Page History
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Company | Trenz Electronic GmbH |
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PCN Number | PCN-20190830 |
Title | TEI0009-02 Under Voltage Protection Change |
Subject | Trenz Electronic TEB0724 Hardware Change |
Issue Date | 2019-09-01 |
Products Affected
This change affects TEI0009-02 with serial numbers greater than A14909.
affected product |
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TEI0009-02 |
Changes
#1 Replaced R27 by 953kOhm and R32 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 current drops a voltage drop below the under voltage lock out limit of the input protection circuit.
Impact: Undervoltage Under voltage protection limit is decreased to 4.06V, which gives a larger marging for current drops 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 (TEI0009-02) are printed on the top side of the PCB.
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Production Shipment Schedule
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