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MP2681B 5-30V CC/CV Controller SOIC
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pMPS MP2681B — CC/CV Controller, 5-30V input, SOIC./p
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MP2681B 5-30V CC/CV Controller SOIC
The MPS MP2681B is a CC/CV Controller. It operates from a 5 V to 30 V input. It is supplied in a SOIC package.
The MP2681B is a highly integrated Li-ion or Li- polymer switch-mode battery-charge controller with full protection and status indication.
Key Specifications
| Part Number | MP2681B |
| Function | CC/CV Controller |
| Input Voltage | 5 V to 30 V |
| Package | SOIC |
| Ordering Codes | MP2681B |
Features
- Constant Voltage and Constant-Current Control
- Pre-Charge Mode for Deeply-Discharged Batteries
- Automatic Battery-Cell Detection
- Two 1MHz Bandwidth Operational Amplifiers Output Connected with OR Logic
- Wide Input-Voltage Range: 5.0V to 30V
- Auto-Recharge
- Charge On/Off Control
- Programmable Internal Timer
- Battery Temperature Monitoring
- Charge-Status Indication
Typical Application Circuit
Applications
- Battery Charger for Portable Tools
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
What input voltage does the MP2681B support?
5 V to 30 V.
Which package and ordering codes apply to the MP2681B?
SOIC; order codes include MP2681B.
What are the defining features of the MP2681B?
Constant Voltage and Constant-Current Control Pre-Charge Mode for Deeply-Discharged Batteries
Shenzhen Gaorunxin Technology Co., Ltd
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