TPS1HC100-Q1
ZHCSLK6A –JULY 2021 –REVISED DECEMBER 2021
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图8-9. 5-mH Maximum Demagnetization Curve
8.3.4 Full Protections and Diagnostics
表 8-1 is when DIAG_EN is enabled. When DIAG_EN is low, current sense and FLT are disabled. The output is
in high-impedance mode. Refer to 表8-1 for details.
表8-1. Diagnostic Enable Logic Table
DIAG_EN IN Condition
Protections and Diagnostics
ON
HIGH
OFF
See Fault Table
ON
Diagnostics disabled, protection normal
SNS and FLT are high impedance
LOW
OFF
表8-2. Fault Table
Conditions
EN
VOUT
Latch
FLT
SNS
Behavior
Recovery
L
L
x
Hi-Z
Hi-Z
0
Normal
VBB –
Normal
H
H
x
x
ILoad / Ksns Normal
ILOAD
RON
×
Holds the current at the current limit
until thermal shutdown or when the
overcurrent event is removed. Typical
deglitch time for device to recognize
overcurrent fault and begin to act on it
is 2.5 μs.
VBB –
ILIM
RLOAD
Overcurrent
L
VSNSFH
×
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