flyback that has overshoot and ringing on the switch node. MPQ18913 SW Waveform (Top) Competitor Flyback SW Waveform
Slide 24: MPQ18913/4 vs. Flyback Topology Input Waveform
MPQ18913/4 vs. Flyback Topology Input Waveform The MPQ18913 uses a soft switching topology, resulting in better EMI performance vs. hard switching in a flyback that can couple switching noise to the input rail (circled in red). MPQ18913 Input Voltage Waveform (Bottom) Competitor Flyback Input Voltag
Slide 25: Isolated Gate Driver/Power Supply Roadmap
Isolated Gate Driver/Power Supply Roadmap MP18811 MP1918 MID1W2424 MID3W2424 4A/4A, 3kVRMS 100V Half-Bridge GaN 3W Isolated Power Module, 1.5W Isolated Power Module, 50ns Propagation Delay Driver, 3.6VCC to 5.5VCC, 3kVRMS, 24VIN to 24VOUT, 5kVRMS, 24V to 24V, Single- with ±5ns Distribution, 10ns Pro
Slide 26: MP(Q)18811 - Isolated Single-Channel Gate Driver
MP(Q)18811 - Isolated Single-Channel Gate Driver FEATURES ⚫ 3kVRMS Input to Output Isolation (SOIC-8 NB) ⚫ CMTI >100kV/µs ⚫ TTL and CMOS Compatible Inputs ⚫ Differential-Input Control ⚫ Up to 30V Output Drive Supply with UVLO Options (5V/8V/10V/12V/15V) ⚫ Output Configurations: Single-Output with Mi
Slide 27: MP1883/5/71 ‒ Isolated Dual-Channel Gate Driver
MP1883/5/71 ‒ Isolated Dual-Channel Gate Driver FEATURES MP18831 Dual-Input HB VDDO ⚫ Flexible Configuration: Rich Family, Independent Dual-Channel C5 D1 VBUS Driver, Dual-/PWM-Input Half-Bridge Driver VDDI VDDI VDDA ⚫ Up to 5kVRMS Isolation C1 VDDI R1 OUTA C2 ⚫ CMTI >100kV/µs GNDI VSSA SW ⚫ TTL and
Slide 28: MIE1W0505A – 5V to 5V Isolated Module
MIE1W0505A – 5V to 5V Isolated Module FEATURES Typical Circuit • 3V to 5.5V Input Voltage Range • 5V/3.3V Output Voltage • 5V → 5V or 5V→ 3.3V >200mA (1W) VDDI VDDO • 3.3V → 3.3V >50mA (0.165W) • Excellent Load/Line Regulation Performance 3V to 5.5V 10µF 10µF 5V/200mA • 1W Output Rating Option GND1
Slide 29: MIE1W0505BGLVH Is Incredibly Small
MIE1W0505BGLVH Is Incredibly Small ’s solution ( G 4x5mm) is only 10% the total size of the market SOIC package, and only 2% of a traditional SIP package. 1.18mm Traditional SIP Package Market SOIC-16W Package MPS LGA (4mmx5mm) Package
Slide 30: MID3W2424A – 24V to 24V Isolated Module
MID3W2424A – 24V to 24V Isolated Module FEATURES Typical Circuit • 5V to 30V Input Voltage Range (Typically 24V ±10%) • Power Level 3W/6W, 87% Peak Efficiency • Transformer Turns Ratio • MID6W1224/MID3W1224: 1:2 Turns Ratio • MID6W1524/MID3W1524: 1:1.6 Turns Ratio • MID6W2424/MID3W2424: 1:1 Turns Ra
Slide 31: MID3W2424A Performance
MID3W2424A Performance VIN = 24V, IOUT = 0.25A (Full Load), TA = 25°C Output Regulation Efficiency vs. Output Current 30 100 90 OUTPUT VOLTAGE (V) 28 80 EFFICIENCY (%) 26 70 60 24 50 40 22 Vin=26.4V 30 20 Vin=24V 20 Vin=21.6V 10 Vin=24V 18 10 25 40 55 70 85 100 0 10 25 40 55 70 85 100 OUTPUT CURRENT
Slide 32: Digital Isolator Roadmap
Digital Isolator Roadmap No. of Channels MP27933 MP27942 5KVRMS, 150Mbps, 5KVRMS, 150Mbps, 6 Ch CMTI >100kV/µs, CMTI >100kV/µs, Forward/Reverse Ch = 3/3, Forward/Reverse Ch = 4/2, SOICW-16 SOICW-16 MP27931 MP27922 5KVRMS, 150Mbps, 5KVRMS, 150Mbps, CMTI >100kV/µs, CMTI >100kV/µs, 4 Ch Forward/Reverse
Slide 33: MP279xx – 4-Channel to 6-Channel Digital Isolator
MP279xx – 4-Channel to 6-Channel Digital Isolator FEATURES Typical Circuit • Wide 2.5V to 5.5V Input Voltage Range • Up to 150Mbps Data Rate, 20Mbps Option • Ultra-Low Power Supply Current 5V OUT • High Electromagnetic Immunity VIN VOUT MIDxxW0505A 10μF 10μF • >±100kV/μs Common-Mode Transient Immuni
Slide 34: MP279xx – 2-Channel Digital Isolator
MP279xx – 2-Channel Digital Isolator FEATURES Typical Circuit • Wide 2.5V to 5.5V Input Voltage Range • Up to 150Mbps Data Rate • Ultra-Low Power Supply Current • High Electromagnetic Immunity 2.5-5.5V 2.5-5.5V • >±100kV/μs Common-Mode Transient Immunity (CMTI) VDD1 VDD1 VDD2 VDD2 C1 C2 • 13ns Propa
Slide 35: Thank You!
Thank You! Electrification Technology Experience Quality Si Carbide Power | Analog Solutions B C D 12 Years Automotive industry Integration 950+ SKUs 0.1 DPPM Low component count Broad portfolio with flexible, Quality record Lower solution cost scalable solutions 2+ Billion Automotive units shipped
Slide 36: Thank you!
Thank you! mrS
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