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Eval » Historie » Version 10

Maximilian Seesslen, 20.11.2023 19:23

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h1. Eval
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Weisswurstthermometer; mainly power supply;
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e.g. Have thermometer at work
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** Thermocouple-Interface 2*
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** Loud buzzer
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** USB interface for charging
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*** Circtuit from Minutnik-eInk
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** Switch-On/Off button
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** Auto off
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** Should run a week
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** Power CANBus
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How much current draws CANDis? single 18650 cell ok? ca. 3000mAh. 3,6V. 7,1V
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h2. Compare
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* Trelock LS760: 3,7V; 3000 mAh
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h2. Charger IC
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* billigst: TP4056; nur 1 Zelle; bzw. MCP73832
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* Schutz: DW01A
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* MCP73844-840IMS; 2 Zellen, kein Balancer
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BQ40Z50: balancer; 2-4 cells, circuit a little bit complicated; Protection only
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BQ40Z80: balancer; 2-6 cells; circuit a little bit complicated
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BQ4050: 1-4 cells; Protection only
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ISL78714; Up to 14 cells on one chip; NDA for full datasheet
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BQ24753A: no balancing
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bq24735: no balancing
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    BQ7693002DBT
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BQ25887: Charge and ballance 2 cells only.