component
TMI8549
Public Made by Adomby adom
TMI Motor Driver ICs, SSOP-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
markdownTMI8549
TMI · Motor Driver ICs · SSOP-10
TMI8549 from TMI, in a SSOP-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 | VCC | power_in | Power-supply voltage pin (4V to 16V operating, 20V absolute max); connect a stabilization capacitor to GND. |
| 2 | ENA | input | Motor drive control enable input; L (0V to 0.4V) is stand-by mode with 0A current, H (1.5V to 5.5V) enables outputs, PWM can be input, built-in 100kΩ pull-down. |
| 3 | IN1 | input | Drive control input for OUT1 and OUT2; PWM can be input, built-in 100kΩ pull-down. |
| 4 | IN2 | input | Drive control input for OUT3 and OUT4; PWM can be input, built-in 100kΩ pull-down. |
| 5 | NC | unconnected | Not connected. |
| 6 | GND | power_in | Ground pin. |
| 7 | OUT4 | output | Driving output pin; the motor coil is connected between this pin and OUT3. |
| 8 | OUT3 | output | Driving output pin; the motor coil is connected between this pin and OUT4. |
| 9 | OUT2 | output | Driving output pin; the motor coil is connected between this pin and OUT1. |
| 10 | OUT1 | output | Driving output pin; the motor coil is connected between this pin and OUT2. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TMI |
| Package | SSOP-10 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum power supply voltage | VCC max | -0.3 | 20 | V | 2 | ||
| Output impression voltage | VOUT1-4 | -0.3 | 20 | V | 2 | ||
| Control input impression voltage | VIN1, VIN2, VENA | -0.3 | 6 | V | 2 | ||
| GND pin outflow current per channel | IGND | 1 | A | 2 | |||
| Allowable power dissipation | PD max | 1 | W | 2 | |||
| Operating temperature | Topr | -40 | 85 | °C | 2 | ||
| Storage temperature | Tstg | -40 | 165 | °C | 2 | ||
| ESD Human Body Model | VESD | -2000 | 2000 | V | all pins, JEDEC JS-001 | 3 | |
| Power supply voltage | VCC | 4 | 16 | V | 3 | ||
| Input H level voltage | VINH | 1.5 | 5.5 | V | VENA, VIN1, VIN2 | 3 | |
| Input L level voltage | VINL | 0 | 0.4 | V | VENA, VIN1, VIN2 | 3 | |
| Standby supply current | ICC0 | 1 | µA | Standby mode ENA=L, VCC=12V, TA=25°C | 4 | ||
| Supply current | ICC1 | 1.1 | 1.52 | mA | ENA=H, VCC=12V, TA=25°C | 4 | |
| Input current | IIN | 40 | 50 | 64 | µA | VIN=5V | 4 |
| Thermal shutdown temperature | Ttsd | 160 | °C | Design certification | 4 | ||
| Thermal shutdown hysteresis | △Ttsd | 40 | °C | Design certification | 4 | ||
| Low voltage protection operation voltage | VthVCC | 3.75 | 3.79 | 3.83 | V | 4 | |
| Low voltage protection release voltage | Vthret | 3.51 | 3.54 | 3.58 | V | 4 | |
| Output ON resistance (upper and lower total) | RDSON | 0.7 | 0.83 | 0.96 | Ω | IOUT=1.0A | 4 |
| Output leak current | IOleak | 0 | 10 | µA | VO=16V | 4 | |
| Over-current protection | IOCP | 1.6 | A | 4 | |||
| Diode forward voltage | VD | 1.1 | V | ID=1.0A | 4 | ||
| IN1/IN2 and ENA high level threshold | INxH, ENAH | 1.5 | 5.5 | V | 4 | ||
| IN1/IN2 and ENA low level threshold | INxL, ENAL | 0.4 | V | 4 |
CAD (KiCad official)
- Symbol:
TMI8549 - Footprint:
Package_SO:SSOP-10_3.9x4.9mm_P1.00mm - 3D model: SSOP-10 (KiCad packages3D, STEP)
- 3D model files:
tmi8549-etched.step/tmi8549-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tmi8549.step/tmi8549.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TMI datasheet (8 pp, sha256
cb049072f743abde, retrieved 2026-10-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).