Renesas ISL68300EVAL3Z User manual
Rev 0.00 Jul 2018
User’s Manual
ISL68300EVAL3Z
User’s Manual: Evaluation Board
Core Power Solutions
UG173 Rev.0.00 Page 2 of 22
Jul 12, 2018
UG173
Rev.0.00
Jul 12, 2018
ISL68300EVAL3Z
Evaluation Board
USER’S MANUAL
1. Overview
The ISL68300 is a PMBus compliant, single-phase digital DC/DC controller with integrated gate drivers for use with
N-channel MOSFETs. The ISL68300 implements the Renesas fully digital ChargeMode™ control modulation scheme,
allowing both ease of use and industry leading performance. ChargeMode control provides an inherently stable control
loop that can respond to load transients in a single switching cycle, significantly decreasing output capacitor requirements.
A dedicated current share bus allows for paralleling up to eight devices in a current share configuration, allowing
support for a wide range of load currents.
The ISL68300EVAL3Z evaluation board is a 2.7inx3.0in 6-layer FR4 board with 2oz. copper on all layers. This
evaluation board comes with a placeholder for pin-strap resistors to adjust output voltage, switching frequency, and the
device PMBus address. More configurations, such as soft-start and fault limits, can be easily programmed or changed
using a PMBus compliant serial bus interface.
This evaluation board includes the ZLUSBEVAL3Z (USB to PMBus adapter), which connects the evaluation board to
a PC to activate the PMBus communication interface. The PMBus command set is accessed by using the
PowerNavigator™ evaluation software from a PC running Microsoft Windows.
1.1 Key Features
•V
IN range of 4.5V to 16V, VOUT adjustable from 0.5V to 2.5V
• Programmable VOUT, margining, UV/OV, IOUT limit, soft-start/stop, sequencing, and external synchronization
• Monitor: VIN, VOUT, IOUT, temperature, duty cycle, switching frequency, and faults
• ChargeMode control tunable with PMBus
• On-board load step circuit
• Mechanical switch for enable and power-good LED indicator
1.2 Specifications
This board highlights the current-sharing feature of the ISL68300 in the 2-phase configuration. It is configured for
the following operating conditions by default:
•V
IN = 7V to 16V
•V
OUT = 1.0V
•I
MAX = 60A
•f
SW = 400kHz
• Peak efficiency: >89% at 50% load
• On/off delay = 5ms, on/off ramp time = 5ms
1.3 Ordering Information
1.4 Related Literature
For a full list of related documents, visit our website
•ISL68300 product page
Part Number Description
ISL68300EVAL3Z ISL68300 evaluation board (EVB, ZLUSBEVAL3Z adapter, USB cable)
UG173 Rev.0.00 Page 3 of 22
Jul 12, 2018
ISL68300EVAL3Z 1. Overview
1.5 Recommended Equipment
• DC power supply with minimum 15V/25A sourcing capacity
• Electronic load capable of sinking current up to 80A
• Digital Multimeters (DMMs)
• Oscilloscope with higher than 100MHz bandwidth
Figure 1. ISL68300EVAL3Z Block Diagram
VOUT
GH
GL
ISL68300
VDD
PGND
BOOT
ISENP
ISENN
VIN
VSENP
VSENN
SGND
SW
VG
TEMP/
TRK
VSET/SA
V5
V1P5
GH
GL
ISL68300
VDD
PGND
BOOT
ISENP
ISENN
VIN
VSENP
VSENN
SGND
SW
VG
TEMP/
TRK
V5
SDA
SCL
PG
DDC
SALRT
EN
ISHARE
SYNC
SDA
SCL
PG
DDC
PMBus
SALRT
EN
ISHARE
SYNC
VSET/SA
V1P5
UG173 Rev.0.00 Page 4 of 22
Jul 12, 2018
ISL68300EVAL3Z 2. Functional Description
2. Functional Description
The ISL68300EVAL3Z provides all circuitry required to evaluate the features of the ISL68300. A majority of the
features of the ISL68300, such as compensation-free ChargeMode control, soft-start delay and ramp times, supply
sequencing, and voltage margining are available on this evaluation board. For sequencing evaluation, the board can be
connected to any Renesas digital module evaluation board that supports the Digital-DC™ (DDC) bus.
