High Temperature, 2.5 A
Output Current, Gate Drive
Optocoupler
FOD3125
Description
The FOD3125 is a 2.5 A Output Current Gate Drive Optocoupler,
capable of driving most medium IGBTs or MOSFETs across extended
industrial temperature range, −40°C to 125°C. It is ideally suited for
fast switching driving of power IGBTs and MOSFETs used in motor
control inverter applications, and high performance power system.
It utilizes ON Semiconductor patented coplanar packaging
www.onsemi.com
8
8
®
technology, Optoplanar , and optimized IC design to achieve high
1
1
noise immunity, characterized by high common mode rejection.
It consists of a gallium aluminum arsenide (AlGaAs) light emitting
diode optically coupled to an integrated circuit with a high−speed
driver for push−pull MOSFET output stage.
PDIP8 GW
CASE 709AD
PDIP8 GW
CASE 709AC
Features
8
8
• Extended Industrial Temperate Range, −40°C to 125°C
• High Noise Immunity characterized by 35 kV/ms minimum Common
Mode Rejection
1
1
PDIP8 6.6x3.81, 2.54P PDIP8 9.655x6.6, 2.54P
CASE 646BW CASE 646CQ
• 2.5 A Peak Output Current Driving Capability for Most 1200 V/
20 A IGBT
• Use of P−channel MOSFETs at Output Stage Enables Output Voltage
Swing close to the Supply Rail
FUNCTIONAL BLOCK DIAGRAM
• Wide Supply Voltage Range from 15 V to 30 V
• Fast Switching Speed
1
2
3
4
8
NC
ANODE
CATHODE
NC
V
V
V
V
DD
♦ 400 ns maximum Propagation Delay
♦ 100 ns maximum Pulse Width Distortion
• Under Voltage LockOut (UVLO) with Hysteresis
7
6
5
O2
O1
SS
• Safety and Regulatory Approvals
♦ UL1577, 5000 V
for 1 minute
RMS
♦ DIN EN/IEC60747−5−5 (pending approval)
• >8.0 mm Clearance and Creepage Distance (Option ‘T’ or ‘TS’)
• 1,414 V Peak Working Insulation Voltage (VIORM)
• This is a Pb−Free Device
Applications
Note: A 0.1 mF bypass capacitor must be
• Industrial Inverter
connected between pins 5 and 8.
• Uninterruptible Power Supply
• Induction Heating
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
• Isolated IGBT/Power MOSFET Gate Drive
Table 1. TRUTH TABLE
LED
Off
V
O
V
DD
– V “Positive Going” (Turn−on)
V
DD
– V “Negative Going” (Turn−off)
SS
SS
0 V to 30 V
0 V to 11 V
11 V to 14 V
14 V to 30 V
0 V to 30 V
0 V to 9.7 V
Low
Low
On
On
On
9.7 V to 12.7 V
12.7 V to 30 V
Transition
High
© Semiconductor Components Industries, LLC, 2018
1
Publication Order Number:
March, 2020 − Rev. 2
FOD3125/D