A3907 데이터 시트보기 (PDF) - Allegro MicroSystems

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A3907

Low Voltage Voice Coil Motor Driver

Allegro MicroSystems 

A3907

Low Voltage Voice Coil Motor Driver

ELECTRICAL CHARACTERISTICS Valid at TA = 25°C, VDD = 2.3 to 5.5 V; unless otherwise noted

Characteristics

Symbol

Test Conditions

Min.

Supply Current

UVLO Enable Threshold

UVLO Hysteresis

Thermal Shutdown Temperature

Thermal Shutdown Hysteresis

Power-Up Delay

D-to-A Converter

–

IDD

Sleep Mode (SLEEPZ = low), VDD = 2.3 to 3.5 V

–

VUVLO(th) VDD rising

–

VUVLO(hys)

–

TJTSD Temperature increasing

–

TJTSD(hys) Recovery = TJTSD - TJTSD(hys)

–

tdPO

–

Resolution

Res Target = 100 μA/LSB

–

Relative Accuracy

Differential Nonlinearity

Maximum Output Current

Gain Error

Gain Error Drift1

Minimum Code Error

Offset Error

Output

errINL Code = 64 to 1023, Endpoint method

–

errDNL Guaranteed monotonic

–

IMAX Code = 1023

–

errA TJ = 25°C, Code 64 to 1023, VDD = 2.6 to 3.0 V

–10

ΔerrA TJ = –40°C to 125°C

–

IOS1

Code = 1

0

IOS

Code = 64

–

Slew Rate Timer

Output Voltage Range

Output On Resistance

I2C Interface

errTS

VOUT

RDS(on)

Relative to target value

RSENSE + RSINK, IOUT = 102.3 mA

–10

0.35

–

Bus Free Time Between Stop and Start

tBUF

1.3

Hold Time Start Condition

tHD:STA

0.6

Setup Time for Repeated Start

Condition

tSU:STA

0.6

SCL Low Time

tLOW

1.3

SCL High Time

tHIGH

0.6

Data Setup Time

tSU:DAT

100

Data Hold Time

tHD:DAT

0

Typ.

0.5

< 100

2

100

165

15

10

Max.

2

500

2.295

–

–

–

–

10

–

±4

–

–

±1

102.3

–

<3

10

0.2

–

1

5

0.5

–

–

10

–

VDD – 0.1

2

–

–

–

–

–

–

–

–

–

–

–

–

–

900

–

Unit

mA

nA

V

mV

°C

°C

μs

bit

LSB

LSB

mA

%FS

LSB/°C

mA

mA

%

V

Ω

μs

μs

μs

μs

μs

ns

ns

Allegro MicroSystems, LLC

3

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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