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IR22381QPBF/IR21381Q(PbF)
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage
parameters are absolute voltages referenced to VSS, all currents are defined positive into any lead. The thermal
resistance and power dissipation ratings are measured under board mounted and still air conditions.
Symbol
Definition
Min.
Max.
Units
VS
VB
VHO
VCC
COM
VLO
VIN
VFLT
VF
VDSH
VDSL
VBR
dVs/dt
PD
RthJA
TJ
TS
TL
High side offset voltage
High side floating supply voltage
VB 1,2,3 - 25
(IR22381) -0.3
(IR21381) -0.3
VB 1,2,3 + 0.3
1225
625
High side floating output voltage (HOP, HON, HOQ)
Low side and logic fixed supply voltage
VS1,2,3 - 0.3
-0.3
VB 1,2,3 + 0.3
25
Power ground
Low side output voltage (LOP, LON, LOQ)
Logic input voltage (HIN/N, LIN, BRIN/N, SD)
VCC - 25
VCC + 0.3
VCOM -0.3
VCC + 0.3
-0.3 VCC + 0.3 or VSS +15
Which ever is lower
V
FAULT/N output voltage
Feedback output voltage
High side desat/feedback input voltage
Low side desat/feedback input voltage
Brake output voltage
Allowable offset voltage slew rate
-0.3
-0.3
VB 1,2,3 - 25
VCC - 25
VCOM -0.3
—
VCC + 0.3
VCC + 0.3
VB 1,2,3 + 0.3
VCC + 0.3
VCC + 0.3
50
V/ns
Package power dissipation @ TA ≤ +25°C
— 2.0 W
Thermal resistance, junction to ambient
— 60 °C/W
Junction temperature
— 125
Storage temperature
-55 150 °C
Lead temperature (soldering, 10 seconds)
— 300
Recommended Operating Conditions
For proper operation the device should be used within the recommended conditions. All voltage parameters are
absolute voltages referenced to VSS. The VS offset rating is tested with all supplies biased at 15V differential.
Symbol
Definition
Min.
Max.
Units
VB 1,2,3
High side floating supply voltage (Note 1)
VS1,2,3+12.5 VS1,2,3 + 20
VS1,2,3
High side floating supply offset voltage
(IR21381) Note 2
(IR22381) Note 2
600
1200
VHO 1,2,3
VLO1,2,3
High side (HOP/HOQ/HON) output voltage
Low side (LOP/LOQ/LON) output voltage
VS1,2,3
VCOM
VS1,2,3 + VB
VCC
VIN
VCC
COM
Logic input voltage (HIN/N, LIN, BRIN/N SD)
Low side supply voltage (Note 1)
Power ground
0
12.5
-5
VSS + 5
20
+5
V
VFLT
VF
VDSH
VDSL
VBR
TA
FAULT/N output voltage
Feedback output voltage
High side desat/feedback input voltage
Low side desat/feedback input voltage
BR output voltage
Ambient temperature
0
0
VB 1,2,3 - 20
VCC - 20
VCOM
-40
VCC
VCC
VB 1,2,3
VCC
VCC
115
°C
Note 1: While internal circuitry is operational below the indicated supply voltages, the UV lockout disables the output drivers if the UV
thresholds are not reached.
Note 2: Logic operational for VS from VSS-5V to VSS+600V (IR21381) or 1200V (IR22381). Logic state held for VS from VSS-5V to VSS-
VBS. (Please refer to the Design Tip DT97-3 for more details).
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