component
TPS2321IPWR
Public Made by Adomby adom
Texas Instruments Supervisor And Reset ICs, TSSOP-16. Pinout cross-checked by two models against the datasheet, 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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README
markdownTPS2321IPWR
Texas Instruments · Supervisor And Reset ICs · TSSOP-16
TPS2321IPWR from Texas Instruments, in a TSSOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GATE1 | output | Connects to the gate of the channel 1 high-side N-channel MOSFET; the charge pump sources approximately 15 µA to it and generates 9 V to 12 V gate-to-source across the external MOSFET. |
| 2 | GATE2 | output | Connects to the gate of the channel 2 high-side N-channel MOSFET; the charge pump sources approximately 15 µA to it and generates 9 V to 12 V gate-to-source across the external MOSFET. |
| 3 | DGND | power_in | Digital ground. |
| 4 | TIMER | output | A capacitor on this pin sets the circuit-breaker deglitch time; the latch sets when TIMER reaches approximately 0.5 V, and a minimum 50 pF capacitor to ground is strongly recommended in high-power or high-temperature applications. |
| 5 | VREG | power_out | Output of the internal low-dropout regulator (input IN1), less than 5.5 V, for the device; a 0.1 µF ceramic bypass capacitor to ground is recommended. |
| 6 | AGND | power_in | Analog ground, to be connected to DGND as close as possible. |
| 7 | ISENSE2 | input | Channel 2 current-sense input; an overcurrent is assumed if it is pulled below ISET2, and VI(ISENSE2) must never exceed VI(IN2). |
| 8 | ISENSE1 | input | Channel 1 current-sense input; an overcurrent is assumed if it is pulled below ISET1, and VI(ISENSE1) must never exceed VI(IN1). |
| 9 | IN1 | input | Input voltage for channel 1 that also supplies the device operating current; the IN1 channel supports 3 V to 13 V operation. |
| 10 | IN2 | input | Input voltage for channel 2; the IN2 channel supports 3 V to 5.5 V operation. |
| 11 | ISET2 | input | Sets the channel 2 circuit-breaker threshold through an external resistor connected to IN2; an internal source draws 50 µA from this pin. |
| 12 | ISET1 | input | Sets the channel 1 circuit-breaker threshold through an external resistor connected to IN1; an internal source draws 50 µA from this pin. |
| 13 | FAULT | output | Open-drain overcurrent fault flag output that is pulled low when an overcurrent condition latches a channel off. |
| 14 | ENABLE | input | Active-high enable input on TPS2321 (active-low on TPS2320); when pulled low for more than 50 µs the gate is discharged at a controlled rate and the output bulk capacitance is discharged. |
| 15 | DISCH2 | output | Discharge transistor for channel 2, connected to the source of the channel 2 external MOSFET; it discharges the load when the MOSFET is disabled and serves as the reference for the gate clamp. |
| 16 | DISCH1 | output | Discharge transistor for channel 1, connected to the source of the channel 1 external MOSFET; it discharges the load when the MOSFET is disabled and serves as the reference for the gate clamp. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Power Management (PMIC) |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
TPS2321IPWR - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
tps2321ipwr-etched.step/tps2321ipwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps2321ipwr.step/tps2321ipwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (29 pp, sha256
0c4eed4165426632, retrieved 2026-10-11, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).