INSPECTION REPORT
Project name:
demo
| Time Stamp:
Nov 21 2022, 12:16:19
|
Analyzed with BOM - passive components features were included
Findings
Index Part Reference Pin Number Nets Components Category Description Status
1 R1 2 BL_EN CRGCQ0402F4K7 Invalid Passive Component Connection This pin should not be left floating
2 C41 2 5V GRM155R60J475ME47D Potential Capacitor Breach Voltage difference of 5V is too close to the rated voltage 6.3V
50% derating factor is recommended
+ 3-6 ... ... ... ... Communication Protocol I2C lines mismatch
7 U8 6 I2C_SCL HDC1080DMBT Missing Pull Resistor Pull-up resistor is missing
8 U9 37 N16931850 SIM7000E Missing Pull Resistor Pull-up resistor is missing
9 U6 9 DGND ADUM5211CRSZ Power Pin Connection This pin should not be connected directly to Ground
10 VLED- Redundant Pull Resistors 2 pull-down resistors (R5, R62) found on net
11 U4 28 GND_POWER MCP39F501-E/MQ Connection Instruction Violation This pin should be left floating
🛈 Datasheet pin description: "Data Ready (must be left floating)"
+ 12-25 U9 ... ... SIM7000E Connection Instruction Violation This pin should be left floating
26 U1 5 GND TPS61165DBV Connection Instruction Violation This pin should be connected to Ground via a Capacitor
🛈 Datasheet pin description: "Output of the transconductance error amplifier. Connect an external capacitor to this pin to compensate the converter."
+ 27-53 ... Best Practice Missing Test Point
+ 54-55 U9 ... ... SIM7000E Best Practice Reset pins should be connected to Ground via a Capacitor
Active Components Coverage
Index Component Status
1 ADUM5211CRSZ Supported ❄
2 ESP32-WROOM-32 Supported ❄🌡
3 F-GGO52Q1 Supported
4 HDC1080DMBT Supported ❄
5 LD39200 Supported
6 MCP39F501-E/MQ Supported ❄
7 MCP9700A Supported ❄
8 SIM7000E Supported
9 TPS61165DBV Supported ❄🌡
10 5045200691 Not supported
❄: Cold Ambient Operating Temperature 'Weakest Link' (stops working at -40°C)
🌡: Hot Ambient Operating Temperature 'Weakest Link' (stops working at 85°C)
Inspection Parameters
Capacitors derating: 50%
Power pin to Ground resistance alert threshold: 1kΩ
Testability check alert: On
Missing capacitor on reset line alert: On