A2550KLPTR-T View Datasheet(PDF) - Allegro MicroSystems

Part Name

Description

MFG CO.

A2550KLPTR-T

Relay Driver with 5 V Regulator for Automotive Applications

Allegro MicroSystems 

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A2550

Relay Driver with 5 V Regulator

for Automotive Applications

ELECTRICAL CHARACTERISTICS, –40°C ≤ TJ ≤ 150°C, VBB within operating limits, unless otherwise noted

Characteristics

Symbol

Test Conditions

Min.

Supply

VBB Operating Voltage1

VBB Supply Current

Logic Inputs

VBB

7

IBBQ All OUTx Off; EN = 5 V, VBB = ENBAT = 14 V

–

IBB

All OUTx On; EN = 5 V, VBB = ENBAT= 14 V

–

IBBS Sleep mode, EN = ENBAT = 0

–

ENBAT Input Voltage2

HIGH input level

VENBAT LOW input level

3.5

0

EN, WDI, and INx Input Voltage

VIH

HIGH input level

3.5

VIL

LOW input level

0

ENBAT, EN, WDI, INx Input Voltage

Hysteresis

VIhys

200

ENBAT Input Current2,3

HIGH input level, VBB = VBB(max)

–

IENBAT HIGH input level, VBB = 14 V

–

LOW input level

–50

EN Input Current2

HIGH input level

IEN

LOW input level

–

–50

WDI Input Current2

IWDI

HIGH input level

LOW input level

–

–10

INx Input Current2

HIGH input level

IINx

LOW input level

–

–10

Drivers

Propagation Delays

tp(ON) INx change to unloaded output change

–

tp(OFF) INx change to unloaded output change

–

IOUTx = 250 mA, VBB = 14 V

–

Driver On-Resistance

RDS(on) IOUTx = 250 mA, VBB = 9 V

–

IOUTx = 250 mA, VBB = 7 V

–

Driver Leakage Current

IDSS

VOUTx = 40 V

–

Diode Forward Voltage

VF

IOUTx = –250 mA

–

Output Clamp Voltage

VCL

IOUTx = 100 μA

50

Low-Side Driver Overcurrent (O.C.)

Threshold

IOUT(OC)

275

Blanking Time Before Overcurrent Detect

tBLANK IOUT = 500 mA

2

Regulator

Voltage Regulator Output Voltage

Pass Transistor On-Resistance1

Line Regulation Voltage

Load Regulation Voltage

Current Limit Level4

Under Voltage Lockout Threshold

Under Voltage Lockout Hysteresis

VREG5

RREG5

VLNR

VLDR

IREG5Lim

VUVREG5

VUVREG5hys

CREG5 ≥ 0.47 μF (X7R Ceramic, ESR ≤ 0. 5Ω),

1 mA ≤ IREG5 ≤ 40 mA

IREG5 = 40 mA

IREG5 = 1 mA

1 mA ≤ IREG5 ≤ 40 mA, VBB = 7 V

1 mA ≤ IREG5 ≤ 40 mA, VBB ≥ 9 V

VREG5 = 4.63 V, VBB = 7 V

VREG5 = 4.63 V, VBB ≥ 9 V

VREG5 = 0 V

VREG5 falling

VREG5 rising

4.9

–

–

–

–

40

65

65

4.25

4.36

–

Typ.

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

1

0.5

–

–

–

–

–1.3

–

–

–

5.0

–

–

–

–

–

–

–

4.38

4.50

0.12

Max. Units

40

V

4

mA

5

mA

10

μA

VBB

V

1.5

V

5.5

V

1.5

V

–

mV

400 μA

70

μA

10

μA

50

μA

10

μA

50

μA

10

μA

50

μA

10

μA

2

μs

1

μs

5

Ω

5.5

Ω

6

Ω

10

μA

–1.4 V

60

V

500 mA

20

μs

5.1

V

55

Ω

20 mV

100 mV

40 mV

150 mA

200 mA

200 mA

4.63 V

4.75 V

–

V

Continued on the next page...

Allegro MicroSystems, Inc.

4

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

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