Device Overview
MPS MP2639AGR-Z is an exact-order 2-cell Li-ion/Li-polymer bidirectional switching charger supplied in QFN-26. The main engineering checks for this variant are Device Function (2-cell Li-ion/Li-polymer bidirectional switching charger), Input Voltage (4.0 to 5.75 V), Programmable Charge Current (up to 2.5 A).
Selection-Critical Data
| Parameter | Confirmed Data | Why It Matters |
|---|---|---|
| Device Function | 2-cell Li-ion/Li-polymer bidirectional switching charger | Defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared. |
| Input Voltage | 4.0 to 5.75 V | Defines compatibility with the available system input rail and its operating range. |
| Programmable Charge Current | up to 2.5 A | Defines the current-handling or drive capability that must meet the load while respecting current-path and thermal limits. |
| Charge Voltage | 8.4 V (0.5% accuracy) | Defines the output/reference voltage range or setpoint that must match the target rail, battery or threshold. |
| Programmable Discharge Current | up to 5.0 A | Defines the current-handling or drive capability that must meet the load while respecting current-path and thermal limits. |
| Cell Balance Current | 200 mA | Defines the current-handling or drive capability that must meet the load while respecting current-path and thermal limits. |
| Exact Package | QFN-26 | Determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility. |
Power-Management Selection Notes
At 2-cell Li-ion/Li-polymer bidirectional switching charger, the device function defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared. 4.0 to 5.75 V is the stated input voltage value. Defines compatibility with the available system input rail and its operating range. up to 2.5 A is the stated programmable charge current value. Defines the current-handling or drive capability that must meet the load while respecting current-path and thermal limits. The programmable discharge current is up to 5.0 A; this defines the current-handling or drive capability that must meet the load while respecting current-path and thermal limits.
At QFN-26, the exact package determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility.
The charge voltage is 8.4 V; this defines the output/reference voltage range or setpoint that must match the target rail, battery or threshold. Technical condition: 0.5% accuracy. For cell balance current, 200 mA is the approved value. Defines the current-handling or drive capability that must meet the load while respecting current-path and thermal limits.
