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MIC4428YM-TR

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Microchip Tech Gate Drive ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MIC4428YM-TR

Microchip Tech · Gate Drive ICs · SOIC-8

MIC4428YM-TR 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 Not internally connected.
2 INA input Control Input A: TTL/CMOS compatible logic input (inverting channel on MIC4428), threshold approx. 1.5V with 100 mV hysteresis, tie unused input to VS or ground.
3 GND power_in Ground.
4 INB input Control Input B: TTL/CMOS compatible logic input (non-inverting channel on MIC4428), threshold approx. 1.5V with 100 mV hysteresis, tie unused input to VS or ground.
5 OUTB output Output B: CMOS totem-pole output with 1.5A peak current, swings within 25 mV of supply or ground.
6 VS power_in Supply Input: +4.5V to +18V (absolute maximum +22V).
7 OUTA output Output A: CMOS totem-pole output with 1.5A peak current, swings within 25 mV of supply or ground.
8 NC unconnected Not internally connected.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-8
Category Power Supply Chip
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
Supply Voltage (absolute maximum) VS 22 V 3
Input Voltage (absolute maximum), upper limit VIN 0.3 V VS + 0.3V (upper limit; lower limit GND, 5V) 3
Input Voltage (absolute maximum), lower limit VIN -5 V GND, 5V 3
Supply Voltage (operating) VS 4.5 18 V Operating ratings 3
Logic 1 Input Voltage VIH 2.4 1.4 V 4.5V ≤ VS ≤ 18V; TA = +25°C 3
Logic 0 Input Voltage VIL 1.1 0.8 V 4.5V ≤ VS ≤ 18V 3
Input Current IIN -1 1 μA 0V ≤ VIN ≤ VS 3
High Output Voltage VOH 0 V VS, 0.025 V min 3
Low Output Voltage VOL 0.025 V 3
Output Resistance (25°C) RO 6 10 Ω IOUT = 10 mA, VS = 18V; TA = +25°C 3
Output Resistance (full temperature range) RO 8 12 Ω IOUT = 10 mA, VS = 18V; full temperature range 3
Latch-Up Protection I 500 mA Withstand Reverse Current (>500) 3
Rise Time (25°C) tr 18 30 ns Test Figure 1-1; TA = +25°C 3
Rise Time (full temperature range) tr 20 40 ns Test Figure 1-1; full temperature range 3
Fall Time (25°C) tf 15 20 ns Test Figure 1-1; TA = +25°C 3
Fall Time (full temperature range) tf 29 40 ns Test Figure 1-1; full temperature range 3
Delay Time (25°C) tD1 17 30 ns Test Figure 1-1; TA = +25°C 3
Delay Time (full temperature range) tD1 19 40 ns Test Figure 1-1; full temperature range 3
Delay Time (25°C) tD2 23 50 ns Test Figure 1-1; TA = +25°C 3
Delay Time (full temperature range) tD2 27 60 ns Test Figure 1-1; full temperature range 3
Pulse Width tPW 400 ns Test Figure 1-1 4
Power Supply Current, inputs high (25°C) IS 0.6 1.4 4.5 mA VINA = VINB = 3.0V; TA = +25°C 4
Power Supply Current, inputs high (full temperature range) IS 1.5 8 mA VINA = VINB = 3.0V; full temperature range 4
Power Supply Current, inputs low (25°C) IS 0.18 0.4 mA VINA = VINB = 0V; TA = +25°C 4
Power Supply Current, inputs low (full temperature range) IS 0.19 0.6 mA VINA = VINB = 0V; full temperature range 4
Peak Output Current IPK 1.5 A 3
Maximum Junction Temperature TJ 150 °C 4
Storage Temperature Range TS -65 150 °C 4
Lead Temperature 300 °C 10 sec. 4
Junction Operating Temperature Range TJ -40 85 °C Y option 4
Thermal Resistance, SOIC 8-Ld, junction to ambient θJA 120 °C/W 4
Thermal Resistance, SOIC 8-Ld, junction to case θJC 75 °C/W 4

CAD (KiCad official)

  • Symbol: MIC4428YM-TR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: mic4428ym-tr-etched.step / mic4428ym-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mic4428ym-tr.step / mic4428ym-tr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip Tech datasheet (20 pp, sha256 2d840005217a3aea, retrieved 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-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).

Datasheet PDF