component
MCP73833T-AMI
Public Made by Adomby adom
Microchip Battery Management, DFN-10-EP(3x3). Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownMCP73833T-AMI
Microchip · Battery Management · DFN-10-EP(3x3)
MCP73833T-AMI from Microchip, in a DFN-10-EP(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD | power_in | Battery management input supply. Recommended supply of [VREG(typ) + 0.3 V] up to 6 V (absolute max 7.0 V). Bypass to VSS with a minimum of 1 uF. Pins 1 and 2 are internally tied together and both must be connected. |
| 2 | VDD | power_in | Battery management input supply (paralleled with pin 1). Both VDD pins must be connected to the input supply. |
| 3 | STAT1 | output | Charge status output 1. Open-drain output for LED (through a series resistor, typ. 470 ohm) or MCU logic input. Sink current 15 mA typ, 25 mA max; VOL <= 0.4 V at ISINK = 4 mA. Low during preconditioning / fast charge / constant voltage; Hi-Z in standby/shutdown/charge-complete. |
| 4 | STAT2 | output | Charge status output 2. Open-drain output for LED or MCU logic input. Combined with STAT1 and PG encodes the charger state per the state flow chart (e.g. STAT2 = LOW only in charge-complete). |
| 5 | VSS | power_in | Battery management 0 V reference. Connect to negative terminal of the battery and the input supply return. Exposed pad on DFN variant is internally tied to VSS. |
| 6 | PROG | input | Current regulation set and charge control enable. Program the fast-charge current via a resistor from PROG to VSS using IREG = 1000 V / RPROG (RPROG in kohm). Valid range 1 kohm to 20 kohm (100 mA to 1 A). Floating this pin (>200 kohm) disables the charger and enters standby. |
| 7 | PG | output | Power Good indication (MCP73833 variant). Pseudo open-drain output; can sink current but has an internal diode path back to VDD, so it must only be pulled up to VDD (not a higher rail). Asserted low whenever VDD is above UVLO and greater than VBAT. On the MCP73834 variant this pin is the Timer Enable (TE) input instead. |
| 8 | THERM | input | Thermistor input for cell temperature monitoring. Sources ~50 uA (47-53 uA) into an external NTC (nominally 10 kohm) tied to VSS. Comparators trip at VT1 = 1.23 V (upper, high temp) and VT2 = 0.25 V (lower, low temp) versus VTHERM. Tie to VSS through a resistor if unused (comparators disabled by pulling above (VDD-0.1 V) enters System Test / LDO mode). |
| 9 | VBAT | power_out | Battery charge control output (drain of the internal P-channel MOSFET pass device, RDSON ~300 mohm). Connect to the positive terminal of the Li-Ion/Li-Polymer cell. Pins 9 and 10 are internally paralleled and both must be connected. Bypass to VSS with a minimum of 1 uF for loop stability when the battery is disconnected. |
| 10 | VBAT | power_out | Battery charge control output (paralleled with pin 9). Both VBAT pins must be connected to the cell positive terminal. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip |
| Package | DFN-10-EP(3x3) |
| Category | PMIC |
| Pins | 10 |
Ordering variants
Same part, different packaging or reel option.
MCP73833T-AMIMCP73833T-AMIMF
CAD (KiCad official)
- Symbol:
MCP73833T-AMI - Footprint:
Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.55x2.48mm - 3D model: DFN-10-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
mcp73833t-ami-etched.step/mcp73833t-ami-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mcp73833t-ami.step/mcp73833t-ami.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
mcp73833t-ami.step |
126 KB | You want the bare part, or you mark your own boards. |
mcp73833t-ami-etched.step |
2.3 MB | You want the part with MCP73833T-AMI already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 559 faces against 74 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip datasheet (32 pp, sha256
6b4bfb0f376ed244, retrieved 2026-08-17, tier: manufacturer) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).