User manual
7
Rev. 1.0
2019-09-24
OPTIREG™ Linear TLS715B0NAV50 Demoboard
Z8F66967599
Demoboard
2.2.1
Enable Function
The jumper on the pin header JP_EN1 can be used to connect the EN signal to a external source via the
corresponding banana jack, or to GND, or to VIN. An overview of the different options is given in
“Jumper JP_EN1 setting for enable function” on Page 7
Figure 3 Illustration
of
the
two possible jumper positions
2.2.2
Signal Adaption
For easy signal adaption e.g. connecting probes for an oscilloscope, connectors TP_VIN, TP_I , TP_EN,
TP_VOUT and TP_GND can be used.
Table 3
Jumper JP_EN1 setting for enable function
JP_EN1
Enable Function
open
EN is connected to the EN banana jack and can be driven by an external source
1)
Please consider placing C6 in this configuration to buffer EN when using long supply leads
1) When no signal is applied externally, the regulator will remain disabled due to the internal pull-down resistor on EN
Short pins 1,2
EN is connected to the supply voltage VIN; the regulator is enabled when it is supplied
Short pins 2,3
EN is shorted to GND and the regulator remains disabled
Table 4
Signals on connector
Connector
Accessible Signals
TP_VIN
- VIN (input voltage including reverse polarity protection diode)
TP_I
- Regulator pin input voltage
TP_EN
- EN (enable input signal)
TP_VOUT
- VOUT (output voltage)
TP_GND
- GND