Figures 2 and 3 on page 6 show the ISL68300EVAL3Z evaluation board.
2.1 Operating Range
By default, the ISL68300EVAL3Z is configured to operate at VOUT = 1.0V, fSW = 400kHz. VIN ranges from 7V to
16V. The board can also support a wider operating range to meet the requirements of specific applications. The
VOUT can be adjusted from 0.5V to 2.5V, the load current range is from 0A to 60A, and the switching frequency
can also be tuned.
If using external synchronization, connect the SYNC test point to the external clock. Note that the external clock
signal should be valid before the ISL68300s are enabled.
2.2 PMBus Operation
The ISL68300 uses the PMBus protocol. The PMBus functionality can be controlled using the ZLUSBEVAL3Z
dongle from a PC running the PowerNavigator evaluation software.
Install PowerNavigator from the Renesas website.
For board operation, connect the included ZLUSBEVAL3Z dongle to the 6 pin male connector, J3, labeled
“DONGLE”. Connect the desired load and an appropriate power supply to the input and connect the included USB
cable to the PC running PowerNavigator. Set the ENABLE switch, SW3, to “OFF” before turning on the power.
PowerNavigator allows modification of all ISL68300 PMBus parameters. The user can modify the operating
parameters through the evaluation software or by loading a predefined set-up from a configuration file.
The ENABLE switch, SW3, can then be moved to “ON” and the ISL68300EVAL3Z board can be tested.
Alternately, the PMBus ON_OFF_CONFIG and OPERATION commands can be used from PowerNavigator.
UG173 Rev.0.00 Page 5 of 22
Jul 12, 2018
ISL68300EVAL3Z 2. Functional Description
2.3 Quick Start Guide
2.3.1 PMBus Option
The ISL68300EVAL3Z can be evaluated for all features using the provided ZLUSBEVAL3Z dongle and
PowerNavigator. Complete the following steps to evaluate the ISL68300 with the PMBus option.
(1) Install PowerNavigator.
(2) Set the ENABLE switch to “OFF”.
(3) Connect the load to the VOUT lug connectors.
(4) Connect the power supply to the VIN connectors. Make sure the power supply is not enabled when making
the connection.
(5) Turn the power supply on.
(6) Connect the ZLUSBEVAL3Z dongle (USB to PMBus adapter) to the ISL68300EVAL3Z board to the
6-pin male connector, J3, labeled “DONGLE”.
(7) Connect the supplied USB cable from the computer through the USB to the ZLUSBEVAL3Z dongle.
(8) Launch PowerNavigator.
(9) Set the ENABLE switch to “ON”.
(10) Monitor and configure the ISL68300EVAL3Z board using the PMBus commands in the evaluation
software.
PowerNavigator tutorial videos are available on the Renesas website.
To sequence using the Digital-DC Bus (DDC), or to evaluate multiple Renesas digital power products using a
single ZLUSBEVAL3Z dongle, the ISL68300 can be daisy chained with other digital power evaluation boards.
The PMBus address can be changed by placing 1% standard 0402 resistors at R3, R5, R8, and R10. Refer to the
“Output Voltage and SMBus Address Selection” table in the ISL68300 datasheet for recommended values.
