SLM6600

@@ -0,0 +1,48 @@+# SLM6600++**SOLA IC** · Battery Management · SOP-8-EP++SLM6600 from SOLA IC, in a SOP-8-EP. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VCC | power_in | Positive input supply voltage (4V to 6V, typ. 5V). Provides power to the internal circuit. When VCC drops within 30mV of BAT pin voltage, the SLM6600(S) enters low-power mode dropping IBAT to less than 2µA. Under-voltage lockout threshold is ~4V. |+| 2 | PROG | input | Charge current program pin. The charge current is programmed by connecting a 1% resistor RPROG (RPI) between PROG and GND. Example: 225Ω → 3A, 186Ω → 3.5A, 968Ω → 1A. |+| 3 | NSTDBY | output | Open-drain charge-terminated (standby) status output. Pulled low by an internal switch when battery charge is terminated (battery full). Otherwise high impedance. Typically drives a green LED. VOL ≤ 0.6V at 5mA. |+| 4 | NCHRG | output | Open-drain charge status output. Pulled low by an internal switch while the battery is charging. Otherwise high impedance. Typically drives a red LED. VOL ≤ 0.6V at 5mA. |+| 5 | TS | input | Chip enable and battery temperature sense input. Connect to the NTC sensor divider in the Li-Ion pack. If VTS < 45% VCC (VTS-L) or > 80% VCC (VTS-H), charging is suspended (battery too hot/cold). Tie to VCC to disable temperature sensing. Ground TS to disable the chip and terminate charging. |+| 6 | BAT | power_out | Battery connection pin. Connect the positive terminal of the Li-Ion battery here. Provides regulated 4.2V float voltage (±1%) and charge current up to 3A (3.5A max). Draws <2µA in disable/sleep mode. |+| 7 | GND | power_in | Ground reference for the device. Connect to system ground; also connect the exposed thermal pad to this ground plane for heat dissipation. |+| 8 | LX | output | Switching node - external inductor connection. Output of the internal synchronous buck power stage (P-FET/N-FET, RDS(on) ~50mΩ each) switching at 0.8MHz. Connect a 2.2µH-10µH inductor (3.3µH recommended for 3A) between LX and the BAT-side output capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | SOLA IC |+| Package | SOP-8-EP |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `SLM6600`+- `SLM6600S`++## CAD (KiCad official)++- Symbol: `SLM6600`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8-EP (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [SOLA IC datasheet](docs/slm6600-datasheet.pdf) (11 pp, sha256 `013573357cfa1bf4`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/slm6600-datasheet.pdf)

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