TD352
Advanced IGBT/MOSFET driver
Features
■
■
■
■
■
■
1.7 A sink / 1.3 A source (typ) current capability
Active Miller clamp feature
Desaturation detection
Adjustable turn-on delay
UVLO protection
2k V ESD protection
SO-8
Applications
■
■
■
1200 V 3-phase inverter
Motor control systems
UPS
Description
This device is an advanced gate driver for IGBTs
and power MOSFETs. Control and protection
functions are included and allow the design of
high reliability systems.
The innovative active Miller clamp function
eliminates the need for negative gate drive in
most applications and allows the use of a simple
bootstrap supply for the high side driver.
The TD352 includes an adjustable turn-on delay.
This feature can be used to implement reliable
deadtime between high and low sides of a half
bridge. An external resistor and capacitor are
used to provide accurate timing.
Table 1.
Device summary
Temperature range
-40°C, +125°C
TD352IDT
Package
SO-8
Tape and reel
Packaging
Tube
Order codes
TD352ID
June 2011
Doc ID 11095 Rev 2
1/18
www.st.com
18
Contents
TD352
Contents
1
2
3
4
5
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.1
5.2
5.3
5.4
5.5
5.6
5.7
Input stage
................................................ 8
........................................... 8
.......................................... 8
Voltage reference
Active Miller clamp
Turn-on delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Desaturation protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Output stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Undervoltage protection
...................................... 9
6
7
8
9
10
Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Typical performance curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Application diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2/18
Doc ID 11095 Rev 2
TD352
Block diagram
1
Block diagram
Figure 1.
TD352 block diagram
Doc ID 11095 Rev 2
3/18
Pin connections
TD352
2
Pin connections
Figure 2.
Pin connections (top view)
Table 2.
Pin n°
IN
VREF
CD
DESAT
CLAMP
VL
OUT
VH
Pin description
Name
1
2
3
4
5
6
7
8
Type
Analog input
Analog output
Timing capacitor
Analog input
Analog output
Power supply
Analog output
Power supply
Function
Input
+5 V reference voltage
Turn on delay
Desaturation protection
Miller clamp
Signal ground
Gate drive output
Positive supply
4/18
Doc ID 11095 Rev 2
TD352
Absolute maximum ratings
3
Table 3.
Symbol
VHL
V
out
V
other
P
d
T
stg
T
j
R
thJA
ESD
Absolute maximum ratings
Absolute maximum ratings
Parameter
Maximum supply voltage (VH - VL)
Voltage on OUT, CLAMP, DESAT pins
Voltage on other pins (IN, CD, VREF)
Power dissipation
Storage temperature
Maximum junction temperature
Thermal resistance junction-ambient
Electrostatic discharge (HBM)
Value
28
VL-0.3 to VH+0.3
-0.3 to 7
500
-55 to 150
150
150
2
Unit
V
V
V
mW
°C
°C
°C/W
kV
Table 4.
Symbol
VH
T
oper
Operating conditions
Parameter
Positive supply voltage vs. VL
Operating free air temperature range
Value
UVLO to 26
-40 to 125
Unit
V
°C
Doc ID 11095 Rev 2
5/18
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