The TC4431 is a 1.5A inverting MOSFET driver designed for high-side drive applications, operating from a 4.5V to 30V supply. It features a peak sourcing current of 3A and sinking current of 1.5A, with a low output impedance of 7Ω and drive capability of 1000pF in 25ns. The device includes under-voltage lockout that holds the output low below 7V when the LOCK DIS pin is left floating, and is packaged in 8-pin PDIP, SOIC, or CERDIP. It is latch-up protected against currents exceeding 300mA and ESD protected to 4kV.
The TC4431/4432 are 30V CMOS buffer/drivers suitable for use in high-side driver applications. They will not latch up under any conditions within their power and voltage ratings. They can accept, without damage or logic upset, up to 300mA of reverse current (of either polarity) being forced back into their outputs. All terminals are fully protected against up to 4 kV of electrostatic discharge. Under-voltage lockout circuitry forces the output to a "low" state when the input supply voltage drops below 7V. For operation in lower voltages, disable the lockout and start-up circuit by grounding pin 3(LOCK DIS); for all other situations, pin 3 (LOCK DIS) should be left floating. The under-voltage lockout and start-up circuit gives brown out protection when driving MOSFETS.
Additional Features
| Microchip Technology, Inc. | |
|---|---|
| Product Category | Metal-Oxide Semiconductor FET (MOSFET) |
| Product Number | TC4431 |
| Product Name | 1.5A Inverting High-Speed 30V MOSFET Drivers |
