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MP2635A 4.5-6V, 2A Single Cell Switch Mode Battery Charger QFN24
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pMPS MP2635A — Single Cell Switch Mode Battery Charger, 4.5-6V input, 2 A output, QFN24./p
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MP2635A 4.5-6V, 2A Single Cell Switch Mode Battery Charger QFN24
The MPS MP2635A is a Single Cell Switch Mode Battery Charger. It operates from a 4.5 V to 6 V input, is rated for 2 A and handles 1s battery stacks. It is supplied in a QFN24 package.
The MP2635A is a highly-integrated, flexible, switch-mode battery charge management and system power path management device for a single-cell Li-ion and Li-Polymer battery used in a wide range of portable applications.
Key Specifications
| Part Number | MP2635A |
| Function | Single Cell Switch Mode Battery Charger |
| Input Voltage | 4.5 V to 6 V |
| Current Rating | 2 A |
| Battery Cells | 1s |
| Peak Efficiency | 91% |
| Package | QFN24 |
| Ordering Codes | MP2635A |
Features
- 4.5V-to-6V Operating Input Voltage Range
- Integrated Input-Current-Based Power Management Function
- Up to 2A Programmable Charge Current
- Trickle-Charge Function
- Selectable 3.6V/ 4.2V Charge Voltage with 0.5% Accuracy
- Negative Temperature Coefficient Pin for Battery Temperature Monitoring
- Programmable Timer Back-Up Protection
- Thermal Regulation and Thermal Shutdown
- Internal Battery Reverse Leakage Blocking
- Reverse Boost Operation Mode for System Power
Typical Application Circuit
Applications
- Sub-Battery Applications
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 MP2635A support?
4.5 V to 6 V. The rated output is 2 A.
Which package and ordering codes apply to the MP2635A?
QFN24; order codes include MP2635A.
What are the defining features of the MP2635A?
4.5V-to-6V Operating Input Voltage Range Integrated Input-Current-Based Power Management Function
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