Maxim Integrated MAX8934GETI+ Smart Power Selector™, Li-Ion/Polymer battery charger IC, 1-cell, 4.2V pack, 1.5A programmable charge current, USB interface, 28-TQFN (4x4 mm), -40°C to 85°C.
| Parameter | Value |
|---|---|
| Series | Smart Power Selector™ |
| Mounting | Surface Mount |
| Battery pack voltage | 4.2V |
| Supply voltage | 6.6V |
| Current - charging | Constant - Programmable |
| Charge current - max | 1.5A |
| Interface | USB |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tube |
| Case | 28-WFQFN Exposed Pad |
| Number of cells | 1 |
| Fault protection | Over Voltage |
| Battery chemistry | Lithium Ion/Polymer |
| Programmable features | Current, Timer |
Charge current and timer are programmable, so you can set the charge rate to match the battery capacity and safety timeout for your specific cell. The overvoltage fault protection shuts down the charger if the input exceeds the safe limit, which is a standard sanity check for any Li-ion charging rail.
That means no last-time-buy clock ticking and no forced redesign.
Yes, overvoltage fault protection is included. The charger shuts down if the input voltage exceeds a safe threshold, protecting the battery and the downstream circuitry.
The MAX8934GETI+ is the '+' suffix variant in the same family. The '+' typically indicates RoHS compliance (ROHS3 Compliant here). Whether it is a drop-in replacement depends on the specific MAX8934G variant — verify the pinout and package (both are 28-TQFN) and the charge parameters against your existing BOM.