IR2125SPBF Datasheet, PDF (1/17 Pages) International Rectifier – CURRENT LIMITING SINGLE CHANNEL DRIVER

Data Sheet No. PD60017 Rev.Q
IR2125^{(S) & (PbF)}
CURRENT LIMITING SINGLE CHANNEL DRIVER
Features
• Floating channel designed for bootstrap operation
Fully operational to +500V
Tolerant to negative transient voltage
dV/dt immune
• Gate drive supply range from 12 to 18V
• Undervoltage lockout
• Current detection and limiting loop to limit driven
power transistor current
• Error lead indicates fault conditions and programs
shutdown time
• Output in phase with input
• 2.5V, 5V and 15V input logic compatible
• Also available LEAD-Free
Product Summary
V_OFFSET
500V max.
I_O+/-
1A / 2A
V_OUT
12 - 18V
V_CSth
230 mV
t_on/off (typ.) 150 & 150 ns
Packages
Description
The IR2125(S) is a high voltage, high speed power
MOSFET and IGBT driver with over-current limiting
protection circuitry. Proprietary HVIC and latch im-
mune CMOS technologies enable ruggedized mono-
lithic construction. Logic inputs are compatible with
standard CMOS or LSTTL outputs, down to 2.5V
logic. The output driver features a high pulse current
8-Lead PDIP
16-Lead SOIC
(Wide Body)
buffer stage designed for minimum driver cross-conduction. The protection circuitry detects over-current in the
driven power transistor and limits the gate drive voltage. Cycle by cycle shutdown is programmed by an external
capacitor which directly controls the time interval between detection of the over-current limiting conditions and
latched shutdown. The floating channel can be used to drive an N-channel power MOSFET or IGBT in the high
or low side configuration which operates up to 500 volts.
Typical Connection
up to 500V
V_CC
IN
(Refer to Lead Assignments
for correct pin configura-
tion). This/These diagram(s)
show electrical connections
only. Please refer to our
Application Notes and
DesignTips for proper circuit
board layout.
www.irf.com
V_CC
V_B
IN
HO
ERR
CS
COM
V_S
TO
LOAD
1