301020013 datasheet(29/109 Pages) AMSOSRAM

поискавой системы для электроныых деталей

301020013 датащи(PDF) 29 Page - ams-OSRAM AG

29 / 109 page

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Functional description

Datasheet • PUBLIC • Document Feedback

DS000444 • v5-00 • 2025-Aug-29

29 / 109

7.3

Startup sequence

To avoid latch up problems that can create faulty operation points, the correct sequential

power on sequence for all devices in INVAR headboard package is:

1. VDDESD

2. VDDA

3. VDD_BULK

4. VDDD

5. VDDIO

6. Ramp up signals on any inputs

7. Release N_RESET_#

If the control overall supplies is not possible, at least care must be taken for the sensor

supplies to raise up in the following order:

1. VDDESD

2. VDD_BULK, VDDA, VDDD, VDDIO

3. Ramp up signals on any inputs

4. Release N_RESET_#

For the LCC Ceramic package versions, it is important that VDD ramps prior to any digital

input signal.

The Power Off sequence is the inverse order of Power On, for above both situations.

Information:

• Fault A: Any VDDx is supplied before VDDESD or to a higher value than VDDESD.

• Fault B: Digital inputs are supplied prior to supply of VDDESD

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