UDN2547B datasheet(3/8 Pages) ALLEGRO

Part #	UDN2547B

Description	PROTECTED QUAD POWER DRIVERS

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Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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2547

PROTECTED

QUAD POWER DRIVERS

STATUS

INN

ENABLE

OUTN

FAULT

Normal Load

H

L

H

LH

H

XL

H

Over-Current or

Short to Supply

H

R

L

Thermal Fault

H

L

Open Load or

Short to Ground

L

H

L

ELECTRICAL CHARACTERISTICS at TA = +25°C (prefix ‘UDN’) or over operating

temperature range (prefix ‘UDK’ or ‘UDQ’), VCC = 4.75 V to 5.5 V

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Output Leakage Current*

IOUT

VOUT = 60 V, VIN = 0.8 V, VEN = 2.0 V

—

30

150

µA

VOUT = 60 V, VIN = 2.0 V, VEN = 0.8 V

—

30

150

µA

Output Sustaining Voltage

VOUT(SUS)

IOUT = 100 mA, VIN = 0.8 V, VCC = Open

40

—

V

Output Saturation Voltage

VOUT(SAT)

IOUT = 400 mA

—

300

mV

IOUT = 500 mA

—

400

mV

IOUT = 600 mA

—

550

mV

Over-Current Limit

IOUT

5 ms PulseTest, VOUT = 5.0 V

—

1. 3

1.7

A

Input Voltage

Logic 1

VIN(1) or VEN(1)

2.0

—

V

Logic 0

VlN(0) or VEN(0)

—

0.8

V

Input Current

Logic 1

VIN(1) or VEN(1) = 2.0 V

—

60

µA

Logic 0

VIN(0) or VEN(0) = 0.8 V

10

—

µA

Fault Output Leakage Current

IF

VF = 40 V

—

<1.0

2.0

µA

Fault Output Current

IF

VF = 40 V, Driver Outputs Open,

VIN = 0.8 V, VEN = 2.0 V

40

60

80

µA

Fault Output Saturation Voltage

VF(SAT)

IF = 30 µA

—

0.1

0.4

V

Total Supply Current

ICC

All Outputs ON

—

45

50

mA

All Outputs OFF

—

6.0

10

mA

Thermal Shutdown

TJ

—

165

—

°C

Thermal Hysteresis

∆T

J

—15

—

°C

Typical Data is for design information only.

*Measurement includes XOR input current

and other elements.

X = Don’t care.

R = Linear drive, current limited.

TRUTH TABLE

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