Renesas ISL9238IRTZ, Li-Ion/Polymer battery charger IC, 1-4 cells, I²C/SMBus/USB interface, 2.4V-18.304V pack voltage, 23.4V max supply, -40°C to 100°C, 32-TQFN (4x4) exposed pad.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Battery pack voltage | 2.4V ~ 18.304V |
| Supply voltage | 23.4V |
| Current - charging | Constant - Programmable |
| Interface | I²C, SMBus, USB |
| Operating temperature | -40°C ~ 100°C (TA) |
| Package | Tube |
| Case | 32-WFQFN Exposed Pad |
| Number of cells | 1 ~ 4 |
| Fault protection | Over Current, Over Temperature, Over Voltage |
| Battery chemistry | Lithium Ion/Polymer |
| Programmable features | Current |
The ISL9238IRTZ communicates over I²C, SMBus, and USB. The host reads charge status, fault flags, and battery voltage/current telemetry over the bus.
It is ROHS3 compliant, so no exemption expiry concerns for shipments into Europe or other regulated markets.
Yes, the ISL9238IRTZ supports 1 to 4 series cells, and the 18.304V maximum pack voltage accommodates a 4S Li-Ion stack (typical 4.2V/cell gives 16.8V full charge).
Yes, the ISL9238IRTZ includes over-voltage protection as part of its fault protection suite, along with over-current and over-temperature protection.
Yes, the ISL9238IRTZ supports I²C, SMBus, and USB interfaces for host communication.