IR22141 International Rectifier, IR22141 Datasheet - Page 20

• Manufacturer Part Number: IR22141
• Description: HALF-BRIDGE GATE DRIVER IC
• Manufacturer: International Rectifier

IR2214/IR22141(SS)
Referred to timing diagram of figure 17:
A. When the input signals are on together the
B. The HO signal is on and the high side IGBT
C. When FAULT/SD is latched low (see FAULT/
D. The DSH goes high but this is not read
E. The LO signal is on and the low side IGBT
F. The DSL goes high but this is not read
G. As point A (anti-shoot through).
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outputs go off (anti-shoot through).
desaturates, the HO turn off softly while the
SY_FLT stays low. When SY_FLT goes high
the FAULT/SD goes low. While in SSD, if
LIN goes up, LO does not change (freeze).
SD section) FLT_CLR can disable it and the
outputs go back to follow the inputs.
because HO is off.
desaturates, the low side behaviour is the
same as described in point B.
because LO is off.
Figure 18: I/O logic diagram with SY_FLT and FAULT/SD as input
HO (HOP/HON)
LO (LOP/LON)
FAULT/SD
FLT_CLR
SY_FLT
HIN
LIN
A B
ADVANCE DATA
C
D
Referred to logic diagram figure 18:
A. The device is in hold state, regardless of input
B. The device outputs goes off by hard
C. Externally driven low FAULT/SD (shutdown
D. The FAULT/SD is released and the outputs
E. Externally driven low FAULT/SD: outputs go
F. As point A and B but for the low side output.
variations. Hold state is forced by SY_FLT
forced low externally
shutdown, externally commanded. A through
B is the same sequence adopted by another
IR2214 device in SSD procedure.
state) cannot be disabled by forcing FLT_CLR
(see FAULT/SD section).
go back to follow the inputs.
off by hard shutdown (like point B).
E
F
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