VS-18TQ035SPbF, VS-18TQ040SPbF, VS-18TQ045SPbF
Vishay High Power Products
Schottky Rectifier, 18 A
FEATURES
Base cathode 2
• • • •
D2PAK
1 N/C
3 Anode
• • • • •
PRODUCT SUMMARY
IF(AV) VR 18 A 35 V to 45 V
175 °C TJ operation Low forward voltage drop High frequency operation High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Guard ring for enhanced ruggedness and long term reliability Meets MSL level 1, per J-STD-020, LF maximum peak of 260 °C Halogen-free according to IEC 61249-2-21 definition Compliant to RoHS directive 2002/95/EC AEC-Q101 qualified
DESCRIPTION
The VS-18TQ... Schottky rectifier series has been optimized for low reverse leakage at high temperature. The proprietary barrier technology allows for reliable operation up to 175 °C junction temperature. Typical applications are in switching power supplies, converters, freewheeling diodes, and reverse battery protection.
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL IF(AV) VRRM IFSM VF TJ CHARACTERISTICS Rectangular waveform Range tp = 5 μs sine 18 Apk, TJ = 125 °C Range VALUES 18 35 to 45 1800 0.53 - 55 to 175 UNITS A V A V °C
VOLTAGE RATINGS
PARAMETER Maximum DC reverse voltage Maximum working peak reverse voltage SYMBOL VR VRWM VS-18TQ035SPbF 35 VS-18TQ040SPbF 40 VS-18TQ045SPbF 45 UNITS V
ABSOLUTE MAXIMUM RATINGS
PARAMETER Maximum average forward current See fig. 5 Maximum peak one cycle non-repetitive surge current See fig. 7 Non-repetitive avalanche energy Repetitive avalanche current SYMBOL IF(AV) TEST CONDITIONS 50 % duty cycle at TC = 149 °C, rectangular waveform 5 μs sine or 3 μs rect. pulse IFSM 10 ms sine or 6 ms rect. pulse EAS IAR Following any rated load condition and with rated VRRM applied VALUES 18 1800 A 390 24 3.6 mJ A UNITS A
TJ = 25 °C, IAS = 3.6 A, L = 3.7 mH Current decaying linearly to zero in 1 μs Frequency limited by TJ maximum VA = 1.5 x VR typical
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Document Number: 94150 Revision: 12-Mar-10 For technical questions, contact:
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VS-18TQ035SPbF, VS-18TQ040SPbF, VS-18TQ045SPbF
Vishay High Power Products Schottky Rectifier, 18 A
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL 18 A Maximum forward voltage drop See fig. 1 VFM (1) 36 A 18 A 36 A Maximum reverse leakage current See fig. 2 Maximum junction capacitance Typical series inductance Maximum voltage rate of change Note (1) Pulse width < 300 μs, duty cycle < 2 % IRM (1) CT LS dV/dt TJ = 25 °C TJ = 125 °C TEST CONDITIONS TJ = 25 °C TJ = 125 °C VR = Rated VR VALUES 0.60 0.72 0.53 0.67 2.5 25 1400 8.0 10 000 mA pF nH V/μs V UNITS
VR = 5 VDC (test signal range 100 kHz to 1 MHz), 25 °C Measured lead to lead 5 mm from package body Rated VR
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER Maximum junction and storage temperature range Maximum thermal resistance, junction to case Typical thermal resistance, case to heatsink Approximate weight minimum maximum D2PAK SYMBOL TJ, TStg RthJC RthCS DC operation See fig. 4 Mounting surface, smooth and greased TEST CONDITIONS VALUES - 55 to 175 1.50 °C/W 0.50 2 0.07 6 (5) 12 (10) g oz. kgf · cm (lbf · in) 18TQ035S Marking device Case style 18TQ040S 18TQ045S UNITS °C
Mounting torque
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For technical questions, contact:
[email protected]
Document Number: 94150 Revision: 12-Mar-10
VS-18TQ035SPbF, VS-18TQ040SPbF, VS-18TQ045SPbF
Schottky Rectifier, 18 A Vishay High Power Products
1000
1000 TJ = 175 °C
IF - Instantaneous Forward Current (A)
IR - Reverse Current (mA)
100 TJ = 150 °C 10 1 0.1 TJ = 75 °C 0.01 0.001 TJ = 25 °C 0.0001 TJ = 50 °C TJ = 125 °C TJ = 100 °C
100
10
TJ = 175 °C TJ = 125 °C TJ = 25 °C
1
0.1 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
0
5
10
15
20
25
30
35
40
45
VFM - Forward Voltage Drop (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
VR - Reverse Voltage (V)
Fig. 2 - Typical Values of Reverse Current vs. Reverse Voltage
10 000
CT - Junction Capacitance (pF)
1000
TJ = 25 °C
100 0 10 20 30 40 50
VR - Reverse Voltage (V)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
ZthJC - Thermal Impedance (°C/W)
10
1
PDM
0.1
0.01 Single pulse (thermal resistance) 0.001 0.00001 0.0001 0.001 0.01
D = 0.50 D = 0.33 D = 0.25 D = 0.17 D = 0.08
t1 t2
Notes: 1. Duty factor D = t1/t2 . 2. Peak TJ = PDM x ZthJC + TC 1 10
.
100
0.1
t1 - Rectangular Pulse Duration (s)
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics
Document Number: 94150 Revision: 12-Mar-10
For technical questions, contact:
[email protected]
www.vishay.com 3
VS-18TQ035SPbF, VS-18TQ040SPbF, VS-18TQ045SPbF
Vishay High Power Products Schottky Rectifier, 18 A
180 15
Allowable Case Temperature (°C)
175 170 165 160 155 150 0 4 8 12 DC
Average Power Loss (W)
18TQ RthJC (DC) = 1.50 °C/W
D = 0.08 D = 0.17 D = 0.25 D = 0.33 D = 0.50
10 RMS limit 5 DC
0 16 20 24 28 0 4 8 12 16 20 24 28
IF(AV) - Average Forward Current (A)
Fig. 5 - Maximum Allowable Case Temperature vs. Average Forwar.