LTC1998IS6#TRMPBF vs BQ77PL157APWR-4225
| Part Number |
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| Category | PMIC - Battery Management | PMIC - Battery Management |
| Manufacturer | Analog Devices Inc. | Texas Instruments |
| Description | IC BATT MON LI-ION 1CEL TSOT23-6 | IC BATT PROT LI-ION 3-6C 16TSSOP |
| Package | Tape & Reel (TR) | Cut Tape (CT) |
| Series | - | - |
| Interface | - | - |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 110°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | SOT-23-6 Thin, TSOT-23-6 | 16-TSSOP (0.173\", 4.40mm Width) |
| Supplier Device Package | TSOT-23-6 | 16-TSSOP |
| Function | Battery Monitor | Battery Protection |
| Battery Chemistry | Lithium Ion | Lithium Ion/Polymer |
| Fault Protection | - | Over Voltage |
| Number of Cells | 1 | 3 ~ 6 |
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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. 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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3. 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.
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4. How to choose a suitable BMS chip?
When selecting a BMS chip, factors such as the number of batteries, charging and discharging current requirements, voltage range, monitoring accuracy, safety protection functions and temperature management should be considered to ensure that it matches the system requirements.
