BQ2018SN-E1TR vs DS2777G+T&R
| Part Number |
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| Category | PMIC - Battery Management | PMIC - Battery Management |
| Manufacturer | Texas Instruments | Maxim Integrated |
| Description | IC BATTERY PWR MONITOR 8-SOIC | IC BATT MFUNC LI-ION 2CEL 14TDFN |
| Package | 8-SOIC (0.154", 3.90mm Width) | Cut Tape (CT) |
| Series | Power Minder? | - |
| Interface | HDQ | I²C |
| Operating Temperature | -20°C ~ 70°C (TA) | -20°C ~ 70°C (TA) |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 14-WFDFN Exposed Pad |
| Supplier Device Package | 8-SOIC | 14-TDFN (3x5) |
| Function | Battery Monitor | Multi-Function Controller |
| Battery Chemistry | Multi-Chemistry | Lithium Ion/Polymer |
| Number of Cells | 1 ~ 4 | 2 |
| Mounting Type | - | Surface Mount |
| Fault Protection | - | Over Current, Over Voltage |
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1. What are the main functions of a PMIC battery management system?
The main functions of a BMS include charge and discharge control, battery balancing, power monitoring, temperature protection, overvoltage/undervoltage protection, and fault detection, etc., to ensure battery safety and efficient operation.
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2. How does a battery management system extend battery life?
The BMS reduces the battery aging rate and extends the battery life by means of balanced charging, preventing overcharge and over-discharge, and managing temperature.
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3. How does BMS monitor power?
BMS uses voltage, current and temperature sensors to detect battery status in real time, and calculates the remaining power (SoC) through algorithms to help users understand the current available power of the battery.
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4. How does the battery management system improve battery safety?
BMS monitors battery voltage, current, temperature and other parameters, and promptly cuts off the current, performs temperature adjustment or other protection operations to prevent safety hazards such as short circuit and overheating of the battery.
