channel 7

channel 6

channel 5

channel 4

InputLogic_GS .emf

IN2

IN3

I

IN

IN0

channel 3

&

OR

OUT3

BOL3

MAP3

gate

control

SLE3

MAP0

OUT0

BOL0

SLE0

channel 1

&

OR

MAP1

OUT1

BOL1

gate

control

SLE1

MAP0

OUT0

BOL0

SLE0

channel 2

&

OR

MAP2

OUT2

BOL2

gate

control

SLE2

MAP0

OUT0

BOL0

SLE0

channel 0

&

OR

MAP0

OUT0

BOL0

gate

control

SLE0

SPI Driver for Enhanced Relay Control

SPIDER - TLE7232GS

Block Description and Electrical Characteristics

Data Sheet

12

Rev. 1.0, 2007-12-18

5.1.2

Input Circuit

There are three input pins available at SPIDER - TLE7232GS to control the output stages.

Figure 4

Input Mapping and Boolean Operator

The input signal of IN3 can be configured to be used as control signal of the output stages for each channel

separately. The channels 0 to 2 differ from the channels 3 to 7 in the mapping behavior.

IN0 is a direct input to channel Out0, while IN2 is a direct input to Out2.

OUT0 can be switched with the SPI Flag MAP0 to the mappable input IN3, default is IN0.

OUT2 can be switched with the SPI Flag MAP2 to the mappable input IN3, default is IN2.

OUT3 is controlled by default with IN3, but IN3 can be programmed to each channel.

Therefore after power up the inputs are always mapped to their corresponding outputs.

Please refer to Figure 4 for details.

The current sink to ground at the input pins ensures that the channels switch off in case of open pin. The zener

diode protects the input circuit against ESD pulses.