Datasheet Rev. 1.3

4

2008-01-09

Circuit Description

Logic Supply

The logic is supplied with 4.5 up to 60 Volt by the V

the logic is shut down and the output stages are switched off.

Direct Inputs

ENA

The ENA/FREEZE input can be used to enable and/or to freeze the output control of the

IC or to cut off the complete IC.

By pulling the ENA input to low, i.e. applying a Voltage V

The power stages are switched off and the current consumption is reduced to I

By applying a Voltage V

in their former state. All input signals will be ignored.

By pulling the input to high, the IC is in Enable mode. All input signals are output.

The ENA - pin has an internal pull-down.

IN1 / IN2

Each output is independently controlled via the respective input pin. The input pins are

high active. If the common enable pin is high, the individual input signals are output. The

input pins have an internal pull-down.

Table 1

Functional Table

V

ENA

Mode

IN1

IN2

IN1(-1) IN2(-1) OUT1 OUT2 Comment

≤0.8V

Disable X

1)

1)

X = not relevant

X

1)

X

1)

X

1)

L

L

all outputs OFF

1.2 .. 1.7V Freeze

X

1)

X

1)

L

L

L

L

former output state

1.2 .. 1.7V Freeze

X

1)

X

1)

L

H

L

H

former output state

1.2 .. 1.7V Freeze

X

1)

X

1)

H

L

H

L

former output state

1.2 .. 1.7V Freeze

X

1)

X

1)

H

H

H

H

former output state

≥2.0V

Enable

L

L

X

1)

X

1)

L

L

input is output

≥2.0V

Enable

L

H

X

1)

X

1)

L

H

input is output

≥2.0V

Enable

H

L

X

1)

X

1)

H

L

input is output

≥2.0V

Enable

H

H

X

1)

X

1)

H

H

input is output