BAV99LT1 Preferred Device Dual Series Switching Diode MAXIMUM RATINGS (Each Diode) Rating Symbol Value Unit Reverse Voltage VR 70 Vdc Forward Current IF 215 mAdc IFM(surge) 500 mAdc Repetitive Peak Reverse Voltage VRRM 70 V Average Rectified Forward Current (Note 1.) (averaged over any 20 ms period) IF(AV) 715 mA Repetitive Peak Forward Current IFRM 450 mA Non–Repetitive Peak Forward Current t = 1.0 s t = 1.0 ms t = 1.0 S IFSM Peak Forward Surge Current http://onsemi.com ANODE 1 3 CATHODE/ANODE A MARKING DIAGRAM 3 2.0 1.0 0.5 1 A7 M 2 THERMAL CHARACTERISTICS Characteristic CATHODE 2 Symbol Max Unit PD 225 mW 1.8 mW/°C 556 °C/W Total Device Dissipation FR–5 Board (Note 1.) TA = 25°C Derate above 25°C Thermal Resistance, Junction to Ambient RJA CASE 318 SOT–23 STYLE 11 A7 = Device Code M = Date Code ORDERING INFORMATION Total Device Dissipation Alumina Substrate (Note 2.) TA = 25°C Derate above 25°C PD 300 mW 2.4 mW/°C °C/W Thermal Resistance, Junction to Ambient RJA 417 Junction and Storage Temperature Range TJ, Tstg –65 to +150 Device Package Shipping BAV99LT1 SOT–23 3000/Tape & Reel Preferred devices are recommended choices for future use and best overall value. °C OFF CHARACTERISTICS (TA = 25°C unless otherwise noted) (Each Diode) Characteristic Symbol Min Max Unit V(BR) 70 – Vdc Reverse Voltage Leakage Current (VR = 70 Vdc) (VR = 25 Vdc, TJ = 150°C) (VR = 70 Vdc, TJ = 150°C) IR – – – 2.5 30 50 Adc Diode Capacitance (VR = 0, f = 1.0 MHz) CD – 1.5 pF Forward Voltage VF – – – – 715 855 1000 1250 mVdc trr – 6.0 ns VFR – 1.75 V Reverse Breakdown Voltage (I(BR) = 100 µA) (IF = 1.0 mAdc) (IF = 10 mAdc) (IF = 50 mAdc) (IF = 150 mAdc) Reverse Recovery Time (IF = IR = 10 mAdc, iR(REC) = 1.0 mAdc) (Figure 1) RL = 100 Forward Recovery Voltage (IF = 10 mA, tr = 20 ns) 1. FR–5 = 1.0 0.75 0.062 in. 2. Alumina = 0.4 0.3 0.024 in. 99.5% alumina. Semiconductor Components Industries, LLC, 2000 September, 2000 – Rev. 1 1 Publication Order Number: BAV99LT1/D BAV99LT1 820 Ω +10 V 2k 100 µH 0.1 µF IF tr tp IF t trr 10% 0.1 µF DUT 50 Ω OUTPUT PULSE GENERATOR 90% 50 Ω INPUT SAMPLING OSCILLOSCOPE IR VR INPUT SIGNAL t iR(REC) = 1 mA OUTPUT PULSE (IF = IR = 10 mA; measured at iR(REC) = 1 mA) Notes: 1. A 2.0 kΩ variable resistor adjusted for a Forward Current (IF) of 10 mA. Notes: 2. Input pulse is adjusted so IR(peak) is equal to 10 mA. Notes: 3. tp » trr Figure 1. Recovery Time Equivalent Test Circuit CURVES APPLICABLE TO EACH DIODE 10 100 I R, REVERSE CURRENT (A) µ 10 TA = 85°C TA = 25°C 1.0 TA = -40°C 0.1 0.2 0.4 0.6 0.8 1.0 TA = 85°C 0.1 TA = 55°C 0.01 0.001 1.2 TA = 125°C 1.0 TA = 25°C 10 0 20 30 VF, FORWARD VOLTAGE (VOLTS) VR, REVERSE VOLTAGE (VOLTS) Figure 2. Forward Voltage Figure 3. Leakage Current 0.68 CD , DIODE CAPACITANCE (pF) IF, FORWARD CURRENT (mA) TA = 150°C 0.64 0.60 0.56 0.52 0 2 4 6 VR, REVERSE VOLTAGE (VOLTS) Figure 4. Capacitance http://onsemi.com 2 8 40 50 BAV99LT1 INFORMATION FOR USING THE SOT–23 SURFACE MOUNT PACKAGE MINIMUM RECOMMENDED FOOTPRINT FOR SURFACE MOUNTED APPLICATIONS Surface mount board layout is a critical portion of the total design. The footprint for the semiconductor packages must be the correct size to insure proper solder connection interface between the board and the package. With the correct pad geometry, the packages will self align when subjected to a solder reflow process. 0.037 0.95 0.037 0.95 0.079 2.0 0.035 0.9 0.031 0.8 inches mm SOT–23 SOT–23 POWER DISSIPATION into the equation for an ambient temperature TA of 25°C, one can calculate the power dissipation of the device which in this case is 225 milliwatts. The power dissipation of the SOT–23 is a function of the drain pad size. This can vary from the minimum pad size for soldering to a pad size given for maximum power dissipation. Power dissipation for a surface mount device is determined by TJ(max), the maximum rated junction temperature of the die, RθJA, the thermal resistance from the device junction to ambient, and the operating temperature, TA. Using the values provided on the data sheet for the SOT–23 package, PD can be calculated as follows: PD = PD = 150°C – 25°C 556°C/W = 225 milliwatts The 556°C/W for the SOT–23 