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MP2678 1.7A Li-Ion Battery Charger Protection Circuit QFN-8
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pMPS MP2678 — Li-Ion Battery Charger Protection Circuit, 1.7 A output, QFN-8./p
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MP2678 1.7A Li-Ion Battery Charger Protection Circuit QFN-8
The MPS MP2678 is a Li-Ion Battery Charger Protection Circuit. It is rated for 1.7 A and handles 1s battery stacks. It is supplied in a QFN-8 package.
The MP2678 is a high-performance, single-cell Li-ion and Li-polymer battery charger protection circuit with low-dropout mode.
Key Specifications
| Part Number | MP2678 |
| Function | Li-Ion Battery Charger Protection Circuit |
| Output Voltage | 5 V |
| Current Rating | 1.7 A |
| Battery Cells | 1s |
| Package | QFN-8 |
| Ordering Codes | MP2678 |
Features
- Input Surge Up to 30V
- 5V Regulated Output
- Input Over-Voltage Protection (OVP)
- MPS Proprietary Battery OVP
- Output Short-Circuit Protection (SCP)
- Soft-Stop to Prevent Voltage Spikes
- Up to 1.7A Load Current
- Thermal Monitoring
- Thermal Shutdown
- Enable (EN) Function
Typical Application Circuit
Applications
- Cell Phones
- Smartphones
- Personal Digital Assistants (PDAs)
- MP3 Players
- Digital Cameras
Design Notes
- Cell measurement accuracy is specified over temperature — calibrate the sense path if the gauge reports state of charge rather than raw voltage.
- Balance current is limited by the bleed resistor and the pack wiring; check the resulting balance time for the capacity mismatch you expect.
- Protection thresholds should sit inside the cell maker's absolute limits with margin for measurement error.
- Keep the sense lines separate from the power path to avoid IR drop corrupting readings.
Common Questions
Which package and ordering codes apply to the MP2678?
QFN-8; order codes include MP2678.
What are the defining features of the MP2678?
Input Surge Up to 30V 5V Regulated Output
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