L294 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

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L294

SWITCH-MODE SOLENOID DRIVER

STMicroelectronics 

L294

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

otherwise specified)

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

Vs

Power Supply Voltage (pin 1)

Operative Condition

Id

Quiescent Drain Current (pin 1) VENABLE = H

Vi ≥ 0.6V; VENABLE = L

Vss

Logic Suply Voltage (pin 4)

Iss

Quiescent Logic Supply

Current

VDIAG = L

DIAG Output at High Impedance

Vi

Input Voltage (pin 7)

Operating Output

Non-operative Output

12

46

V

20 30

mA

70

4.5

7

V

5

8 mA

10 100 µA

0.6

V

0.45

Ii

Input Current (pin 7)

VENABLE Enable Input Voltage (pin 9)

Vi ≥ 0.6V

Vi ≤ 0.45V

Low Level

High Level

-1

µA

-3

-0.3

0.8

V

2.4

IENABLE Enable Input Current (pin 9)

Iload/ Vi Trasconductance

Vsat H

Source Output Saturation

Voltage

VENABLE = L

VENABLE = H

RS = 0.2 Ω

Ip = 4A

Vi = 1V

Vi = 4V

-100 µA

100

0.95 1 1.05

A/V

0.97 1

1.3

1.7

V

Vsat L Sink Output Saturation Voltage

Vsat H + VsatL Total Saturation Voltage

Ileakage Output Leakage Current

K

On Time Limiter Constant (°)

VDIAG

Diagnostic Output Voltage

(pin 5)

Ip = 4A

Ip = 4A

Rs = 0.2Ω; Vi ≤ 0.45 V

VENABLE = L

IDIAG = 10 mA

2

V

4.5 V

1

mA

120

0.4 V

IDIAG

Diagnostic Leakage Current

(pin 5)

VDIAG = 40V

10 µA

Vpin 8

Vpi n 10

VSENS

OP AMP and OTA CD Voltage

Gain (°°)

Sensing Voltage (pin 10) (°°°)

Vpin 10 = 100 to 800 mV

5

0.9 V

(°) 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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