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23 Requirements

Changes: Removed future board(s) allotment

Absolute Maximum Draw

Module3.3V Rail Max Required Current (mA)5V Rail Max Required Current (mA)7.2V Battery Max Required Current (mA)
Backplane080 (LEDs)15
Power27701532 (from calculation below)
Autopilot07600
Radio60500
Sensor + PROMPT815450
Total1697885

1547

Max Power Board Battery Draw Calculation

Assume 90% step down efficiency

Power = (1697mA * 3.3V + 885mA * 5V) * 1.1 =  11,028mW

Current = 11,028mW / 7.2V =  1,532mA

Expected Draw

Module3.3V Rail Max Required Current (mA)5V Rail Max Required Current (mA)7.2V Battery Max Required Current (mA)
Backplane005515
Power1070394 (from calculation below)
Autopilot0740
Radio25900
Sensor + PROMPT2652501584
Total63199409

Expected Power Board Battery Draw Calculation

Assume 90% step down efficiency

Power = (631mA * 3.3V + 99mA * 5V) * 1.1 =  2,835mW

Current = 2,835mW / 7.2V =  394mA

2/18/23 Requirements

Changes: Updated values from other modules & added expected draw

Absolute Maximum Draw

Module3.3V Rail Max Required Current (mA)5V Rail Max Required Current (mA)7.2V Battery Max Required Current (mA)
Backplane080 (LEDs)15
Power27702166 (from calculation below)
Autopilot
11
0
500
760
1000
0
Radio
565
60500
Sensor + PROMPT
400
815
100
450
Future Board(s) Allotment5005000
Total
147611002639
21971385

2181

Max Power Board Battery Draw Calculation

Assume 90% step down efficiency

Power = (2197mA * 3.3V + 1385mA * 5V) * 1.1 =  15,593mW

Current = 15,593mW / 7.2V =  2166mA

Expected Draw

Module3.3V Rail Max Required Current (mA)5V Rail Max Required Current (mA)7.2V Battery Max Required Current (mA)
Backplane00
55
15
Power
0
1070
1584
394 (from calculation below)
Autopilot
11
0
500
74
1000
0
Radio
565
25900
Sensor + PROMPT
400
265
100
250
Future Board(s) Allotment
500
0
500
00
Total
1476
631
1100
99
2639
409

Expected Power Board Battery Draw Calculation

Assume 90% step down efficiency

Power = (1476mA 631mA * 3.3V + 1100mA 99mA * 5V) * 1.1 =  112,408mW835mW

Current = 112,408mW 835mW / 7.2V =  1,584mA394mA

11/4/22 Requirements

Changes: Updated power requirements from other modules

Absolute Maximum

Module3.3V Rail Max Required Current (mA)5V Rail Max Required Current (mA)7.2V Battery Max Required Current (mA)
Backplane0055
Power001584 (from calculation below)
Autopilot115001000
Radio56500
Sensor4001000
Future Board(s) Allotment5005000
Total147611002639


Power Board Battery Draw Calculation

Assume 90% step down efficiency

...

Module3.3V Rail Max Required Current (mA)5V Rail Max Required Current (mA)7.2V Battery Max Required Current (mA)
Backplane0060
Power00945 (from calculation below)
Autopilot05001000
Radio56500
Sensor4001000
Total9656002005


Power Board Battery Draw Calculation

Assume 90% step down efficiency

...

Module3.3V Rail Max Required Current (mA)5V Rail Max Required Current (mA)7.2V Battery Max Required Current (mA)
Backplane0060
Power002212 (from calculation below)
Autopilot05001000
Radio56500
Sensor4001000
Future Board(s) Allotment100010001000
Total196516004272


Power Board Battery Draw Calculation

Assume 90% step down efficiency

...