UG173 Rev.0.00 Page 6 of 22
Jul 12, 2018
ISL68300EVAL3Z 3. PCB Layout Guidelines
3. PCB Layout Guidelines
Figure 2. ISL68300EVAL3Z Evaluation Board (Top Side)
Figure 3. ISL68300EVAL3Z Evaluation Board (Bottom Side)
PGOOD LED
Enable Switch
Interconnects DDC and
Sync Between Boards
Connect to ZLUSBEVAL3Z
Dongle. For Multiple Board
Evaluation, Connect to
PMBus Dongle Out
Connection of Other Board
Interconnects DDC and
Sync Between Boards
To Daisy Chain PMBus
Connection
UG173 Rev.0.00 Page 7 of 22
Jul 12, 2018
ISL68300EVAL3Z 3. PCB Layout Guidelines
3.1 ISL68300EVAL3Z Board Schematic
Figure 4. Schematic
Address=0x62
Vout= 1V
Fsw = 400kHz
IOC = Set by Firmware
ASCR = Set by Firmware
Address=0x63
Vout= 1V
Fsw = 400kHz
IOC = Set by Firmware
ASCR = Set by Firmware
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UG173 Rev.0.00 Page 8 of 22
Jul 12, 2018
ISL68300EVAL3Z 3. PCB Layout Guidelines
Figure 5. Schematic - Input and Output Filters
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UG173 Rev.0.00 Page 9 of 22
Jul 12, 2018
ISL68300EVAL3Z 3. PCB Layout Guidelines
Figure 6. Schematic - I2C, Enable, PG
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UG173 Rev.0.00 Page 10 of 22
Jul 12, 2018
ISL68300EVAL3Z 3. PCB Layout Guidelines
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UG173 Rev.0.00 Page 11 of 22
Jul 12, 2018
ISL68300EVAL3Z 3. PCB Layout Guidelines
3.2 Bill of Materials
Qty
Reference
Designator Description Manufacturer Manufacturer Part
4 C1, C2, C12,
C13
CAP, SMD, 0805, 10µF, 16V, 10%, X6S, ROHS TDK C2012X6S1C106K085AC
4 C30, C34,
C52, C53
CAP, SMD, 1206, 150µF, 6.3V, 20%, X5R, ROHS Murata GRM31CR60J157ME11L
2 C8, C19 CAP, SMD, 0402, 1000pF, 50V, 5%, C0G, ROHS Venkel C0402C0G500-102JNE
7 C39, C40,
C41, C42,
C44, C48,
C49
CAP, SMD, 0402, 0.1µF, 16V, 10%, X7R, ROHS Murata GRM155R71C104JA88D
5 C4, C16, C23,
C31, C38
CAP, SMD, 0402, 1.0µF, 16V, 10%, X5R, ROHS TDK C1005X5R1C105K050BC
2 C9, C20 CAP, SMD, 0402, 100pF, 50V, 5%, NP0, ROHS AVX 04023A101FAT2A
2 C6, C17 CAP, SMD, 0402, 0.22µF, 10V, 10%, X5R, ROHS Venkel C0402X5R100-224KNE
1 C46 CAP, SMD, 0402, 27pF, 50V, 5%, NP0, ROHS Murata GRM36COG270J050AQ
6 C5, C10, C11,
C15, C21,
C22
CAP, SMD, 0402, 4.7µF, 10V, 10%, X5R, ROHS TDK C1005X5R1A475K050BC
6 C35, C36,
C37, C54,
