STPS200170TV1. High voltage power Schottky rectifier. Features. Description

Transcription

1 STPS27TV High voltage power Schottky rectifier Features Negligible switching losses Avalanche rated Low leakage current Good trade-off between leakage current and forward voltage drop Insulated package: ISOTOP Electrical insulation = 25 V rms, capacitance = 45 pf Description This high voltage Schottky rectifier is suited for high frequency switch mode power supplies. Packaged in ISOTOP, this device is intended for use in the secondary rectification of applications. A A2 A K A2 ISOTOP K2 K K2 Table. Device summary I F(AV) 2 x A V RRM 7 V T j 5 C V F (typ).63 V September 2 Doc ID 857 Rev 2 /7 7

2 Characteristics STPS27TV Characteristics Table 2. Absolute ratings - limiting values per diode at T amb = 25 C, unless otherwise specified Symbol Parameter Value Unit V RRM Repetitive peak reverse voltage 7 V I F(RMS) Forward rms current 2 A I F(AV) Average forward current, δ =.5 T c = 5 C per diode A I FSM Surge non repetitive forward current t p = ms sinusoidal 7 A P ARM Repetitive peak avalanche power t p = µs, T j = 25 C W T stg Storage temperature range -55 to + 5 C T j Maximum operating junction temperature () 5 C. dp tot condition to avoid thermal runaway for a diode on its own heatsink < dt R j th( j a) Table 3. Thermal parameters Symbol Parameter Value Unit R th(j-c) Junction to case Per diode.52 Total.3 R th(c) Coupling thermal resistance. C/W Table 4. When the diodes are used simultaneously: T j(diode) = P (diode) X R th(j-c) (per diode) + P (diode2) X R th(c) Static electrical characteristics Symbol Parameter Test conditions Min. Typ. Max. Unit I R () V F (2) Reverse leakage current Forward voltage drop. Pulse test: t p = 5 ms, δ < 2 % 2. Pulse test: t p = 38 µs, δ < 2 % T j = 25 C µa V R = V RRM T j = 25 C - 3 ma T j = 25 C I F = A T j = 5 C T j = 25 C I F = 2 A T j = 5 C To evaluate the conduction losses use the following equation: P =.5 x I F(AV) +.8 I F 2 (RMS) V 2/7 Doc ID 857 Rev 2

3 STPS27TV Characteristics Figure. Conduction losses versus average current (per diode) Figure 2. Average forward current versus ambient temperature (δ =.5, per diode) 9 8 P F(AV) (W) δ=.5 δ=. δ=.2 δ=.5 δ= 2 I F(AV) (A) R th(j-a) =R th(j-c) I F(AV)(A) δ=t p/t tp T 6 4 T 2 δ=tp/t tp T amb( C) Figure 3. Non-repetitive surge peak forward current vesus overload duration (maximum values per diode) Figure 4. Relative variation of thermal impedance (junction to case) versus pulse duration 8 I M (A). Z th -c /R th -c (j ) (j ) T C =5 C δ=.5 3 T C =75 C 2 IM T C =25 C t d=.5 t(s).e-3.e-2.e-.e+.4.3 δ=.2 T.2 δ=.. Single pulse t P(s) δ=tp/t tp..e-4.e-3.e-2.e-.e+.e+ Figure 5. Reverse leakage current versus reverse voltage applied (typical values per diode) Figure 6. Junction capacitances versus reverse voltage applied (typical values per diode).e+3.e+2 I R (ma) T j =5 C C(pF) F=MHz V OSC =3mV RMS T j =25 C.E+ T j =25 C.E+.E- T j = C T j =75 C T j =5 C.E-2 T j =25 C.E-3.E-4 V R (V) V R(V) Doc ID 857 Rev 2 3/7

4 Characteristics STPS27TV Figure 7. Forward voltage drop versus forward current (per diode, low level) Figure 8. Forward voltage drop versus forward current (per diode, high level) 5 I FM (A) I FM (A) 45 4 Tj=5 C Tj=5 C Tj=5 C (Typical values) Tj=25 C Tj=5 C (Typical values) Tj=25 C 5 V FM(V) V FM(V) Figure 9. Normalized avalanche power derating versus pulse duration Figure. Normalized avalanche power derating versus junction temperature P ARM(tp) P ARM( µs).2 P ARM(Tj) P ARM(25 C) t (µs) p.2 T ( C) j /7 Doc ID 857 Rev 2

5 STPS27TV Package information 2 Package information Epoxy meets UL94, V Cooling method: by conduction (C) In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: ECOPACK is an ST trademark. Table 5. ISOTOP dimensions Dimensions E Ref. Millimeters Inches G2 C Min. Max. Min. Max. A A A A F E2 F C2 B C C D D P E E D S G D E typ..976 typ. B G G G G E ØP F F P P S Doc ID 857 Rev 2 5/7

6 Ordering information STPS27TV 3 Ordering information Table 6. Ordering information Part Number Marking Package Weight Base qty Delivery mode STPS27TV STPS27TV ISOTOP 27 g without screws with screws Tube 4 Revision history Table 7. Document revision history Date Revision Changes 4-Nov-25 First issue. 9-Sep-2 2 Updated V F max at T j = 25 C and I F = A to.85 V. 6/7 Doc ID 857 Rev 2

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