Renesas ISL9241EVAL1Z User Manual
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Renesas ISL9241EVAL1Z User Manual

Battery and optical
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ISL9241EVAL1Z
Battery and Optical
All information contained in these materials, including products and product specifications,
represents information on the product at the time of publication and is subject to change by
Renesas Electronics Corp. without notice. Please review the latest information published by
Renesas Electronics Corp. through various means, including the Renesas Electronics Corp.
website (http://www.renesas.com).
Renesas Electronics Corporation
www.renesas.com
User's Manual: Evaluation Board
Rev.3.00
Aug.26.19

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Summary of Contents for Renesas ISL9241EVAL1Z

  • Page 1 All information contained in these materials, including products and product specifications, represents information on the product at the time of publication and is subject to change by Renesas Electronics Corp. without notice. Please review the latest information published by Renesas Electronics Corp. through various means, including the Renesas Electronics Corp.

  • Page 2: Specifications

    The ISL9241EVAL1Z evaluation board is designed to demonstrate the performance of the ISL9241. From the PROG pin to GND, the resistor can be used to program the default value numbers of the battery in series, the switching frequency, and the adapter current limit charging function.

  • Page 3: Recommended Equipment

    OTGEN/CMIN PSYS BATGONE/NTC PSYS Figure 1. ISL9241EVAL1Z Block Diagram Recommended Equipment • 0V to 25V power supply with at least 6A source current capability • Electronic load capable of sinking current up to 6A • Battery emulator capable of sinking and sourcing current up to 6A •...

  • Page 4: Required Hardware

    Graphical User Interface (GUI). The GUI facilitates access to the ISL9241 SMBus registers. This section describes how to install, start, and use the GUI. Required Hardware • ISL9241EVAL1Z evaluation board • USB 2.0 A/B cable Required Software The software Installation Wizard package includes all three required components: •...

  • Page 5: Installing The Usb Driver

    ISL9241EVAL1Z 1. Installing the ISL9241 Software 3. Click Install ISL9241 SMBus Control Tool. a. The window shown in Figure 3 appears. Click Next. Figure 3. ISL9241 Control Software Installer 4. Follow the instructions to accept the two End User License Agreements to complete the software installation.
  • Page 6 ISL9241EVAL1Z 1. Installing the ISL9241 Software 3. The message in Figure 5 appears when the driver is successfully installed. Figure 5. ISL9241 Successful Driver Installation 4. If the installation fails the Digital Signature required in Windows 10 or security settings, complete the following steps to bypass it.

  • Page 7: Using The Gui

    2. Check the USB cable connections from the ISL9241EVAL1Z to the USB port of the computer. 3. Try different sequences: plug in the ISL9241EVAL1Z first or start the GUI first. If the problem continues, the USB driver may not be properly installed; therefore, the ISL9241EVAL1Z is not recognized. See “Installing the USB Driver”...

  • Page 8: Functional Description

    The ISL9241EVAL1Z evaluation board provides all circuits required to evaluate the features of the ISL9241. A majority of the features of the ISL9241 are available on the ISL9241EVAL1Z, such as adjustable output voltage, On-the-Go (OTG) mode, Trickle Charging mode for a depleted battery, and system power monitor at Buck, Boost, and Buck-Boost modes.
  • Page 9 LED 1 LED 2 LED 3 BGATE Figure 7. ISL9241EVAL1Z Connections Regulating System Voltage 1. Set the power supply to 5V. With the output disabled, connect the (+) end to J and the (-) end to J 2. Ensure jumpers JP...
  • Page 10 3. Connect the USB cable at the USB port for the SMBus. LED1, 2, and 3 all turn on. 4. Turn on the power supply; LED3 goes out. Turn on the battery emulator and open the Renesas ISL9241 GUI (Figure Figure 8.
  • Page 11 Note: Make sure the input current does not reach the input current limit value, especially for a small V input. Configuring the ISL9241EVAL1Z for Trickle Charging Mode 1. Complete steps 1 through 5 in Configuring the ISL9142EVAL1Z for Charging Mode without any changes.
  • Page 12 8. Increase the electrical load slowly and monitor the load voltage. If the load current is less than the OTGCurrent limit value, the load voltage is regulated at the setting value. Configuring the ISL9241EVAL1Z for Bypass Mode AN1994 for information about how to transition between different NVDC and Bypass modes. The document also provides steps on how to enable charging in each mode and how to allow the battery to supplement the adapter in Bypass mode (reverse turbo boost).

