Built-in circuit elementMCP73831T-2ACI/OTmcp73831
Li-ion charger MCP73831-2
Linear CC/CV charger: I_REG = 1000 V / R_PROG, precharge at 10 % below 66.5 % V_REG, termination at 7.5 % I_REG, tri-state STAT (option AC)
Key data
- Category
- ICs
- Simulation model
- Built-in circuit element
- Manufacturer part number
- MCP73831T-2ACI/OT
- Reference prefix
- U
- Pins
- 5
- Land pattern
- SOT-23-5
Simulation model
Dedicated model built into the simulator for this part (see the description).
- Primitive
- MODEL
Pins 5
| Pin | Name | Use |
|---|---|---|
| 4 | VDDSupply pin | Input 3.75–6 V (USB 5 V): 4.7 µF to GND |
| 5 | PROGAnalog pin | Charge current: resistor to GND, I = 1000 V / R (2 kΩ = 500 mA) |
| 3 | VBATSupply pin | Battery +: 4.7 µF to GND |
| 1 | STATOutput pin | Status output: LED with resistor (low while charging) |
| 2 | VSSGround pin | Ground |
Parameters 5
End-of-charge voltage
VREGDefault4.2 V
-2: 4,20 V, -3: 4,35 V, -4: 4,40 V, -5: 4,50 V
Precharge current I_PREG/I_REG
IPREDefault10 %
Precharge threshold V_PTH/V_REG
VPTHDefault66.5 %
Termination current I_TERM/I_REG
ITERMDefault7.5 %
Recharge threshold V_RTH/V_REG
VRTHDefault96.5 %
PCB
Verified land pattern
SOT-23-5