C55, C56
CAP, SMD, 0805, 47µF, 6.3V, 20%, X5R, ROHS Kemet C0805C476M9PACTU
6 C3, C14, C26,
C27, C57,
C58
CAP, SMD, 1206, 22µF, 25V, 10%, X5R, ROHS Murata GRM31CR61E226KE15L
2 C7, C18 CAP, SMD, 0402, 0.47µF, 6.3V, 10%, X7R, ROHS Taiyo Yuden JMK105B7474KVHF
2 C24, C25 CAP, SMD, 8x12, 180µF, 16V, 20%, 16mΩ, ALUM.ELEC.,
ROHS
Nippon Chemi-Con APXA160ARA181MJC0G
4 C28, C32,
C50, C51
CAP, SMD, D, 470µF, 2.5V, 20%, 3mΩ, POLY.AL.EL., ROHS Panasonic EEF-GX0E471L
2 L1, L2 COIL-PWR INDUCTOR, SMD, 10.7x7, 200nH, 10%, 61A,
18mΩ, ROHS
Eaton/Bussmann FP1110V2-R200-R
1 D1 LED, SMD, 0805, GREEN/CLEAR, 2.2V, 20mA, 574nm,
45mcd, ROHS
Lumex SML-LX0805SUGC-TR
2 U1, U3 IC-DIGITAL DC/DC CONTROLLER, 24P, QFN, ROHS Renesas ISL68300IRAZ
2 U2, U4 TRANSISTOR-MOS, DUAL N-CHNL, 8P, WDFN, 25V, 20A/35A,
ROHS
On Semiconductor FDPC8016S
1 U8 IC-OP AMP, R/R, SMD, 6P, TSOT23, 325MHz, 85mA, ROHS Linear Technology LT1806IS6#TRMPBF
1 U5 IC-NON-INVERTING BUFFER, SMD, 5P, TSOT23-5, ROHS On Semiconductor MC74VHC1G07DTT1G
1 U7 IC-INVERTER, SCHMITT TRIGGER, SMD, 5P, SC-70-5, ROHS On Semiconductor MC74VHC1G14DFT1G
1 U6 IC-TIMER/OSCILLATOR, 2.1MHz, SMD, 8P, SOIC, ROHS Texas Instruments TLC555CDR
2 Q1, Q2 TRANSISTOR-NPN, SMD, SOT-416, 200mA, 40V, 300mW,
ROHS
On Semiconductor MMBT3904TT1G
1 Q3 TRANSISTOR, N-CHANNEL, 3LD, SOT-23, 60V, 115mA, ROHS Diodes, Inc. 2N7002-7-F
2 Q4, Q5 TRANSIST-MOS, N-CHANNEL, 30V, 57A, SMD, 8P,
PG-TDSON-8, ROHS
Infineon
Technology
BSC052N03LS
4 R36, R37,
R38, R39
RES-AEC-Q200, CURR.SENSE, SMD, 2512, 0.02Ω, 3W, 1%,
TF, ROHS
Bourns CRA2512-FZ-R020ELF
UG173 Rev.0.00 Page 12 of 22
Jul 12, 2018
ISL68300EVAL3Z 3. PCB Layout Guidelines
2 R2, R7 RES, SMD, 0402, 2.2Ω, 1/16W, 1%, TF, ROHS Yageo RC0402FR-072R2L
2 R30, R31 RES, SMD, 0402, 4.3Ω, 1/16W, 5%, TF, ROHS Vishay/Dale CRCW04024R30FKED
1 R13 RES, SMD, 0402, 0Ω, 1/16W, 5%, TF, ROHS Venkel CR0402-16W-00T
1 R34 RES, SMD, 0402, 100Ω, 1/16W, 1%, TF, ROHS Venkel CR0402-16W-1000FT
3 R21, R22,
R24
RES, SMD, 0402, 10k, 1/16W, 1%, TF, ROHS Panasonic ERJ-2RKF1002X
3 R28, R35,
R40
RES, SMD, 0402, 100k, 1/16W, 1%, TF, ROHS Panasonic ERJ2RKF1003
1 R29 RES, SMD, 0402, 2k, 1/16W, 1%, TF, ROHS Panasonic ERJ-2RKF2001
1 R33 RES, SMD, 0402, 249Ω, 1/16W, 1%, TF, ROHS Panasonic ERJ-2RKF2490
