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LNBH21 Datasheet(PDF) 10 Page - STMicroelectronics |
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LNBH21 Datasheet(HTML) 10 Page - STMicroelectronics |
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10 / 20 page  LNBH21 10/20 ELECTRICAL CHARACTERISTICS FOR LNBP SERIES (TJ = 0 to 85°C, EN=1, TTX=0/1, DSQIN=LOW, LLC=TEN=PCL=VSEL=0, VIN=12V, IO=50mA, unless otherwise specified. See software description section for I2C access to the system register). Symbol Parameter Test Conditions Min. Typ. Max. Unit VIN Supply Voltage IO = 750 mA TEN=VSEL=LLC=1 8 15 V II Supply Current EN=TEN=VSEL=LLC=1, NO LOAD 20 40 mA EN=0 3.5 7 VO Output Voltage IO = 750 mA VSEL=1 LLC=0 17.3 18 18.7 V LLC=1 18.7 19.5 20.3 VO Output Voltage IO = 750 mA VSEL=0 LLC=0 12.75 13.25 13.75 V LLC=1 13.75 14.25 14.75 ∆V O Line Regulation VIN1= 8 to 15V VSEL=0 5 40 mV VSEL=1 5 60 ∆V O Load Regulation VSEL=0 or 1, IO = 50 to 750mA 200 mV IMAX Output Current Limiting ISEL = Floating or V > 3.3V 750 1000 mA ISEL = GND 450 700 ISC Output Short Circuit Current VSEL=0 300 mA VSEL=1 200 tOFF Dynamic Overload protection OFF Time PCL=0 Output Shorted 900 ms tON Dynamic Overload protection ON Time PCL=0 Output Shorted tOFF/10 ms fTONE Tone Frequency TEN=1 20 22 24 KHz ATONE Tone Amplitude TEN=1 0.55 0.72 0.9 VPP DTONE Tone Duty Cycle TEN=1 40 50 60 % tr,tf Tone Rise and Fall Time TEN=1 5 8 15 µs GEXTM External Modulation Gain ∆V OUT/∆VEXTM, f = 10Hz to 50KHz 6 VEXTM External Input Voltage AC Coupling 400 mVPP ZEXTM External Modulation Impedance f = 10Hz to 50KHz 260 Ω fSW DC/DC Converter Switching Frequency 220 kHz fDETIN Tone Detector Frequency Capture Range 0.4Vpp sinewave 18 24 kHz VDETIN Tone Detector Input Amplitude fIN=22kHz sinewave 0.2 1.5 VPP ZDETIN Tone Detector Input Impedance 150 k Ω VOL DSQOUT Pin Logic LOW Tone present IOL=2mA 0.3 0.5 V IOZ DSQOUT Pin Leakage Current Tone absent VOH =6V 10 µA VIL DSQIN Input Pin Logic LOW 0.8 V VIH DSQIN Input Pin Logic HIGH 2V IIH DSQIN Pins Input Current VIH =5V 15 µA IOBK Output Backward Current EN=0, VOBK = 18V -6 -15 mA TSHDN Temperature Shutdown Threshold 150 °C ∆T SHDN Temperature Shutdown Hysteresis 15 °C |
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Similar Description - LNBH21 |
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