component
TMCS1123A2AQDVGR
Public Made by Adomby adom
Texas Instruments Current Sensors, SOIC-10. 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
markdownTMCS1123A2AQDVGR
Texas Instruments · Current Sensors · SOIC-10
TMCS1123A2AQDVGR from Texas Instruments, in a SOIC-10. 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 | IN+ | input | Positive input current pin; the measured current flows into and out of IN+ and IN- through the isolated high-voltage-side lead frame. |
| 2 | IN- | input | Negative input current pin; the measured current flows into and out of IN+ and IN- through the isolated high-voltage-side lead frame. |
| 3 | GND | power_in | Analog ground for the low-voltage isolated side. |
| 4 | ALERT | output | Sensor diagnostic PWM output, open-drain and active low at 8 kHz, with duty cycle indicating thermal and/or sensor alert state; connect to GND when not used. |
| 5 | VREF | power_in | Zero-current output voltage reference, brought out so that reference error can be removed at system level; leave floating when not used. |
| 6 | VOUT | output | Analog output voltage proportional to input current; the linear output is limited to VS - 100 mV at the top and 100 mV above GND at the bottom. |
| 7 | OC | output | Overcurrent output, open-drain and active low; connect to GND when not used. |
| 8 | VS | power_in | Low-voltage supply, operating from 3 V to 5.5 V and typically decoupled with a 0.1 µF low-ESR capacitor placed close to the VS and GND pins. |
| 9 | VOC | input | Overcurrent threshold input that sets the overcurrent level through VOC = S x IOC / 2.5, with 120 kΩ input impedance; connect to VS when not used. |
| 10 | NC | unconnected | Reserved pin that may be connected to GND or left floating. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-10 |
| Category | Magnetic Sensors |
| Pins | 10 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 最大连续输入电流 | IIN,MAX | 80 | ARMS | TA = 25°C | 8 | ||
| 最大连续输入电流 | IIN,MAX | 44 | ARMS | TA = 125°C | 8 | ||
| 灵敏度误差 | eS | -0.4 | 0.1 | 0.4 | % | 0.05V ≤ VOUT ≤ VS − 0.2V | 8 |
| 灵敏度热漂移 | Sdrift, therm | -50 | 20 | 50 | ppm/°C | 0.05V ≤ VOUT ≤ VS − 0.2V，TA = −40°C 至 125°C | 8 |
| 灵敏度寿命漂移 | Sdrift, life | -0.5 | 0.2 | 0.5 | % | 0.05V ≤ VOUT ≤ VS − 0.2V | 8 |
| 非线性误差 | eNL | -0.1 | 0.1 | % | VOUT = 0.1V 至 VS - 0.1V | 8 | |
| 输出电压失调误差 (TMCS1123x2A) | VOE | -1.5 | 0.3 | 1.5 | mV | VOUT,0A − VREF，IIN = 0A | 8 |
| 输出电压失调热漂移 (TMCS1123x2A) | VOE, drift, therm | -15 | 5 | 15 | µV/°C | VOUT,0A − VREF，IIN = 0A，TA = −40°C 至 125°C | 8 |
| 偏移寿命漂移 | IOS, drift, life | -16 | 8 | 16 | mA | 以输入为基准，(VOUT,0A − VREF) / S，IIN = 0A | 8 |
| 电源抑制比 | PSRR | -45 | 10 | 45 | mA/V | 以输入为基准，VS = 3V 至 5.5V，TA= -40ºC 至 125ºC | 8 |
| 最大容性负载 | CL,MAX | 4.7 | nF | VOUT 至 GND | 8 | ||
| 摆幅 GND 到 GND 的摆幅 | 5 | 10 | mV | 9 | |||
| 基准输出电压误差 (TMCS1123AxA) | -0.15 | 0.02 | 0.15 | % | 9 | ||
| 基准输出电压热漂移 | 8 | 20 | ppm/°C | TA = -40°C 至 125°C | 9 | ||
| 基准输出电压 PSRR | 80 | 150 | µV/V | VS = 3V 至 5.5V | 9 | ||
| 最大基准输出容性负载 | 20 | nF | 9 | ||||
| 过流阈值误差 | -10 | 2 | 10 | % | TA = -40°C 至 125°C | 9 | |
| 过流检测响应时间 (TMCS1123xxA) | 100 | 250 | ns | TMCS1123xxA，IIN 步进 = 120% 的 IOC | 9 | ||
| OC 引脚下拉电压 | OC, OL | 0.07 | 0.2 | V | IOL = 3mA，TA = -40°C 至 125°C | 9 | |
| ALERT 引脚下拉电压 | 0.07 | 0.2 | V | IOL = 3mA，TA = -40°C 至 125°C | 9 | ||
| VS 电源电压 | VS | 3 | 5.5 | V | TA = -40ºC 至 +125ºC | 9 | |
| IQ 静态电流 | IQ | 11 | 14 | mA | TA = 25ºC | 10 | |
| IQ 静态电流 | IQ | 14.5 | mA | TA = -40°C 至 +125°C，VS = 5.5V | 10 |
CAD (KiCad official)
- Symbol:
TMCS1123A2AQDVGR - Footprint:
Package_SO:SOIC-10_3.9x4.9mm_P1mm - 3D model: SOIC-10, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.75 mm nominal SOIC height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
tmcs1123a2aqdvgr-etched.step/tmcs1123a2aqdvgr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tmcs1123a2aqdvgr.step/tmcs1123a2aqdvgr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (48 pp, sha256
79c34d3aec782be0, retrieved 2026-10-20, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).