Hi team,
We have some questions about the SN74CB3Q3125PWR.
1. whether the input is the mosfet structure?
2. whether the input can accept higher negative voltage -2v with smaller time(20ns)?
3. What's the meaning of VIK?-1.8V.
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Hi team,
We have some questions about the SN74CB3Q3125PWR.
1. whether the input is the mosfet structure?
2. whether the input can accept higher negative voltage -2v with smaller time(20ns)?
3. What's the meaning of VIK?-1.8V.
Hi
Thank you for using e2e:
1. whether the input is the mosfet structure?
The SN74CB3Q3125 is an NMOS series switch with a charge pump. The charge pump elevates the gate voltage of the pass transistor, providing a low and flat ON-state resistance (ron).
2. whether the input can accept higher negative voltage -2v with smaller time(20ns)?
The recommended input voltage range for the SN74CB3Q3125 is 0V-5V.
Also note the II/OK current max is -50mA specd at VI/O < 0. What this means is that clamping diode from Vin to GND will kick in and clamp negative voltages upto -50mA max.
3. What's the meaning of VIK?-1.8V.
VIK is undershoot voltage of this device which is -1.8V when Vcc=3.6V.
Thanks
Saminah
hi Saminah,
whether we can consider the I/O can accept VI/K to -1.8v if the current is below 50mA? Thanks.
Hi Frank,
If you look at the note below the Abs max ratings, the input and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed, however for better performance, it is recommended that part functions under the recommended operating conditions.
Thanks
Saminah