A8287 데이터 시트보기 (PDF) - Allegro MicroSystems

부품명

상세내역

제조사

A8287

LNB Supply and Control Voltage Regulator

Allegro MicroSystems 

A8285/A8287

LNB Supply and Control Voltage Regulator

ELECTRICAL CHARACTERISTICS (continued) at TA = +25°C, VIN = 10 to 16 V (unless otherwise noted)

Characteristics

Tone Characteristics

Tone Frequency

Symbol

fTONE

–

Test Conditions

Min. Typ. Max. Units

20 22 24 kHz

Tone Pull-Down Current

Tone Turn-On and Turn-Off Delays

External Tone Logic Input

Input Leakage

Tone Detector Input Amplitude

Tone Detector Frequency Capture

Tone Detector Input Impedance

Tone Detector Output Voltage

Tone Detector Output Leakage

I2C Interface

Logic Input (SDA,SCL) Low Level

Logic Input (SDA,SCL) High Level

Input Hysteresis

Logic Input Current

Output Voltage (SDA, IRQ)

Output Leakage (SDA, IRQ)

SCL Clock Frequency

Output Fall Time

Bus Free Time Between Stop and Start

Hold Time for Start Condition

Setup Time for Start Condition

SCL Low Time

SCL High Time

Data Setup Time

Data Hold Time

Setup Time for Stop Condition

ITONE

tDEL

VIH

VIL

IIL

VTDI

fTDI

ZTDI

VOL

IOL

–

Using EXTM pin

–

–

–

fIN = 22 kHz

600 mVpp sinewave

See note 1

Tone present, ILOAD = 3 mA

Tone absent, VO = 7 V

30 40 50 mA

–

–

1

μs

2

–

–

V

–

– 0.8 V

–1 –

1

μA

260 – 1000 mV

17.6 – 26.4 kHz

– 8.6 –

kΩ

–

– 0.4 V

–

–

10 μA

VIL

–

–

– 0.8 V

VIH

–

2

–

–

V

VHYS

–

– 150 – mV

IIN

VIN = 0 V to 7 V

VOL

ILOAD = 3 mA

–10 <±1.0 10 μA

–

– 0.4 V

IOL

VO = 0 V to 7 V

–

–

10

μA

fCLK

–

0

– 400 kHz

tOF

VIH to VIL

–

– 250 ns

tBUF See I2C Interface Timing Diagram

1.3 –

–

μs

tHD:STA See I2C Interface Timing Diagram

0.6 –

–

μs

tSU:STA See I2C Interface Timing Diagram

0.6 –

–

μs

tLOW See I2C Interface Timing Diagram

1.3 –

–

μs

tHIGH See I2C Interface Timing Diagram

0.6 –

–

μs

tSU:DAT See note1; I2C Interface Timing Diagram 100 –

–

ns

tHD:DAT See I2C Interface Timing Diagram

0

– 900 ns

tSU:STO See I2C Interface Timing Diagram

0.6 –

–

μs

Continued on next page

4

www.allegromicro.com

115 Northeast Cutoff, Box 15036

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

Share Link: