CC3220MOD_017 Datasheet, PDF (43/100 Pages) Texas Instruments – SimpleLink Wi-Fi CERTIFIED Wireless MCU Modules

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CC3220MOD, CC3220MODA
SWRS206B – MARCH 2017 – REVISED AUGUST 2017
5.13 Thermal Resistance Characteristics for MOB and MON Packages
NAME
DESCRIPTION
°C/W ^{(1) (2)}
AIR FLOW (m/s)⁽³⁾
RΘ_JC
RΘ_JB
RΘ_JA
Psi_JT
Psi_JB
Junction-to-case
Junction-to-board
Junction-to-free air
Junction-to-package top
Junction-to-board
11.4
0.00
8.0
0.00
18.7
0.00
5.3
0.00
7.7
0.00
(1) °C/W = degrees Celsius per watt.
(2) These values are based on a JEDEC-defined 2S2P system (with the exception of the Theta JC [RΘ_JC] value, which is based on a
JEDEC-defined 1S0P system) and will change based on environment as well as application. For more information, see these
EIA/JEDEC standards:
• JESD51-2, Integrated Circuits Thermal Test Method Environmental Conditions - Natural Convection (Still Air)
• JESD51-3, Low Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages
• JESD51-7, High Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages
• JESD51-9, Test Boards for Area Array Surface Mount Package Thermal Measurements
Power dissipation of 2 W and an ambient temperature of 70ºC is assumed.
(3) m/s = meters per second.
5.14 Timing and Switching Characteristics
5.14.1 Power-Up Sequencing
For proper start-up of the CC3220MODx and CC3220MODAx modules, perform the recommended power-
up sequencing as follows:
1. Tie V_BAT1 (pin 37) and V_BAT2 (pin 40) together on the board.
2. Hold the nRESET pin low while the supplies are ramping up.
Figure 5-6 shows the reset timing diagram for the first-time power-up and reset removal.
T1
T2
T3
T4
VBAT
nRESET
STATE
POWER
OFF
RESET
HW INIT
FW INIT
APP CODE
LOAD
APP CODE
EXECUTION
32-kHz
RTC CLK
Figure 5-6. First-Time Power-Up and Reset Removal Timing Diagram
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