COS4422SR

The COS4421/4422 are single channel, high-current low-side gate drivers capable of driving large MOSFET, SiC, GaN and IGBTs. Unique circuit design enables high speed operation capable of delivering peak currents of 9A into 10,000pF capacitive loads. Improved speed and drive capability are enhanced by matched rise and fall delay times. Dynamic switching losses are minimized with non-overlapped drive techniques. These devices are highly latch-up resistant within their power and voltage ratings. They are not subject to damage when up to 5V of noise spiking (of either polarity) occurs on the ground pin. The COS4421/4422 inputs can be driven directly from either TTL or CMOS (1.6V to 25V). In addition, the 300 mV of built-in hysteresis provides noise immunity and allows the device to be driven from slow rising or falling waveforms. Output is held LOW if Input is unbiased or floating.

Applications

• Driving the large MOSFET, SiC and IGBT
• Line Drivers for Heavily Loaded Lines
• Local Power ON/OFF Switch
• Motor and Solenoid Driver
• Switch Mode Power Supplies

Key features

• High Peak Output Current: 9A
• High Continuous Output Current: 2A
• Wide Supply Voltage Operating Range: 4.5V to 25V
• High Capacitive Load Drive Capability 10nF in 35ns (typical)
• Short Delay Times: 58ns (typical)
• Matched Rise/Fall Times
• Low Output Impedance: 0.5 Ω (typical)
• Low Supply Current
• Over-temperature Protection
• Under-voltage Lockout (UVLO)
• Non-overlapped Drive Tech
• Input withstands negative inputs up to 5V
• Available in Green SOP8, DIP8 and DFN8 Packages