A6850KLTR-T(2011) 查看數據表（PDF） - Allegro MicroSystems

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A6850KLTR-T
(Rev.:2011)

Dual Channel Switch Interface IC

Allegro MicroSystems 

A6850

Dual Channel Switch Interface IC

ELECTRICAL CHARACTERISTICS at TJ = -40 to +150°C (unless noted otherwise)

Characteristics

Symbol

Test Conditions

Min. Typ. Max. Units

Supply Input Voltage Range

Supply Input Quiescent Current

Power-Up Time1

VIN

Operating mode, IOUTPUTx = 0 mA

IINQ

Sleep mode:

ENABLE1 and ENABLE2 low

VOUTPUT1 = VOUTPUT2 = 0 V

tON

4.75 –

26.5

V

–

–

5.0

mA

–

–

15

μA

–

–

20

μs

Output Rise Time2

trLH

IOUTPUTx = 0 to –10 mA,

10% to 90%VSENSEx

– 0.18 1.5

μs

Output Fall Time2

tfHL

IOUTPUTx = 0 to –10 mA,

90% to 10%VSENSEx

–

1.4

3.5

μs

Enable Delay Time2

tENdlyLH

IOUTPUTx = –5 mA,

50% ENABLEx to 50%VSENSEx

–

150 500

ns

Disable Delay Time2

OUTPUTx Source Resistance

OUTPUTx Leakage Current

SENSEx Output Current Offset3

SENSEx Voltage4

ENABLEx Input Voltage Range

ENABLEx Input Hysteresis

ENABLEx Current

tENdlyHL

IOUTPUTx = –5 mA,

50% ENABLEx to 50%VSENSEx

–

4.0

7.5

μs

RDS(on)

IOUTPUTx = –20 mA

–

–

35

Ω

IOUTPUTQ VOUTPUTx = 0 V; disabled

–

–

–20

μA

ISENSE(ofs)

ISENSEx = (IOUTPUTx / 10) + ISENSE(ofs),

IOUTPUT = –2 mA to –20 mA

–100

–

100

μA

ISENSEQ VSENSEx = 0 V; disabled

–

–

10

μA

VSENSEx

VIN > 7 V

VIN < 7 V

0

–

6

V

0

– VIN – 1

V

VENABLEH

2.0

–

–

V

VENABLEL

–

–

0.4

V

VENABLEhys At least one output enabled

125

–

375

mV

IENABLE

ENABLEx = 2.0 V

ENABLEx = 0.4 V

–

40

100

μA

–

8.0

20

μA

OUTPUT Current Limit

IOUTPUTM

–25.0 –35.0 –45.0 mA

OUTPUT Reverse Bias Current

IOUTPUT(rvrs)

Reverse bias blocking: VIN = 4.75 V,

VOUTPUT = 26.5 V

–

500 750

μA

Overvoltage Protection Threshold

VOVP

Rising VIN

27.0 –

33.0

V

Overvoltage Protection Hysteresis VOVPhys

–

2.0

–

V

Thermal Shutdown Threshold

TTSD

Temperature Increasing

–

175

–

°C

Thermal Shutdown Hysteresis

TTSDhys

–

15

–

°C

1Delay from end of Sleep mode to outputs enabled.

2 RSENSEx = 1.5 kΩ.

3For input and output current specifications, negative current is defined as coming out of (sourced from) the specified device pin.

4User to ensure that VSENSEx remains within the specified range. If VSENSEx exceeds the maximum value, the device is self-protected by an

internal clamp, but not all parameters perform as specified.

Allegro MicroSystems, Inc.

3

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

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