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

Ω 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

CC

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

ND

TD300I

-40

••

1/8