Pocket_PSU
PocketConcepts
A variable current & voltage PSU with 3S lipo charging, balancing, and protection circuit using PPS.
Components (39)
| Reference | Value | Description |
|---|---|---|
| Q1,Q2,Q4 | DMG2301L | -3A Id, -20V Vds, P-Channel MOSFET, SOT-23 |
| Q3 | MMBT3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, SOT-23 |
| U1 | BQ25792RQMR | |
| U2 | S-8254AAWFT-TB-G | |
| U3 | ATtiny402-SS | 20MHz, 4kB Flash, 256B SRAM, 128B EEPROM, SOIC-8 |
| U4 | NCP718xSN500 | 300-mA, Wide Input Voltage, Low-IQ LDO, 5.0V, SOT-23 |
| C1,C3,C6-C8,C12,C13,C15-C17,C20-C22 | 100n | Unpolarized capacitor |
| C2 | 4.7u | Unpolarized capacitor |
| C4,C5,C9,C14 | 10u | Unpolarized capacitor |