Maxim Integrated Smart Power Selector™, MAX77757JEFG420+, USB Type-C autonomous charger, 14V input, 3.15A max charge current, 1-cell Li-Ion/Polymer, 4.2V battery pack, -40°C to 85°C, 24-FC2QFN (3x3), Tray.
| Parameter | Value |
|---|---|
| Series | Smart Power Selector™ |
| Mounting | Surface Mount |
| Battery pack voltage | 4.2V |
| Supply voltage | 13.7V |
| Current - charging | Constant - Programmable |
| Charge current - max | 3.15A |
| Interface | USB |
| Operating temperature | -40°C ~ 85°C |
| Package | Tray |
| Case | 24-PowerUFQFN |
| Number of cells | 1 |
| Fault protection | Over Current, Over Temperature, Over-Under Voltage, Short Circuit |
| Battery chemistry | Lithium Ion/Polymer |
| Programmable features | Current, Timer, Voltage |
The 3.15A max charge current determines how fast a 1-cell Li-Ion pack can be charged. The 14V input maximum lets the part handle standard USB-C PD adapters without an external pre-regulator.
If you are freezing a BOM, this part is safe for new designs today, but keep an eye on Maxim (now Analog Devices) PCNs for any future die shrinks or package changes.
Yes, the MAX77757JEFG420+ has an Active product status per the manufacturer's lifecycle record. No end-of-life notice is in effect.
Yes, the part is described as a 14V input, 3A USB Type-C autonomous charger — it handles the USB-C negotiation without an external host microcontroller.