LiPo heater
About the LiPo heater PCB
LiPo heater is an open source AVR/Arduino PCB design by PatrickBaus, published on GitHub. It is a 2-layer board measuring 32 × 32 mm, with 49 components from 33 distinct parts.
Its main chip is the ATtiny13-20SSU, from the AVR/Arduino family. Other key parts include the MCP73831, LTC2955-1(DFN) and LTC3536. By type, the board carries 19 resistors, 12 capacitors, 5 connectors, 4 ICs, 3 transistors and 3 diodes.
It belongs with the power & battery designs in this gallery.
From the project
A lithium polymer battery powered programmable heater
Main components on the LiPo heater
LiPo heater bill of materials (BOM)
49 components, 33 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCP73831 | SOT-23-5 | U1 |
| 1 | LTC2955-1(DFN) | DFN-10-1EP_2x3mm_P0.5mm_EP0.64x2.4mm | U2 |
| 1 | LTC3536 | DFN-10-1EP_3x3mm_P0.5mm_EP1.55x2.48mm | U3 |
| 1 | ATtiny13-20SSU | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | DMP1045U | SOT-23 | Q1 |
| 1 | NTLJF3117P | DFN-6-2EP_2x2mm_Pitch0.65mm | Q2 |
| 1 | MMBT3904 | SOT-23 | Q3 |
| 1 | USB_MICRO | USB_MICRO | J1 |
| 3 | Conn_01x02 | JST_PH_B2B-PH-K_02x2.00mm_Straight | J2, J3, J6 |
| 1 | AVR-ISP-6 | PinHeader_2x03_P2.54mm_Vertical | J7 |
| 1 | SW_Push | SW_Tactile_SPST_Angled_PTS645Vx31-2LFS | SW1 |
| 1 | SW_SPDT | SW_CuK_OS102011MA1QN1_SPDT_Angled | SW2 |
| 1 | Red LED | LED_0805_2012Metric | D1 |
| 1 | Green LED | LED_0805_2012Metric | D2 |
| 1 | LED | LED_0805_2012Metric | D3 |
| 1 | 22u | Coilcraft_MSS7341 | L1 |
| 2 | 10u | C_0805_2012Metric | C1, C2 |
| 1 | 10n | C_0603_1608Metric | C3 |
| 3 | 47u | C_0805_2012Metric | C4, C8, C9 |
| 4 | 100n | C_0603_1608Metric | C5, C10, C11, C12 |
Show 13 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 200p | C_0603_1608Metric | C6 |
| 1 | 18p | C_0603_1608Metric | C7 |
| 2 | 10k | R_0603_1608Metric | R1, R16 |
| 2 | 470 | R_0603_1608Metric | R2, R15 |
| 4 | 1k | R_0603_1608Metric | R3, R6, R13, R19 |
| 1 | 2k | R_0603_1608Metric | R4 |
| 2 | 100k | R_0603_1608Metric | R5, R7 |
| 1 | 332k | R_0603_1608Metric | R8 |
| 1 | 33k | R_0603_1608Metric | R9 |
| 1 | 150k | R_0603_1608Metric | R10 |
| 1 | 22.6k | R_0603_1608Metric | R11 |
| 1 | 1.1M | R_0603_1608Metric | R12 |
| 3 | 4.7k | R_0603_1608Metric | R14, R17, R18 |
LiPo heater design files
The KiCad project lives in the PatrickBaus/LiPo_heater repository on GitHub; these links point at the commit this page was built from.
- Layoutmain.kicad_pcb
- BOMBOM.csv
LiPo heater: common questions
What microcontroller does the LiPo heater use?
The LiPo heater is built around the ATtiny13-20SSU, from the AVR/Arduino family.
How big is the LiPo heater PCB?
The LiPo heater measures 32 × 32 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the LiPo heater?
49 components, from 33 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 LiPo heater design files?
From the PatrickBaus/LiPo_heater repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the LiPo heater design in my own project?
The repository has no license, so all rights stay with PatrickBaus. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the LiPo heater without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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