Brown-Out And Black-Out - Texas Instruments SimpleLink CC3200MOD Manual

CC3200MOD
SWRS166 – DECEMBER 2014
4.5

Brown-Out and Black-Out

The module enters a brown-out condition whenever the input voltage dips below V
Figure 4-2). This condition must be considered during design of the power supply routing, especially if operating
from a battery. High-current operations (such as a TX packet) cause a dip in the supply voltage, potentially
triggering a brown-out. The resistance includes the internal resistance of the battery, contact resistance of the
battery holder (4 contacts for a 2 x AA battery) and the wiring and PCB routing resistance.
In the brown-out condition, all sections of the CC3200MOD shut down within the module except for the Hibernate
block (including the 32-kHz RTC clock), which remains on. The current in this state can reach approximately 400
µA.
The black-out condition is equivalent to a hardware reset event in which all states within the module are lost.
24 Specifications
Figure 4-1. Brown-Out and Black-Out Levels (1 of 2)
Figure 4-2. Brown-Out and Black-Out Levels (2 of 2)
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(see Figure 4-1
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