STEVAL-IFS003V1 STMicroelectronics, STEVAL-IFS003V1 Datasheet - Page 30

• Manufacturer Part Number: STEVAL-IFS003V1
• Description: BOARD STLM75/STDS75/ST72F651
• Manufacturer: STMicroelectronics

Specifications of STEVAL-IFS003V1

• Design Resources: STEVAL-IFS003V1 Gerber Files STEVAL-IFS003V1 Schematic STEVAL-IFS003V1 Bill of Materials
• Sensor Type: Temperature
• Sensing Range: -55°C ~ 125°C
• Interface: I²C
• Voltage - Supply: 7.5 V ~ 19 V
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ST72F651, STDS75, STLM75
• Silicon Manufacturer: ST Micro
• Silicon Core Number: STLM75/STDS75 And ST72F651AR6
• Kit Application Type: Sensing - Temperature
• Application Sub Type: Temperature Sensor
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-6238

ST72651AR6
6.3 LOW VOLTAGE DETECTOR (LVD)
To allow the integration of power management
features in the application, the Low Voltage Detec-
tor function (LVD) generates a static reset when
the V
value. This means that it secures the power-up as
well as the power-down, keeping the ST7 in reset.
The V
than the V
to avoid a parasitic reset when the MCU starts run-
ning and sinks current on the supply (hysteresis).
Figure 21. Low Voltage Detector vs Reset
30/161
1
RESET
V
V
DDA
IT+(LVD)
IT-(LVD)
IT-
reference value for a voltage drop is lower
supply voltage is below a V
IT+
reference value for power-on in order
V
DDA
IT-
reference
Doc ID 7215 Rev 4
The LVD Reset circuitry generates a reset when
V
The LVD function is illustrated in
During a Low Voltage Detector Reset, the RESET
pin is held low, thus permitting the MCU to reset
other devices.
Note: It is recommended to make sure that the
V
device is exiting from Reset, to ensure the applica-
tion functions properly.
V
DDA
DDA
hyst
– V
– V
supply voltage rises monotonously when the
is below:
IT+
IT-
when V
when V
DDA
DDA
is falling
is rising
Figure
21.