Adding Recharge Port for Battery

flux

Here are the components to add for the USB-C recharge port on your 3 000 mAh LiPo battery:

Table

Part NameManufacturer Part NumberQuantityFootprintDatasheetManufacturer
USB Type-C Receptacle8bc027b2-e946-4356-41d0-03b639c50af21Type-C___Generic
5.1 kΩ Resistor5.1k Resistor20402___Generic
Resettable PTC Fusea371dc06-60cd-46dc-8463-ae07043a079b12920 (7351 Metric)PDFYageo
USB VBUS TVS Diode04feb584-9797-448f-8c21-a326824678bc1USON-10PDFTexas Instruments
Li-Ion Charger IC34d0f3ca-9869-4772-9720-87ee2a8819831MSOP-10___Linear Technology
Shall I go ahead and add these to your schematic?

flux

  • Added 1x Type-C-2.0-6Pin as J6
  • Added 2x Generic Resistor as R9, R10
  • Added 1x SMD2920B100TF as F1
  • Added 1x TPD4E02B04DQAR as D1
  • Added 1x LTC1733EMSE#PBF as U4
S

solomonsystem

add the LSM6DS3 low-power accelerometer from manufacturers like Bosch Sensortec and then link this to a power switch to the cellular chip, only allow connection to cellular power draw if item is moved to activate the link this will also require a small processeoto manage the timer, that closes the cellular chip for 12 hours

flux

To implement a motion-activated power-gating circuit for your cellular module:
  1. Add the Bosch Sensortec LSM6DS3 accelerometer for motion detection.
  2. Add a low-power microcontroller to monitor the LSM6DS3’s interrupt output and run a 12 h timer.
  3. Add a P-channel MOSFET high-side switch to gate the cellular module’s power rail.
  4. Include pull-ups on the accelerometer interrupt pin, reverse-polarity protection on the power path, and a gate-drive resistor on the MOSFET (based on Flux knowledge-base guidance for gate-drive circuits).
Shall I add these components and wire:
  • INT1 of LSM6DS3 → MCU interrupt pin (with pull-up resistor)
  • MCU GPIO → MOSFET gate (through resistor)
  • MOSFET source to battery, drain to cellular power net
  • MCU power from 3.3 V rail, with decoupling cap
Let me know, and I’ll place and wire them.
Select MCU
Select MOSFET
Find pull-up resistor
Add power protection diode
Decide timer source
Sign up to send

Files

Schematic

Layout

3D View

TRK-IOT-GPS-AI