STEVAL-IFS003V1 STMicroelectronics, STEVAL-IFS003V1 Datasheet - Page 89

• 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

PWM/BRM GENERATOR (Cont’d)
PWM/BRM Outputs
The PWM/BRM outputs are assigned to dedicated
pins.
The PWM/BRM outputs can be connected to an
RC filter (see
The RC filter time must be higher than T
Figure 49. Typical PWM Output Filter
Figure 50. PWM Simplified Voltage Output After Filtering
OUTPUT
STAGE
VOLTAGE
VOLTAGE
PWMOUT
PWMOUT
OUTPUT
OUTPUT
V
V
V
V
0V
0V
0V
0V
DD
DD
DD
DD
"CHARGE"
Figure 49
"CHARGE"
for an example).
"DISCHARGE"
R
ext
"DISCHARGE"
CPU
OUTPUT
VOLTAGE
C
Doc ID 7215 Rev 4
ext
x64.
"CHARGE"
Table 29. 6-Bit PWM Ripple After Filtering
With RC filter (R=1KΩ),
f
V
PWM Duty Cycle 50%
R=R
Note: after a reset these pins are tied low by de-
fault and are not in a high impedance state.
CPU
DD
"CHARGE"
Cext (µF)
= 8 MHz
= 5V
ext
0.128
1.28
12.8
"DISCHARGE"
"DISCHARGE"
V RIPPLE (mV)
V
ripple
0.78
7.8
V ripple (mV)
78
ST72651AR6
(mV)
V
V
OUTAVG
OUTAVG
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