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IR2154IRN/a4avaiHalf Bridge Driver, HO In Phase with RT, Programmable Oscillating Frequency, 1.2us Deadtime in a 8-pin DIP package
IR2154SIRN/a1455avaiHalf Bridge Driver, HO In Phase with RT, Programmable Oscillating Frequency, 1.2us Deadtime in a 8-lead SOIC package


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IR2154-IR2154S
Half Bridge Driver, HO In Phase with RT, Programmable Oscillating Frequency, 1.2us Deadtime in a 8-pin DIP package
International
TGiR Rectifier
Preliminary Data Sheet No. P0600631
IIRZ1|54
SELF-OSCILLATING HALF-BRIDGE DRIVER
Features
q Integrated 600V half-bridge gate driver
q 15.6V zener clamp on Vcc
q True micropower start up
a Tighter initial deadtime control
q Low temperature coefficient deadtime
o Shutdown feature (1/6th Vcc) on CT pin
q Increased undervoltage lockout Hysteresis (1V)
q Lower power level-shifting circuit
q Constant LO, HO pulse widths at startup
q Lower di/dt gate driver for better noise immunity
q High side output in phase with RT
. Excellent latch immunity on all inputs and outputs
o ESD protection on all leads
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.
Product Summary
VOFFSET 600V max.
Duty Cycle 50%
Tr/T p 80/40ns
vclamp 15.6V
Deadtime (typ.) 1.2 ps
Packages
8 Lead PDIP 8 Lead SOIC
Typical Connection
'" 600V
shutowal COM
IR2154
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage param-
eters are absolute voltages referenced to COM, all currents are defined positive into any lead. The thermal resistance
and power dissipation ratings are measured under board mounted and still air conditions.
International
IEQR Rectifier
Symbol Definition Min. Max. Units
VB High side floating supply voltage -0.3 625
Vs High side floating supply offset voltage VB - 25 VB + 0.3
VH0 High side floating output voltage Vs - 0.3 VB + 0.3
VLo Low side output voltage -0.3 Vcc + 0.3 V
VRT RT pin voltage -O.3 VCC + 0.3
VCT CT pin voltage -0.3 Vcc + 0.3
ICC Supply current (note 1) - 25 mA
IRT RT pin current -5 5
dl/s/dt Allowable offset voltage slew rate -50 50 V/ns
PD Maximum power dissipation @ TA f +25°C (8 Lead DIP) - 1.0 W
(8 Lead SOIC) - 0.625
RthJA Thermal resistance, junction to ambient (8 Lead DIP) - 125 o
(8 Lead SOIC) - 200 CAN
TJ Junction temperature -55 150
Ts Storage temperature -55 150 "C
TL Lead temperature (soldering, 10 seconds) - 300
Recommended Operating Conditions
For proper operation the device should be used within the recommended conditions.
Symbol Definition Min. Max. Units
VBs High side floating supply voltage VCC - 0.7 VcLAMP
Vs Steady state high side floating supply offset voltage -3.0 (note 2) 600 V
VCC Supply voltage 10 VCLAMP
ICC Supply current (note 3) 5 mA
TJ Junction temperature -40 125 ''C
Note I: This IC contains a zener clamp structure between the chip VCC and COM which has a nominal breakdown
Note 2:
Note 3:
voltage of 15.6V. Please note that this supply pin should not be driven by a DC, low impedance power source
greater than the VCLAMp specified in the Electrical Characteristics section.
Care should be taken to avoid output switching conditions where the Vs node flies inductively below ground by
more than 5V.
Enough current should br supplied to the Vcc pin ofthe IC to keep the internal 15.6V zener diode clamping the
voltage at this pin.
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