DESCRIPTION
The TD300 is designed to drive one, two or three Power IGBT/MOS and has driving capability for pulse transformer. So it is perfectly suited to interface control IC with Power Switches in low side or half-bridge configuration.
The typical application shown figure 1 implements the TD300 in a pulse controlled half-bridge drive. Positive and negative pulses are applied to the pulse transformer to charge and discharge the IGBT/MOS gate capacitance. More sophisticated secondary circuits provide low impedance gate drive and short-circuit protection as shown in application note AN461.
On Figure 2, TD300 is implemented as a low side driver in a typical 3 phase motor drive. Figure 3 presents a general purpose low side gate drive.
In both case, the current amplifier provides interfacing between a sense resistor and an A/D converter.

■ THREE POWER IGBT/MOS OR PULSE TRANSFORMER DRIVERS
■ CURRENT SENSE COMPARATOR WITH 1ms INHIBITION TIME FUNCTION
■ INSTANTANEOUS SIGNAL TRANSMISSION
■ 0.6 Amp PER CHANNEL PEAK OUTPUT CURRENT CAPABILITY
■ LOW OUTPUT IMPEDANCE TYP : 7Ω at 200mA
■ CMOS/LSTTL COMPATIBLE INVERTING IN PUT WITH HYSTERESIS
■ 13V TO 16V SINGLE SUPPLY OPERATION
■ UNDER VOLTAGE LOCKOUT (12.5V)
■ CURRENT AMPLIFIER
■ LOW BIAS CURRENT TYP : 1.5mA
■ DURING POWER UP NO RANDOM OUTPUT STATE
■ ENHANCED LATCH-UP IMMUNITY
■ CHANNEL PARALLELING CAPABILITY