Date: 18/11/2010

3A MOSFET/IGBT gate driver optocoupler from Fairchild Semiconductor

Fairchild Semiconductor has announced that it has developed the FOD3184 – a 3A output current, high speed MOSFET/IGBT gate driver optocoupler with a nearly 50% reduction in propagation delay times and 13% lower power consumption compared to the popular FOD3120 gate driver. The device is ideal for high frequency driving of power MOSFETs and IGBTs at frequencies up to 250kHz in applications such as solar inverters, uninterruptible power supplies (UPS) and motor drives.

The FOD3184 consists of an aluminum gallium arsenide (AIGaAs) light emitting diode optically coupled to a CMOS detector with PMOS and NMOS output power transistors integrated into the circuit power stage. The PMOS pull-up transistor has low RDS(ON) for reduced internal power consumption and near rail-to-rail output voltage swing. The device also offers high noise immunity, characterized by a minimum 35kV/µs common mode rejection (CMR) – ideal for noisy industrial applications.

The key features and specs of this device includes:
VCC operating range of 15V to 30V
Operating temperature range of -40ºC to +100ºC.
Features an under-voltage lockout protection (UVLO) with hysteresis, optimized for driving IGBTs.
8-pin dual in-line housing Offers >8.0mm creepage and clearance distances
Packaging is compatible with 260ºC reflow processes for lead-free solder compliance. The 1,414V working voltage rating (VIORM) allows the device to drive 1,200V loads with reliable long term insulation performance.

Price: Each US$1.51 for 1K pieces

Availability: Sampling now