Schottky Rectifier, 5.5 A VS-5WQFNPbF D-PAK (TO-252AA) Base cathode 4, 2 3 Anode Anode PRODUCT SUMMARY Package D-PAK (TO-252AA) I F(AV) 5.5 A V R V V F at I F See Electrical table I RM 4 ma at 25 C T J max. 5 C Diode variation Single die E AS 6 mj FEATURES Popular D-PAK outline Small foot print, surface mountable Low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability Meets MSL level, per J-STD-2, LF maximum peak of 26 C Material categorization: For definitions of compliance please see www.vishay.com/doc?9992 DESCRIPTION The VS-5WQFNPbF surface mount Schottky rectifier has been designed for applications requiring low forward drop and small foot prints on PC board. Typical applications are in disk drives, switching power supplies, converters, freewheeling diodes, battery charging, and reverse battery protection. MAJOR RATINGS AND CHARACTERISTICS SYMBOL CHARACTERISTICS VALUES UNITS I F(AV) Rectangular waveform 5.5 A V RRM V I FSM t p = 5 μs sine 33 A V F 5 A pk, T J = 25 C.63 V T J Range - 4 to 5 C VOLTAGE RATINGS PARAMETER SYMBOL VS-5WQFNPbF UNITS Maximum DC reverse voltage V R Maximum working peak reverse voltage V RWM V ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS Maximum average forward current See fig. 5 I F(AV) 5 % duty cycle at T C = 35 C, rectangular waveform 5.5 Maximum peak one cycle 5 μs sine or 3 μs rect. pulse Following any rated load 33 A non-repetitive surge current I FSM condition and with rated See fig. 7 ms sine or 6 ms rect. pulse V RRM applied Non-repetitive avalanche energy E AS, I AS =.5 A, L = 4 mh 6. mj Current decaying linearly to zero in μs Repetitive avalanche current I AR.5 A Frequency limited by T J maximum V A =.5 x V R typical Revision: 29-May-3 Document Number: 94235
VS-5WQFNPbF ELECTRICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS 5 A.77 Maximum forward voltage drop A.9 V () See fig. FM 5 A.63 T J = 25 C A.74 V Maximum reverse leakage current I () See fig. 2 RM V R = Rated V R T J = 25 C 4 ma Threshold voltage V F(TO).47 V T J =T J maximum Forward slope resistance r t 2.46 m Typical junction capacitance C T V R = 5 V DC (test signal range khz to MHz), 25 C 83 pf Typical series inductance L S Measured lead to lead 5 mm from package body 5. nh Note () Pulse width < 3 μs, duty cycle < 2 % THERMAL - MECHANICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS Maximum junction and storage temperature range T () J, T Stg - 4 to 5 C Maximum thermal resistance, DC operation R junction to case thjc See fig. 4 3. C/W Approximate weight.3 g. oz. Marking device Case style D-PAK (similar to TO-252AA) 5WQFN Note dp () tot ------------ < ------------- thermal runaway condition for a diode on its own heatsink dt J R thja Revision: 29-May-3 2 Document Number: 94235
VS-5WQFNPbF I F - Instantaneous Forward Current (A) T J = 5 C T J = 25 C I R - Reverse Current (ma)... T J = 5 C T J = 25 C T J = C T J = 75 C T J = 5 C.5..5 2. 2.5 3. 3.5 V FM - Forward Voltage Drop (V). 2 3 4 5 6 7 8 9 V R - Reverse Voltage (V) Fig. - Maximum Forward Voltage Drop Characteristics Fig. 2 - Typical Values of Reverse Current vs. Reverse Voltage C T - Junction Capacitance (pf) 2 4 6 8 V R - Reverse Voltage (V) Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage Z thjc - Thermal Impedance ( C/W). Single pulse (thermal resistance) D =.75 D =.5 D =.33 D =.25 D =.2...... t - Rectangular Pulse Duration (s) P DM Notes:. Duty factor D = t /t 2 2. Peak T J = P DM x Z thjc + T C t t 2 Fig. 4 - Maximum Thermal Impedance Z thjc Characteristics Revision: 29-May-3 3 Document Number: 94235
VS-5WQFNPbF www.vishay.com Allowable Case Temperature ( C) 5 45 4 35 3 25 2 Square wave (D =.5) 8 % rated V R applied See note () 2 DC 3 4 5 6 7 8 Average Power Loss (W) 5.5 5. 4.5 4. 3.5 3. 2.5 2..5..5 D =.2 D =.25 D =.33 D =.5 D =.75 DC RMS limit 2 3 4 5 6 7 8 I F(AV) - Average Forward Current (A) I F(AV) - Average Forward Current (A) Fig. 5 - Maximum Allowable Case Temperature vs. Average Forward Current Fig. 6 - Forward Power Loss Characteristics I FSM - Non-Repetitive Surge Current (A) At any rated load condition and with rated V RRM applied following surge t p - Square Wave Pulse Duration (µs) Fig. 7 - Maximum Non-Repetitive Surge Current Note () Formula used: T C = T J - (Pd + Pd REV ) x R thjc ; Pd = Forward power loss = I F(AV) x V FM at (I F(AV) /D) (see fig. 6); Pd REV = Inverse power loss = V R x I R ( - D); I R at V R = 8 % rated V R Revision: 29-May-3 4 Document Number: 94235
VS-5WQFNPbF ORDERING INFORMATION TABLE Device code VS- 5 W Q FN TRL PbF 2 3 4 5 6 7 8 - product 2 - Current rating (5.5 A) 3 - Package identifier: W = D-PAK 4 - Schottky Q series 5 - Voltage rating ( = V) 6 - FN = TO-252AA (D-PAK) 7 - None = Tube (5 pieces) TR = Tape and reel TRL = Tape and reel (left oriented) TRR = Tape and reel (right oriented) 8 - PbF = Lead (Pb)-free Dimensions Part marking information Packaging information SPICE model LINKS TO RELATED DOCUMENTS www.vishay.com/doc?956 www.vishay.com/doc?9559 www.vishay.com/doc?9533 www.vishay.com/doc?95549 Revision: 29-May-3 5 Document Number: 94235
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