IR2155PBF Datasheet, PDF (1/7 Pages) International Rectifier – SELF-OSCILLATING HALF-BRIDGE DRIVER

Data Sheet No. PD60029 revJ
IR2155&(PbF)
(NOTE: For new designs, we recommend IR’s new products
IR2153 and IR21531)
SELF-OSCILLATING HALF-BRIDGE DRIVER
Features
• ^{Floating channel designed for bootstrap operation}
Product Summary
Fully operational to +600V
Tolerant to negative transient voltage
V_OFFSET
600V max.
dV/dt immune
• ^{Undervoltage lockout}
• ^{Programmable oscillator frequency}
Duty Cycle
I_O+/-
50%
210 mA / 420 mA
f=
1
1.4 × (R_T + 150Ω) × C_T
• ^{Matched propagation delay for both channels}
• ^{Micropower supply startup current of 125 µA typ.}
• ^{Low side output in phase with R}T
• Available in Lead-Free
Description
V_OUT
Deadtime (typ.)
Package
10 - 20V
1.2 µs
The IR2155 is a high voltage, high speed, self-
oscillating power MOSFET and IGBT driver with both
high and low side referenced output channels. Pro-
prietary HVIC and latch immune CMOS technolo-
gies enable ruggedized monolithic construction.
The front end features a programmable oscillator
which is similar to the 555 timer. The output drivers
feature a high pulse current buffer stage and an in-
ternal 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
Typical Connection
8 Lead PDIP
MOSFET or IGBT in the high side configuration that
operates off a high voltage rail up to 600 volts.
up to 600V
V_CC
V_B
R_T
HO
C_T
V_S
COM
LO
(Refer to Lead Assignment diagram for correct pin configuration)
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