TD300

` 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 : 7 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

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 inter-face 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 appli-cation 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 inter-facing between a sense resistor and an A/D converter.