Componentes Faltantes para Cargador

enri21

enri21

Añade un microcontrolador ATtiny85 (versión SMD, preferiblemente ATTINY85-20SU) al esquema. Por favor, realiza las siguientes conexiones: 1) Conecta su pin VCC a la red principal de alimentación 'SYS' que creamos con el MP2650. 2) Conecta su pin GND a la red general 'GND'. 3) Añade un condensador de desacoplo de 100nF entre el VCC y el GND del ATtiny85. 4) Prepara la interfaz de programación ICSP para producción: añade Test Points (puntos de prueba para pogo-pins) a los pines PB0 (MOSI), PB1 (MISO), PB2 (SCK) y PB5 (RESET) para que podamos inyectarle el código en el futuro
39 days

flux

0:40

Thinking deeply about your request.

Considering execution plans.

Crafting concise details.

Tu objetivo es añadir un ATtiny85 SMD con alimentación desde SYS, desacoplo local y test points de programación.
  • El plan ya está listo para:
    1. añadir y alimentar el MCU
    2. colocar el capacitor de 100 nF
    3. exponer PB0/PB1/PB2/PB5 como test points ICSP
    4. revisar el bloque final
Haz clic en Start en la barra del plan para ejecutarlo.
39 days

Started implementing a plan

#Goal

- Integrate an SMD ATtiny85 microcontroller (preferably ATTINY85-20SU) in the existing ModuloATtiny85 / Gay Teal P.K.E. Meter project. The new MCU will use the SYS rail (from the MP2650 charger) for power, have its ground connected to the main GND, utilize a 100 nF decoupling capacitor between VCC and GND, and provide production programming access via designated pins.

#Implementation plan

1. Add and configure the ATtiny85 MCU

1. Select and add the SMD ATTINY85-20SU to the schematic.

2. Connect the VCC pin of the ATtiny85 to the SYS power rail from the MP2650 charger section.

3. Connect the GND pin of the ATtiny85 to the main GND net.

2. Add power decoupling

1. Place a 100 nF decoupling capacitor between the VCC and GND pins of the ATtiny85.

3. Provide manufacturing programming access

1. Identify and expose production test points for the following pins:

1. PB0 (MOSI)

2. PB1 (MISO)

3. PB2 (SCK)

4. PB5 (RESET)

2. Label these testpoints appropriately for pogo-pin ICSP access.

4. Review the schematic changes

1. Verify all power connections and decoupling components are correctly connected.

2. Ensure test points are accessible and clearly marked for production programming.

#Success criteria

- Successfully integrated the ATtiny85 with proper SYS power and GND connections.

- Installed a 100 nF decoupling capacitor between VCC and GND of the MCU.

- Exposed and labeled PB0, PB1, PB2, and PB5 as production programming test points for pogo-pin ICSP access.

39 days

Task completed.

3:24

39 days

Task completed.

3:09

Accessing knowledge base.

Searching library for: "ATTINY85-20SU SMD 8-pin AVR microcontroller for a battery-powered board, preferred exact ATTINY85-20SU or closest active ATTiny85 SOIC/SOIJ package variant, suitable for adding to schematic with VCC, GND, PB0 PB1 PB2 PB5 pins exposed for ICSP programming."

Started: adding ATtiny85 with ICSP testpoints

Finished searching for components.

Finished searching for components.

Running design review.

Analyzing the schematic.

Running design review.

39 days

Updated 1 document property

0:06

Set System Architecture to "```mermaid flowchart TD USB[USB-C Input] --> CHG[MP2650 Charger Power Path] BAT[LiIon Battery] --> CHG CHG --> SY..."

39 days

flux

0:22

He seleccionado ATTINY85-20SU en SOIC-8 y pads SMD de test para pogo-pin. Voy a alimentarlo desde SYS y añadir el desacoplo local de 100 nF con acceso ICSP a MOSI, MISO, SCK y RESET.
39 days
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  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
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  • Net Portal
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    A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
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  • Generic Capacitor
    Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
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  • Terminal
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ModuloATtiny85

ModuloATtiny85 thumbnail
Gay Teal P.K.E. Meter with MP2650 USB-C battery charger section finalized, including 1.5uH power inductor and current-sense monitoring filter placeholders for later integration.

Properties

Diagram



  
    
  
  
    
  












USB-C Input
MP2650 Charger Power Path
LiIon Battery
SYS Rail
ATtiny85 MCU
ICSP Test Points

Pricing & Availability

Distributor

Qty 1

Arrow

$1.25–$1.38

Digi-Key

$4.89–$5.27

LCSC

$5.32–$6.22

Mouser

$7.58

TME

$2.63

Verical

$1.90–$3.52

Controls