Ambient pcb lifepo4protection
About the Ambient pcb lifepo4protection
Ambient pcb lifepo4protection is an open source PCB design by LEAT-EDGE, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 79.2 × 31.4 mm, with 25 components from 14 distinct parts.
Other key parts include the H2112-CB and TMP390. By type, the board carries 12 resistors, 4 transistors, 3 ICs, 3 capacitors, 1 connector and 1 battery holder.
From the project
Single-cell LiFePO4 protection circuit (overcharge, overdischarge, charge/discharge overcurrent, overtemperature, undertemperature)
Single-cell LiFePO4 protection circuit (overcharge, overdischarge, charge/discharge overcurrent, overtemperature, undertemperature) used in the Ambient project.
- LiFePO4 charge/discharge protector (HYCON HY2112-CB) - Overcharge protection (i.e., overvoltage from charging circuit): >= 3.75 V (0.15 V hysteresis) up to 12 V. - Overdischarge protection (i.e., cell undervoltage): = 2 A. - Discharge overcurrent (i.e., shorted or high-consumption load): >= 2 A. - Temperature cutoffs (Texas Instruments TMP390): - Charge overtemperature: >= 54 °C (5 °C hysteresis). - Discharge overtempeture: >= +60…
Main components on the Ambient pcb lifepo4protection
Ambient pcb lifepo4protection bill of materials (BOM)
25 components, 14 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | H2112-CB | SOT-23-6 | U1 |
| 2 | TMP390 | SOT-563 | U2, U3 |
| 4 | AO3400A | SOT-23 | Q1, Q2, Q3, Q4 |
| 1 | CONN_01X02 Conn_01x02 | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J1 |
| 1 | Battery_Cell | BatteryHolder_18650-Ambient | BT1 |
| 1 | C3032558 3A, 81°C | SolderWire-0.127sqmm_1x02_P3.7mm_D0.48mm_OD1mm | F1 |
| 3 | 100NF 100nF | C_0402_1005Metric | C1, C2, C3 |
| 3 | 2k | R_0402_1005Metric | R1, R8, R12 |
| 1 | 100 | R_0402_1005Metric | R2 |
| 4 | 0.1 | R_1206_3216Metric | R3, R4, R5, R6 |
| 1 | 9.09K 9.09k | R_0603_1608Metric | R9 |
| 1 | 38.3K 38.3k | R_0603_1608Metric | R10 |
| 1 | 5.90K 5.90k | R_0603_1608Metric | R13 |
| 1 | 21.5K 21.5k | R_0603_1608Metric | R14 |
Ambient pcb lifepo4protection design files
The KiCad project lives in the LEAT-EDGE/ambient-pcb-lifepo4protection repository on GitHub; these links point at the commit this page was built from.
Ambient pcb lifepo4protection: common questions
How big is the Ambient pcb lifepo4protection?
The Ambient pcb lifepo4protection measures 79.2 × 31.4 mm, has 2 copper layers and is 0.8 mm thick.
How many components are on the Ambient pcb lifepo4protection?
25 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Ambient pcb lifepo4protection design files?
From the LEAT-EDGE/ambient-pcb-lifepo4protection repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Ambient pcb lifepo4protection design in my own project?
Yes, under the terms of its CERN-OHL-P-2.0 license, which LEAT-EDGE chose for the repository.