MAX14906ATM+T: FAQ

  • Basic configuration for MAX14906

    Q1: How to configure the DI/DO mode in MAX14906. Use SPI or D1-D4 pins? A1: MAX14906 is configured by SPI interface. Each DOI_ channel can be individually configured for digital output operation by…
  • Can VDD_ pins be float when MAX14906 is configured as DI?

    MAX14906’s VDD_ pins can be left float when configure as DI mode, but need to care about the DI dissipation.
  • How does the MAX14906 pass surge more than 1kV?

    To pass surge more than 1kV, the 1.5SMB39CA could be used on each DOI channel of MAX14906. These TVS are 1.5kW. If the surge levels is no more than +/-1kV , MAX14906 can support +/-1kV surge with only…
  • How to design SPI with MAX14906 through the logic pins A1 and A0?

    The MAX14906 SPI supports addressable SPI, meaning you can have up to four MAX14906 sharing the same CS\ signal, same SCLK, same SDI and same SDO. To differentiate the four devices on this shared SPI interface…
  • How to do ESD test on MAX14906EVKIT?

    First, it is recommended to add 470pF on each DOI_ pin to GND for +/-8kV ESD contact discharge. On the rev B MAX906EVkit, the 470pF cap can be installed on C4, C8, C9 and C10 for each DOI_ channel. …
  • How to do Surge test ±2.2kv with MAX14906EVKIT?

    The MAX14906 is able to withstand: +/-8kV contact ESD, +/-16kV air-gap ESD from DOI_ to GND +/-1kV surge from DOI_ to GND, with a TVS SMBJ36A on VDD to GND These ESD and Surge levels have…
  • How to test leakage current for MAX14906

    Q: MAX14906 DO leakage current test value is around 34.7uA(it is in datasheet range), but customer wants to keep it lower than 1uA, how to set it? A: To achieve the low leakage on the DOI pins…
  • How to test Surge with MAX14906EVKIT?

    We test our devices with surge applied to the DIO_ pin relative to GND of the chip, because this is the worst case. However, real equipment is tested differently: surges are applied from OUT pin relative…
  • MAX14906 current limit vs. output current

    The current limit levels can be selected individually for each channel by software. There are four levels that can be selected (see below table), enable “inrush” current limiting per channel via the ConfigDO…
  • What is the data rate of MAX14906?

    There is no straightforward answer to this question, as the propagation delay of the DI and DO modes depends on the output load and operation conditions. In the EC table, we specify the maximum prop delay…

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