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Summary of Contents for Renesas intersil ISL95338EVAL1Z
- Page 1 ISL95338EVAL1Z User’s Manual: Evaluation Board Battery and Optical Rev 0.00 Aug 2017...
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Page 2: Key Features
USER’S MANUAL ISL95338EVAL1Z UG128 Evalulation Board Rev.0.00 Aug 17, 2017 Overview ISL95338 is a bidirectional buck-boost voltage regulator, which provides bidirectional buck-boost voltage regulation and protection features. Intersil’s advanced R3™ Technology is used to provide high light-load efficiency, fast transient response, and seamless DCM/CCM transitions. The ISL95338 takes input power from a wide range of DC power sources (conventional AC/DC ADPs, USB PD ports, travel ADPs, etc.) and safely converts it to a regulated voltage up to 24V. -
Page 3: Related Literature
ISL95338EVAL1Z 1. Overview Related Literature • For a full list of related documents, visit our website • ISL95338 product page (ADAPTER SIDE) VSYS (SYSTEM SIDE) CSOP CSIN CSON CSIP ADPS FRWEN VOUT ISL95338 RVSEN VOUTS ADDR0 PROCHOT# ADDR1 RVSPG FRWPG 3.3V FRWPG RVSPG... -
Page 4: Functional Description
ISL95338EVAL1Z 2. Functional Description Functional Description The ISL95338EVAL1Z provides all circuits required to evaluate the features of the ISL95338. A majority of the features, such as adjustable output voltage in Forward mode and Reverse mode, programmable REF, fast VDAC changing at no load condition, at Buck, Boost and Buck-Boost modes, are available on this evaluation board. Figure 2. - Page 5 ISL95338EVAL1Z 2. Functional Description 2.1.1 Enabling Forward Mode in Buck Mode (1) Set the 20V supply to 12V and, with SW1 in the low position, connect the (+) source to the ADP positive terminal and the (-) source to the ADP negative terminal. (2) Ensure that jumpers JP4, JP6, and JP7 are shorted.
- Page 6 ISL95338EVAL1Z 2. Functional Description 2.1.2 Enabling Reverse Mode in Buck Mode (1) Set the 20V supply to 12V and, with SW1 in the low position, connect the (+) source to the system positive terminal and the (-) source to the system negative terminal. (2) Ensure that jumpers JP4, JP6, and JP7 are shorted.
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Page 7: Pcb Layout Guidelines
ISL95338EVAL1Z 3. PCB Layout Guidelines PCB Layout Guidelines Figure 4. Evaluation Board Top View Figure 5. Evaluation Board Bottom View UG128 Rev.0.00 Page 7 of 21 Aug 17, 2017... -
Page 8: Layout Guidelines
ISL95338EVAL1Z 3. PCB Layout Guidelines Layout Guidelines Pin # Pin Name Layout Guidelines BOTTOM Connect this ground pad to the ground plane through low impedance path. We recommend using at least PAD 33 five vias to connect to ground planes in the PCB to ensure there is sufficient thermal dissipation directly under the IC. - Page 9 ISL95338EVAL1Z 3. PCB Layout Guidelines Pin # Pin Name Layout Guidelines BOOT1 Switching pin. Place the bootstrap capacitor in general proximity of the controller. Use decent wide trace. Avoid any sensitive analog signal trace from crossing over or getting close. ADPS Signal pin.
- Page 10 ISL95338EVAL1Z Schematic All NFETs and PFETs are 3x3 size save for popcap save for popcap SDA, SCL, FRWPG, RVSPG, FRWEN, RVSEN all have 3V3 or VDD pull up options CONNECTOR Figure 6. ISL95338EVAL1Z Evaluation Board Schematic...
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Page 11: Bill Of Materials
ISL95338EVAL1Z 3. PCB Layout Guidelines Bill of Materials Reference Designator Manufacturer Part Number Description SEE LABEL- IMAGINEERING ISL95338EVAL1ZREVBPCB PWB-PCB, ISL95338EVAL1Z, REVB, ROHS RENAME BOARD C19, C111, C112, Kemet 399-3797-2-ND CAP-POSCAP, SMD, 7.3x4.3x1.9, 47µF, 25V, 20%, C113, C114 55mΩ, ROHS C45, C82 VENKEL H1045-00102-16V10-T CAP, SMD, 0603, 1000pF, 16V, 10%, X7R, ROHS... - Page 12 ISL95338EVAL1Z 3. PCB Layout Guidelines Reference Designator Manufacturer Part Number Description Q1, Q2, Q3, Q4 VISHAY SISA14DN-T1-GE3-T TRANSISTOR-MOS, N-CHANNEL, 8P, PWRPAK, 30V, 20A, ROHS R1, R2, R7, R10, YAGEO H2511-00020-1/10W1-T RES, SMD, 0603, 2Ω, 1/10W, 1%, TF, ROHS VENKEL H2511-004R7-1/10W1-T RES, SMD, 0603, 4.7Ω, 1/10W, 1%, TF, ROHS R4, R6, R11, R12, VENKEL...
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Page 13: Board Layout
ISL95338EVAL1Z 3. PCB Layout Guidelines Board Layout Figure 7. Top Layer UG128 Rev.0.00 Page 13 of 21 Aug 17, 2017... - Page 14 ISL95338EVAL1Z 3. PCB Layout Guidelines Figure 8. Inner Layer 1 UG128 Rev.0.00 Page 14 of 21 Aug 17, 2017...
- Page 15 ISL95338EVAL1Z 3. PCB Layout Guidelines Figure 9. Inner Layer 2 UG128 Rev.0.00 Page 15 of 21 Aug 17, 2017...
- Page 16 ISL95338EVAL1Z 3. PCB Layout Guidelines Figure 10. Bottom Layer UG128 Rev.0.00 Page 16 of 21 Aug 17, 2017...
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Page 17: Typical Performance Curves
ISL95338EVAL1Z 4. Typical Performance Curves Typical Performance Curves Figure 11. Forward Mode Soft-Start, 12V , 20V Figure 12. Reverse Mode, Soft-Start, 12V , 5V Figure 13. V Voltage Ramps Up in Forward Figure 14. ADP Voltage Ramps Up in Reverse Mode, Buck ->... - Page 18 ISL95338EVAL1Z 4. Typical Performance Curves Figure 17. Forward Mode, 5V to 20V Figure 18. Forward Mode, 20V to 5V Figure 19. Forward Mode, Output Voltage Loop to Figure 20. Forward Mode, Output Voltage Loop to ADP Current Loop Transition. 5V , 12V Adapter Voltage Loop Transition.
- Page 19 ISL95338EVAL1Z 4. Typical Performance Curves Figure 23. Forward Mode, 5V , 12V , 0-2A Figure 24. Reverse Mode, 20V , 12V , 0-2A Transient Load Transient Load UG128 Rev.0.00 Page 19 of 21 Aug 17, 2017...
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Page 20: Revision History
ISL95338EVAL1Z 5. Revision History Revision History Rev. Date Description 0.00 Aug 17, 2017 Initial release © Copyright Intersil Americas LLC 2017. All Rights Reserved. All trademarks and registered trademarks are the property of their respective owners. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that the document is current before proceeding. - Page 21 ISL95338EVAL1Z UG128...
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