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HCPL4503M Scheda tecnica(PDF) 5 Page - Fairchild Semiconductor |
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HCPL4503M Scheda tecnica(HTML) 5 Page - Fairchild Semiconductor |
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5 / 12 page  4/29/04 Page 5 of 12 © 2004 Fairchild Semiconductor Corporation HIGH SPEED TRANSISTOR OPTOCOUPLERS HCPL4503M Notes 1. Current Transfer Ratio is defined as a ratio of output collector current, IO, to the forward LED input current, IF, times 100%. 2. The 1.9 k Ω load represents 1 TTL unit load of 1.6 mA and 5.6 kΩ pull-up resistor. 3. Common mode transient immunity in logic high level is the maximum tolerable (positive) dVcm/dt on the leading edge of the common mode pulse signal VCM, to assure that the output will remain in a logic high state (i.e., VO>2.0 V). Common mode transient immunity in logic low level is the maximum tolerable (negative) dVcm/dt on the trailing edge of the common mode pulse signal, VCM, to assure that the output will remain in a logic low state (i.e., VO<0.8 V). 4. Device is considered a two terminal device: Pins 1, 2, 3 and 4 are shorted together and Pins 5, 6, 7 and 8 are shorted together. ISOLATION CHARACTERISTICS (TA = 0 to 70°C Unless otherwise specified) Characteristics Test Conditions Symbol Min Typ** Max Unit Input-output insulation leakage current (Relative humidity = 45%) (TA = 25°C, t = 5 s) (VI-O = 3000 VDC) (Note 4) II-O 1.0 µA Withstand insulation test voltage (RH ≤ 50%, TA = 25°C) (Note 4) ( t = 1 min.) VISO 5,000 VRMS Resistance (input to output) (Note 9) (VI-O = 500 VDC) RI-O 1012 Ω Capacitance (input to output) (Note 4) (f = 1 MHz) CI-O 0.6 pF |
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