6-Phase 12V/48V Bidirectional Synchronous PWM Controller Evaluation Kit
The ISL78226 software enables control and observation of register settings and functional status of the controller. It works primarily via a USB to I2C interface...
Overview
Description
The ISL78226 is a 6-phase, bidirectional, synchronous PWM controller designed to perform power conversion between 12V and 48V buses up to 3. 75kW at >95% conversion efficiency. One ISL78226 supports both Buck and Boost power conversion enabling a compact and robust design with minimum components. ISL78226 regulates both voltage and current to control power transfer from bus to bus. The multiphase architecture uses interleaved timing to support up to six parallel power stages per ISL78226. By interleaving the power stages, the ripple frequency is multiplied, reducing input and output ripple voltage and current. Lower ripple results in fewer input/output capacitors and therefore, lower component cost and smaller circuit implementation. The IC is designed to be interleaved in a master/slave architecture to be scalable for higher power. Also integrated within the device is a dual-output Flyback controller that generates both a 12V supply for the power stage FET drivers as well as a 6V supply for the ISL78226 from either of the two buses. A 200mA auxiliary linear regulator is provided to supply a local microcontroller or interface devices. A PMBus interface provides system control and diagnostics to support functional safety requirements. This digital interface offers the system controller the ability to program operating modes, voltage and current limit warning, protection thresholds, individual fault response, and rapid fault condition detection.
Features
- 6-phase bidirectional synchronous 12V to 48V controller
- Master/slave architecture supports up to 4 ICs in parallel
- Voltage and current regulation
- Phase dropping facilitated with companion FET driver
- Average phase-to-phase current balancing
- 2% current monitor gain accuracy from 0 to full load
- Supply and clock redundancy for functional safety
- Cycle-by-cycle peak current limiting
- Cycle-by-cycle negative current limiting
- Digitally programmable average current limit
- Analog/digital control of output voltage
- PMBus for status monitoring and fault response control
- Selectable phase dropping and diode emulation for light-load efficiency improvement
- Comprehensive protection with selectable hiccup or latch-off fault responses
- Digitally programmable warning and fault thresholds
- Dual-output Flyback controller
- 200mA adjustable output linear regulator
- 10mmx10mm 64 Ld TQFP with exposed pad thermal interface
- AEC-Q100 Grade 1
Comparison
Applications
Documentation
= Featured Documentation
Log in required to subscribe
|
|
|
|
|---|---|---|
| Type | Title | Date |
| Datasheet | PDF 6.21 MB | |
| Manual - Development Tools | PDF 12.28 MB | |
| White Paper | PDF 866 KB | |
| Application Note | PDF 509 KB | |
| Application Note | PDF 397 KB | |
5 items
|
||
Design & Development
Software & Tools
Software & Tools
| Software title
|
Software type
|
Company
|
|---|---|---|
| iSim:PE Offline Simulation Tool iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
|
Simulator | Renesas |
1 item
|
||
Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
ISL78226ANZ Active Samples Available
Buy Now
|
TQFP-EP | Tray | 3 | 8.355 | Get Samples, |
ISL78226ANZ-T Active Samples Available |
TQFP-EP | Reel | 3 | 8.355 | Get Samples, |
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
Videos & Training
ISL78226 PWM Controller Webinar
Introducing the ISL78226, a 12V to 48V 6-phase bidirectional synchronous PWM controller for the automotive industry.
Video List