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STD 12V low cut-off controller
License: Public Domain
Mode: Editors' pick
- 0
Update time：
2021-11-06 01:44:12
Creation time：
2021-09-28 10:17:48
Description
A simple Mosfet driven cut-off switch to protect a vehicle's start battery. High and low limits are software driven by the "always on" arduino.
Design Drawing
schematic diagram
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PCB
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PCB_12V low cut-off controller - main Board
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| ID | Name | Designator | Footprint | Quantity | BOM_Supplier | BOM_Supplier Part | BOM_Manufacturer | BOM_Manufacturer Part |
|---|---|---|---|---|---|---|---|---|
| 1 | 22pF | C1,C2 | CAP-TH_L5.5-W5.0-P5.00-D1.2 | 2 | LCSC | C342406 | TDK | CC45SL3AD220JYPNA |
| 2 | 100nF | C3 | CAP-TH_L5.0-W2.5-P5.08-D0.7 | 1 | LCSC | C254066 | Dersonic | CC1H103ZC4PD3F4D30MF |
| 3 | 4.7uF | C5,C9 | CAP-TH_BD4.0-P1.50-D0.8-FD | 2 | LCSC | C47879 | ValuePro | 4.7uF 50V 4*5 |
| 4 | 1uF | C6,C7 | CAP-TH_L4.2-W3.8-P5.08-D0.6 | 2 | LCSC | C409815 | STE(Songtian Elec) | 05Y105M500BF3C1H0R |
| 5 | 4.7uF | C8 | CAP-TH_BD5.0-P2.00-D0.8-FD | 1 | LCSC | C269935 | Ymin | PKCB41H4R7MF |
| 6 | 470nF | C10 | CAP-TH_L7.6-W3.8-P5.08-D0.51 | 1 | LCSC | C444744 | AVX | SR305C474KAR |
| 7 | 100nF | C11 | CAP-TH_L5.0-W4.0-P5.00-D1.0 | 1 | LCSC | C400087 | 火炬 | CT4G-0805-2X1-63V-0.1μF-K |
| 8 | 330nF | C12 | CAP-TH_L5.9-W4.1-P5.08-D0.5 | 1 | LCSC | C454409 | 火炬 | CT4G-1206-2X1-50V-0.33μF-K |
| 9 | S4B-XH-A (LF)(SN) | CN1,CN2 | CONN-TH_S4B-XH-A-LF-SN | 2 | LCSC | C157925 | JST Sales America | - |
| 10 | UART | H1 | HDR-TH_5P-P2.54-V-F | 1 | LCSC | C50950 | BOOMELE | 2.54mm 1*5p Female header |
| 11 | 1.27MM/1*2P | H2 | HDR-TH_2P-P1.27-V-M | 1 | LCSC | C703015 | BOOMELE(Boom Precision Elec) | 1.27mm/1*2P |
| 12 | ICSP | J2 | HDR-TH_6P-P2.54-V-R2-C3-S2.54 | 1 | LCSC | C65114 | BOOMELE | Header-Male-2.54_2x3 |
| 13 | Power | LEDG1 | LED-TH_BD3.0-P2.54-FD | 1 | LCSC | C99763 | EVERLIGHT | 204-10SUGC/S400-A5-L |
| 14 | L | LEDY1 | LED-TH_BD3.0-P2.54-FD | 1 | LCSC | C99759 | EVERLIGHT | 204-10UYOC/S530-A3-L |
| 15 | IRFZ48NP | Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8,Q9,Q10,Q11,Q12 | TO-220AB-3_L10.4-W4.6-P2.54-L | 12 | LCSC | C878808 | VBsemi Elec | IRFZ48NP |
| 16 | 10K | R1,R7,R9,R11,R13,R15,R16,R18,R20,R22,R24,R27 | RES-TH_BD2.5-L6.5-P10.50-D0.6 | 12 | LCSC | C57436 | UniOhm | MFR0W4F1002A50 |
| 17 | 220 | R2,R6,R8,R10,R12,R14,R19,R21,R23,R25,R26 | RES-TH_BD2.2-L6.5-P10.50-D0.6 | 11 | LCSC | C57439 | UniOhm | MFR0W4F2200A50 |
| 18 | 1K | R3,R5,R33,R34 | RES-TH_BD2.3-L6.5-P10.50-D0.5 | 4 | LCSC | C119324 | Chian Chia Elec | - |
| 19 | 10K | R4,R35 | RES-TH_BD2.3-L6.5-P10.50-D0.5 | 2 | LCSC | C119347 | Chian Chia Elec | - |
| 20 | 220 | R17 | RES-TH_BD4.5-L11.5-P15.50-D0.7 | 1 | LCSC | C61340 | UniOhm | MOR02SJ0221A10 |
| 21 | 1M | R28,R31 | RES-TH_BD2.5-L6.5-P10.50-D0.6 | 2 | LCSC | C58596 | UniOhm | MFR0W4F1004A50 |
| 22 | 390K | R29,R30 | RES-TH_BD2.2-L6.5-P10.50-D0.6 | 2 | LCSC | C58647 | UniOhm | MFR0W4F3903A50 |
| 23 | IC seat | SK1 | DIP-28_L36.0-W10.2-P2.54-LS10.2-BL | 1 | LCSC | C16653 | Boom Precision Elec | - |
| 24 | ATMEGA328P-PU | U1 | DIP-28_L34.6-W7.3-P2.54-LS10.2-BL | 1 | LCSC | C33901 | MICROCHIP | ATMEGA328P-PU |
| 25 | 4.096V Reference | U2 | SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR | 1 | LCSC | C19415 | TI | REF3040AIDBZR |
| 26 | LM7805L-TA3-T | U3 | TO-220-3_L10.0-W4.5-P2.54-L | 1 | LCSC | C71106 | UTC | LM7805L-TA3-T |
| 27 | Digital A | U4 | HDR-TH_8P-P2.54-V | 1 | LCSC | C358689 | MINTRON | MTP125-1108S1 |
| 28 | PWR | U5 | HDR-TH_8P-P2.54-V | 1 | LCSC | C358689 | MINTRON | MTP125-1108S1 |
| 29 | Digital B | U6 | HDR-TH_10P-P2.54-V | 1 | LCSC | C358690 | MINTRON | MTP125-1110S1 |
| 30 | Analog | U7 | HDR-TH_6P-P2.54-V | 1 | LCSC | C358688 | MINTRON | MTP125-1106S1 |
| 31 | 15*10.5*21 | U8,U9,U10,U11,U12,U13,U14,U15,U16,U17,U18,U19,U20 | SINK-TH_L15.0-W10.5-H21.0 | 13 | LCSC | C4649 | Made in China | - |
| 32 | 16MHz | X1 | OSC-TH_L10.0-W4.5-P5.00 | 1 | LCSC | C16212 | YXC | X49SD16MSD2SC |
| 33 | WJ126V-5.0-2P | P1 | CONN-TH_WJ126V-5.0-2P | 1 | LCSC | C8404 | ReliaPro | WJ126V-5.0-2P |
| 34 | K6-6136D-L1-04 | U21 | SW-TH_K6-6136D-L1-04 | 1 | LCSC | C128976 | Rectangular Connectors - Contacts | K6-6136D-L1-04 |
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