High frequency secondary rectifier A1 A2 K Description Datasheet - production data Dual rectifier suited for switch mode power supply and high frequency DC to DC converters. Packaged in TO-247, this device is intended for use in low voltage, high frequency inverters, free wheeling operation, welding equipment and telecom power supplies Table 1. Device summary TO-247 STTH63CW A2 K A1 Symbol I F(AV) V RRM V F (max) t rr (max) Value 2 x 3 A 3 V 1 V 55 ns Features Combines highest recovery and voltage performance Ultrafast, soft and noise-free recovery Low inductance and low capacitance allow simplified layout June 214 DocID6144 Rev 6 1/9 This is information on a product in full production. www.st.com
Characteristics STTH63 1 Characteristics Table 2. Absolute ratings (limiting values, per diode) Symbol Parameter Value Unit V RRM Repetitive peak reverse voltage 3 V I F(RMS) Forward rms current 6 A I F(AV) Average forward current, δ =.5 T c = 135 C δ =.5 Per diode Per device I FSM Surge non repetitive forward current t p = 1 ms Sinusoidal 3 A I RSM Non repetitive peak reverse current t p = 1 µs square 4 A T stg Storage temperature range -65 to + 175 C T j Maximum operating junction temperature 175 C 3 6 A Table 3. Thermal parameter Symbol Parameter Maximum Unit R th(j-c) Junction to case Per diode Total R th(j-c) Coupling.1 1.55 C/W When the diodes 1 and 2 are used simultaneously: Δ T j (diode1) = P (diode1) x R th(j-c) (per diode) + P (diode2) x R th(c) 2/9 DocID6144 Rev 6
Characteristics Table 4. Static electrical characteristics Symbol Parameter Test conditions Min. Typ Max. Unit I R (1) Reverse leakage current V R = 3V T j = 25 C - - 6 T j = 125 C - 6 6 µa V F (2) Forward voltage drop I F = 3 A T j = 25 C - - 1.25 T j = 125 C -.85 1 V 1. Pulse test: t p = 5 ms, δ < 2 % 2. Pulse test: t p = 38 µs, δ < 2 % To evaluate the maximum conduction losses use the following equation: P =.75 x I 2 F(AV) +.8I F (RMS) Table 5. Recovery characteristics Symbol Test conditions Min. Typ. Max. Unit I F =.5 A, I rr =.25 A, I R = 1 A - - 4 t rr T j = 25 C ns I F = 1 A, di F /dt = -5 A/µs, V R = 3 V - - 55 t fr - - 35 ns I F = 3 A, di F /dt = 2 A/µs V FR = 1.1 x V Fmax. T j = 25 C V FP - - 5 V S factor -.3 - - V CC = 2 V, I F = 3A, di F /dt = 2 A/µs T j = 125 C I RM - - 11 A DocID6144 Rev 6 3/9 9
Characteristics STTH63 Figure 1. Conduction losses versus average current (per diode). P1(W) 4 δ =.1 δ =.2 δ =.5 35 δ =.5 3 δ = 1 25 2 15 1 T 5 IF(av) (A) δ=tp/t tp 5 1 15 2 25 3 35 4 Figure 3. Relative variation of thermal impedance junction to case versus pulse duration (TO-247). 1..8.6.4 Zth(j-c)/Rth(j-c) δ =.5 δ =.2 δ =.1.2 Single pulse tp(s) δ=tp/t tp. 1E-4 1E-3 1E-2 1E-1 1E+ Figure 5. Reverse recovery time versus di F /dt (9% confidence, per diode). trr(ns) 18 VR=2V 16 14 IF=2*IF(av) 12 1 IF=IF(av) 8 6 4 IF=.5*IF(av) 2 T Figure 2. Forward voltage drop versus forward current (maximum values, per diode) 1 1 IFM(A) Typical values Tj=25 C Maximum values Maximum values VFM(V) 1.2.4.6.8 1. 1.2 1.4 1.6 1.8 2. 2.2 2.4 2.6 Figure 4. Peak reverse recovery current versus di F /dt (9% confidence, per diode). 22 2 18 16 14 12 1 8 6 4 2 IRM(A) VR=2V IF=IF(av) IF=2*IF(av) IF=.5*IF(av) Figure 6. Softness factor (tb/ta) versus di F /dt (typical values, per diode)..6.5.4.3.2 S factor VR=2V.1. 4/9 DocID6144 Rev 6
Characteristics Figure 7. Relative variation of dynamic parameters versus junction temperature (reference: T j = 125 C). 2.4 2.2 2. S factor 1.8 1.6 1.4 1.2 1. IRM.8.6.4.2 Tj( C). 25 5 75 1 125 Figure 8. Transient peak forward voltage versus di F /dt (9% confidence, per diode). 1 8 6 4 2 VFP(V) IF=IF(av) Figure 9. Forward recovery time versus di F /dt (9% confidence, per diode). 5 4 tfr(ns) IF=IF(av) VFR=1.1*VFmax 3 2 1 DocID6144 Rev 6 5/9 9
Package information STTH63 2 Package information Epoxy meets UL 94,V Cooling method: by conduction (C) Recommended torque values:.55 N m Maximum torque value: 1. 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. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark. Figure 1. TO-247 drawing 75325_G 6/9 DocID6144 Rev 6
Package information Table 6. TO-247 mechanical data Dim. mm. Min. Typ. Max. A 4.85 5.15 A1 2.2 2.6 b 1. 1.4 b1 2. 2.4 b2 3. 3.4 c.4.8 D 19.85 2.15 E 15.45 15.75 e 5.3 5.45 5.6 L 14.2 14.8 L1 3.7 4.3 L2 18.5 P 3.55 3.65 R 4.5 5.5 S 5.3 5.5 5.7 DocID6144 Rev 6 7/9 9
Ordering information STTH63 3 Ordering information Table 7. Ordering information Order code Marking Package Weight Base qty Delivery mode STTH66CW STTH66CW TO-247 4.36g 3 Tube 4 Revision history Table 8. Document revision history Date Revision Changes Oct-1999 5C Previous revision. 18-Jun-214 6 Removed ISOTOP package. Updated Section 2: Package information. 8/9 DocID6144 Rev 6
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