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MP26101 5-24V, 2A or 2- Cell 4.1V/Cell Switching Li-Ion Battery Charger QFN16
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pMPS MP26101 — or 2- Cell 4.1V/Cell Switching Li-Ion Battery Charger, 5-24V input, 2 A output, QFN16./p
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MP26101 5-24V, 2A or 2- Cell 4.1V/Cell Switching Li-Ion Battery Charger QFN16
The MPS MP26101 is a or 2- Cell 4.1V/Cell Switching Li-Ion Battery Charger. It operates from a 5 V to 24 V input, is rated for 2 A and switches at 1.1 MHz. It is supplied in a QFN16 package.
The MP26101 is a monolithic switching charger for 1- or 2-cell Li-Ion battery packs.
Key Specifications
| Part Number | MP26101 |
| Function | or 2- Cell 4.1V/Cell Switching Li-Ion Battery Charger |
| Input Voltage | 5 V to 24 V |
| Current Rating | 2 A |
| Switching Frequency | 1.1 MHz |
| Peak Efficiency | 90% |
| Package | QFN16 |
| Ordering Codes | MP26101 |
Features
- Charges 1- or 2-cell Li-Ion battery packs
- 4.1V/Cell Charge Full Voltage
- 3.9V/Cell Auto-recharge Threshold
- Wide 5V to 24V Operating Input Range
- Up to 2A Programmable Charging Current
- ±0.75% VBATT Accuracy
- 0.2Ω Internal Power MOSFET
- Up to 90% Efficiency
- Fixed 1.1MHz Frequency
- Preconditioning for Fully-Depleted Batteries
Typical Application Circuit
Applications
- Distributed Power Systems
- Chargers for 1-Cell or 2-Cell Li-Ion Batteries
- Smartphones
Design Notes
- Charge current accuracy depends on the sense resistor tolerance, so use a 1% or better part and keep its traces Kelvin-connected.
- Wire the NTC input for JEITA profile control if the pack is charged over temperature.
- Set the input current limit to what the adapter can actually deliver; a limit above the adapter rating causes the input rail to collapse mid-charge.
- Termination current and recharge threshold dominate cycle life in shallow-cycling products.
Common Questions
What input voltage does the MP26101 support?
5 V to 24 V. The rated output is 2 A.
Which package and ordering codes apply to the MP26101?
QFN16; order codes include MP26101.
What are the defining features of the MP26101?
Charges 1- or 2-cell Li-Ion battery packs 4.1V/Cell Charge Full Voltage
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