TPS2121RUXR Power Mux Modul
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Power Mux module with the TPS2121RUXR.
Example of an application
Switches 2 x 5V 3.5A. Each input has a max. input voltage of 22V.
The inputs are set so that they are switched off at +5.52V. ( default Variante ) (Adjustable overvoltage supervisor)
Any other configuration up to 20V can be set using resistors.
The configuration on the board corresponds to the "Highest Voltage Operation" page 28 in the TI data sheet.
Ideal for switching two input voltages.
Configured modules, as shown in the table below, can now be ordered. You can select from input 1 to input 7.
The default variant will be adjusted accordingly. Please inquire about other input variants beforehand. Delivery time is up to one week.
Other input voltages and switch-off values are also available. Please inquire beforehand and specify the exact values,
such as input voltage and switch-off. Delivery time for these may be longer than one week.
Package contents:
1 x TPS2121RUXR Power Mux Module (assembled) ( 2x +5V Input, switch off 5.52V )- default
2 x 6-pin headers
Power-Switch-Board_V.02.pdf ( update 09.03.2026 )
tps2121.pdf
Example of an application
Switches 2 x 5V 3.5A. Each input has a max. input voltage of 22V.
The inputs are set so that they are switched off at +5.52V. ( default Variante ) (Adjustable overvoltage supervisor)
Any other configuration up to 20V can be set using resistors.
The configuration on the board corresponds to the "Highest Voltage Operation" page 28 in the TI data sheet.
Ideal for switching two input voltages.
Configured modules, as shown in the table below, can now be ordered. You can select from input 1 to input 7.
The default variant will be adjusted accordingly. Please inquire about other input variants beforehand. Delivery time is up to one week.
Other input voltages and switch-off values are also available. Please inquire beforehand and specify the exact values,
such as input voltage and switch-off. Delivery time for these may be longer than one week.
Package contents:
1 x TPS2121RUXR Power Mux Module (assembled) ( 2x +5V Input, switch off 5.52V )- default
2 x 6-pin headers
| Input +5V | SwitchOff 5.52V | Resistor 21,0k ( R1/R2 ) | R3/R4 = 4,99K | default | |
| Input +20V | SwitchOff 20.37V | Resistor 90,9k ( R1/R2 ) | R3/R4 = 4,99K | R1/R2 - Artikel: 002951 | input-1 |
| Input +3,3V | SwitchOff 3.5V | Resistor 11,5k ( R1/R2 ) | R3/R4 = 4,99K | R1/R2 - Artikel: 002950 | input-2 |
| Input +5V | SwitchOff 5.22V | Resistor 19,6k ( R1/R2 ) | R3/R4 = 4,99K | R1/R2 - Artikel: 002952 | input-3 |
| Input +5V | SwitchOff 5.41V | Resistor 20,5k ( R1/R2 ) | R3/R4 = 4,99K | R1/R2 - Artikel: 002225 | input-4 |
| Input +12V | SwitchOff 12.45V | Resistor 53,6k ( R1/R2 ) | R3/R4 = 4,99K | R1/R2 - Artikel: 002948 | input-5 |
| Input +12V | SwitchOff 12.17V | Resistor 52,3k ( R1/R2 ) | R3/R4 = 4,99K | R1/R2 - Artikel: 002949 | input-6 |
| Input +12V | SwitchOff 12.72V | Resistor 54,9k ( R1/R2 ) | R3/R4 = 4,99K | R1/R2 - Artikel: 002947 | input-7 |
Power-Switch-Board_V.02.pdf ( update 09.03.2026 ) tps2121.pdf
