# TSC101BILT

**STMicroelectronics** · Current Sense Amplifiers · SOT-23-5

TSC101BILT from STMicroelectronics, in a SOT-23-5. 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 | Out | output | Output voltage, proportional to the magnitude of the sense voltage Vp-Vm; the output is buffered. |
| 2 | Gnd | power_in | Ground line. |
| 3 | Vp | input | Connection for the external sense resistor; the measured current enters the shunt on the Vp side. |
| 4 | Vm | input | Connection for the external sense resistor; the measured current exits the shunt on the Vm side. |
| 5 | Vcc | power_in | Positive power supply line. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Total supply current | ICC |  | 165 | 300 | µA | Vsense = 0 V; Tmin < Tamb < Tmax | 4 |
| Common mode rejection | CMR | 90 | 105 |  | dB | 2.8 V < Vicm < 30 V; Tmin < Tamb < Tmax | 4 |
| Supply voltage rejection | SVR | 90 | 105 |  | dB | 4.0 V < VCC < 24 V; Vsense = 30 mV; Tmin < Tamb < Tmax | 4 |
| Input offset voltage | Vos | -0.9 | 0.2 | 0.9 | mV | Tamb = 25°C | 4 |
| Input offset voltage | Vos | -2.3 | 1.5 | 2.3 | mV | Tmin < Tamb < Tmax | 4 |
| Input offset drift vs. T | dVos/dT |  | -3 |  | µV/°C | Tmin < Tamb < Tmax | 4 |
| Input leakage current | Ilk |  |  | 1 | µA | VCC = 0 V; Tmin < Tamb < Tmax | 4 |
| Input bias current | Iib |  | 5.5 | 8 | µA | Vsense = 0 V; Tmin < Tamb < Tmax | 4 |
| Gain | Av |  | 50 |  | V/V |  | 5 |
| Gain accuracy | ΔAv | -2.5 |  | 2.5 | % | Tamb = 25°C | 5 |
| Gain accuracy | ΔAv | -4.5 |  | 4.5 | % | Tmin < Tamb < Tmax | 5 |
| Output voltage drift vs. T | ΔVout/ΔT |  |  | 0.4 | mV/°C | Tmin < Tamb < Tmax | 5 |
| Output stage load regulation | ΔVout/ΔIout |  | 3 | 4 | mV/mA | -10 mA < Iout < 10 mA; Iout sink or source current | 5 |
| Total output voltage accuracy | ΔVout | -2.5 |  | 2.5 | % | Vsense = 50 mV; Tamb = 25°C | 5 |
| Total output voltage accuracy | ΔVout | -4.5 |  | 4.5 | % | Vsense = 50 mV; Tmin < Tamb < Tmax | 5 |
| Total output voltage accuracy | ΔVout | -3.5 |  | 3.5 | % | Vsense = 100 mV; Tamb = 25°C | 5 |
| Total output voltage accuracy | ΔVout | -5 |  | 5 | % | Vsense = 100 mV; Tmin < Tamb < Tmax | 5 |
| Total output voltage accuracy | ΔVout | -8 |  | 8 | % | Vsense = 20 mV; Tamb = 25°C | 5 |
| Total output voltage accuracy | ΔVout | -11 |  | 11 | % | Vsense = 20 mV; Tmin < Tamb < Tmax | 5 |
| Total output voltage accuracy | ΔVout | -15 |  | 15 | % | Vsense = 10 mV; Tamb = 25°C | 5 |
| Total output voltage accuracy | ΔVout | -20 |  | 20 | % | Vsense = 10 mV; Tmin < Tamb < Tmax | 5 |
| Short-circuit sink current | Isc-sink |  | 30 | 60 | mA | Out connected to VCC; Vsense = -1 V | 5 |
| Short-circuit source current | Isc-source |  | 15 | 26 | mA | Out connected to Gnd; Vsense = 1 V | 5 |
| Output stage high-state saturation voltage | Voh |  | 0.8 | 1 | V | Voh = VCC-Vout; Vsense = 1 V; Iout = 1 mA | 5 |
| Output stage low-state saturation voltage | Vol |  | 50 | 100 | mV | Vsense = -1 V; Iout = 1 mA | 5 |
| Output settling to 1% final value | ts |  | 6 |  | µs | Vsense = 10 mV to 100 mV; Cload = 47 pF | 6 |
| Slew rate | SR | 0.55 | 0.9 |  | V/µs | Vsense = 10 mV to 100 mV | 6 |
| 3dB bandwidth | BW |  | 670 |  | kHz | Cload = 47 pF; Vsense = 100 mV | 6 |
| Total output voltage noise |  |  | 50 |  | nV/√Hz |  | 6 |
| DC supply voltage from Tmin to Tmax | VCC | 4 |  | 24 | V | DC supply voltage from Tmin to Tmax | 3 |
| Operational temperature range (Tmin to Tmax) | Toper | -40 |  | 125 | °C |  | 3 |
| Common mode voltage range | Vicm | 2.8 |  | 30 | V |  | 3 |
| Input pins differential voltage (Vp-Vm) | Vid | -60 |  | 60 | V |  | 3 |
| Input pin voltages (Vp and Vm) | Vi | -0.3 |  | 60 | V | Measured with respect to ground pin | 3 |
| DC supply voltage | VCC | -0.3 |  | 25 | V |  | 3 |
| DC output pin voltage | Vout | -0.3 |  |  | V | Upper limit is VCC | 3 |
| Storage temperature | Tstg | -55 |  | 150 | °C |  | 3 |
| Maximum junction temperature | Tj |  |  | 150 | °C |  | 3 |
| SOT23-5 thermal resistance junction to ambient | Rthja |  | 250 |  | °C/W | SOT23-5 junction to ambient | 3 |
| ESD human body model | HBM |  |  | 2.5 | kV | Human body model | 3 |
| ESD machine model | MM |  |  | 150 | V | Machine model | 3 |
| ESD charged device model | CDM |  |  | 1.5 | kV | Charged device model | 3 |

## CAD (KiCad official)

- Symbol: `TSC101BILT`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `tsc101bilt-etched.step` / `tsc101bilt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tsc101bilt.step` / `tsc101bilt.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/tsc101bilt.pdf) (18 pp, sha256 `509e5d9719d623cb`, retrieved 2026-11-06, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/tsc101bilt-datasheet.pdf)