8283 Datasheet, PDF (4/8 Pages) Allegro MicroSystems – LNB SUPPLY AND CONTROL-VOLTAGE REGULATOR

8283
LNB SUPPLY AND
CONTROL-VOLTAGE REGULATOR
EI_OL_UTE=C5T0RmICAAL(uCnHleAssRAotChTeErwRiIsSeTInCoSteadt).T_A = 25°C, ENT = L, EN = H, OSEL = H, LLC = L, V_IN = 24 V,
Limits
Characteristic
Symbol Test Conditions
Min. Typ. Max. Units
Overload Flag Logic Low
Overload Flag Leakage Current
Logic Input Voltage
Logic Input Current
Supply Current
Thermal Shutdown Temp.
Linear Regulator Voltage Drop
Switching Frequency
Bypass Switch Current Limit
Bypass Switch Voltage Drop
(MI to LNB)
V_OL
I_OZ
V_IL
V_IH
I_IH
I_IN
T_J
∆V_BUCK
f_O
I_swM
V_sw
I_OL = 8 mA
V_OH = 5.5 V
V_IH = 5 V
Outputs disabled (EN = L)
ENT = H, I_O = 600 mA, V_O = 13 V
V_BULK – V_O
16 • f_tone
OSEL = L
OSEL = L, I_sw = 300 mA
— 0.28 —
V
— <1.0 — µA
—
—
0.8
V
2.0 —
—
V
— <1.0 — µA
— 0.5 — mA
— 382 — mA
— 165 — °C
— 0.8 —
V
320 352 384 kHz
630 900 — mA
— 0.15 —
V
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4
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