Datasheet

Application Notes
For technical support and further information visit http://power.ti.com
Notes
1. Output pre-bias holdoff has now been incorporated into
the W-suffix modules (PTH12000W), with a production
lot date code of “0423” or later.
2. To further ensure that the regulator’s output does not sink
current when power is first applied (even with a ground
signal applied to the Inhibit control pin), the input voltage
must always be greater than the applied pre-bias source.
This condition must exist
throughout the power-up
sequence of the power system.
Figure 3–5; Pre-Bias Startup Waveforms
Vo (1 V/Div)
1
Vo (1 V/Div)
2
Io (2 A/Div)
2
HORIZ SCALE: 5 ms/Div
Hold-off
Period
PTH12000 Series