Hi,
My customer has question about TPS22965.
Could you tell me about questoin?
[Question]
- Is there slew rate formula under the following condition?
Vin=1V, 1.8V, 2.5V, 3.3V
Vbias=3.3V
My customer tested TPS22965. The result is below.
Vin=1.0V, Vbias=3.3V, Ct=3,300pF: tr=2.034ms(2,543us/V)
Vin=1.8V, Vbias=3.3V, Ct=1,500pF: tr=1.665ms(1,157us/V)
Vin=2.5V, Vbias=3.3V, Ct=1,000pF: tr=1.407ms(704us/V)
Vin=3.3V, Vbias=3.3V, Ct=1,000pF: tr=1.802ms(683us/V)
Vin=3.3V, Vbias=3.3V, Ct=3,300pF: tr=5.467ms(2,071us/V)
*for 10% to 90% measurement on Vout
Vin and Vbias are already in steady state condition before the ON pin is asserted high.
The result is different from equation 1 in datasheet.
Is it possible to culculate the rise time?
Best Regards,
tateo
