Fairchild New HVICs Reduce Power Consumption in a Range of Applications
Fairchild Semiconductor introduced high-voltage gate driver ICs (HVIC) that feature an innovative common-mode dv/dt noise-canceling circuit for achieving excellent noise immunity. The FAN7383, FAN7384 and FAN73832 offer savings of at least 50% PCB area compared to optocoupler or pulse transformer-based solutions.
"Fairchild's latest half-bridge gate drivers offer designers the flexibility to optimize board space and system performance according to their application's specifications," said HK Kim, Fairchild's Vice President, Power Conversion product line. "The feature set of these high-performance HVICs includes 8-DIP, 8-SOP and 14-SOP packages and also options for shut down, dead-time control and short-circuit protection."
Fairchild's HVICs feature advanced level-shift circuitry for high-side driver operation with negative VS swings of up to -9.8V (at VBS = 15V). This results in the devices' unique ability to eliminate an extra diode, unlike other HVICs on the market. In addition, Fairchild's HVICs provide excellent noise immunity by utilizing a common-mode dv/dt noise-canceling circuit. These devices boast low quiescent currents for extremely low power consumption, a particularly important feature in motor applications. They also deliver full functionality at either cold or hot ambient temperatures, which guarantees stable performance in a wide range of applications. To further enhance efficiency, these HVICs feature a floating channel designed for bootstrap operation to +600V. They also increase reliability by providing under-voltage lockout (UVLO) on both channels, and an 11-20V supply range for VCC.
These lead (Pb)-free devices meet or exceed the requirements of the joint IPC/JEDEC standard J-STD-020C and are compliant with European Union regulations now in effect.
