IR21091S

Product Summary

The IR21091S is a high voltage, high speed power MOSFET and IGBT driver with dependant high and low side referenced output channels. Proprietary HVIC and latch immune CMOS technologies enable rugge-dized monolithic construction. The logic input is compatible with standard CMOS or LSTTL output, down to 3.3V logic. The output drivers feature a high pulse current buffer stage designed for minimum driver crossconduction. The floating channel can be used to drive an N-channel power MOSFET or IGBT in the high side configuration which operates up to 600 volts.

Parametrics

IR21091S absolute maximum ratings: (1)High side floating absolute voltage: -0.3 to 625 V; (2)High side floating supply offset voltage: VB - 25 to VB + 0.3 V; (3)High side floating output voltage: VS - 0.3 to VB + 0.3 V; (4)Low side and logic fixed supply voltage: -0.3 to 25 V; (5)Low side output voltage: -0.3 to VCC + 0.3 V; (6)Programmable dead-time and shut-down pin voltage: VSS - 0.3 to VCC + 0.3 V; (7)Logic input voltage: VSS - 0.3 to VCC + 0.3 V; (8)Allowable offset supply voltage transient: 50 V/ns; (9)Package power dissipation TA ≤ +25°C (8 Lead PDIP): 1.0 W; (10)Thermal resistance, junction to ambient (8 Lead PDIP): 125 °C/W; (11)Junction temperature: 150 ℃; (12)Storage temperature: -50 to 150 ℃; (13)Lead temperature (soldering, 10 seconds): 300 ℃.

Features

IR21091S features: (1)Floating channel designed for bootstrap operation Fully operational to +600V Tolerant to negative transient voltage dV/dt immune; (2)Gate drive supply range from 10 to 20V; (3)Undervoltage lockout for both channels; (4)3.3V, 5V and 15V input logic compatible; (5)Cross-conduction prevention logic; (6)Matched propagation delay for both channels; (7)High side output in phase with IN input; (8)Logic and power ground +/- 5V offset.; (9)Internal 500ns dead-time, and programmable up to 5us with one external RDT resistor; (10)Lower di/dt gate driver for better noise immunity; (11)The dual function DT/SD pin input turns off both channels.; (12)Available in Lead-Free.

Diagrams