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8283 Datasheet, PDF (3/8 Pages) Allegro MicroSystems – LNB SUPPLY AND CONTROL-VOLTAGE REGULATOR | |||
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8283
LNB SUPPLY AND
CONTROL-VOLTAGE REGULATOR
ELECTRICAL CHARACTERISTICS at TA = 25°C, ENT = L, EN = H, OSEL = H, LLC = L, VIN = 24 V,
IO = 50 mA (unless otherwise noted).
Limits
Characteristic
Symbol Test Conditions
Min. Typ. Max. Units
Supply Voltage
VIN
Output Voltage
VO
Line Regulation
âVO
Load Regulation
Current-Limiting Threshold
Tone Frequency
Tone Amplitude
Tone Duty Cycle
Tone Rise or Fall Time
External Modulation Gain
External Modulation
Input Voltage
âVO
VOM(th)
ftone
Vtone(PP)
dctone
tr, tf
Gmod
Vmod(PP)
IO = 600 mA, VSEL0 = L, VSEL1 = L, LLC = L
â 3.3 + âVBUCK 47
V
IO = 600 mA, VSEL0 = L, VSEL1 = L, LLC = L 12.5 13 13.5 V
IO = 600 mA, VSEL0 = L, VSEL1 = L, LLC = H 13.4 14 14.6 V
IO = 600 mA, VSEL0 = L, VSEL1 = H, LLC = L 17.3 18 18.7 V
IO = 600 mA, VSEL0 = L, VSEL1 = H, LLC = H 18.2 19 19.8 V
IO = 600 mA, VSEL0 = H, VSEL1 = L, LLC = L 11.5 12 12.5 V
IO = 600 mA, VSEL0 = H, VSEL1 = L, LLC = H 12.5 13 13.5 V
IO = 600 mA, VSEL0 = H, VSEL1 = H, LLC = L 19.2 20 20.8 V
IO = 600 mA, VSEL0 = H, VSEL1 = H, LLC = H 20.2 21 21.8 V
VO = 13 V, VI = 16 to 40 V
â 4.0 40 mV
VO = 18 V, VI = 21 to 40 V
â 4.0 40 mV
VO = 13 or 18 V, IO = 50 to 600 mA
â 80 180 mV
125 135 145 mV
ENT = H
20 22 24 kHz
ENT = H
550 680 800 mV
ENT = H
40
50
60
%
ENT = H
5.0 10 15 µs
âVO/âVmod, f = 10 Hz to 40 kHz
AC coupling
â 5.0 â V/V
â
â 160 mV
External Modulation
Impedance
Zmod
f = 10 Hz to 40 kHz
â 5.0 â kâ¦
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