2944 datasheet(3/8 Pages) ALLEGRO

3 / 8 page

2944

QUAD HIGH-CURRENT,

HIGH-VOLTAGE

SOURCE DRIVER

www.allegromicro.com

ELECTRICAL CHARACTERISTICS at T

= +25

°C, T

J ≤

+150

°C, V

= 60 V, V

ENABLE

= 0 V

(unless otherwise noted).

Limits

Characteristic

Symbol

Test Conditions

Min.

Max.

Units

Supply Voltage Range

Output Leakage Current

ICEX

VOUT = 0 V, VENABLE = 2.4 V

—

µA

Output Sustaining Voltage

VCE(sus)

IOUT = -4 A, L = 3 mH

—

Output Saturation Voltage

VCE(SAT)

IOUT = -1 A, VIN = 2.4 V

—

1.8

IOUT = -4 A, VIN = 2.4 V

—

2.5

Input Voltage

Logic 1

VIN(1) or VENABLE(1)

2.0

—

Logic 0

VIN(0) or VENABLE(0)

—

0.8

Input Current

Logic 1

VIN(1) or VENABLE(1) = 2.4 V

—

220

µA

VIN(1) or VENABLE(1) = 12 V

—

1.5

Logic 0

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

—

µA

Total Supply Current

All drivers on, All outputs open

—

Clamp Diode Leakage Current

VR = 60 V

—

µA

Clamp Diode Forward Voltage

IF = 4 A

—

2.2

Turn-On Delay

tON

0.5 Ein to 0.5 Eout, RL = 15

Ω

—

2.0

µs

Turn-Off Delay

tOFF

0.5 Ein to 0.5 Eout, RL = 15

Ω

—10

µs

NOTE: Negative current is defined as coming out of (sourcing) the device being tested.

TYPICAL APPLICATION

QUAD RELAY DRIVE

(Using 2 Voltage Sources

and Optional PWM Current Limiting)

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