FOD2742B Fairchild Semiconductor, FOD2742B Datasheet
FOD2742B
Specifications of FOD2742B
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FOD2742B Summary of contents
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... CTR 100% to 200% • 2,500V RMS isolation • UL approval E90700, Volume 2 • VDE approval 136616 • Low temperature coefficient 50 ppm/°C max • FOD2742A: tolerance 0.5% FOD2742B: tolerance 1% FOD2742C: tolerance 2% APPLICATIONS • Power supplies regulation • converters PIN DEFINITIONS ...
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... Derate linearly from 25° rate of 1.42 mW/ °C. 3. Derate linearly from 25° rate of 2.42 mW/ °C. 4. Functional operation under these conditions is not implied. Permanent damage may occur if the device is subjected to conditions outside these ratings. © 2003 Fairchild Semiconductor Corporation OPTICALLY ISOLATED FOD2742B FOD2742 ...
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... The dynamic impedance is defined as |Z (see Figure 2), the total dynamic impedance of the circuit is given by: ∆V R1 ≈ × ------- - ------- - ∆I OUT, TOT OUT R2 © 2003 Fairchild Semiconductor Corporation FOD2742B (T = 25°C Unless otherwise specified.) A Test Conditions ( mA (fig. 1) LED COMP mA (fig. 1) LED COMP ...
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... Vcm, to assure that the output will remain high. Common mode transient immunity at output low is the maximum tolerable (negative) dVcm/dt on the trailing edge of the common pulse signal,Vcm, to assure that the output will remain low. © 2003 Fairchild Semiconductor Corporation FOD2742B (T = 25°C Unless otherwise specified.) A ...
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... REF 5 FIG (min) TEST CIRCUIT REF F, LED I (LED REF FIG TEST CIRCUIT REF FIG TEST CIRCUIT CEO © 2003 Fairchild Semiconductor Corporation FOD2742B FIG. 2. ∆ (LED) I CEO Page OPTICALLY ISOLATED ERROR AMPLIFIER FOD2742C I (LED COMP R2 V REF 5 ∆V TEST CIRCUIT REF/ ...
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... FOD2742A OUT 2.2kΩ V OUT © 2003 Fairchild Semiconductor Corporation FOD2742B 0 Fig. 7 Frequency Response Test Circuit VCM _ + 10V P-P Fig. 8 CMH and CML Test Circuit Page OPTICALLY ISOLATED ERROR AMPLIFIER FOD2742C 47Ω 1µ 0.47V = 12/9/04 ...
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... T - Ambient Temperature (°C) A Fig. 12 – Off-State Current vs. Ambient Temperature V = 37V LED 100 10 1 -40 - Ambient Temperature (°C) A © 2003 Fairchild Semiconductor Corporation FOD2742B 1.0 0.5 0.0 -0.5 -1 100 100 Page OPTICALLY ISOLATED ERROR AMPLIFIER FOD2742C Fig. 9b – LED Current vs. Cathode Voltage T = 25° ...
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... I - Forward Current (mA) LED Fig. 18 – Collector Current vs. Collector Voltage 25° Collector-Emitter Voltage (V) CE © 2003 Fairchild Semiconductor Corporation FOD2742B 100 0.26 0.24 0°C 0.22 25°C 0.20 70°C 0.18 0.16 0.14 0.12 0.10 -40 100 -0.22 -0. 20mA LED -0.26 -0.28 -0 ...
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... FOD2742A TYPICAL PERFORMANCE CURVES © 2003 Fairchild Semiconductor Corporation FOD2742B Fig. 20 – Voltage Gain vs. Frequency 5 VCC=10V IF=10mA 100Ω 1kΩ -10 - 100 Frequency - kHz Page OPTICALLY ISOLATED ERROR AMPLIFIER FOD2742C RL = 500Ω 1000 12/9/04 ...
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... R TOP © 2003 Fairchild Semiconductor Corporation OPTICALLY ISOLATED ERROR AMPLIFIER FOD2742B Compensation The compensation pin of the FOD2742 provides the opportu- nity for the designer to design the frequency response of the converter. A compensation network may be placed between the COMP pin and the FB pin. In typical low-bandwidth systems, a 0.1µ ...
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... © 2003 Fairchild Semiconductor Corporation FOD2742B 0.275 (6.99) 0.010 (0.25) 0.006 (0.16) 0.244 (6.19) 0.224 (5.69) Tape and reel (500 units per reel) VDE0884, Tape and reel (500 units per reel) Tape and reel (2,500 units per reel) VDE0884, Tape and reel (2,500 units per reel) Defi ...
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... Time (Minute) © 2003 Fairchild Semiconductor Corporation FOD2742B 8.0 ± 0.10 2.0 ± 0.05 4.0 ± 0.10 6.40 ± 0.20 230°C, 10–30 s • Peak reflow temperature: 245°C (package surface temperature) • Time of temperature higher than 183°C for 120–180 seconds • ...
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... Fairchild Semiconductor Corporation OPTICALLY ISOLATED ERROR AMPLIFIER FOD2742B 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness. ...