Slide 1: Dual Gate MOSFET 48 V switch board Quick introduction Board V2.2
Dual Gate MOSFET 48 V switch board Quick introduction Board V2.2 IFAG ATV MOS 24.09.2024 1
Slide 2: SOA and RDSON comparison
SOA and RDSON comparison Dual Gate trench vs. Standard trench vs. Planar IAUTN08S5N012L IAUT300N08S5N011 IPB80N08S2-07 Dual Gate 80 V OptiMOSTM 5 Standard 80 V OptiMOSTM 5 Standard 80 V OptiMOSTM Trench technology Trench technology Planar technology SOA 1 ms at max VDS, TC = 25°C 14 A (Linear MOSFET
Slide 3: SOA comparison
SOA comparison Standard OptiMOSTM 5 vs. Dualgate Linear FET OptiMOSTM 5 Standard OptiMOSTM 5 Dual Gate (Linear FET) OptiMOSTM 5 10000 1000 1 µs 10 µs 1 µs 100 µs 1000 10 µs 100 1 ms 100 µs 70 A 1 ms ID [A] ID [A] 100 14 A 20 A 10 10 1.7 A 1 1 0.1 1 10 100 1 10 100 VDS [V] VDS [V] Dual Gate (Linear F
Slide 4: Transfer characteristics comparison
Transfercharacteristics comparison Standard OptiMOSTM 5 vs. Dualgate Linear FET OptiMOSTM 5 Standard OptiMOSTM 5 Dual Gate (Linear FET) OptiMOSTM 5 500 Min. VGSth 120 Min. VGSth 450 400 Typ. VGSth Typ. VGSth 100 350 Max. VGSth Max. VGSth 300 80 ID [A] ID [A] 250 60 A 60 200 150 40 100 60 A 20 50 Min
Slide 5: Dual Gate MOSFET 80 V Application examples
Dual Gate MOSFET 80 V Application examples Capacitor charging Short circuit clamping ▪ LINFET current limited via VGS adjustment ▪ DC limits the VDS voltage to avoid avalanche and according to transfer-characteristics. instead the MOSFET operates in linear mode. ▪ Pulsed capacitor charging to limit
Slide 6: Capacitor pre-charging with power resistor vs. Dual Gate MOSFET
Dual Gate MOSFET 80 V Capacitor pre-charging with power resistor vs. Dual Gate MOSFET Reduction of system cost (no pre-charge circuit needed) and acceleration of capacitor charging Pre-charging with power resistor I charge t V capacitor t Pre-charging with Dual Gate MOSFET I charge t V capacitor t 2
Slide 7: 48 V switch board (uni-directional) overview
Dual Gate MOSFET 80 V 48 V switch board (uni-directional) overview 2 channel 48V high-side 4 parallel IAUTN08S5N012L driver IC 2ED4820 max. 1.15 mΩ each Freewheeling MOSFET (optional) 100 µΩ shunts (each) Adapter Board Main Board 24 Sep 2024 Copyright © Infineon Technologies AG 2024. All rights rese
Slide 8: 48V disconnect switch with 80V OptiMOS 5 Dual Gate MOSFETs
48V DISCONNECT SWITCH A 48V disconnect switch with 80V OptiMOS 5 Dual Gate MOSFETs The 48V switch evaluation board supports fast pulsed capacitor charging with Dual Gate MOSFETs, to minimize system costs (no separate pre-charging path needed). NEW The board is active clamping capable to dissipate in
Slide 9: Simplified schematic Dual Gate 48V switch board
Simplified schematic Dual Gate 48V switch board Short-circuit clamping circuit Clamping circuit BAT+ Capacitor charging circuit • Drain-source voltage clamp of typically 71 V. IAUTN08S5N012L BJT Gate LIN (4 parallel) • Drain-source voltage slope limited to 4.7 k Gate ON typically 5 V/µs to ensure sm
Slide 10: PCB stack and thermal design
PCB stack and thermal design Vias (FR4 filled and Copper piece MOSFET Copper piece capped top and bottom) Source Drain 70 µm copper top layer 70 µm copper middle layer 1 1.55 mm FR4 70 µm copper middle layer 2 70 µm copper bottom layer Thermal foil Passive coolant 24 Sep 2024 Copyright © Infineon Te
Slide 11: Top case temperature thermal camera measurement
Top case temperature thermal camera measurement Ta = 25°C, natural convection, 35 minutes loading at ID = 250 A Top case temperature [°C] Time [min] 24 Sep 2024 Copyright © Infineon Technologies AG 2024. All rights reserved. 11
Slide 12: Dual Gate 48 V switch board with µC control
Dual Gate 48 V switch board with µC control 24 Sep 2024 Copyright © Infineon Technologies AG 2024. All rights reserved. 12
Slide 13: Capacitor charging setup – simplified schematic
Capacitor charging setup – simplified schematic VDS Icap 48 V 235 mF 33 mF Vcap 24 Sep 2024 Copyright © Infineon Technologies AG 2024. All rights reserved. 13
Slide 14: Capacitor charging 33 mF measurement setup
Capacitor charging 33 mF measurement setup Capacitor bank (supply voltage buffer) Arduino compatible adapter board on XMC4700 KIT Dual Gate Board Voltage sensing 33 mF capacitor Current sensing 24 Sep 2024 Copyright © Infineon Technologies AG 2024. All rights reserved. 14
Slide 15: Capacitor charging 33 mF (first three pulses)
Capacitor charging 33 mF (first three pulses) 24 Sep 2024 Copyright © Infineon Technologies AG 2024. All rights reserved. 15
Slide 16: Capacitor charging 33 mF (whole charging wave-form)
Capacitor charging 33 mF (whole charging wave-form) 24 Sep 2024 Copyright © Infineon Technologies AG 2024. All rights reserved. 16
Slide 17: Short circuit clamping setup – simplified schematic
Short circuit clamping setup – simplified schematic VDS IL 48 V 235 mF 6.5 µH 24 Sep 2024 Copyright © Infineon Technologies AG 2024. All rights reserved. 17
Slide 18: Short-circuit clamping measurement setup
Short-circuit clamping measurement setup Capacitor bank (supply voltage buffer) Arduino compatible adapter Dual Gate Board board on XMC4700 board Voltage sensing Current sensing 6.5 µH inductor 24 Sep 2024 Copyright © Infineon Technologies AG 2024. All rights reserved. 18
Slide 19: Short-circuit clamping measurement
Short-circuit clamping measurement 24 Sep 2024 Copyright © Infineon Technologies AG 2024. All rights reserved. 19
Slide 20: OneEye control suite – Dual Gate MOSFET part 1
OneEye control suite – Dual Gate MOSFET part 1 24 Sep 2024 Copyright © Infineon Technologies AG 2024. All rights reserved. 20
Slide 21: OneEye control suite – Dual Gate MOSFET part 2
OneEye control suite – Dual Gate MOSFET part 2 24 Sep 2024 Copyright © Infineon Technologies AG 2024. All rights reserved. 21
Slide 22: Disclaimer
Disclaimer ‒ The information given in this presentation is given as a hint for the implementation of the Infineon Technologies components only and shall not be regarded as any description or warranty of a certain functionality, conditions or quality of the Infineon Technologies component(s) ‒ The st
Slide 23: Cinfineon
Cinfineon