Intersil ISL71441MEV1Z Manual
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Intersil ISL71441MEV1Z Manual

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ISL71441MEV1Z
The ISL71441MEV1Z evaluation board evaluates the
performance of the radiation tolerant
half-bridge GaN FET driver in an open-loop Buck
configuration. The ISL71441MEV1Z evaluation board
includes the GaN FET half-bridge driver, Renesas
GaN FETs, and a Buck converter power stage
inductor and output capacitors.
For more information about the ISL71441M, refer to
the ISL71441M Datasheet.
4.75V to 13.2V
Dead Time
Control
Figure 1. Application Diagram ISL71441M Driving GaN FET Half Bridge
R34UZ0016EU0100 Rev.1.00
Jul 3, 2023
ISL71441M
12V
VDD
PWM
ISL71441M
Half
RDU
Bridge
Driver
RDL
PVCC LDO
4.5V to 5.5V
Evaluation Board Manual
Features
▪ 4.75V to 13.2V VDD power supply range
▪ 300kHz to 1MHz PWM frequency range (external
component limited)
▪ Bridge voltage (V_BUS) range: Up to 13.2V
▪ 5V max recommended buck output voltage
(external component limited)
▪ Buck output load current up to 25A
Specifications
▪ Number of layers: 4
▪ PCB copper weight: 2oz
▪ Board revision: C
VBUS
BOOT
UG
PHS
LG
VOUT
Page 1
© 2023 Renesas Electronics

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Summary of Contents for Intersil ISL71441MEV1Z

  • Page 1 Evaluation Board Manual ISL71441MEV1Z Features The ISL71441MEV1Z evaluation board evaluates the performance of the radiation tolerant ISL71441M ▪ 4.75V to 13.2V VDD power supply range half-bridge GaN FET driver in an open-loop Buck ▪ 300kHz to 1MHz PWM frequency range (external configuration.

  • Page 2: Table Of Contents

    ISL71441MEV1Z Evaluation Board Manual Contents Functional Description ..............3 Quick Start Instructions .

  • Page 3: Functional Description

    V_OUT below 5V. Changing Power Inductor The ISL71441MEV1Z is populated with a 0.22µH inductor on the L1 footprint targeted for 500kHz to 1MHz switching frequency. The inductor used is a Coilcraft XAL1010-022, which offers various inductor values in this XAL1010 family with the same footprint.

  • Page 4: Board Design

    ISL71441MEV1Z Evaluation Board Manual Board Design Figure 2. Evaluation Board (Top) Figure 3. Evaluation Board (Bottom) R34UZ0016EU0100 Rev.1.00 Page 4 Jul 3, 2023...

  • Page 5: Layout Guidelines

    ISL71441MEV1Z Evaluation Board Manual Layout Guidelines PCB design files are available on the website to study or incorporate into your design. ▪ Use a multi-layer PCB with 2-ounce (70µm) copper outer layers to maximize PCB current capacitor and thermal handling.

  • Page 6: Schematic Diagram

    ISL71441MEV1Z Evaluation Board Manual Schematic Diagram UNNAMED_3_SMCAP_I98_A UNNAMED_3_CONN2_I175_IN2 UNNAMED_3_ISL71441M_I169_16 UNNAMED_3_CONN2_I40_IN2 UNNAMED_3_CONN2_I39_IN2 UNNAMED_3_SMRES_I10_A UNNAMED_3_SMRES_I15_B UNNAMED_3_SMRES_I14_B UNNAMED_3_CONN2_I33_IN2 UNNAMED_3_SMRES_I6_B UNNAMED_3_NCHANNEL_I135_D UNNAMED_3_SMRES_I5_B Figure 4. ISL71441MEV1Z Board Schematics R34UZ0016EU0100 Rev.1.00 Page 6 Jul 3, 2023...

  • Page 7: Bill Of Materials

    ISL71441MEV1Z Evaluation Board Manual Bill of Materials Reference Designator Description Manufacturer Manufacturer Part PWB-PCB, ISL71441MEV1Z, REVC, Imagineering INC ISL71441MEV1ZREVCPCB ROHS CAP, SMD, 0805, 1.0µF, C4, C7 C2012X7R1E105K125AB 25V, 10%, X7R, ROHS C8, C9, C13, C15, C17, CAP, SMD, 1206, 4.7µF,...
  • Page 8 ISL71441MEV1Z Evaluation Board Manual Reference Designator Description Manufacturer Manufacturer Part LED, SMD, 3×2.5mm, 4P, RED/GREEN, 12/20MCD, LUMEX SSL-LXA3025IGC-TR IC-SAMPLE DIE, RAD Renesas Electronics Q1, Q2, Q3 HARD, 40V GAN FET, ISL70020SEHX/SAMPLE America ROHS IC-GAN FET DRIVER, Renesas Electronics HALF-BRIDGE, 20P, QFN,...

  • Page 9: Board Layout

    ISL71441MEV1Z Evaluation Board Manual Board Layout Figure 5. ISL71441MEV1Z Top Silkscreen Layer Figure 6. ISL71441MEV1Z Bottom Silkscreen Layer R34UZ0016EU0100 Rev.1.00 Page 9 Jul 3, 2023...
  • Page 10 ISL71441MEV1Z Evaluation Board Manual Figure 7. ISL71441MEV1Z Layer 1 Figure 8. ISL71441MEV1Z Layer 2 R34UZ0016EU0100 Rev.1.00 Page 10 Jul 3, 2023...
  • Page 11 ISL71441MEV1Z Evaluation Board Manual Figure 9. ISL71441MEV1Z Layer 3 Figure 10. ISL71441MEV1Z Layer 4 R34UZ0016EU0100 Rev.1.00 Page 11 Jul 3, 2023...

  • Page 12: Typical Performance Curves

    ISL71441MEV1Z Evaluation Board Manual Typical Performance Curves LG to UG Dead Time (ns) LG to UG Dead Time (ns) UG to LG Dead Time (ns) UG to LG Dead Time (ns) RDU = RDL Resistance (kΩ) RDU = RDL Resistance (kΩ) Figure 11.
  • Page 13 IMPORTANT NOTICE AND DISCLAIMER RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (“RENESAS”) PROVIDES TECHNICAL SPECIFICATIONS AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS.

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