UMAX140610. LIN
– J1939 CAN Protocol Converter with PWM Output. Version 1
Page: 31-81
For example, with a 0.5 to 4.5V input (X-Axis) driving a 0 to 1500mA output (Y-Axis), the
default points wo
uld be setup as per figure (a) below. However, a 100Ω to 54kΩ input (X-Axis)
representing 120ºC to -30ºC (Y-Axis) would be setup as per figure (b) below. In each case, the
user would have to adjust the table for the desired response.
Figure 15. Lookup Table Initialization Examples
3.4.4 Point To Point Response
By default, the X and Y axes are setup for a linear response from point (0,0) to (10,10), where
the output will use linearization between each point, as shown in Figure 3. To get the
linearization, each “
Point N
– Response
”, where N = 1 to 10, is setup for a
‘Ramp To’
output
response.
Alternatively, the user could select a
‘Jump To’
response for “
Point N
– Response
”, where N =
1 to 10. In this case, any input value between X
N-1
to X
N
will result in an output from the Lookup
Table function block of Y
N
.
