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Data Sheet No. PD-6.042D
IR2128
CURRENT SENSING SINGLE CHANNEL DRIVER
Features
n
Floating channel designed for bootstrap operation
Fully operational to +600V
Tolerant to negative transient voltage
dV/dt immune
n
Gate drive supply range from 10 to 20V
n
Undervoltage lockout
n
5V Schmitt-triggered input logic
n
FAULT lead indicates shutdown has occured
n
Output out of phase with input
Product Summary
V
OFFSET
I
O
+/-
V
OUT
V
CSth
t
on/off
(typ.)
600V max.
200 mA / 420 mA
10 - 20V
250 mV
150 & 100 ns
Description
The IR2128 is a high voltage, high speed power
MOSFET and IGBT driver. Proprietary HVIC and
latch immune CMOS technologies enable rugge-
dized monolithic construction. The logic input is
compatible with standard CMOS or LSTTL outputs.
The protection circuity detects over-current in the
driven power transistor and terminates the gate
drive voltage. An open drain FAULT signal is pro-
vided to indicate that an over-current shutdown has
occurred. The output driver features a high pulse
current buffer stage designed for minimum cross-
conduction. The floating channel can be used to
drive an N-channel power MOSFET or IGBT in the
high side or low side configuration which operates
up to 600 volts.
Packages
Typical Connection
V
CC
IN
FAULT
V
CC
IN
FAULT
COM
V
B
HO
CS
V
S
To Order
C
ONTROL
I
NTEGRATED
C
IRCUIT
D
ESIGNERS聮
M
ANUAL
B-129