MCHPMCP73832T-2ATI/OT
Overview
The MCP73832T-2ATI/OT is a highly integrated, linear charge management controller designed for single-cell Li-Ion and Li-Polymer batteries. This SOT-23-5 device operates from a 3.75V to 6V input range and handles the constant-current/constant-voltage (CC/CV) charging profile with a programmable current up to 500mA.
Why Choose This Part
It features a tiny SOT-23-5 package that requires only two external capacitors and one resistor to set the charge current. The device includes a status output pin (STAT) for LED or MCU signaling and integrates an on-chip thermal regulator to reduce charge current under high-temperature conditions.
Applications
Key Specifications
Getting Started
To implement this charger, connect the PROG pin to ground through a resistor to set the desired charge current (Ireg = 1000V / Rprog). Ensure a 4.7uF minimum ceramic capacitor is placed on both the VDD and VBAT pins for stability.
MCP7383 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Package | Fault Protection | Battery Pack Voltage | Charge Current - Max | Stock |
|---|---|---|---|---|---|
| MCP73832T-2ATI/OT (this part) | SC-74A, SOT-753 | Over Voltage | 4.2V | 500mA | 17,920 |
| MCP73831T-2ATI/OT | SC-74A, SOT-753 | Over Voltage | 4.2V | 500mA | 27,378 |
| MCP73831T-2ACI/OT | SC-74A, SOT-753 | Over Voltage | 4.2V | 500mA | 50,369 |
| MCP73833-AMI/UN | TFSOP-10 | Over Temperature | 4.2V | 1.1A | 3,385 |
| MCP73831T-4ADI/OT | SC-74A, SOT-753 | Over Voltage | 4.4V | 500mA | 2,664 |
| MCP73831-2ACI/MC | VFDFN-8 | Over Voltage | 4.2V | 500mA | 57,861 |
| MCP73831T-4ADI/MC | VFDFN-8 | Over Voltage | 4.4V | 500mA | 3,708 |
