Microchip Technology RN4870 - Page 28

RN4870/71
DS50002489G-page 28  2016-2023 Microchip Technology Inc.
5.3 Power Drop Protection
To prevent any problems that may arise when the power
supply goes below 1.9V, a power supply drop protection
circuit is recommended. Essentially, this circuit consists
of a Reset IC, which acts as an Open-Drain with a Delay
≤ 10 ms, and is triggered at a 1.8V power supply.
Figure 5-6 shows a recommended power drop
protection circuit.
FIGURE 5-6: POWER DROP PROTECTION CIRCUIT
RN4870/71
VBAT
RST_N
Reset IC
OUT VDD
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