6.4.3 Known Startup Condition

The TLV3603-EP has a Power-on-Reset (POR) circuit which provides system designers a known start-up

condition for the output of the comparators. When the power supply (VCC) is ramping up or ramping down, the

POR circuit is active when VCC is below VPOR. When active, the POR circuit holds the output low at VEE. When

VCC is greater than or equal to VPOR as stated in Electrical Characteristics, the comparator output reflects the

state of the input pins.

Figure 6-1 shows how the TLV3603-EP output responds for VCC rising. The input is configured with a logic high

input to highlight the transition from the POR circuit control (logic low output) to a standard comparator operation

where the output reflects the input condition. Note how the output goes high when VCC reaches 2.1V.

Figure 6-1. Output for VCC Rising

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TLV3603-EP

SNOSDK3 – SEPTEMBER 2024

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