The TLV841EVM comes populated with TL841SADL01YBHR device variant which has an open-drain, active-low output topology for the RESET pin. The other device variants provide different output topolgies and can be used on this EVM. Note: if using a TLV841 device variant with push-pull output topology, the pull-up resistor must be disconnected by leaving jumper J1 open. The TLV841EVM provides an option to apply a separate pull-up voltage by leaving jumper J1 open and connecting the pull-up voltage to pin 2 [V_PU] of jumper J1. The TLV841EVM provides jumper J3 and test point TP2 that is connected directly to the RESET pin for monitoring and/or interfacing to other devices.

The reset signal will be asserted low when:

• The voltage on the SENSE pin falls below V_IT- for the TLV841S version. See Figure 4-2
• The MR pin is pulled low or when the voltage on the VDD pin falls below V_IT- for the TLV841M version
• The voltage on the VDD pin falls below V_IT- for the TLV841C version.
• For TLV841M and TLV841C device variant option, the propagation detect delay t_{P_HL} when VDD goes below V_IT-.

For TLV841M (MR pin > V_OH) and TLV841C, when the voltage on VDD or when TLV841S SENSE pin monitoring voltage rises above (V_IT+ + V_HYS), the output reset pin will de-assert and remain de-asserted until a reset condition occurs again. Please refer to TLV841 datasheet for more information on the RESET output and how it reacts to start up conditions and minimum values of VDD.