Schottky Rectifier, 1 A

Transcription

1 Schottky Rectifier, 1 A BQPbF FEATURES SMB Cathode Anode Small foot print, surface mountable Low forward voltage drop High frequency operation Available RoHS* COMPLIANT Guard ring for enhanced ruggedness and long term reliability Lead (Pb)-free ( PbF suffix) Designed and qualified for industrial level PRODUCT SUMMARY I F(AV) V R 1.0 A V DESCRIPTION The BQPbF surface mount Schottky rectifier has been designed for applications requiring low forward drop and very small foot prints on PC boards. 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 1.0 A V RRM V I FSM t p = 5 µs sine 780 A V F 1.0 Apk, = 125 C 0.62 V Range - 55 to 175 C VOLTAGE RATINGS PARAMETER SYMBOL BQPbF 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 I F(AV) 50 % duty cycle at T L = 152 C, rectangular waveform 1.0 A Maximum peak one cycle 5 µs sine or 3 µs rect. pulse Following any rated 780 I FSM load condition and with A non-repetitive surge current ms sine or 6 ms rect. pulse rated V RRM applied 38 Non-repetitive avalanche energy E AS = 25 C, I AS = 0.5 A, L = 8 mh 1.0 mj Current decaying linearly to zero in 1 µs Repetitive avalanche current I AR 0.5 A Frequency limited by maximum V A = 1.5 x V R typical * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: For technical questions, contact: diodes-tech@vishay.com Revision: 15-Apr-08 1

2 BQPbF Schottky Rectifier, 1 A ELECTRICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS Maximum forward voltage drop See fig. 1 Note (1) Pulse width < 300 µs, duty cycle < 2 % V FM (1) 1 A 0.78 = 25 C 2 A A 0.62 = 125 C 2 A 0.72 Maximum reverse leakage current = 25 C 0.5 I RM See fig. 2 V R = Rated V R = 125 C 1 ma Typical junction capacitance C T V R = 5 V DC, (test signal range khz to 1 MHz) 25 C 42 pf Typical series inductance L S Measured lead to lead 5 mm from package body 2.0 nh Maximum voltage rate of charge dv/dt Rated V R 000 V/µs V THERMAL - MECHANICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS Maximum junction and storage temperature range T (1) J, T Stg - 55 to 175 C Maximum thermal resistance, junction to lead R (2) thjl DC operation 36 Maximum thermal resistance, junction to ambient R thja 80 C/W Approximate weight 0. g oz. Marking device Case style SMB (similar DO-214AA) V1J Notes dp (1) tot < thermal runaway condition for a diode on its own heatsink d R thja (2) Mounted 1" square PCB For technical questions, contact: diodes-tech@vishay.com Document Number: Revision: 15-Apr-08

3 Schottky Rectifier, 1 A BQPbF I F - Instantaneous Forward Current (A) 1 = 175 C = 125 C = 25 C I R - Reverse Current (ma) = 175 C = 150 C = 125 C = C = 75 C = 50 C = 25 C V FM - Forward Voltage Drop (V) Fig. 1 - Maximum Forward Voltage Drop Characteristics V R - Reverse Voltage (V) 80 Fig. 2 - Typical Peak Reverse Current vs. Reverse Voltage C T - Junction Capacitance (pf) = 25 C V R - Reverse Voltage (V) 80 Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage Z thjc - Thermal Impedance ( C/W) 1 D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20 Single pulse. (thermal resistance) 2. Peak = P DM x Z thjc + T C t 1 - Rectangular Pulse Duration (s) P DM Notes: 1. Duty factor D = t 1 /t 2 t 1 t 2 Fig. 4 - Maximum Thermal Impedance Z thjc Characteristics (Per Leg) Document Number: For technical questions, contact: diodes-tech@vishay.com Revision: 15-Apr-08 3

4 BQPbF Schottky Rectifier, 1 A Allowable Lead Temperature ( C) See note (1) DC Square wave (D = 0.50) Rated V R applied D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = Average Power Loss (W) D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 DC RMS limit I F(AV) - Average Forward Current (A) I F(AV) - Average Forward Current (A) Fig. 5 - Maximum Average Forward Current vs. Allowable Lead Temperature Fig. 6 - Maximum Average Forward Dissipation vs. Average Forward Current I FSM - Non-Repetitive Surge Current (A 0 At any rated load condition and with rated V RRM applied following surge t p - Square Wave Pulse Duration (µs) Fig. 7 - Maximum Peak Surge Forward Current vs. Pulse Duration Note (1) Formula used: T C = - (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 R1 x I R (1 - D); I R at V R1 = 80 % rated V R For technical questions, contact: diodes-tech@vishay.com Document Number: Revision: 15-Apr-08

5 Schottky Rectifier, 1 A BQPbF ORDERING INFORMATION TABLE Device code B Q TR PbF Current rating 2 - B = Single lead diode 3 - Q = Schottky Q series 4 - Voltage rating ( = V) 5 - None = Box (0 pieces) TR = Tape and reel (3000 pieces) 6 - None = Standard production PbF = Lead (Pb)-free Dimensions Part marking information Packaging information SPICE model LINKS TO RELATED DOCUMENTS Document Number: For technical questions, contact: diodes-tech@vishay.com Revision: 15-Apr-08 5

6 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, Vishay ), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay s terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 90 Revision: 18-Jul-08 1