package assumes the use of the recommended footprint on a glass epoxy printed circuit board to achieve a power dissipation of 225 milliwatts. There are other alternatives to achieving higher power dissipation from the SOT–23 package. Another alternative would be to use a ceramic substrate or an aluminum core board such as Thermal Clad. Using a board material such as Thermal Clad, an aluminum core board, the power dissipation can be doubled using the same footprint. TJ(max) – TA RθJA The values for the equation are found in the maximum ratings table on the data sheet. Substituting these values SOLDERING PRECAUTIONS • The soldering temperature and time shall not exceed 260°C for more than 10 seconds. • When shifting from preheating to soldering, the maximum temperature gradient shall be 5°C or less. • After soldering has been completed, the device should be allowed to cool naturally for at least three minutes. Gradual cooling should be used as the use of forced cooling will increase the temperature gradient and result in latent failure due to mechanical stress. • Mechanical stress or shock should not be applied during cooling. The melting temperature of solder is higher than the rated temperature of the device. When the entire device is heated to a high temperature, failure to complete soldering within a short time could result in device failure. Therefore, the following items should always be observed in order to minimize the thermal stress to which the devices are subjected. • Always preheat the device. • The delta temperature between the preheat and soldering should be 100°C or less.* • When preheating and soldering, the temperature of the leads and the case must not exceed the maximum temperature ratings as shown on the data sheet. When using infrared heating with the reflow soldering method, the difference shall be a maximum of 10°C. * Soldering a device without preheating can cause excessive thermal shock and stress which can result in damage to the device. http://onsemi.com 3 BAV99LT1 PACKAGE DIMENSIONS SOT–23 (TO–236AB) PLASTIC PACKAGE CASE 318–09 ISSUE AF A L 3 1 V B 2 S DIM A B C D G H J K L S V G C D NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. MAXIUMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL. H K J INCHES MIN MAX 0.1102 0.1197 0.0472 0.0551 0.0385 0.0498 0.0140 0.0200 0.0670 0.0826 0.0040 0.0098 0.0034 0.0070 0.0180 0.0236 0.0350 0.0401 0.0830 0.0984 0.0177 0.0236 MILLIMETERS MIN MAX 2.80 3.04 1.20 1.40 0.99 1.26 0.36 0.50 1.70 2.10 0.10 0.25 0.085 0.177 0.45 0.60 0.89 1.02 2.10 2.50 0.45 0.60 STYLE 11: PIN 1. ANODE 2. CATHODE 3. CATHODEANODE Thermal Clad is a trademark of the Bergquist Company ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. PUBLICATION ORDERING INFORMATION NORTH AMERICA Literature Fulfillment: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303–675–2175 or 800–344–3860 Toll Free USA/Canada Fax: 303–675–2176 or 800–344–3867 Toll Free USA/Canada Email: [email protected] Fax Response Line: 303–675–2167 or 800–344–3810 Toll Free USA/Canada N. American Technical Support: 800–282–9855 Toll Free USA/Canada CENTRAL/SOUTH AMERICA: Spanish Phone: 303–308–7143 (Mon–Fri 8:00am to 5:00pm MST) Email: ONlit–[email protected] ASIA/PACIFIC: LDC for ON Semiconductor – Asia Support Phone: 303–675–2121 (Tue–Fri 9:00am to 1:00pm, Hong Kong Time) Toll Free from Hong Kong & Singapore: 001–800–4422–3781 Email: ONlit–[email protected] JAPAN: ON Semiconductor, Japan Customer Focus Center 4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–0031 Phone: 81–3–5740–2700 Email: [email protected] EUROPE: LDC for ON Semiconductor – European Support German Phone: (+1) 303–308–7140 (Mon–Fri 2:30pm to 7:00pm CET) Email: ONlit–[email protected] French Phone: (+1) 303–308–7141 (Mon–Fri 2:00pm to 7:00pm CET) Email: ONlit–[email protected] English Phone: (+1) 303–308–7142 (Mon–Fri 12:00pm to 5:00pm GMT) Email: [email protected] ON Semiconductor Website: http://onsemi.com EUROPEAN TOLL–FREE ACCESS*: 00–800–4422–3781 *Available from Germany, France, Italy, UK, Ireland For additional information, please contact your local Sales Representative. http://onsemi.com 4 BAV99LT1/D