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LTC4055
USB Power Controller and Li-Ion Charger (4.2V Float Voltage)
Schematic Symbol
Pin Configuration (17 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | IN | passive |
| 2 | BAT | passive |
| 3 | OUT | passive |
| 4 | IN | power_in |
| 5 | WALL | input |
| 6 | SHDN | input |
| 7 | SUSP | input |
| 8 | HPWR | input |
| 9 | CLPROG | passive |
| 10 | GND | power_in |
| 11 | PROG | passive |
| 12 | TIMER | passive |
| 13 | ~{ACPR} | open_collector |
| 14 | ~{CHRG} | open_collector |
| 15 | VNTC | output |
| 16 | NTC | input |
| 17 | GND | passive |
Footprint
ConfirmedPackage_DFN_QFN/QFN-16-1EP_4x4mm_P0.65mm_EP2.15x2.15mm
Pad Layout
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Pads (21)
| Number | Type |
|---|---|
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| 1 | smd |
| 2 | smd |
| 3 | smd |
| 4 | smd |
| 5 | smd |
| 6 | smd |
| 7 | smd |
| 8 | smd |
| 9 | smd |
| 10 | smd |
| 11 | smd |
| 12 | smd |
| 13 | smd |
| 14 | smd |
| 15 | smd |
| 16 | smd |
| 17 | smd |