Everest CORE - Product Manual |
Application Guide
INGENIA | 08/01/2019
40
Bill of materials
Designator Part Number
Manufacturer
Package
Value / Description
D1
SK310A-LTP
Micro Commercial SMA / DO-214AC Diode Schottky, 3 A, 100 V
Q1
SSM3K324R,LF
Toshiba
SOT-23-3N
Logic-level N-Channel MOSFET, 30 V, 4 A
R1
RMCF0402FT100
R
Stackpole
0402
Thick film resistor, 100
Ω
, 1 % tolerance,
1/16 W
R2
RMCF0402FT10K
0
Stackpole
0402
Thick film resistor, 10 k
Ω
, 1 % tolerance,
1/16 W
7.2.4. Output Supplies
3.3 V and 5 V Output Supplies
To be able of supplying external circuitry, like feedback sensors or command sources, two load switches are
implemented as identical circuits. This would limit the current drawn from the outside, providing both short-circuit
and overload protection, and thus maintaining the internal logic supply lines safe. Additionally, TVS diodes are
added for ESD protection.
External current consumption
Both 5 V and 3.3 V internal logic supplies must be able of handling the self-consumption plus the
maximum current limit set here. Otherwise the internal logic supplies could drop before the load switch
overcurrent protection acts, which could cause failures of diverse nature. See Logic supply chapter above
for more information.
GND connection required
External circuitry supplied this way must have its reference or Ground voltage connected to GND_D
