Product Summary
The IR21084 is a high voltage, high speed power MOSFET and IGBT driver with independent high and low side referenced output channels. Proprietary HVIC and latch immune CMOS technologies enable ruggedized monolithic construction. The logic input of the IR21084 is compatible with standard CMOS or LSTTL output, down to 3.3V logic. The IR21084 features a high pulse current buffer stage designed for minimum driver cross-conduction.
Parametrics
IR21084 absolute maximum ratings: (1)VB High side floating absolute voltage: -0.3 to 625V; (2)dVS/dt Allowable offset supply voltage transient: 50 V/ns; (3)PD Package power dissipation @ TA ≤ +25°C (8 lead PDIP): 1.0W, (8 lead SOIC): 0.625W; (4)TJ Junction temperature: 150°C; (5)TS Storage temperature: -50 to 150°C; (6)TL Lead temperature (soldering, 10 seconds): 300°C.
Features
IR21084 features: (1)Gate drive supply range from 10 to 20V; (2)Undervoltage lockout for both channels; (3)3.3V, 5V and 15V input logic compatible; (4)Cross-conduction prevention logic; (5)Matched propagation delay for both channels; (6)High side output in phase with HIN input; (7)Low side output out of phase with LIN input; (8)Logic and power ground +/- 5V offset.; (9)Internal 540ns dead-time, and programmable up to 5us with one external RDT resistor; (10)Lower di/dt gate driver for better noise immunity; (11)Available in Lead-Free.
Diagrams

| Image | Part No | Mfg | Description | ![]() |
Pricing (USD) |
Quantity | ||||||||||||
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![]() IR21084 |
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![]() IC DRIVER HIGH/LOW DRIVER 14-DIP |
![]() Data Sheet |
![]() Negotiable |
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![]() IR21084S |
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![]() IC DRIVER HALF BRIDGE 14SOIC |
![]() Data Sheet |
![]() Negotiable |
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![]() IR21084SPBF |
![]() International Rectifier |
![]() Power Driver ICs |
![]() Data Sheet |
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![]() IR21084STR |
![]() |
![]() IC DRIVER HALF BRIDGE 14SOIC |
![]() Data Sheet |
![]() Negotiable |
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![]() |
![]() IR21084STRPBF |
![]() International Rectifier |
![]() Power Driver ICs |
![]() Data Sheet |
![]()
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![]() |
![]() IR21084PBF |
![]() International Rectifier |
![]() Power Driver ICs |
![]() Data Sheet |
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(China (Mainland))











