ZHCSKX0 February 2020 TPS59632-Q1
PRODUCTION DATA.
A resistor to GND (RSLEWA) on SLEWA pin sets the slew rate. For a minimum start-up time of 100 µs, the maximum allowed slew rate would be VOUT/100 µs. This would mean a maximum start-up slew rate of 8.8 mV/µs. Hence, from Table 6 the maximum start-up slew rate setting of 5mV/µs is chosen. It should be noted that the slew rate corresponding to start-up rate is half of the slew rate during voltage changes due to VID changes as specified in the EC table. The table below provides the minimum and maximum start-up slew rate for each resistor selection. The resistor selection chosen for this design is RSLEWA = 20 kΩ.
SELECTION RESISTOR
RSLEWA (kΩ) |
MINIMUM START-UP SLEW RATE
(mV/µs) |
MAXIMUM START-UP SLEW RATE
(mV/µs) |
---|---|---|
20 | 3 | 5 |
24 | 6 | 10 |
30 | 9 | 15 |
39 | 12 | 20 |