BQ2018SN-E1TR vs EMB1428QSQ/NOPB
| 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 BATT BAL LI-ION 1-7C 48WQFN |
| Package | 8-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) |
| Series | Power Minder? | Automotive, AEC-Q100 |
| Interface | HDQ | SPI |
| Operating Temperature | -20°C ~ 70°C (TA) | -40°C ~ 125°C (TJ) |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 48-WFQFN Exposed Pad |
| Supplier Device Package | 8-SOIC | 48-WQFN (7x7) |
| Function | Battery Monitor | Battery Balancer |
| Battery Chemistry | Multi-Chemistry | Lithium Ion |
| Number of Cells | 1 ~ 4 | 1 ~ 7 |
| Mounting Type | - | Surface Mount |
| Fault Protection | - | - |
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1. What is the difference between a BMS and a battery charger?
The BMS is responsible for monitoring and managing the safety and health of the battery pack, while the battery charger only provides charging current. The BMS ensures that the battery is not overcharged, over-discharged, and overheated through charge and discharge management.
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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. How does the design of BMS consider different types of batteries?
Different types of batteries (such as lithium-ion, nickel-metal hydride, lead-acid, etc.) have different charging and discharging characteristics. BMS needs to adjust management parameters according to the battery type to ensure the best protection and management of the battery.
