PTD08A020W_10 Datasheet, PDF (11/15 Pages) Texas Instruments – 20-A, 4.75-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, DIGITAL POWERTRAIN™ MODULE

PTD08A020W
www.ti.com
SLTS286F – MAY 2007 – REVISED FEBRUARY 2010
UCD9240 Graphical User Interface (GUI)
When using the UCD9240 digital controller along with digital PowerTrain modules to design a digital power
system, several internal parameters of the modules are required to run the Fusion Digital Power Designer GUI.
See the plant parameters below for the PTD08A010W and PTD08A020W digital PowerTrain modules.
L (µH)
0.90
Table 1. PTD08A010W Plant Parameters
PTD08A010W Plant Parameters
DCR (mΩ)
Rds-on-hi (mΩ)
2.2
3.6
Rds-on-lo (mΩ)
3.6
L (µH)
1.0
Table 2. PTD08A020W Plant Parameters
PTD08A020W Plant Parameters
DCR (mΩ)
Rds-on-hi (mΩ)
1.5
5.0
Rds-on-lo (mΩ)
2.5
Internal output capacitance is present on the digital PowerTrain modules themselves. When using the GUI
interface this capacitance information must be included along with any additional external capacitance. See the
capacitor parameters below for the PTD08A010W and PTD08A020W digital PowerTrain modules.
C (µF)
47
Table 3. PTD08A010W Capacitor Parameters
PTD08A010W Capacitor Parameters
ESR (mΩ)
ESL (nH)
1.5
2.5
Quantity
1
C (µF)
47
Table 4. PTD08A020W Capacitor Parameters
PTD08A020W Capacitor Parameters
ESR (mΩ)
ESL (nH)
1.5
2.5
Quantity
2
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