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STPS2545CG Datasheet(PDF) 2 Page - STMicroelectronics |
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STPS2545CG Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 6 page STPS2545CT/CG/CFP 2/6 Symbol Parameter Value Unit Rth (j-c) Junction to ambient TO-220AB / D 2PAK Per diode 1.6 °C/W TO-220FPAB 4 TO-220AB / D 2PAK Total 1.1 °C/W TO-220FPAB 3.5 Rth (c) TO-220AB / D 2PAK Coupling 0.6 °C/W TO-220FPAB 3 THERMAL RESISTANCES Symbol Parameter Tests Conditions Min. Typ. Max. Unit IR * Reverse leakage Current Tj = 25°C VR =VRRM 125 µA Tj = 125°C 9 25 mA VF* Forward Voltage drop Tj = 125°C IF = 12.5 A 0.50 0.57 V Tj = 25°C IF = 25 A 0.84 Tj = 125°C IF = 25 A 0.65 0.72 STATIC ELECTRICAL CHARACTERISTICS (per diode) Pulse test : * tp = 380 µs, δ <2% To evaluate the conduction losses use the following equation : P = 0.42 x IF(AV) + 0.012 x IF 2 (RMS) 0 1 2 3 4 5 6 7 8 9 10 0.0 2.5 5.0 7.5 10.0 12.5 15.0 I (A) F(AV) δ = 0.05 δ = 0.1 δ = 0.2 δ = 0.5 δ = 1 P (W) F(AV) T δ=tp/T tp Fig. 1: Conduction losses versus average current. 0 2 4 6 8 10 12 14 0 25 50 75 100 125 150 175 T (°C) amb Rth (j-a)=Rth(j-c) Rth (j-a)=50°C/W TO-220AB/D²PAK I (A) F(AV) T δ=tp/T tp Fig. 2: Average forward current versus ambient temperature ( δ=0.5). When the diodes 1 and 2 are used simultaneously : ∆ Tj(diode 1) = P(diode1) x Rth(j-c)(Per diode) + P(diode 2) x Rth(c) 0 0.2 0.4 0.6 0.8 1 1.2 0 25 50 75 100 125 150 T (°C) j P(t ) P (25°C) ARM p ARM Fig. 4: Normalized avalanche power derating versus junction temperature. 0.001 0.01 0.1 0.01 1 0.1 10 100 1000 1 t (µs) p P(t ) P (1µs) ARM p ARM Fig. 3: Normalized avalanche power derating versus pulse duration. |
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