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TOLL SIT1051MA Secondary Protection IC for 2 to 5 Cell Li-ion Battery Packs
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pTOLL SIT1051MA — secondary protection ic for li-ion battery packs, MSOP8, 2 V./p
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TOLL SIT1051MA Secondary Protection IC for 2 to 5 Cell Li-ion Battery Packs
The SIT1051MA from TOLL acts as a secondary protection ic for li-ion battery packs, comes in MSOP8.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Manufacturer | TOLL Microelectronics (Tuoer Micro) |
| Part number | SIT1051MA |
| Device type | Secondary protection IC for Li-ion battery packs |
| Product line | Battery Management ICs |
| Input / supply voltage | 2 to 5 cells in series |
| Package | MSOP8 |
| Overcharge detection | VOV 4.100 V to 4.500 V, 25 mV per step |
| Detection accuracy | plus/minus 50 mV |
| Supply current | 1 uA typical / 3 uA max at VCELL 3.5 V |
| Overcharge delay | Built in |
| Datasheet | SIT1051_DS_CN_V1.4 |
Practical Notes
- Check the reference design before finalising external components.
- Thermal pad layout drives continuous current capability.
- Confirm the suffix — package and grade change between variants.
- Datasheet limits apply at the stated test conditions; derate for your ambient.
- Protection thresholds are set by external resistors in most designs.
Application Scenarios
Common installation contexts include:
- battery
- EV
- charging
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