Data Sheet No. PD-6.034G
IR2151
SELF-OSCILLATING HALF-BRIDGE DRIVER
Features
n
Floating channel designed for bootstrap operation
Fully operational to +600V
Tolerant to negative transient voltage
dV/dt immune
n
Undervoltage lockout
n
Programmable oscillator frequency
Product Summary
V
OFFSET
Duty Cycle
I
O
+/-
V
OUT
Deadtime (typ.)
600V max.
50%
100 mA / 210 mA
10 - 20V
1.2 µs
f
=
1
1.4
×
(R
T
+
75
Ω
)
×
C
T
n
Matched propagation delay for both channels
n
Low side output in phase with R
T
Description
The IR2151 is a high voltage, high speed, self-os-
cillating power MOSFET and IGBT driver with both high
and low side referenced output channels. Proprietary
HVIC and latch immune CMOS technologies enable
ruggedized monolithic construction. The front end fea-
tures a programmable oscillator which is similar to the
555 timer. The output drivers feature a high pulse cur-
rent buffer stage and an internal deadtime designed for
minimum driver cross-conduction. Propagation delays
for the two channels are matched to simplify use in
50% duty cycle applications. The floating channel can
be used to drive an N-channel power MOSFET or IGBT
in the high side configuration that operates off a high
voltage rail up to 600 volts.
Packages
Typical Connection
up to 600V
V
CC
R
T
C
T
COM
V
B
HO
V
S
LO
TO
LOAD
C
ONTROL
I
NTEGRATED
C
IRCUIT
D
ESIGNERS
M
ANUAL
B-187