IR2154 Datasheet, PDF (1/7 Pages) International Rectifier – SELF-OSCILLATING HALF-BRIDGE DRIVER

Preliminary Data Sheet No. PD60063I
IR2154
SELF-OSCILLATING HALF-BRIDGE DRIVER
Features
• ^{Integrated 600V half-bridge gate driver}
• ^{15.6V zener clamp on Vcc}
• ^{True micropower start up}
• ^{Tighter initial deadtime control}
• ^{Low temperature coefficient deadtime}
• ^{Shutdown feature (1/6th Vcc) on C}T ^pin
• ^{Increased undervoltage lockout Hysteresis (1V)}
• ^{Lower power level-shifting circuit}
• ^{Constant LO, HO pulse widths at startup}
• ^{Lower di/dt gate driver for better noise immunity}
• ^{High side output in phase with RT}
• ^{Excellent latch immunity on all inputs and outputs}
• ^{ESD protection on all leads}
Product Summary
V_OFFSET
Duty Cycle
Tr/Tp
V_clamp
Deadtime (typ.)
600V max.
50%
80/40ns
15.6V
1.2 µs
Packages
Description
The IR2154 is an improved version of the popular
IR2152 gate driver IC, and incorporates a high voltage
half-bridge gate driver with a front end oscillator simi-
lar to the industry standard CMOS 555 timer. The
IR2154 provides more functionality and is easier to use
than previous ICs. A shutdown feature has been de-
signed into the CT pin, so that both gate driver outputs
can be disabled using a low voltage control signal. In
addition, the gate driver output pulse widths are the
same once the rising undervoltage lockout threshold
on VCC has been reached, resulting in a more stable
profile of frequency vs time at startup. Noise immu-
nity has been improved significantly, both by lowering
the peak di/dt of the gate drivers, and by increasing the
undervoltage lockout hysteresis to 1V. Finally, special
attention has been payed to maximizing the latch
immunity of the device, and providing comprehensive
ESD protection on all pins.
8 Lead PDIP
Typical Connection
VCC VB
HO
RT
VS
8 Lead SOIC
600V
MAX
Shutdown
CT
LO
COM