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MP2637A 4.5-6V, 2.5A Switch Mode Battery Charger QFN-24
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pMPS MP2637A — Switch Mode Battery Charger, 4.5-6V input, 2.5 A output, QFN-24./p
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MP2637A 4.5-6V, 2.5A Switch Mode Battery Charger QFN-24
The MPS MP2637A is a Switch Mode Battery Charger. It operates from a 4.5 V to 6 V input, is rated for 2.5 A and handles 1s battery stacks. It is supplied in a QFN-24 package.
The MP2637A is a highly-integrated, flexible, switch-mode battery charger with system power path management designed for single-cell Li- ion or Li-polymer batteries for use in a wide range of applications.
Key Specifications
| Part Number | MP2637A |
| Function | Switch Mode Battery Charger |
| Input Voltage | 4.5 V to 6 V |
| Current Rating | 2.5 A |
| Battery Cells | 1s |
| Package | QFN-24 |
| Ordering Codes | MP2637A |
Features
- Up to 16V Sustainable Input Voltage
- 4.5V to 6V Operating Input Voltage Range
- Power Management Function, Integrated Input Current Limit, Input Voltage Regulation
- Up to 2.5A Programmable Charge Current
- Trickle-Charge Function
- Selectable 4.20V/4.055V Charge Voltage with 0.5% Accuracy
- Negative Temperature Coefficient Pin (NTC) for Battery Temperature Monitoring
- Programmable Timer Back-Up Protection
- Thermal Regulation and Thermal Shutdown
- Internal Battery Reverse Leakage Blocking
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 MP2637A support?
4.5 V to 6 V. The rated output is 2.5 A.
Which package and ordering codes apply to the MP2637A?
QFN-24; order codes include MP2637A.
What are the defining features of the MP2637A?
Up to 16V Sustainable Input Voltage 4.5V to 6V Operating Input Voltage Range
Shenzhen Gaorunxin Technology Co., Ltd
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