3A per phase current for wider 2.5V ~ 5.5V supply voltage. The ISL91301A uses the Renesas proprietary R5 modulator technology to maintain accurate voltage regulation, while providing excellent efficiency and transient response. It also supports the standard I C and SPI communication protocols, ideal for systems using a single-cell battery.
= 2.5V to 5.5V, max current = 3A per phase ISL91301AII-H-EV1Z Evaluation board. VIN_SEL = AVIN, V = 2.8V to 5.5V, max current = 4A per phase Contents • ISL91301AII-L-EV1Z or ISL91301AII-H-EV1Z evaluation board • Evaluation software • Mini USB I C dongle with USB cable (ISLUSBMINIEVAL1Z) • Documentation Recommended Equipment •...
Table 3.5 on page Operating Range The V range of the board is 2.5V to 5.5V for the ISL91301AII-L-EV1Z with 3A per phase I range and 2.8V to 5.5V for the ISL91301AII-H-EV1Z with 4A per phase I range. The adjustable V range for both versions are from 0.3V to 2.0V.
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C communication by default. A USB to I C communication dongle CONFIDENTIAL (ISLUSBMINIEVAL1Z) is included with each ISL91301AII-L-EV1Z or ISL91301AII-H-EV1Z board, and the Renesas Graphical User Interface (GUI) supports this tool across all operating systems. To communicate with ISL91301A using I C, connect the USB to I C dongle to J42B.
(3) Turn on the electronic load at VOUTx. The connection should be made at J35 (VOUT1), J37 (VOUT2), or J57 (VOUT3). Make sure the load current does not exceed 3A per phase for the ISL91301AII-L-EV1Z and 4A per phase for the for the ISL91301AII-H-EV1Z. Use the correct wire size when attaching the electronic load.
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6, connect the power supplies, DC load, and other test equipment to the ISL91301AII-EV1Z evaluation board, then apply power. (4) Start the Multiphase PMIC Control Tool software. Select Start > Programs > Renesas -> Multiphase PMIC I2C Control Tool. (5) Select ISL91301 from the “Select Product” menu. Click “Connect” button ton the GUI to establish a connection between the GUI and the dongle.
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ISL91301AII-L-EV1Z, ISL91301AII-H-EV1Z 2. Functional Description (8) To change the output voltage, enter the desired value in voltages in the DVS0 control. There are also four default DVS values that are loaded as part of ISL91301A one-time programmable memory space. The user can go to any of them and activate a DVS command by clicking on the DVS Pointer.
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ISL91301AII-L-EV1Z, ISL91301AII-H-EV1Z 2. Functional Description Green check mark indicates a good connection to the I2C Dongle Enable/Disable for each Buck Four active DVS per Buck with pointer selection Fault monitoring and latched states CONFIDENTIAL Red indicates an over-temperature fault Figure 9. Multiphase PMIC (ISL91301A) I C Control Tool Interface UG143 Rev.0.00...
3. PCB Layout Guidelines PCB Layout Guidelines The ISL91301AII-L-EV1Z and ISL91301AII-H-EV1Z boards are a 6-layer FR4 board. The main components are the ISL91301A, its passive filter components, test points, and connectors. A 220nH inductor is located close to each phase node of the ISL91301A, and 3x22µF plus 4x4.3µF capacitors are populated at the output of each inductor.
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5V_SPI R213 VCC_6V VOUT VOUT ENABLE 22UF 2.61k 10UF 82pF ISL80101-ADJ 1000pF CONFIDENTIAL Ouput sense resistors for each rail. R100 BUCK3VOUT BUCK2VOUT B3SENSE BUCK1VOUT B1SENSE B2SENSE OPEN OPEN OPEN OPEN OPEN OPEN B1RTN B3RTN B2RTN OPEN OPEN OPEN OPEN OPEN OPEN Figure 18.
ISL91301AII-L-EV1Z, ISL91301AII-H-EV1Z 5. Revision History Revision History Rev. Date Description 0.00 Apr 6, 2018 Initial release CONFIDENTIAL UG143 Rev.0.00 Page 26 of 28 Apr 6, 2018...
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10. It is the responsibility of the buyer or distributor of Renesas Electronics products, or any other party who distributes, disposes of, or otherwise sells or transfers the product to a third party, to notify such third party in advance of the contents and conditions set forth in this document.
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