ISL6255A Obsolete Notebook Battery Charger In Stock
Manufacturer: Renesas Electronics / Intersil
Base Part Number: ISL6255A
Product Type: Notebook battery charger controller
Power Topology: Synchronous buck controller using external MOSFETs
Battery Configuration: 2-, 3- or 4-cell packs
Lifecycle Status: Obsolete
Packages: 28-lead QSOP or 28-lead QFN
Main Applications: Notebook, desknote and sub-notebook computers; PDAs; legacy portable equipment
The ISL6255A is an obsolete notebook battery charger controller originally supplied under the Intersil brand and now supported by Renesas product documentation. It combines a synchronous buck charger with automatic selection between the AC adapter and battery, making it important for the repair and continued production of legacy notebook computers and portable systems.
DataStorageIC offers available inventory of ISL6255AHAZ, ISL6255AHAZ-T, ISL6255AHRZ and ISL6255AHRZ-T. Customers can submit a request for quotation with the exact part number, required quantity, package, date-code preference and destination country. Availability is subject to prior sale.
Key Technical Specifications
| Parameter | ISL6255A Specification |
|---|---|
| Input voltage range | 7V to 25V |
| Supported battery packs | 2, 3 or 4 series cells |
| Maximum battery-voltage setpoint | Up to 17.64V |
| Charge-current capability | Programmable; datasheet describes control up to 10A, subject to the external power-stage and thermal design |
| Switching frequency | Fixed 300kHz |
| Charge-voltage accuracy | ±0.5% from -10°C to +100°C |
| Input current-limit accuracy | ±3% |
| Battery charge current-limit accuracy | ±3% |
| Charge control | Constant-current and constant-voltage operation |
| Power-source control | Automatic selection between adapter and battery |
| Battery leakage current | Less than 10µA |
| Operating temperature range | -10°C to +100°C |
| Moisture sensitivity level | MSL 3 |
ISL6255A Package and Ordering Options
The package suffix is critical because the QSOP and QFN versions are not physically interchangeable.
| Full Part Number | Package | Packing Method | Package Size |
| ISL6255AHAZ | QSOP-28 | Tube | 9.9 × 3.9 × 1.55mm |
| ISL6255AHAZ-T | QSOP-28 | Tape and reel | 9.9 × 3.9 × 1.55mm |
| ISL6255AHRZ | QFN-28 | Tube | 5.0 × 5.0 × 0.90mm |
| ISL6255AHRZ-T | QFN-28 | Tape and reel | 5.0 × 5.0 × 0.90mm |
Frequently Asked Questions
Is the ISL6255A discontinued?
Yes. Renesas marks the ISL6255A as obsolete. PLC21060 lists January 21, 2023 as the obsolete date for all four ISL6255A ordering variants.
Which ISL6255A part numbers are available?
The product family includes ISL6255AHAZ and ISL6255AHAZ-T in QSOP-28, plus ISL6255AHRZ and ISL6255AHRZ-T in QFN-28. Ask for current availability using the exact ordering code.
What battery configurations does the ISL6255A support?
It supports 2-, 3- and 4-cell battery packs, with a battery-voltage setpoint of up to 17.64V.
What is the maximum ISL6255A charge current?
The datasheet describes charging-current control up to 10A. The usable current in a particular product depends on the external MOSFETs, current-sense resistor, inductor, PCB layout, cooling and other power-stage design limits.
Does the ISL6255A use SMBus programming?
No. The ISL6255A uses analog inputs to program charge current and charge voltage. It should not be treated as a drop-in replacement for an SMBus-controlled notebook charger.
Is there a direct replacement for the ISL6255A?
Renesas lists no official replacement in the EOL notice. Any proposed substitute requires a complete electrical, mechanical and system-level engineering review.
Request a Quote for ISL6255A
Need an obsolete ISL6255A notebook battery charger for repair, maintenance or ongoing production? Send DataStorageIC your full part number and required quantity to check current stock, package, date code, lead time and price.
Request pricing for ISL6255AHAZ, ISL6255AHAZ-T, ISL6255AHRZ or ISL6255AHRZ-T today.
