Monolithic Power Systems (MPS) MP2639A Switching Chargers
Monolithic Power Systems (MPS) MP2639A Switching Chargers are highly integrated, switch-mode battery charging management devices for two-cell Li-ion and Li-polymer batteries. These flexible modules work in charge mode, discharge mode, and sleep mode. The series can charge a two-cell battery from a 5V adapter or USB input. MPS MP2639A Switching Chargers limit the die temperature to a preset value of 120°C for a safe operation. Features include battery temperature monitoring, a programmable timer to prevent prolonged charging of a dead battery, overvoltage protection, and thermal shutdown. Applications include power stations, power banks, and mobile internet devices.
Features
- USB-compliant charger
- Integrates input current-based and input voltage-based power management functions
- Up to 2.5A programmable charge current for 2-cell applications
- Negative temperature coefficient pin for temperature monitoring
- Detects the battery voltage automatically
- Charges the battery in trickle current, constant current, and constant voltage phases
- Programmable timer backup protection
- Discharge mode load trace compensation
- Four LED battery level and status indicators
- QFN-26 (4mm x 4mm) package
Applications
- Power stations
- Power banks for smartphones, tablets, and portable devices
- Mobile internet devices
Specifications
- 4V to 5.75V input voltage range
- 8.4V charge voltage with 0.5% accuracy
- Up to 5A programmable discharge current
Typical Application
Publicado: 2017-09-13
| Actualizado: 2022-05-24