1 R10 RES, SMD, 0402, 31.6kΩ, 1/16W, 5%, TF, ROHS Venkel CR0402-16W-3162FT
1 R32 RES, SMD, 0402, 3.32k, 1/16W, 1%, TF, ROHS Yageo RC0402FR-073K32L
1 R27 RES, SMD, 0402, 36k, 1/16W, 1%, TF, ROHS Yageo RC0402FR-0736KL
1 R3 RES, SMD, 0402, 41.2k, 1/16W, 5%, TF, ROHS Vishay/Dale CRCW040241K2FKED
1 R5 RES, SMD, 0402, 22.1k, 1/16W, 1%, TF, ROHS Panasonic ERJ-2RKF2212V
2 R20, R23 RES, SMD, 0402, 49.9Ω, 1/16W, 1%, TF, ROHS Panasonic ERJ-2RKF49R9X
1 R8 RES, SMD, 0402, 59k, 1/16W, 1%, TF, ROHS Panasonic ERJ-2RKF5902
4 R16, R17,
R18, R19
RES, SMD, 0402, 6.8k, 1/16W, 1%, TF, ROHS Panasonic ERJ-2RKF6801X
1 R3 RES, SMD, 0402, 8.25k, 1/16W, 1%, TF, ROHS Panasonic ERJ-2RKF8251
1 R26 RES, SMD, 0603, 10Ω, 1/10W, 1%, TF, ROHS KOA RK73H1JT10R0F
1 R15 RES, SMD, 0603, 100Ω, 1/10W, 1%, TF, ROHS Venkel CR0603-10W-1000FT
1 R25 RES, SMD, 0603, 10kΩ, 1/10W, 1%, TF, ROHS Venkel CR0603-10W-1002FT
2 R1, R6 RES, SMD, 0603, 3.01k, 1/10W, 1%, TF, ROHS Rohm MCR03EZPFX3011
1 SW3 SWITCH-TOGGLE, SPDT, TH, 5P, 28V, 0.4VA, ON-ON, ROHS NKK G12AP
1 SW4 SWITCH-SLIDE, SMD, 7.06mm, 2POS, SPST, 25mA, 24V,
ROHS
C&K Components SDA02H1SBD
2GND3,
VOUT3
HARDWARE, 65A PCB WIRE LUG, TH/SMD, 8.5x3.5,
6-14AWG, ROHS
International
Hydraulics Inc
B6A-PCB-SS
2 VIN1, GND1 CONN-JACK, BANANA-SS-SDRLESS, VERTICAL,
0.53Length, ROHS
Johnson
Components
108-0740-001
1 GND_O1 CONN-DBL TURRET, TH, 0.218x0.078 PCB MNT, TIN/BRASS,
ROHS
Keystone 1502-1
1 SGP1 CONN-MINI TEST PT, VERTICAL, RED, ROHS Keystone 5000
1 SGN1 CONN-MINI TEST PT, VERTICAL, BLK, ROHS Keystone 5001
2 J1, J7 CONN-HEADER, 1x2, RETENTIVE, 2.54mm, 0.230x0.120,
ROHS
Berg/fci 69190-202HLF
1 J2 CONN-HEADER, 1x3, BRKAWY 1x36, 2.54mm, TAIL
LENGTH.145"
3M 929647-09-36-I-1X3
2 J4, J6 CONN-SOCKET STRIP, TH, 2x3, 2.54mm, TIN, R/A, ROHS Samtec SSQ-103-02-T-D-RA
2 J3, J5 CONN-HEADER, 2x3, BRKAWY, 2.54mm, TIN, R/A, ROHS Samtec TSW-103-08-T-D-RA
4 ZSC1, ZSC2,
ZSC3, ZSC4
SCREW, 4-40x1/4in, PHILLIPS, PANHEAD, STAINLESS,
ROHS
Building Fasteners PMSSS 440 0025 PH
4 ZSO1, ZSO2,
ZSO3, ZSO4
STANDOFF, 4-40x3/4in, F/F, HEX, ALUMINUM, 0.25 OD,
ROHS
Keystone 2204
Qty
Reference
Designator Description Manufacturer Manufacturer Part
UG173 Rev.0.00 Page 13 of 22
Jul 12, 2018
ISL68300EVAL3Z 3. PCB Layout Guidelines
3.3 ISL68300EVAL3Z Board Layout
0 C43, C45,
C47, C59,
C60
DO NOT POPULATE
