HIGH AND LOW SIDE DRIVER
Features
• Floating channel designed for bootstrap operation 
• Fully operational to +600V
• Tolerant to negative transient voltage dV/dt immune
• Gate drive supply range from 10 to 20V
• Undervoltage lockout for both channels
• 3.3V logic compatible Separate logic supply range
from 3.3V to 20V Logic and power ground ±5V offset
• CMOS Schmitt-triggered inputs with pull-down
• Cycle by cycle edge-triggered shutdown logic
• Matched propagation delay for both channels
• Outputs in phase with inputs
• Also available LEAD-FREE
Description
The IR2112(S) 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. Logic inputs are compatible with standard CMOS or LSTTL outputs, down to 3.3V logic. The output drivers feature a high pulse current buffer stage designed for minimum driver crossconduction. Propagation delays are matched to simplify use in high frequency applications. 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.
Typical Connection
Recommended Operating Conditions
The Input/Output logic timing diagram is shown in Figure 1. For proper operation the device should be used within the recommended conditions. The VS and VSS offset ratings are tested with all supplies biased at 15V differential. Typical ratings at other bias conditions are shown in Figures 36 and 37.
| Symbol | Definition | Min. | Max. | Units |
| VB | High Side Floating Supply Absolute Voltage | VS + 10 | VS + 20 | V |
| VS | VS High Side Floating Supply Offset Voltage | Note | 600 |
| VHO | High Side Floating Output Voltage | VS | VB |
| VCC | Low Side Fixed Supply Voltage | 10 | 20 |
| VLO | Low Side Output Voltage | 0 | VCC |
| VDD | Logic Supply Voltage | VSS + 3 | VSS + 20 |
| VSS | VSS Logic Supply Offset Voltage -5 (Note 2) 5 | -5 (Note 2) | 5 |
| VIN | Logic Input Voltage (HIN, LIN & SD) | VSS | VDD |
| TA | Ambient Temperature | -40 | 125 |
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