CC3200MOD_15 Datasheet, PDF (24/66 Pages) Texas Instruments – CC3200MOD SimpleLink™ Wi-Fi® and Internet-of-Things Module Solution, a Single-Chip Wireless MCU

CC3200MOD
SWRS166 – DECEMBER 2014
www.ti.com
4.5 Brown-Out and Black-Out
The module enters a brown-out condition whenever the input voltage dips below V_BROWN (see Figure 4-1 and
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.
Figure 4-1. Brown-Out and Black-Out Levels (1 of 2)
Figure 4-2. Brown-Out and Black-Out Levels (2 of 2)
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.
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Specifications
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