Datasheet IL300 (Vishay) - 7

ManufacturerVishay
DescriptionLinear Optocoupler, High Gain Stability, Wide Bandwidth
Pages / Page11 / 7 — IL300
File Format / SizePDF / 191 Kb
Document LanguageEnglish

IL300

IL300

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IL300
www.vishay.com Vishay Semiconductors The value of R5 depends upon the IL300 Transfer Gain (K3). K3 is targeted to be a unit gain device, however to minimize + R1 ISO the part to part Transfer Gain variation, Infineon offers K3 To control Voltage input AMP monitor graded into ± 5 % bins. R5 can determined using the +1 following equation, - R2 VOUT R3 x R1 + R2   R5 = -------------- x --------------------- V R2 x K3 MONITOR  iil300_16 Fig. 11 - Isolated Control Amplifier or if a unity gain amplifier is being designed For best input offset compensation at U1, R2 will equal R3. (VMONITOR = VOUT, R1 = 0), the equation simplifies to: The value of R1 can easily be calculated from the following. R3  V R5 = ----  MONITOR    K3 = -------------  R1 R2 x - 1  V   a  110/ DC output AC/DC AC/DC 220 Switch Xformer rectifier main rectifier Switch Control mode Isolated regulator feedback TDA4918 iil300_17 Fig. 12 - Switching Mode Power Supply R1 IL300 20 kΩ 1 8 3 7 V V R4 monitor + CC Va 100 Ω U1 6 2 7 LM201 K2 R2 2 1 K1 30 kΩ Vb - 8 V 3 6 CC VCC 4 100 pF Vout To 4 5 control R3 input R5 30 kΩ 30 kΩ iil300_18 Fig. 13 - DC Coupled Power Supply Feedback Amplifier Rev. 1.8, 02-Jun-14
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Document Number: 83622 For technical questions, contact: optocoupleranswers@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000