BQ2018SN-E1TR vs BQ26220PWR
| Part Number |
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| Category | PMIC - Battery Management | PMIC - Battery Management |
| Manufacturer | Texas Instruments | Texas Instruments |
| Description | IC BATTERY PWR MONITOR 8-SOIC | IC BATTERY MONITOR HP 8-TSSOP |
| Package | 8-SOIC (0.154", 3.90mm Width) | 8-TSSOP (0.173", 4.40mm Width) |
| Series | Power Minder? | - |
| Interface | HDQ | HDQ |
| Operating Temperature | -20°C ~ 70°C (TA) | -20°C ~ 70°C (TA) |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 8-SOIC | 8-TSSOP |
| Function | Battery Monitor | Battery Monitor |
| Battery Chemistry | Multi-Chemistry | Lithium-Ion |
| Number of Cells | 1 ~ 4 | 1 |
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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 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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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. What are the typical applications of PMIC battery management systems?
BMS is widely used in scenarios such as electric vehicles, portable devices, industrial energy storage systems and medical equipment that require multi-battery unit management to ensure safety and stable performance.
