L I T E - O N T E C H N O L O G Y C O RP O R AT I O N
Property of Lite-on Only
LTV-3120
2.5A Output Current, High CMR,
Gate Drive Optocoupler
Apr 2011
Description
The LTV-3120 optocoupler is ideally suited
for driving power IGBTs and MOSFETs
used in motor control inverter applications
and inverters in power supply system. It
contains a AlGaAs LED optically coupled to
an integrated circuit with a power output
stage. The 2.5A peak output current is
capable of directly driving most IGBTs with
ratings up to 1200 V/100 A. For IGBTs with
higher ratings, the LTV-3120 series can be
used to drive a discrete power stage which
drives the IGBT gate.
Features
•
•
•
•
•
•
•
•
2.5 A maximum peak output current
25 kV/us minimum Common Mode Rejection
(CMR) at VCM = 1500 V
3.8 mA maximum supply current (I
CC
)
Under Voltage Lock-Out protection (UVLO) with
hysteresis
Wide operating range: 15 to 30 Volts (V
CC
)
Guaranteed performance over temperature
-40
o
C ~ +100
o
C.
Offer low power dissipation with R
ON
≤
1
Fast switching speed, 500ns max propagation
delay
Safety approval: UL, cUL, VDE (In process)
The Optocoupler operational parameters
are guaranteed over the temperature range
from -40
o
C ~ +100
o
C.
•
Application
•
•
IGBT/MOSFET gate drive
Uninterruptible power supply (UPS)
Industrial Inverter
Induction heating
Functional Diagram
•
•
NC
1
8
Vcc
Truth Table
LED
OFF
ON
ON
ON
V
CC
-GND
(Turn-ON,
+ve going)
0 - 30 V
0 – 11.5 V
11.5 - 13.5 V
13.5 - 30 V
V
CC
-GND
(Turn-OFF,
-ve going)
0 - 30 V
0 – 10 V
10 - 12 V
12 - 30 V
V
O
Low
Low
Transition
High
Anode
2
7
Vo
Cathode
3
6
Vo
NC
4
Shield
5
GND
A 0.1µF bypass Capacitor must be connected
between Pin 5 and 8. (Note 8)
Part No. :
LTV-3120 series (REV. 1, APR 15,2011 )
Page
1
of
18
4A/131C-DO-SNB
TENAND [ Shenzhen Tenand Technology Co., Ltd. ]
