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LB1854 Fiches technique(PDF) 5 Page - Sanyo Semicon Device |
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LB1854 Fiches technique(HTML) 5 Page - Sanyo Semicon Device |
5 / 6 page No. 4476-5/6 LB1854M Continued from preceding page. Unit (resistance: Ω) Pin No. Symbol Pin voltage Equivalent circuit Function 7 8 9 10 11 12 13 18 19 UOUT VOUT WOUT Rf VCC2 CL GC FGOUT2 FGOUT1 4.3 to 6.5 V 0 V min VCC2 max 0 V min VCC2 max Output pins Output transistor ground Feedback can be applied to the control amplifier by inserting resistor between this pin and GND and detecting the output current as a voltage. The overcurrent protection circuit (current limiter) operates by detecting the voltage on this pin. Power supply provided to all blocks other than the output block This voltage must be stabilized so that no ripple or other noise is present. The current limiter operates when the Rf pin reaches the same potential as pin 12. The pin 12 potential is set up externally. Control input to output gain switching pin High level (4 to 5 V): 34 dB Middle level (2 to 3 V) or open: 40 dB (low speed): 34 dB (high speed) Low level (0 to 1 V): 40 dB However, note that this applies when VCC2 is 5 V. FG Schmitt amplifier output FG amplifier output Continued on next page. |
Numéro de pièce similaire - LB1854 |
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Description similaire - LB1854 |
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