Difference between revisions of "Gps1"
From DIDEAS Wiki
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| − | + | =power management= | |
| − | =power | ||
*3 to 4.2 LiPo (1.3 Ahr | *3 to 4.2 LiPo (1.3 Ahr | ||
*will use 4.2V LDO to charge battery - ideally automotive safe | *will use 4.2V LDO to charge battery - ideally automotive safe | ||
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| − | == | + | ==dsPICsupply== |
| − | * 3.0V @ upto 100mA | + | |
| + | * 3.0V @ upto 100mA GPS | ||
*TPS63030 (buck - boost) | *TPS63030 (buck - boost) | ||
| + | |||
| + | == GPS== | ||
| + | *direct to LiPo | ||
| + | * LOCOSYS LS20031/33 - direct Lipo connections! (41/44 mA) | ||
Revision as of 04:17, 16 July 2009
Contents
power management
- 3 to 4.2 LiPo (1.3 Ahr
- will use 4.2V LDO to charge battery - ideally automotive safe
- Need upower LV cutoff.
Battery charger
- LT3650-8.2 [[1]]
LCD display
- 5V @ 1.5mA
- TPS61220 boost converter - very efficient at lite load
LCD back light
- 3.8 - 4.2V @ 240mA max
- LTC3454 - LED driver.
dsPICsupply
- 3.0V @ upto 100mA GPS
- TPS63030 (buck - boost)
GPS
- direct to LiPo
- LOCOSYS LS20031/33 - direct Lipo connections! (41/44 mA)
