jsm/charger
An 80×50 mm 4S Li-ion charger PCB using a BQ24735 controller, protected 24 V input, MOSFET synchronous buck stage, 4.7 µH inductor, current sensing, filtering, XT30 battery output, and SMBus control interface to deliver up to 16.8 V at 5 A.
- Version
- 0.0.1
- License
- unset
- Stars
- 0
dist/index.d.ts
import * as react from 'react';
/**
* Smart Charger 4S - Rev 17 (corrected wiring, functional-block schematic)
*
* Target: 4S Li-ion Battery Charger Daughterboard (16.8V max output, 5A charge current)
* Main Controller: Texas Instruments BQ24735RGRR (VQFN-20) [LCSC: C353879]
*
* CHANGES FROM v16 (see chat summary for full rationale):
* - VCC now bootstraps from raw adapter input (J_PWR) through a damping/
* reverse-protection filter, not from the post-RBFET rail (which cannot
* power up until the FETs are already on).
* - ILIM now has a real divider from the 3.3V host rail (was grounded, which
* disabled charging).
* - Input capacitance moved off the switching (PHASE) node onto the actual
* VIN_SW rail; ACP/ACN sense filtering added at the correct nodes.
* - ACDET divider corrected to a safe ratio for a 24V input (was 12V, over
* the 7V absolute max).
* - PowerPAD now wired to GND with an explicit pin.
* - Dead battery-drain divider (R_BQ14/15/12 + C_BQ4) removed.
* - BQ24735 pin 11 corrected from NC to BATDRV.
* - REGN / BTST / IOUT decoupling values corrected to datasheet limits.
* - Schematic reorganized into six functional sections on an A3 sheet,
* small passive symbols, wiring kept as direct traces (no netlabels)
* except for the single shared GND net, which uses ground symbols to
* avoid dozens of criss-crossing ground wires.
*
* PARTS FLAGGED "(verify LCSC)" use a value not in the original BOM; confirm
* the exact LCSC part number before ordering.
*/
declare function SmartCharger4S(): any;
export { SmartCharger4S as default };