  • Page 13: Pcb Layout Guidelines

    This section provides real examples of PCB layouts. The guidance is specific to board implementation, indicates key techniques used, and highlights areas that affect both functionality and performance. ISL9241EVAL1Z Evaluation Board Figure 11. ISL9241EVAL1Z Evaluation Board (Top) UG184 Rev.3.00 Page 13 of 28...
  • Page 14 ISL9241EVAL1Z 4. PCB Layout Guidelines Figure 12. ISL9241EVAL1Z Evaluation Board (Bottom) UG184 Rev.3.00 Page 14 of 28 Aug.26.19...
  • Page 15 ISL9241EVAL1Z Schematic Optional - Additional short circuit protection FOR ISL9238, POPULATE COMPONENTS IN ORANGE FOR ISL9241, POPULATE COMPONENTS IN GREEN All NFETs and PFETs are 3x3 size When Bypass FETs are not populated, do not leave BYPSRC floating Connect it with 0 ohm resistor to VDD...

  • Page 16: Bill Of Materials

    4. PCB Layout Guidelines Bill of Materials Reference Designator Description Manufacturer Manufacturer Part Number ISL9241EVAL1Z REVD PWB-PCB, ISL9241EVAL1Z, Imagineering ISL9241EVAL1Z REVC PCB REVD, ROHS IC-NOTEBOOK BATTERY Renesas ISL9241HRZ CHARGER, 32P, QFN, 4x4, ROHS CAP, SMD, 0603, 10pF, 50V, 10%, Kemet...
  • Page 17 ISL9241EVAL1Z 4. PCB Layout Guidelines Reference Designator Description Manufacturer Manufacturer Part Number JP3, JP4, JP6-Pins 1-2 CONN-JUMPER, SHORTING, Sullins SPC02SYAN 2PIN, BLACK, GOLD, ROHS DIODE-RECTIFIER, SMD, Diodes Incorporated BAT54C-7-F SOT23, 30V, 200mA, DUAL DIODE, ROHS LED1, LED2, LED3 LED, SMD, 1206, GREEN, 75mW,...
  • Page 18 Layout Guidelines Bottom Connect this ground pad to the ground plane through a low impedance path. Renesas recommends using at least five vias to connect to ground planes in the PCB to ensure sufficient thermal dissipation directly under the CSON Run two dedicated traces with sufficient width in parallel (close to each other to minimize the loop area) from the two terminals of the battery current-sensing resistor to the IC.
  • Page 19 UGATE2 Run these two traces in parallel with sufficient width. Do not allow any sensitive analog signal traces to cross over or get close. Renesas recommends routing the PHASE2 trace to the high-side MOSFET source pin instead of PHASE2 general copper.

  • Page 20: Board Layout

    ISL9241EVAL1Z 4. PCB Layout Guidelines Table 1. Guidelines for PCB Layout (Continued) Pin # Pin Name Layout Guidelines Digital pins. No special consideration. Run the SDA and SCL traces in parallel. PROCHOT# Digital pin, open-drain output. No special consideration. ACOK Digital pin, open-drain output.
  • Page 21 ISL9241EVAL1Z 4. PCB Layout Guidelines Figure 15. Inner Layer 1 Figure 16. Inner Layer 2 UG184 Rev.3.00 Page 21 of 28 Aug.26.19...
  • Page 22 ISL9241EVAL1Z 4. PCB Layout Guidelines Figure 17. Bottom Layer (Mirror Image) UG184 Rev.3.00 Page 22 of 28 Aug.26.19...

  • Page 23: Typical Performance Curves

    ISL9241EVAL1Z 5. Typical Performance Curves Typical Performance Curves Figure 18. Boost Mode, output voltage loop to adapter Figure 19. Boost Mode, charge current loop to adapter current loop transition, V = 5V, V = 11V, current loop transition, V = 5V, V = 11V, MaxsystemVoltage = 12.576V,...
  • Page 24 ISL9241EVAL1Z 5. Typical Performance Curves Figure 22. Buck Mode, output voltage loop to adapter Figure 23. Buck Mode, charge current loop to adapter current loop transition, V = 20V, V = 11V, current loop transition, V = 20V, V = 11V, MaxsystemVoltage = 12.576V,...
  • Page 25 ISL9241EVAL1Z 5. Typical Performance Curves Figure 26. OTG mode enable using OTGEN pin. Figure 27. OTG mode transient. V = 11V,V = 5V, = 11V, V = 5V, general purpose comparator load = 0.5A to 2A disabled, OTGEN Control bit enabled Figure 28.

  • Page 26: Revision History

    ISL9241EVAL1Z 6. Revision History Revision History Rev. Date Description 3.00 Aug.26.19 Applied new formatting. Updated links throughout. Updated schematic. Updated BOM. 2.00 Oct.22.18 Updated schematic. 1.00 Oct.11.18 Added schematic on page 17. Added Bill of Materials starting on page 18.

  • Page 27: Corporate Headquarters

    Koto-ku, Tokyo 135-0061, Japan version of a document, or your nearest sales office, please visit: www.renesas.com www.renesas.com/contact/ Trademarks Renesas and the Renesas logo are trademarks of Renesas Electronics Corporation. All trademarks and registered trademarks are the property of their respective owners.
  • Page 28 ISL9241EVAL1Z Renesas Electronics Corporation www.renesas.com UG184...

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