1.1 KiB
1.1 KiB
| 1 | Designator | Quantity | Value | Package | Notes |
|---|---|---|---|---|---|
| 2 | J1 | 1 | USB Type-C USB2.0 | J_USB_C_USB4105 | VBUS/GND; A6+B6=D+; A7+B7=D-; CC1/CC2 each 5.1k to GND |
| 3 | J8 | 1 | Right-angle male pin header SMD 1x5 2.54mm | HDR1SE_M_1X5 | 1=VBUS; 2=D-; 3=D+; 4=GND; 5=Shield/GND |
| 4 | J2-J7 | 6 | Wire pad | PTH-1.8mm | IN-/IN+/BAT-/BAT+/VOUT-/VOUT+ |
| 5 | U1 | 1 | TC4056A | SOIC-8 | TP4056 compatible 1-cell linear charger |
| 6 | U2 | 1 | MT3608 / B628 | SOT-23-6 | Boost converter controller; board markings vary |
| 7 | L1 | 1 | 4.7uH | L-5x5mm | Shielded power inductor marked 4R7 |
| 8 | D1 | 1 | SS34 | SMB | Schottky rectifier |
| 9 | RV1 | 1 | 100k | TRIM-3x3 | Output voltage adjust; exact fitted value to verify |
| 10 | R1 | 1 | 1.2k 1% | 0805 | Charge program resistor marked 122 (~1A) |
| 11 | R2 | 1 | 0R | 0805 | TEMP disable link |
| 12 | R3-R4 | 2 | 1k | 0805 | LED current limiting; verify fitted code |
| 13 | R5 | 1 | 2.2k 1% | 0805 | Boost feedback lower resistor; verify fitted code |
| 14 | R6-R7 | 2 | 5.1k | 0805 | USB-C CC1/CC2 Rd pull-down resistors |
| 15 | C1-C3 | 3 | 10uF 16V | X7R-1206 | Input/BAT/boost decoupling |
| 16 | C4 | 1 | 10uF 35V | X7R-1206 | Boost output decoupling; verify fitted voltage rating |
| 17 | C5 | 1 | 100nF | X7R-0805 | High-frequency bypass |
| 18 | LED1 | 1 | Red | 0603 | Charging indicator |
| 19 | LED2 | 1 | Blue | 0603 | Charge complete indicator |