LESHAN RADIO COMPANY, LTD. Surface Mount Schottky Power Rectifier Pb-Free package is available LMBR0540T1G The Schottky Power Rectifier employs the Schottky Barrier principle with a barrier metal that produces optimal forward voltage drop−reverse current tradeoff. Ideally suited for low voltage, high frequency rectification, or as a free wheeling and polarity protection diodes in surface mount applications where compact size and weight are critical to the system. This package provides an alternative to the leadless 34 MELF style package. Features • • • • • Guardring for Stress Protection Very Low Forward Voltage Epoxy Meets UL 94 V−0 @ 0.125 in Package Designed for Optimal Automated Board Assembly We declare that the material of product compliance with RoHS requirements. SOD–123 1 Cathode 2 Anode Mechanical Characteristics • Reel Options:LMBR0540T1G= 3,000 per 7 inch reel/8 mm tape • • • • • • LMBR0540T3G=10,000 per 13 inch reel/8 mm tape Device Marking: B4 Polarity Designator: Cathode Band Weight: 11.7 mg (approximately) Case: Epoxy Molded Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily Solderable Lead and Mounting Surface Temperature for Soldering Purposes: 260°C max. for 10 Seconds Rev.O 1/5 LESHAN RADIO COMPANY, LTD. LMBR0540T1G MAXIMUM RATINGS Rating Symbol Value Unit Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage VRRM VRWM VR 40 V Average Rectified Forward Current (At Rated VR, TC = 115°C) IO 0.5 A Peak Repetitive Forward Current (At Rated VR, Square Wave, 20 kHz, TC = 115°C) IFRM 1.0 A Non−Repetitive Peak Surge Current (Surge Applied at Rated Load Conditions Halfwave, Single Phase, 60 Hz) IFSM 5.5 A Tstg, TC −55 to +150 °C TJ −55 to +150 °C dv/dt 1000 V/ms Storage/Operating Case Temperature Range Operating Junction Temperature Voltage Rate of Change (Rated VR, TJ = 25°C) Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. THERMAL CHARACTERISTICS Rating Thermal Resistance − Junction−to−Lead (Note 1) Thermal Resistance − Junction−to−Ambient (Note 2) Symbol Value Unit Rtjl Rtja 118 206 °C/W ELECTRICAL CHARACTERISTICS Maximum Instantaneous Forward Voltage (Note 3) vF (iF = 0.5 A) (iF = 1 A) Maximum Instantaneous Reverse Current (Note 3) (VR = 40 V) (VR = 20 V) IR TJ = 25°C TJ = 100°C 0.55 0.65 0.53 0.63 TJ = 25°C TJ = 100°C 20 10 13,000 5,000 V mA 1. Mounted with minimum recommended pad size, PC Board FR4. 2. 1 inch square pad size (1 X 0.5 inch for each lead) on FR4 board. 3. Pulse Test: Pulse Width ≤ 250 ms, Duty Cycle ≤ 2.0%. Rev.O 2/5 LESHAN RADIO COMPANY, LTD. 100 10 25°C 1.0 TJ = −40°C TJ = 125°C TJ = 25°C TJ = 100°C 0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.0 TJ = 125°C TJ = 100°C TJ = 25°C 0.1 0.2 0.4 0.6 0.8 1.0 VF, MAXIMUM INSTANTANEOUS FORWARD VOLTAGE (VOLTS) Figure 1. Typical Forward Voltage Figure 2. Maximum Forward Voltage 1.2 100E−3 I R, MAXIMUM REVERSE CURRENT (AMPS) I R, REVERSE CURRENT (AMPS) 10 vF, INSTANTANEOUS FORWARD VOLTAGE (VOLTS) 100E−3 10E−3 TJ = 125°C 1.0E−3 10E−3 TJ = 100°C 1.0E−3 100E−6 100E−6 TJ = 100°C 10E−6 1.0E−6 100E−9 IF, INSTANTANEOUS FORWARD CURRENT (AMPS) i F, INSTANTANEOUS FORWARD CURRENT (AMPS) LMBR0540T1G TJ = 25°C 0 10 20 30 40 10E−6 TJ = 25°C 1.0E−6 100E−9 0 10 20 30 VR, REVERSE VOLTAGE (VOLTS) VR, REVERSE VOLTAGE (VOLTS) Figure 3. Typical Reverse Current Figure 4. Maximum Reverse Current Rev.O 3/5 40 LESHAN RADIO COMPANY, LTD. 0.8 PFO , AVERAGE POWER DISSIPATION (WATTS) I O , AVERAGE FORWARD CURRENT (AMPS) LMBR0540T1G dc 0.7 FREQ = 20 kHz SQUARE WAVE 0.6 0.5 Ipk/Io = p 0.4 Ipk/Io = 5 0.3 Ipk/Io = 10 0.2 Ipk/Io = 20 0.1 0 0 40 20 60 80 100 120 SQUARE WAVE 0.35 dc Ipk/Io = p 0.30 Ipk/Io = 5 0.25 Ipk/Io = 10 0.20 Ipk/Io = 20 0.15 0.10 0.05 0 0 0.1 0.2 0.3 0.4 0.6 0.5 0.7 TL, LEAD TEMPERATURE (°C) IO, AVERAGE FORWARD CURRENT (AMPS) Figure 5. Current Derating Figure 6. Forward Power Dissipation TJ , DERATED OPERATING TEMPERATURE ( °C) C, CAPACITANCE (pF) TJ = 25°C 10 5.0 0.40 140 100 0 0.45 10 15 20 25 30 35 40 0.8 126 124 Rtja = 118°C/W 122 120 118 149°C/W 116 180°C/W 114 206°C/W 112 110 228°C/W 0 5.0 10 15 20 25 30 35 40 VR, REVERSE VOLTAGE (VOLTS) VR, DC REVERSE VOLTAGE (VOLTS) Figure 7. Capacitance Figure 8. Typical Operating Temperature Derating* * Reverse power dissipation and the possibility of thermal runaway must be considered when operating this device under any reverse voltage conditions. Calculations of TJ therefore must include forward and reverse power effects. The allowable operating TJ may be calculated from the equation: TJ = TJmax − r(t)(Pf + Pr) where r(t) = thermal impedance under given conditions, Pf = forward power dissipation, and Pr = reverse power dissipation This graph displays the derated allowable TJ due to reverse bias under DC conditions only and is calculated as TJ = TJmax − r(t)Pr, where r(t) = Rthja. For other power applications further calculations must be performed. Rev.O 4/5 LESHAN RADIO COMPANY, LTD. LMBR0540T1G PACKAGE DIMENSIONS SOD–123 A ÂÂÂ ÂÂÂ C NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. H 1 K DIM A B C D E H J K B MILLIMETERS MIN MAX 1.40 1.80 2.55 2.85 0.95 1.35 0.50 0.70 0.25 ––– 0.00 0.10 ––– 0.15 3.55 3.85 E 2 D INCHES MIN MAX 0.055 0.071 0.100 0.112 0.037 0.053 0.020 0.028 0.004 ––– 0.000 0.004 ––– 0.006 0.140 0.152 STYLE 1: PIN 1. CATHODE 2. ANODE J RECOMMENDED FOOTPRINT FOR SOD–123 ÉÉÉÉ ÉÉÉÉ ÉÉÉÉ ÉÉÉÉ ÉÉÉÉ ÉÉÉÉ ÉÉÉÉ ÉÉÉÉ ÉÉÉÉ ÉÉÉÉ 0.91 0.036 2.36 0.093 4.19 0.165 1.22 0.048 mm inches SOD–123 Rev.O 5/5