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LNBH26LPQR Datasheet(PDF) 20 Page - STMicroelectronics |
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LNBH26LPQR Datasheet(HTML) 20 Page - STMicroelectronics |
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20 / 28 page  Electrical characteristics LNBH26L 20/28 Doc ID 022876 Rev 1 8 Electrical characteristics Refer to Section 5, TJ from 0 to 85 °C, all DATA 1..4 register bits set to 0 unless VSEL1 = 1, RSEL = 11 k Ω, DSQIN = LOW, VIN = 12 V, IOUT = 50 mA, unless otherwise stated. Typical values are referred to TJ = 25 °C. VOUT = VOUT pin voltage. See software description section for I²C access to the system register ( Section 6 and Section 7). Table 12. Electrical characteristics of section A/B Symbol Parameter Test conditions Min. Typ. Max. Unit VIN Supply voltage (1) 812 16 V IIN Supply current Both sections A and B enabled, IOUT = 0 mA 12 mA 22 kHz tone enabled (TEN-A/B = 1, DSQIN-A/B = High), IOUT = 0 mA 19 Both sections A and B set in standby: VSEL1=VSEL2=VSEL3=VSEL4=0 2 VOUT Output voltage total accuracy Valid at any VOUT selected level -3.5 +3.5 % VOUT Line regulation VIN = 8 to 16 V 40 mV VOUT Load regulation IOUT from 50 to 500 mA 75 100 IMAX Output current limiting thresholds RSEL = 15 k Ω 500 750 mA RSEL = 20 k Ω 350 550 ISC Output short-circuit current RSEL = 15 k Ω 350 mA SS Soft-start time VOUT from 0 to 13 V 4 ms SS Soft-start time VOUT from 0 to 18 V 6 ms T13-18 Soft transition rise time VOUT from 13 to 18 V 1.5 ms T18-13 Soft transition fall time VOUT from 18 to 13 V 1.5 ms TOFF Dynamic overload protection OFF time PCL = 0, output shorted 900 ms TON Dynamic overload protection ON time PCL = 0, output shorted TOFF/ 10 ATONE Tone amplitude DSQIN=High, EXTM=0, TEN=1 IOUT from 0 to 500 mA CBUS from 0 to 750 nF 0.55 0.675 0.8 VPP FTONE Tone frequency DSQIN=High, EXTM=0, TEN=1 20 22 24 kHz DTONE Tone duty cycle 43 50 57 % tr, tf Tone rise or fall time (2) 5 8 15 µs EffDC/DC DC-DC converter efficiency IOUT = 500 mA 93 % FSW DC-DC converter switching frequency 440 kHz UVLO Undervoltage lockout thresholds UVLO threshold rising 4.8 V UVLO threshold falling 4.7 |
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