Figure 8. PCB - Top Silk Screen
Figure 9. PCB - Top Layer
Qty
Reference
Designator Description Manufacturer Manufacturer Part
UG173 Rev.0.00 Page 14 of 22
Jul 12, 2018
ISL68300EVAL3Z 3. PCB Layout Guidelines
Figure 10. PCB - Inner Layer - Layer 2 (Top View)
Figure 11. PCB - Inner Layer - Layer 3 (Top View)
UG173 Rev.0.00 Page 15 of 22
Jul 12, 2018
ISL68300EVAL3Z 3. PCB Layout Guidelines
Figure 12. PCB - Inner Layer - Layer 4 (Top View)
Figure 13. PCB - Inner Layer - Layer 5 (Top View)
UG173 Rev.0.00 Page 16 of 22
Jul 12, 2018
ISL68300EVAL3Z 3. PCB Layout Guidelines
Figure 14. PCB - Bottom Layer (Top View)
Figure 15. PCB - Bottom Silk Screen
UG173 Rev.0.00 Page 17 of 22
Jul 12, 2018
ISL68300EVAL3Z 4. Typical Performance Curves
4. Typical Performance Curves
Unless noted: VIN = 12V, TA = +25°C
Figure 16. Efficiency Figure 17. Output Voltage Ripple at Full Load
Figure 18. Load Transient Waveforms Figure 19. Load Transient Waveforms
0
10
20
30
40
50
60
70
80
90
100
0 102030405060
Efficiency (%)
Output Current (A)
VOUT (AC-Coupled) 20mV/Div
SW_Phase2 5V/Div
5µs/Div
SW_Phase1 5V/Div
VOUT (AC-Coupled) 20mV/Div
5µs/Div
Load Current 20A/Div
SW_Phase2 5V/Div
SW_Phase1 5V/Div
VOUT (AC-Coupled) 20mVA/Div
5µs/Div
Load Current 20A/Div
SW_Phase2 5V/DivSW_Phase1 5V/Div
UG173 Rev.0.00 Page 18 of 22
Jul 12, 2018
ISL68300EVAL3Z 5. Configuration files
5. Configuration files
Sample configuration files for the ISL68300 in the ISL68300EVAL3Z. Copy and paste (from STORE_CONTROL to
### End User Store) to a text editor and save it as Confile_file_name.txt. The # symbol is used for a comment line.
• Configuration file for the master device (Address = 0x62)
STORE_CONTROL 0x21
STORE_CONTROL 0x11
STORE_CONTROL 0x12
# -------------Start of User Settings------------
VOUT_COMMAND 0x2000 # 1 V
VOUT_MAX 0x2666 # 1.2 V
VOUT_MARGIN_HIGH 0x219A # 1.05 V
VOUT_MARGIN_LOW 0x1E66 # 0.95 V
FREQUENCY_SWITCH 0xFB20 # 400 kHz
IOUT_CAL_GAIN 0xAAE1 # 0.36 mV/A
VOUT_OV_FAULT_LIMIT 0x2333 # 1.1 V
VOUT_OV_WARN_LIMIT 0x228F # 1.08 V
VOUT_UV_WARN_LIMIT 0x1B33 # 0.85 V
VOUT_UV_FAULT_LIMIT 0x199A # 0.8 V
IOUT_OC_FAULT_LIMIT 0xE320 # 50 A
IOUT_OC_WARN_LIMIT 0xE2D0 # 45 A
IOUT_UC_FAULT_LIMIT 0xE4E0 # -50 A
POWER_GOOD_ON 0x1CCD # 0.9 V
ISENSE_CONFIG 0x2902
USER_CONFIG 0x0C45
DDC_CONFIG 0x0001
