BQ2018SN-E1TR vs DS2788E+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 MON LI-ION 1CELL 14TSSOP |
| Package | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) |
| Series | Power Minder? | - |
| Interface | HDQ | 1-Wire |
| Operating Temperature | -20°C ~ 70°C (TA) | -20°C ~ 70°C (TA) |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 14-TSSOP (0.173\", 4.40mm Width) |
| Supplier Device Package | 8-SOIC | 14-TSSOP |
| Function | Battery Monitor | Battery Monitor |
| Battery Chemistry | Multi-Chemistry | Lithium Ion/Polymer |
| Number of Cells | 1 ~ 4 | 1 |
| Mounting Type | - | Surface Mount |
| Fault Protection | - | - |
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1. What is a PMIC battery management system (BMS)?
A battery management system (BMS) is a system used to monitor and manage the health status of batteries, including battery charge and discharge control, voltage and temperature monitoring, balancing protection, etc., to ensure battery safety, extend life and improve performance.
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2. 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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3. What is battery balancing? How does BMS achieve it?
Battery balancing is to ensure that all batteries work in unison by balancing the voltage of each battery cell. The BMS gradually balances the battery during charging through passive or active balancing technology to prevent some cells from overcharging or discharging.
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4. 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.
