Maxim Integrated MAX77751FEFG+ battery charger IC, Li-Ion 1-cell, USB interface, constant-programmable current up to 3.15A, 24-PowerUFQFN package, surface mount, -40°C to 85°C, active lifecycle.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Battery pack voltage | 4.2V |
| 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 Voltage, Reverse Battery, Short Circuit |
| Battery chemistry | Lithium Ion |
| Programmable features | Current |
Housed in a 24-PowerUFQFN with an exposed pad (3x3 mm), the MAX77751FEFG+ relies on the PCB copper pour and via stitching under the package to dissipate heat from the 3.15A charge pass element.
The device is ROHS3 compliant, meeting the material restriction directive for solder joints and lead-free assembly.
The maximum charge current is 3.15A, programmable via the current-set pin or register. This is the peak rating — the actual charge current in a design may be limited by thermal constraints of the 24-PowerUFQFN package and PCB copper area.
Yes, the device includes a USB interface, making it suitable for charging from a USB port or adapter. The input supply range extends to 13.7V, covering standard USB and higher-voltage adapters.
The MAX77751FEFG+ and MAX77751FEFG+T share the same die and specifications — the difference is the shipping medium. The + suffix denotes tray packaging; the +T suffix denotes tape-and-reel. They are electrically identical and pin-compatible.