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TD300
15V TRIPLE IGBT/MOS DRIVER
June 1998
N
DIP14
(Plastic Package)
.
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
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 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.
D
SO14
(Plastic Micropackage)
Input A
V
+
Output C
1
2
3
4
8
5
6
7
9
10
11
12
13
14
OA input
N.C.
Output B
Output A
GND
Sense input
OA Output
Input B
Input C
Enable
Alarm
PIN CONNECTIONS
ORDER CODES
Part Number
Temperature
Range
Package
N
D
TD300I
-40
o
C, +105
o
C
1/8