component
TC4427CPA
Public Made by Adomby adom
Microchip Tech Gate Drivers, PDIP-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
markdownTC4427CPA
Microchip Tech · Gate Drivers · PDIP-8
TC4427CPA from Microchip Tech, in a PDIP-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 specifies no electrical function for this pin. |
| 2 | IN A | input | MOSFET driver input A is a high-impedance, TTL/CMOS compatible input with 300 mV hysteresis, with VIH minimum 2.4 V and VIL maximum 0.8 V. |
| 3 | GND | power_in | Ground is the device return pin and 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 hysteresis, with VIH minimum 2.4 V and VIL maximum 0.8 V. |
| 5 | OUT B | output | MOSFET driver output B is a low-impedance CMOS push-pull output whose pull-up and pull-down devices have equal strength, giving equal rise and fall times. |
| 6 | VDD | power_in | Bias supply input for the MOSFET driver, rated 4.5 V to 18 V with respect to GND, and 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 whose pull-up and pull-down devices have equal strength, giving equal rise and fall times. |
| 8 | NC | unconnected | No connection; the datasheet specifies no electrical function for this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | PDIP-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 | TA=+25°C; Note 2 | 3 | ||
| Logic '0' Low Input Voltage | VIL | 0.8 | V | TA=+25°C | 3 | ||
| Input Current | IIN | -1 | 1 | µA | TA=+25°C; 0V ≤ VIN ≤ VDD | 3 | |
| Low Output Voltage | VOL | 0.025 | V | TA=+25°C; DC Test | 3 | ||
| Output Resistance | RO | 7 | 10 | Ω | TA=+25°C; IOUT = 10 mA, VDD = 18V | 3 | |
| Rise Time | tR | 19 | 30 | ns | TA=+25°C; Figure 4-1 | 3 | |
| Fall Time | tF | 19 | 30 | ns | TA=+25°C; Figure 4-1 | 3 | |
| Delay Time tD1 | tD1 | 20 | 30 | ns | TA=+25°C; Figure 4-1 | 3 | |
| Delay Time tD2 | tD2 | 40 | 50 | ns | TA=+25°C; Figure 4-1 | 3 | |
| Power Supply Current (VIN = 3V, both inputs) | IS | 4.5 | mA | TA=+25°C; VIN = 3V (Both inputs) | 3 | ||
| Power Supply Current (VIN = 0V, both inputs) | IS | 0.4 | mA | TA=+25°C; VIN = 0V (Both inputs) | 3 | ||
| Logic '1' High Input Voltage | VIH | 2.4 | V | Over operating temperature range; Note 2 | 4 | ||
| Logic '0' Low Input Voltage | VIL | 0.8 | V | Over operating temperature range | 4 | ||
| Input Current | IIN | -10 | 10 | µA | Over operating temperature range; 0V ≤ VIN ≤ VDD | 4 | |
| Low Output Voltage | VOL | 0.025 | V | Over operating temperature range; DC Test | 4 | ||
| Output Resistance | RO | 9 | 12 | Ω | Over operating temperature range; IOUT = 10 mA, VDD = 18V | 4 | |
| Rise Time | tR | 40 | ns | Over operating temperature range; Figure 4-1 | 4 | ||
| Fall Time | tF | 40 | ns | Over operating temperature range; Figure 4-1 | 4 | ||
| Delay Time tD1 | tD1 | 40 | ns | Over operating temperature range; Figure 4-1 | 4 | ||
| Delay Time tD2 | tD2 | 60 | ns | Over operating temperature range; Figure 4-1 | 4 | ||
| Power Supply Current (VIN = 3V, both inputs) | IS | 8 | mA | Over operating temperature range; VIN = 3V (Both inputs) | 4 | ||
| Power Supply Current (VIN = 0V, both inputs) | IS | 0.6 | mA | Over operating temperature range; VIN = 0V (Both inputs) | 4 | ||
| Supply Voltage | 22 | V | 3 | ||||
| Storage Temperature Range | TA | -65 | 150 | °C | 3 | ||
| Maximum Junction Temperature | TJ | 150 | °C | 3 | |||
| Supply Voltage (rated range) | VDD | 4.5 | 18 | V | Specified operating supply range | 3 | |
| Specified Temperature Range (C) | TA | 0 | 70 | °C | Grade C (TC4427CPA) | 4 | |
| Thermal Resistance, 8L-PDIP, junction to ambient | JA | 125 | °C/W | 4 | |||
| Peak Output Current | IPK | 1.5 | A | TA=+25°C; VDD = 18V | 3 | ||
| Peak Output Current | IPK | 1.5 | A | Over operating temperature range; VDD = 18V | 4 |
CAD (KiCad official)
- Symbol:
TC4427CPA - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: PDIP-8 (KiCad packages3D, STEP)
- 3D model files:
tc4427cpa-etched.step/tc4427cpa-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tc4427cpa.step/tc4427cpa.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 2026-10-15, 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).