Product Summary
The IR21834STR is a high voltage, high speed power MOSFET and IGBT driver with dependent high and low side referenced output channels. Proprietary HVIC and latch immune CMOS technologies enable ruggedized monolithic construction. The IR21834STR is compatible with standard CMOS or LSTTL output, down to 3.3V logic. The IR21834STR features a high pulse current buffer stage designed for minimum driver cross-conduction.
Parametrics
IR21834STR absolute maximum ratings: (1)VB High side floating absolute voltage: -0.3 to 625V; (2)VS High side floating supply offset voltage: VB - 25 VB + 0.3; (3)VHO High side floating output voltage: VS - 0.3 to VB + 0.3; (4)VCC Low side and logic fixed supply voltage: -0.3 to 25V; (5)VLO Low side output voltage: -0.3 to VCC + 0.3; (6)DT Programmable dead-time pin voltage (IR21834 only): VSS - 0.3 to VCC + 0.3; (7)VIN Logic input voltage: VSS - 0.3 to VSS + 10; (8)VSS Logic ground (IR21834 only): VCC - 25 to VCC + 0.3; (9)dVS/dt Allowable offset supply voltage transient: 50 V/ns; (10)PD Package power dissipation @ TA ≤ +25°C (8-lead PDIP): 1.0W; (11)TJ Junction temperature: 150°C; (12)TS Storage temperature: -50 to 150°C; (13)TL Lead temperature (soldering, 10 seconds): 300°C.
Features
IR21834STR features: (1)Gate drive supply range from 10 to 20V; (2)Undervoltage lockout for both channels; (3)3.3V and 5V input logic compatible; (4)Matched propagation delay for both channels; (5)Logic and power ground +/- 5V offset.; (6)Lower di/dt gate driver for better noise immunity; (7)Output source/sink current capability 1.4A/1.8A; (8)Also available LEAD-FREE (PbF).
Diagrams

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![]() IR21834STR |
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![]() IC DRIVER HALFBRIDGE 600V 14SOIC |
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![]() IR21834STRPBF |
![]() International Rectifier |
![]() Power Driver ICs Hlf Brdg Drvr Sft Trn On Lw Sd Invrt |
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(China (Mainland))










