SLVSFI1A July 2021 – December 2021 TPS1HC100-Q1
PRODUCTION DATA
Component |
Description |
Purpose |
---|---|---|
TVS |
SMBJ39CA (optional) |
Filter voltage transients coming from battery (ISO7637-2) |
CVBB |
220 nF (optional) |
Better EMI performance |
CIC |
100 nF |
Minimal amount of capacitance on input for EMI mitigation |
CBULK |
10 uF (optional) |
There to hold the rail for the LDO; however, helps to filter voltage transients on supply rail. Not a requirement. |
RPROT |
5 kΩ |
Protection resistor for microcontroller and device I/O pins |
RILIM |
7 kΩ – 70 kΩ |
Set current limit threshold |
RSNS |
1kΩ |
Translate the sense current into sense voltage. |
CFILTER |
100 nF |
Coupled with RPROT on the SNS line creates a low pass filter to filter out noise going into the ADC of the MCU |
CVOUT |
22 nF |
Improves EMI performance, filtering of voltage transients |
RGND |
1 kΩ |
Stabilize GND potential during turn-off of inductive load |
DGND |
BAS21 Diode |
Keeps GND close to system ground during normal operation |