L294 datasheet(3/8 Pages) STMICROELECTRONICS

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Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Power Supply Voltage (pin 1)

Operative Condition

Quiescent Drain Current (pin 1)

VENABLE = H

≥ 0.6V; VENABLE = L

Vss

Logic Suply Voltage (pin 4)

4.5

Iss

Quiescent Logic Supply

Current

VDIAG = L

DIAG Output at High Impedance

100

µA

Input Voltage (pin 7)

Operating Output

0.6

Non-operative Output

0.45

Input Current (pin 7)

≥ 0.6V

-1

µA

≤ 0.45V

-3

VENABLE

Enable Input Voltage (pin 9)

Low Level

-0.3

0.8

High Level

2.4

IENABLE

Enable Input Current (pin 9)

VENABLE = L

-100

µA

VENABLE = H

100

Iload/ Vi

Trasconductance

RS = 0.2

Ω

Vi = 1V

0.95

1.05

A/V

Vi = 4V

0.97

1.3

Vsat H

Source Output Saturation

Voltage

Ip = 4A

1.7

Vsat L

Sink Output Saturation Voltage

Ip = 4A

Vsat H + VsatL Total Saturation Voltage

Ip = 4A

4.5

Ileakage

Output Leakage Current

Rs = 0.2

Ω; Vi ≤ 0.45 V

1mA

On Time Limiter Constant (°)

VENABLE = L

120

VDIAG

Diagnostic Output Voltage

(pin 5)

IDIAG = 10 mA

0.4

IDIAG

Diagnostic Leakage Current

(pin 5)

VDIAG = 40V

µA

Vpin 8

Vpin10

OP AMP and OTA CD Voltage

Gain (°°)

Vpin 10 = 100 to 800 mV

VSENS

Sensing Voltage (pin 10) (°°°)

0.9

ELECTRICAL CHARACTERISTICS (refer to the test circuit, Vs = 40 V, Vss = 5V, Tamb = 25

°C, unless

otherwise specified)

(°)

After a time interval tmax = KC2, the output stages are disabled.

(°°) See the block diagram.

(°°°) Allowed range of VSENS without intervention of the short circuit protection.

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L294

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