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TMI8837S
Public Made by Adomby adom
TMI Brushed DC Motor Drivers, 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
markdownTMI8837S
TMI · Brushed DC Motor Drivers · SOP-8
TMI8837S 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 | VM | power_in | Power supply for the driver: connect a 0.1μF ceramic bypass capacitor to GND, and a bulk capacitor of at least 22μF on VM to GND is needed to stabilize VM during motor operation; VM range is 1.8V to 11V. |
| 2 | OUT1 | output | Motor driver output 1 (H-bridge output); voltage is limited to -0.3V to Vin+0.3V per the absolute maximum ratings. |
| 3 | OUT2 | output | Motor driver output 2 (H-bridge output); voltage is limited to -0.3V to Vin+0.3V per the absolute maximum ratings. |
| 4 | GND | power_in | Ground pin. |
| 5 | IN2 | input | PWM input 2 controlling the H-bridge; logic inputs are rated -0.3V to 7V absolute maximum, with thresholds referenced to VCC. |
| 6 | IN1 | input | PWM input 1 controlling the H-bridge; logic inputs are rated -0.3V to 7V absolute maximum, with thresholds referenced to VCC. |
| 7 | EN | input | Chip enable input: logic low puts the device into low-power sleep mode and logic high enables normal operation; it has an internal 100kΩ pull-down to GND and is rated -0.3V to 7V. |
| 8 | VCC | power_in | Power supply for logic inputs, 1.8V to 7V; connect a 0.1μF ceramic bypass capacitor to GND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TMI |
| Package | SOP-8 |
| Category | Motor Driver 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 |
|---|---|---|---|---|---|---|---|
| Recommended Voltage Range VM | VM | 1.8 | 11 | V | 3 | ||
| Operating Junction Temperature Range | TJ | -40 | 125 | °C | 3 | ||
| VM Voltage Range | -0.3 | 11 | V | 2 | |||
| VCC, IN1, IN2, EN Voltages Range | -0.3 | 7 | V | 2 | |||
| OUT1, OUT2 Voltage Range | -0.3 | V | 2 | ||||
| Storage Temperature Range | -50 | 150 | °C | 2 | |||
| Junction Temperature | -40 | 150 | °C | 2 | |||
| VM Voltage Range | VVM | 1.8 | 11 | V | 4 | ||
| VCC Voltage Range | VVCC | 1.8 | 7 | V | 4 | ||
| VM sleep mode supply current | IVMQ | 45 | 95 | nA | VM=5V, VCC=3V, Sleep Mode | 4 | |
| VCC sleep mode supply current | IVCCQ | 17 | 35 | nA | VM=5V, VCC=3V, Sleep Mode | 4 | |
| Input Logic Low Voltage Falling Threshold | VIL_F | 0.25 | 0.4 | x VCC | 4 | ||
| Input Logic High Voltage Rising Threshold | VIH_R | 0.5 | 0.6 | x VCC | 4 | ||
| Input Logic Low Current | IIL | -5 | 5 | μA | 4 | ||
| Output Switch Leakage Current | ILEAK | -200 | 200 | nA | 4 | ||
| Over Current Protection | IOCP | 1.6 | 1.75 | A | 4 | ||
| Output Enable time | T1 | 180 | 265 | ns | VIN=5V, TA = 25°C | 5 | |
| Output Disable time | T2 | 70 | 100 | ns | VIN=5V, TA = 25°C | 5 | |
| Delay Time IN1 low to OUT2 high / IN2 low to OUT1 high | T3 | 140 | 215 | ns | VIN=5V, TA = 25°C | 5 | |
| Delay Time IN2 high to OUT1 low / IN1 high to OUT2 low | T4 | 160 | 240 | ns | VIN=5V, TA = 25°C | 5 | |
| Output rise time | T5 | 60 | 120 | ns | VIN=5V, TA = 25°C | 5 | |
| Output fall time | T6 | 38 | 100 | ns | VIN=5V, TA = 25°C | 5 | |
| VM Supply Current | IVM | 124 | μA | VM=5V, VCC=3V, No PWM | 4 | ||
| VCC Supply Current | IVCC | 180 | μA | VM=5V, VCC=3V, No PWM | 4 | ||
| Input logic Hysteresis | VHYS | 0.1 | x VCC | 4 | |||
| Input Logic High Current | IIH | 40 | μA | 4 | |||
| Input Pull Down Resistor | RIN | 100 | kΩ | 4 | |||
| Output Switch On-Resistance (HS+LS) | RON | 0.65 | Ω | VM=5V, VCC=3V, Iload=800mA | 4 | ||
| VCC UVLO Voltage | VUVLO | 1.7 | V | 4 | |||
| UVLO Hysteresis | VUVLO_HY | 100 | mV | 4 | |||
| Over Current Retry Time | TOCP_RT | 1 | ms | 4 | |||
| Thermal Shutdown Threshold | TSDN | 160 | °C | 4 | |||
| Thermal Shutdown Hysteresis | TSDN_HY | 20 | °C | 4 | |||
| Package Thermal Resistance θJA of SOP8 | θJA | 90 | °C/W | SOP8 package | 2 |
CAD (KiCad official)
- Symbol:
TMI8837S - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
tmi8837s-etched.step/tmi8837s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tmi8837s.step/tmi8837s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TMI datasheet (10 pp, sha256
8ec751b87f560bb8, retrieved 2026-10-19, 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).