component
TC4427COA
Public Made by Adomby adom
Microchip Tech Gate Drivers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownTC4427COA
Microchip Tech · Gate Drivers · SOIC-8
TC4427COA from Microchip Tech, in a SOIC-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 | No connection; the datasheet lists this pin as not connected internally. |
| 2 | IN A | input | MOSFET driver input A is a high-impedance TTL/CMOS compatible input with 300 mV of hysteresis, and any unused driver input must be grounded. |
| 3 | GND | power_in | Device return pin that should have a low-impedance connection to the bias supply return, since high peak current flows out of it when the capacitive load is discharged. |
| 4 | IN B | input | MOSFET driver input B is a high-impedance TTL/CMOS compatible input with 300 mV of hysteresis, and any unused driver input must be grounded. |
| 5 | OUT B | output | MOSFET driver output B is a low-impedance CMOS push-pull output with pull-up and pull-down devices of equal strength. |
| 6 | VDD | power_in | Bias supply input rated for 4.5V to 18V with respect to GND, which should be bypassed with local ceramic capacitors (1.0 µF suggested). |
| 7 | OUT A | output | MOSFET driver output A is a low-impedance CMOS push-pull output with pull-up and pull-down devices of equal strength. |
| 8 | NC | unconnected | No connection; the datasheet lists this pin as not connected internally. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-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 |
|---|---|---|---|---|---|---|---|
| Logic '1', High Input Voltage | VIH | 2.4 | V | Note 2 | 3 | ||
| Logic '0', Low Input Voltage | VIL | 0.8 | V | 3 | |||
| Input Current | IIN | -1 | 1 | µA | 0V ≤ VIN ≤ VDD | 3 | |
| Low Output Voltage | VOL | 0.025 | V | DC Test | 3 | ||
| Output Resistance | RO | 7 | 10 | Ω | IOUT = 10 mA, VDD = 18V | 3 | |
| Rise Time | tR | 19 | 30 | ns | Figure 4-1 | 3 | |
| Fall Time | tF | 19 | 30 | ns | Figure 4-1 | 3 | |
| Delay Time tD1 | tD1 | 20 | 30 | ns | Figure 4-1 | 3 | |
| Delay Time tD2 | tD2 | 40 | 50 | ns | Figure 4-1 | 3 | |
| Power Supply Current (logic 0 input) | IS | 4.5 | mA | VIN = 3V (Both inputs) | 3 | ||
| Power Supply Current (logic 1 input) | IS | 0.4 | mA | VIN = 0V (Both inputs) | 3 | ||
| Logic '1', High Input Voltage (over operating temperature range) | VIH | 2.4 | V | Note 2 | 4 | ||
| Logic '0', Low Input Voltage (over operating temperature range) | VIL | 0.8 | V | 4 | |||
| Input Current (over operating temperature range) | IIN | -10 | 10 | µA | 0V ≤ VIN ≤ VDD | 4 | |
| Output Resistance (over operating temperature range) | RO | 9 | 12 | Ω | IOUT = 10 mA, VDD = 18V | 4 | |
| Rise Time (over operating temperature range) | tR | 40 | ns | Figure 4-1 | 4 | ||
| Fall Time (over operating temperature range) | tF | 40 | ns | Figure 4-1 | 4 | ||
| Delay Time tD1 (over operating temperature range) | tD1 | 40 | ns | Figure 4-1 | 4 | ||
| Delay Time tD2 (over operating temperature range) | tD2 | 60 | ns | Figure 4-1 | 4 | ||
| Power Supply Current (logic 0 input, over operating temperature range) | IS | 8 | mA | VIN = 3V (Both inputs) | 4 | ||
| Power Supply Current (logic 1 input, over operating temperature range) | IS | 0.6 | mA | VIN = 0V (Both inputs) | 4 | ||
| Supply Voltage | 22 | V | 3 | ||||
| Storage Temperature Range | TA | -65 | 150 | °C | 4 | ||
| Maximum Junction Temperature | TJ | 150 | °C | 4 | |||
| Specified Temperature Range (C) | TA | 0 | 70 | °C | 4 | ||
| Supply Input Voltage (VDD) | VDD | 4.5 | 18 | V | 9 | ||
| Thermal Resistance, 8L-SOIC (junction to ambient) | JA | 155 | °C/W | 4 | |||
| Peak Output Current | IPK | 1.5 | A | VDD = 18V | 3 | ||
| Peak Output Current (over operating temperature range) | IPK | 1.5 | A | VDD = 18V | 4 |
CAD (KiCad official)
- Symbol:
TC4427COA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
tc4427coa-etched.step/tc4427coa-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tc4427coa.step/tc4427coa.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (28 pp, sha256
92aa2e8a1bda9e95, 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).