A8283SB Просмотр технического описания (PDF) - Allegro MicroSystems

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A8283SB

LNB SUPPLY AND CONTROL-VOLTAGE REGULATOR

Allegro MicroSystems 

8283

LNB SUPPLY AND

CONTROL-VOLTAGE REGULATOR

EIOLUTE=C5T0RmICAAL(uCnHleAssRAotChTeErwRiIsSeTInCoSteadt).TA = 25°C, ENT = L, EN = H, OSEL = H, LLC = L, VIN = 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)

VOL

IOZ

VIL

VIH

IIH

IIN

TJ

∆VBUCK

fO

IswM

Vsw

IOL = 8 mA

VOH = 5.5 V

VIH = 5 V

Outputs disabled (EN = L)

ENT = H, IO = 600 mA, VO = 13 V

VBULK – VO

16 • ftone

OSEL = L

OSEL = L, Isw = 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

115 Northeast Cutoff, Box 15036

4

Worcester, Massachusetts 01615-0036 (508) 853-5000

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