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DESCRIPTION
The TD310 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 TD310 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 n擄 AN461.
On Figure 2, TD310 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.
October 1997
PIN CONNECTIONS
V
CC
+
1
2
3
4
5
6
7
16 UVLO/S tdby
15 OUT A
14 OUT B
13 OUT C
12 GND
11 Sens e -
10 OA input -
9
Sens e +
IN A
IN B
IN C
Enable
Alarm
OA output
OA input + 8
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