LTC4269-2 vs. forcing VNEG to VPORTN

Dear Analog,

LTC4269-2 has an internal MOSFET which is used to pull down VNEG ("ground" for active operation) to VPORTN ("ground" of power supply). This MOSFET is kept off when the SHDN signal is asserted. Then VNEG is essentially pulled up to the positive rail VPORTP.

I am wondering if pulling "externally" in this state VNEG down to VPORTN could damage the chip. Would it make any difference whether it is pulled down strongly ("external" short to VPORTN) or through some resistance (even as high as 200kOhm)?

Best regards,
Adam



edits
[edited by: a.r.f. at 7:33 AM (GMT -4) on 6 Oct 2018]
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