ASCR_ADVANCED 0x21A9
INDUCTOR 0xA333 # 0.2 µH
ASCR_CONFIG 0x3B450226
TRACK_CONFIG 0x00
DDC_GROUP 0x00202020
IOUT_AVG_OC_FAULT_LIMIT 0xE280 # 40 A
IOUT_AVG_UC_FAULT_LIMIT 0xE580 # -40 A
# --------------End of User Settings-------------
# ----------Store Setup - Do Not Modify----------
STORE_CONTROL 0x13
### End User Store
UG173 Rev.0.00 Page 19 of 22
Jul 12, 2018
ISL68300EVAL3Z 5. Configuration files
• Configuration file for the master device (Address = 0x63)
STORE_CONTROL 0x21
STORE_CONTROL 0x11
STORE_CONTROL 0x12
# -------------Start of User Settings------------
ON_OFF_CONFIG 0x17
VOUT_COMMAND 0x2000 # 1 V
VOUT_CAL_OFFSET 0x0000 # 0 V
VOUT_MAX 0x2666 # 1.2 V
VOUT_MARGIN_HIGH 0x219A # 1.05 V
VOUT_MARGIN_LOW 0x1E66 # 0.95 V
MAX_DUTY 0xEB20 # 100 %
FREQUENCY_SWITCH 0xFB20 # 400 kHz
INTERLEAVE 0x0008
IOUT_CAL_GAIN 0xAAE1 # 0.36 mV/A
IOUT_CAL_OFFSET 0x0000 # 0 A
VOUT_OV_FAULT_LIMIT 0x2333 # 1.1 V
VOUT_OV_FAULT_RESPONSE 0x80
VOUT_OV_WARN_LIMIT 0x228F # 1.08 V
VOUT_UV_WARN_LIMIT 0x1B33 # 0.85 V
VOUT_UV_FAULT_LIMIT 0x199A # 0.8 V
VOUT_UV_FAULT_RESPONSE 0x80
IOUT_OC_FAULT_LIMIT 0xE320 # 50 A
IOUT_OC_WARN_LIMIT 0xE2D0 # 45 A
IOUT_UC_FAULT_LIMIT 0xE4E0 # -50 A
OT_FAULT_LIMIT 0xEBE8 # 125 °C
OT_FAULT_RESPONSE 0x80
OT_WARN_LIMIT 0xEB70 # 110 °C
UT_WARN_LIMIT 0xDC40 # -30 °C
UT_FAULT_LIMIT 0xE530 # -45 °C
UT_FAULT_RESPONSE 0x80
VIN_OV_FAULT_LIMIT 0xDA00 # 16 V
VIN_OV_FAULT_RESPONSE 0x80
VIN_OV_WARN_LIMIT 0xD3E0 # 15.5 V
VIN_UV_WARN_LIMIT 0xCB80 # 7 V
VIN_UV_FAULT_LIMIT 0xCB40 # 6.5 V
VIN_UV_FAULT_RESPONSE 0x80
POWER_GOOD_ON 0x1CCD # 0.9 V
UG173 Rev.0.00 Page 20 of 22
Jul 12, 2018
ISL68300EVAL3Z 5. Configuration files
TON_RISE 0xCA80 # 5 ms
TOFF_FALL 0xCA80 # 5 ms
ISENSE_CONFIG 0x2902
USER_CONFIG 0x0C4A
DDC_CONFIG 0x2001
POWER_GOOD_DELAY 0xBA00 # 1 ms
ASCR_ADVANCED 0x21A9
INDUCTOR 0xA333 # 0.2 µH
OVUV_CONFIG 0x02 # 2 null
TEMPCO_CONFIG 0xA7
ASCR_CONFIG 0x3B450226
SEQUENCE 0x0000
TRACK_CONFIG 0x00
DDC_GROUP 0x00202020
MFR_IOUT_OC_FAULT_RESPONSE 0x80
MFR_IOUT_UC_FAULT_RESPONSE 0x80
IOUT_AVG_OC_FAULT_LIMIT 0xE280 # 40 A
IOUT_AVG_UC_FAULT_LIMIT 0xE580 # -40 A
# --------------End of User Settings-------------
# ----------Store Setup - Do Not Modify----------
STORE_CONTROL 0x13
### End User Store
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