component
COS4428SR
Public Made by Adomby adom
COSINE Gate Drivers, SOP-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
markdownCOS4428SR
COSINE · Gate Drivers · SOP-8
COS4428SR from COSINE, 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 | NC | unconnected | No connection; the datasheet lists this pin as not connected. |
| 2 | IN A | input | MOSFET driver Input A is a high-impedance, TTL/CMOS compatible input with a high threshold of 1.8 V, a low threshold of 0.7 V, 0.3 V hysteresis, and input current of ±1 µA for 0 V ≤ VIN ≤ VDD. |
| 3 | GND | power_in | Ground is the device return pin and should have a low-impedance connection to the bias supply source return, since high peak current flows out of it when the capacitive load discharges; the inputs withstand negative voltages down to GND-5 V. |
| 4 | IN B | input | MOSFET driver Input B is a high-impedance, TTL/CMOS compatible input with a high threshold of 1.8 V, a low threshold of 0.7 V, 0.3 V hysteresis, and input current of ±1 µA for 0 V ≤ VIN ≤ VDD. |
| 5 | OUT B | output | Channel B is a low-impedance CMOS push-pull output with 2.0 Ω typical pull-up and pull-down resistance, 1.5 A peak output current and ±200 mA continuous current; on the COS4428 it is in phase with input A. |
| 6 | VDD | power_in | Bias supply for the MOSFET driver, rated for 4.5 V to 25 V with respect to GND, and should be bypassed with local ceramic capacitors (1.0 µF suggested); the absolute maximum DC supply voltage is 26 V. |
| 7 | OUT A | output | Channel A is a low-impedance CMOS push-pull output with 2.0 Ω typical pull-up and pull-down resistance, 1.5 A peak output current and ±200 mA continuous current; on the COS4428 it is out of phase with input A. |
| 8 | NC | unconnected | No connection; the datasheet lists this pin as not connected. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | COSINE |
| 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 |
|---|---|---|---|---|---|---|---|
| DC supply voltage | Vs | 26 | V | 4 | |||
| Operating junction temperature | -40 | 125 | °C | 4 | |||
| Storage temperature | -55 | 150 | °C | 4 | |||
| Maximum input voltage | -5 | 0.3 | V | Printed as GND-5 (min, referenced to GND) and VDD+0.3 (max, referenced to VDD) | 4 | ||
| Combined peak output current | 4 | A | 4 | ||||
| DC Supply Voltage | 4.5 | 25 | V | 4 | |||
| Operating ambient temperature | -40 | 85 | °C | 4 | |||
| Operating Voltage Range | VDD | 4.5 | 25 | V | 5 | ||
| Input Signal High Threshold | VIH | 1.8 | V | 5 | |||
| Input Signal Low Threshold | VIL | 0.7 | V | 5 | |||
| Input Current | IIN | -1 | 1 | µA | 0V ≤ VIN ≤ VDD | 5 | |
| Pull-Up Resistance | ROH | 2 | Ω | Source Current = 10mA | 5 | ||
| Pull-Down Resistance | ROL | 2 | Ω | Sink Current = -10mA | 5 | ||
| Continuous Output Current | IDC | -200 | 200 | mA | Source / Sink Current | 5 | |
| Power Supply Current | ICC | 0.9 | mA | VINA=VINB=3V | 5 | ||
| Power Supply Current | ICC | 0.5 | mA | VINA=VINB=0V | 5 | ||
| Under-Voltage Lockout ON Threshold | 3.6 | 4 | V | 5 | |||
| Under-Voltage Lockout Hysteresis | 0.5 | V | 5 | ||||
| Peak Output Current (source) | IPK | 1.5 | A | Source Current, f=1kHz, CL=1000pF | 5 | ||
| Peak Output Current (sink) | IPK | -1.5 | A | Sink Current, f=1kHz, CL=1000pF | 5 | ||
| Input Signal Hysteresis | VHYS | 0.3 | V | 5 | |||
| Rise Time | tR | 11 | ns | CL =1000pF, See Figure 3.1 | 5 | ||
| Fall Time | tF | 11 | ns | CL =1000pF, See Figure 3.1 | 5 | ||
| Turn-On Delay Time | tD1 | 34 | ns | Non-inverting Input | 5 | ||
| Turn-On Delay Time | tD1 | 44 | ns | Inverting Input | 5 | ||
| Turn-Off Delay Time | tD2 | 34 | ns | Non-inverting Input | 5 | ||
| Turn-Off Delay Time | tD2 | 44 | ns | Inverting Input | 5 | ||
| Thermal Shutdown Threshold | 150 | °C | 6 | ||||
| Thermal Shutdown Threshold Hysteresis | 25 | °C | 6 | ||||
| Package Thermal Resistance (SOP8) | 155 | °C/W | SOP8 package | 4 |
CAD (KiCad official)
- Symbol:
COS4428SR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
cos4428sr-etched.step/cos4428sr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cos4428sr.step/cos4428sr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: COSINE datasheet (8 pp, sha256
6aa85dcb0144f439, 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).