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| Company | Trenz Electronic GmbH |
|---|---|
| PCN Number | PCN-20190829 |
| Title | TEB0724-02 Under Voltage Protection Change |
| Subject | Trenz Electronic TEB0724 Hardware Change |
| Issue Date | 2019-09-0105 |
Products Affected
This change affects TEB0724 carrier of revision TEB0724-02 with serial numbers greater than 568263.
affected product |
|---|
TEB0724-02 |
Changes
#1 Replaced R40 by 953kOhm and R44 by 147kOhm
Type: BOM change
Reason: Large start up currents led due to adverse conditions (e.g. weak powersupply, long wires, increased contact resistance) to a voltage drop below the under voltage lock out limit of the input protection circuit.
Impact: Under voltage protection limit is decreased to 4.06V, which gives a larger marging for a voltage drop during start up.
Method of Identification
The Serial number is written on a white QR Code sticker and placed on the top side of the PCB within the white frame. The model code and revision number (TEB0724-02) are printed on the top side of the PCB.
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