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TMI8118S
Public Made by Adomby adom
TMI Motor Driver ICs, SOP-8. 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
markdownTMI8118S
TMI · Motor Driver ICs · SOP-8
TMI8118S from TMI, in a SOP-8. 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 | NC | unconnected | Listed as NC in the SOP8 pin table with no function given; the datasheet states no connection or limit for this pin. |
| 2 | INA | input | Forward-direction logic input with VINH 2.0 V min, VINL 0.8 V max, and an input voltage range of 0 to VDD; do not leave it floating when no signal is applied. |
| 3 | INB | input | Reverse-direction logic input with VINH 2.0 V min, VINL 0.8 V max, and an input voltage range of 0 to VDD; do not leave it floating when no signal is applied. |
| 4 | VDD | power_in | Supply input with an operating range of 1.6 V to 7.2 V and an absolute maximum of 7.2 V; the VDD decoupling capacitors must be placed as close as possible to the VDD and GND pins. |
| 5 | OUTB | output | Reverse-direction H-bridge output with a recommended continuous current of 1.45 A at VDD=5 V (SOP8) and a 2.0 A absolute peak limit; do not connect it directly to GND or VDD. |
| 6 | GND | power_in | Ground reference pin; all voltages are referenced to GND. |
| 7 | GND | power_in | Ground reference pin (second GND pin); all voltages are referenced to GND. |
| 8 | OUTA | output | Forward-direction H-bridge output with a recommended continuous current of 1.45 A at VDD=5 V (SOP8) and a 2.0 A absolute peak limit; do not connect it directly to GND or VDD. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TMI |
| Package | SOP-8 |
| Category | Power Management ICs |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating voltage | Voperation | 1.6 | 7.2 | V | 5 | ||
| Standby current | IDDST | 0.1 | 1 | μA | INA=INB='L', no load | 5 | |
| Operating current | IDD | 0.1 | 0.5 | mA | INA=INB='H' or INA='H' & INB='L' or INA='L' & INB='H', no load | 5 | |
| Input high voltage | VINH | 2 | V | 5 | |||
| Input low voltage | VINL | 0.8 | V | 5 | |||
| Input high-level current | IINH | 3.75 | 20 | μA | VDD = 1.8V, INx = 5V | 5 | |
| On-resistance (SOP8) | Rds(on) | 0.53 | 0.7 | Ω | ILOAD=0.8A, HS_PMOS+LS_NMOS | 5 | |
| Supply voltage range | VDD | 1.6 | 7.2 | V | 4 | ||
| Input signal voltage | VINA/B | 0 | V | max = VDD | 4 | ||
| Forward/reverse output current (SOP8) | IOUT_1 | 0 | 1.45 | A | @VDD=5V | 4 | |
| Supply voltage | VDD | -0.3 | 7.2 | V | 3 | ||
| INA, INB input voltage | VINA/B | -0.3 | V | max = VDD | 3 | ||
| Output peak current (SOP8) | IPEAK | 0 | 2 | A | 3 | ||
| Operating temperature | TOP | -30 | 85 | °C | 3 | ||
| Storage temperature | Tstg | -55 | 150 | °C | 3 | ||
| Junction temperature | TJ | 150 | °C | 3 | |||
| Chip power dissipation (SOP8) | PD | 0.96 | W | 3 | |||
| ESD human body model | VESD | -2000 | 2000 | V | Human Model for all pins, JEDEC JS-001 | 4 | |
| Input low-level current | IINL | 0 | μA | VDD = 1.8V, INx= 0V | 5 | ||
| Internal pull-down resistance | RIN | 1.3 | MΩ | 5 | |||
| Thermal resistance (SOP8) | θJA | 130 | °C/W | 3 |
CAD (KiCad official)
- Symbol:
TMI8118S - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
tmi8118s-etched.step/tmi8118s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tmi8118s.step/tmi8118s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TMI datasheet (11 pp, sha256
acf05761a98700ae, retrieved 2026-10-21, 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).