Overview
Description
The ISL8274MEVAL1Z provides all of the circuitry required to evaluate the features of the ISL8274M 30A/30A dual-channel digital PMBus™ step-down power module. A majority of the features of the ISL8274M, 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 digital module evaluation board that supports the Digital-DC™ (DDC) bus.
The ISL8274M is a dual-channel, step-down DC/DC power supply module capable of delivering up to 30A per channel. With an integrated digital PWM controller, synchronous power switches, an inductor, and passives, only input and output capacitors are needed to finish the design. A set of optional external resistors allows the user to easily configure the device for standard operation. For advanced configurations, a standard PMBus interface addresses tasks such as sequencing and fault management, as well as real-time full telemetry and point-of-load (POL) monitoring.
The ISL8274M uses ChargeMode control architecture, which responds to a transient load within a single switching cycle. Operating across an input voltage range from 4.5V to 14V, the ISL8274M offers adjustable output voltage from 0.6V to 5V.
The ISL8274MEVAL1Z evaluation board is a 4in x 4.5in 8-layer FR4 board with 2oz. copper on the top and bottom layers and 1oz. copper in the buried layers. This evaluation board comes with a placeholder for pin-strap resistors to adjust the output voltage, switching frequency, input undervoltage lockout (UVLO) protection threshold, device PMBus address, overcurrent limit, ASCR setting, and soft-start setting. More configurations can be easily programmed or changed using a PMBus compliant serial bus interface.
The ISLUSBEVAL1Z (USB to PMBus adapter) is provided with this evaluation board, 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. The ISL8274MEVAL1Z can operate in pin-strap mode without needing the ISLUSBEVAL1Z adapter or PMBus communication.
Features
- VIN range of 4.5V to 14V, VOUT adjustable from 0.6V to 5V. Up to 95.5% efficiency
- Programmable VOUT, margining, UVP/OVP, OTP/UTP, 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
- Mechanical switch for enable and power-good LED indicator
Applications
Applications
- Server, telecom, storage, and datacom
- Industrial/ATE and networking equipment
- General purpose power for ASIC, FPGA, DSP, and memory
Documentation
|
|
|
|
|---|---|---|
| Type | Title | Date |
| Manual - Development Tools | PDF 1.63 MB | |
| Guide | PDF 4.68 MB | |
| Datasheet | PDF 3.47 MB | |
| Guide | PDF 714 KB | |
4 items
|
||
Design & Development
Software & Tools
Software & Tools
| Software title
|
Software type
|
Company
|
|---|---|---|
| PowerNavigator Software Renesas' PowerNavigator™ software allows simple configuration and monitoring of multiple Digital-DC devices using a PC with a USB interface.
|
Monitor Debugger/RAM Monitor | Renesas |
1 item
|
||
ISL8274MEVAL1Z Obsolete |
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
- AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product