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UDN2943Z

HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER

Allegro MicroSystems 

2943

HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER

ELECTRICAL CHARACTERISTICS at TA = +25°C, VS = +24 V (unless otherwise noted).

Characteristic

Source Driver Sink Driver Output

Limits

Symbol Input, Pin 2 Input, Pin 5 Pin 4 Other Min. Typ. Max. Units

Output Leakage Current

(VS = +35 V)

Output Sustaining Voltage

ICEX

VCE(sus)

2.4 V

2.4 V

2.4 V

0.8 to 2.4 V

2.4 V

0V

—

—

2.4 V

35 V —

—

0.8 to 2.4 V 1.0 A Fig. 1A 24

2.4 V

-1.0 A Fig. 1B 24

Output Saturation Voltage

VCE(SAT)

0.8 V

2.4 V

2.4 V

-1.0 A —

—

0.8 V

1.0 A —

—

Short-Circuit Source Current

Logic Input Voltage

Input Current

Clamp Diode Forward Voltage

Logic Supply Current

ISC

VIN(1)

VIN(0)

IIN(1)

IIN(0)

VF

IS

0.8 V

—

—

2.4 V

0.8 V

NC

2.4 V

2.4 V

2.4 V

—

—

2.4 V

0.8 V

NC

2.4 V

0.8 V

0V

—

1.0

—

—

2.0

—

—

—

NC

—

—

NC

—

—

1.0 A Fig. 2 —

NC

—

—

NC

—

—

0.8 V

2.4 V

NC

—

—

Thermal Shutdown Temperature

TJ

Over-Voltage Shutdown

VS

Propagation Delay

tPD

—

—

—

—

—

—

—

—

—

24

2.4 V

2.4 V to 0.8 V 0.4 A Fig. 3 —

0.8 to 2.4 V

2.4 V

-0.4 A Fig. 4 —

2.4 V

0.8 to 2.4 V 0.4 A Fig. 3 —

2.4 to 0.8 V

2.4 V

-0.4 A Fig. 4 —

Notes: Negative current is defined as coming out of (sourcing) the specified device pin.

Typical Data is for design information only.

-10 -100 µA

10

100

µA

—

—

V

—

—

V

1.2

1.8

V

0.6

1.0

V

—

1.8

A

—

—

V

—

0.8

V

10

100

µA

-50 -200 µA

1.5

2.0

V

15

30

mA

55

75

mA

30

40

mA

160

—

°C

—

35

V

0.6

—

µs

1.0

—

µs

1.1

—

µs

0.6

—

µs

SOURCE INPUT

VOLTAGE

SINK INPUT

VOLTAGE

+

OUTPUT 0

CURRENT

–

SINKING CURRENT

OPEN CIRCUIT

SOURCING CURRENT

Dwg. WDwPg.-W0P2-4024

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