2919 datasheet(3/8 Pages) ALLEGRO

Il numero della parte	2919

Spiegazioni elettronici	DUAL FULL-BRIDGE PWM MOTOR DRIVER

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Produttore elettronici	ALLEGRO [Allegro MicroSystems]

Homepage	http://www.allegromicro.com

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3 / 8 page

2919

DUAL FULL-BRIDGE

MOTOR DRIVER

ELECTRICAL CHARACTERISTICS at T

A = +25°C, TJ ≤ 150°C, VBB = 45 V, VCC = 4.75 V to 5.25 V,

V

REF = 5.0 V (unless otherwise noted).

(at trip point)

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Output Drivers (OUT

A or OUTB)

Motor Supply Range

V

BB

Operating

10

—

45

V

Output Leakage Current

I

CEX

V

OUT = VBB

—

< 1.0

50

µA

V

OUT = 0

—

<-1.0

-50

µA

Output Sustaining Voltage

V

CE(sus)

I

OUT = ± 750 mA, L = 3.0 mH

45 + V

F

——

V

Output Saturation Voltage

V

CE(SAT)

Sink Driver, I

OUT = +500 mA

—

0.4

0.6

V

Sink Driver, I

OUT = +750 mA

—

1.0

1.2

V

Source Driver, I

OUT = -500 mA

—

1.0

1.2

V

Source Driver, I

OUT = -750 mA

—

1.3

1.5

V

Clamp Diode Leakage Current

I

R

V

R = 45 V

—

< 1.0

50

µA

Clamp Diode Forward Voltage

V

F

I

F = 750 mA

—

1.6

2.0

V

Driver Supply Current

I

BB(ON)

Both Bridges ON, No Load

—

20

25

mA

I

BB(OFF)

Both Bridges OFF

—

5.0

10

mA

Control Logic

Input Voltage

V

IN(1)

All inputs

2.4

—

V

IN(0)

All inputs

—

0.8

V

Input Current

I

IN(1)

V

IN = 2.4 V

—

<1.0

20

µA

V

IN = 0.8 V

—

- 3.0

-200

µA

Reference Voltage Range

V

REF

1.0

—

7.5

V

Current Limit Threshold

V

REF /VSENSE

I

0 = I1 = 0.8 V, VREF = 1.0 V to 7.5 V

9.5

10

10.5

—

I

0 = 2.4 V, I1 = 0.8 V,

13.5

15

16.5

—

V

REF = 1.5 V to 7.5 V

I

0 = 0.8 V, I1 = 2.4 V,

20.7

24.4

28.0

—

V

REF = 1.5 V to 7.5 V

Thermal Shutdown Temperature

T

J

—

170

—

°C

Total Logic Supply Current

I

CC(ON)

I

0 = I1 = 0.8 V, No Load

—

40

50

mA

I

CC(OFF)

I

0 = I1 = 2.4 V, No Load

—

10

12

mA

Total Reference Current

I

REF1 + IREF2

V

REF1 = VREF2 = 7.5 V, I0 = I1 = 2.4 V

140

185

250

µA

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