component
SLM4900
Public Made by Adomby adom
SOLA IC Battery Management, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSLM4900
SOLA IC · Battery Management · SOT-23-6
SLM4900 from SOLA IC, in a SOT-23-6. 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 | CHRG | output | Open-drain charge status output. Pulled low by an internal N-channel MOSFET while the battery is charging. Forced high-impedance when the charge cycle completes or when an under-voltage lockout is detected. Typically drives a red LED indicator. |
| 2 | GND | power_in | Device ground. Also serves as the primary thermal path from the die through the leadframe to the PCB copper. |
| 3 | BAT | power_out | Charge current output. Provides charge current to the single-cell Li-Ion battery and regulates the final float voltage to 4.2 V (±1%). An internal precision resistor divider from this pin sets the float voltage and is disconnected in shutdown mode. |
| 4 | VCC | power_in | Positive input supply voltage to the charger. Operating range 4.25 V to 6.5 V (absolute max +8 V). Should be bypassed with at least a 0.1 μF or 1 μF capacitor to GND close to the pin. |
| 5 | STDBY | output | Open-drain standby/full status output. Pulled low by an internal N-channel MOSFET when the battery is fully charged; otherwise forced high-impedance. Typically drives a green LED indicator. |
| 6 | PROG | bidirectional | Charge-current program, monitor, and shutdown pin. A 1% resistor RPROG to GND sets the constant-current charge current per IBAT = 900·VPROG/RPROG; the pin servos to 1 V in constant-current mode. Disconnecting RPROG lets an internal ~3 μA pull-up drive the pin above the 1.94 V shutdown threshold, entering shutdown (ICC drops to ~25 μA). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SOLA IC |
| Package | SOT-23-6 |
| Category | PMIC |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
SLM4900 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SOLA IC datasheet (9 pp, sha256
c346b2e6046f0b90, 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).