Infineon OPTIREG TLF30681QVS01, Manual

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Table 14 Electrical characteristics voltage monitoring (continued)
T
j
= -40°C to 150°C; V
R1VSx
= 3.7 V to 35 V; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Parameter Symbol Values Unit Note or condition Number
Min. Typ. Max.
Overvoltage threshold V
VM1,OV
+6.0 +8.0 +10 % Referenced to VM1
nominal reference
voltage V
VM1FB,nom
P_6.1.5.38
Overvoltage hysteresis V
VM1,OV,Hys
0.4 – 2.25 % – P_6.1.5.40
Undervoltage threshold V
VM1,UV
-6.0 -8.0 -10 % Referenced to VM1
nominal reference
voltage V
VM1FB,nom
P_6.1.5.42
Undervoltage hysteresis V
VM1,UV,Hys
0.4 – 2.25 % – P_6.1.5.44
Deglitching time t
VM1,deg
8 - 20 µs – P_6.1.5.45
Short-to-ground detection
time
t
VM1,StG
2.7 3.0 3.3 ms – P_6.1.5.46
External voltage monitor VM2 (VM2FB-AGx)
Overvoltage threshold
V
VM2,OV
+6.0 +8.0 +10 % Referenced to VM2
nominal reference
voltage V
VM2FB,nom
P_6.1.5.48
Overvoltage hysteresis V
VM2,OV,Hys
0.4 – 2.25 % – P_6.1.5.50
Undervoltage threshold V
VM2,UV
-6.0 -8.0 -10 % Referenced to VM2
nominal reference
voltage V
VM2FB,nom
P_6.1.5.52
Undervoltage hysteresis V
VM2,UV,Hys
0.4 – 2.25 % – P_6.1.5.54
Deglitching time t
VM2,deg
8 - 20 µs – P_6.1.5.55
Short-to-ground detection
time
t
VM2,StG
2.7 3.0 3.3 ms – P_6.1.5.56
6.2 Thermal protection
The device incorporates multiple independent temperature sense elements to monitor its temperature,
specifically of the high-voltage regulator Buck1 and the post-regulator Buck2. Please refer to the respective
sections for more information on the individual blocks.
A third temperature sensor is located in the monitoring block of the device.
Table 15 shows the temperature
thresholds for the sensor in the monitoring block.
While the device monitors temperature in the individual blocks, it collects the thermal shutdown (TSD) events
of these measurements globally. The device sets an appropriate bit in the SPI registers OTSF0 and OTSF1 for
each individual warning and fault event.
An overtemperature warning event for any of the three temperature sensors generates an interrupt for the
microcontroller.
OPTIREG
™
PMIC TLF30681QVS01
Power management IC
Monitoring functions
Datasheet 50 Rev. 1.0
2020-04-08