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STPS40SM100CR-STPS40SM100CT
Power Schottky Rectifier
April 2010 Doc ID 15525 Rev 2 1/9
STPS40SM100CPower Schottky rectifier
Features High current capability Avalanche rated Low forward voltage drop current High frequency operation
DescriptionThis Schottky rectifier is suited for high frequency
switch mode power supply.
Packaged in TO-220AB, D2 PAK and I2P AK, this
device is intended to be used in notebook, game
station and desktop adaptors, providing in these
applications a good efficiency at both low and
high load.
Figure 1. Electrical characteristics (a)
Table 1. Device summary VARM and IARM must respect the reverse safe
operating area defined in Figure 11. VAR and IAR are
pulse measurements (tp < 1 µs). VR, IR, VRRM and VF,
are static characteristics
Characteristics STPS40SM100C2/9 Doc ID 15525 Rev 2
1 Characteristics o evaluate the conduction losses use the following equation:
P = 0.580 x IF(AV) + 0.0043 x IF2 (RMS)
Table 2. Absolute ratings (limiting values) For temperature or pulse time duration deratings, refer to Figure 4. and Figure 5. More details regarding the avalanche
energy measurements and diode validation in the avalanche are provided in the application notes AN1768 and AN2025. Refer to Figure 11. condition to avoid thermal runaway for a diode on its own heatsinkdPtot
dTj--------------- 1
Rthja–()--------------------------<
Table 3. Thermal resistance
Table 4. Static electrical characteristics (per diode, at 25 °C unless otherwise specified) Pulse test: tp = 5 ms, δ < 2% Pulse test: tp = 380 µs, δ < 2%
STPS40SM100C CharacteristicsDoc ID 15525 Rev 2 3/9
Figure 2. Average forward power dissipation
versus average forward current
(per diode)
Figure 3. Average forward current versus
ambient temperature (δ = 0.5, per
diode)
Figure 4. Normalized avalanche power
derating versus pulse duration
Figure 5. Normalized avalanche power
derating versus junction
temperature
Figure 6. Non repetitive surge peak forward
current versus overload duration,
maximum values, per diode
Figure 7. Relative variation of thermal
impedance junction to case
versus pulse duration
Characteristics STPS40SM100C4/9 Doc ID 15525 Rev 2
Figure 8. Reverse leakage current versus
reverse voltage applied (typical
values, per diode)
Figure 9. Junction capacitance versus
reverse voltage applied
(typical values, per diode)
Figure 10. Forward voltage drop versus
forward current (per diode)
Figure 11. Reverse safe operating area p < 1 µs and Tj < 150 °C)
STPS40SM100C Package informationDoc ID 15525 Rev 2 5/9
2 Package information Epoxy meets UL94, V0 Cooling method: by conduction (C) Recommended torque value: 0.4 to 0.6 N·m
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOP ACK®
specifications, grade definitions and product status are available at: .
ECOPACK® is an ST trademark.
Table 5. TO-220AB dimensions
Package information STPS40SM100C
6/9 Doc ID 15525 Rev 2
Mounting (soldering) the I2 PAK metal slug (heatsink) with alloy, like a surface mount device,
IS NOT PERMITTED. A standard through-hole mounting is mandatory.
Table 6. I2 PAK dimensions
