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TLV1704-SEP: VOL max will be for an output sink current up to 4mA

Part Number: TLV1704-SEP
Other Parts Discussed in Thread: TLV1704

Team,

I’m trying to understand what the VOL max will be for an output sink current up to 4mA when V- is 0V. I was looking at the ‘Voltage output swing from rail’ characteristic but 1100mV seems very high to use as a VOL max. Is this correct?

  • For 0 mA, the maximum VOL is 700 mV, so the voltage drop caused by the 4 mA output current is 400 mV, which is plausible. (The plain TLV1704 has similar values.)

    I do not know how the output is constructed, but this sounds as if there is an additional diode or BJT in the path between the output and GND.

  • Michael

    the TLV1704 does not have a strong output stage.  It is really not intended to sink much current.  Depending on the logic level requirments of the output receiving circuitry, please limit the sink current accordingly with a larger pullup resistor value.

    Chuck