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brcl4054cme
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Foshan Blue Rocket Elec Battery Management, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdownBRCL4054CME
Foshan Blue Rocket Elec · Battery Management · SOT-23-5
BRCL4054CME from Foshan Blue Rocket Elec, in a SOT-23-5. 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 (active low). Strong pull-down (~10mA) via internal N-channel MOSFET during charging; weak ~20µA pull-down when charge terminated (AC present); high-impedance in UVLO. Absolute max -0.3 to 10V. Can sink up to 10mA to drive an LED. |
| 2 | GND | power_in | Device ground return. Also the primary thermal path via the ground lead to the PCB copper heat sink. |
| 3 | BAT | power_out | Charge current output to the single-cell Li-Ion battery. Regulates final float voltage to 4.2V (±1%). Supplies up to 500mA charge current; internal precision resistor divider (disconnected in shutdown) sets the float voltage. Absolute max -0.3 to 7V; short-circuit duration is continuous. |
| 4 | VCC | power_in | Positive input supply voltage, 4.25V to 6.5V (absolute max -0.3 to 10V). Provides power to the charger; must be bypassed with at least a 1µF capacitor. When VCC drops within 30mV of BAT, the device enters shutdown and IBAT drops below 2µA. |
| 5 | PROG | bidirectional | Charge-current program, charge-current monitor, and shutdown pin. A 1% resistor RPROG from PROG to GND sets ICHG = 1000V / RPROG (e.g. 2k → 500mA, 10k → 100mA). In constant-current mode this pin servos to 1V; IBAT = (VPROG/RPROG) × 1000. Floating the pin lets an internal 3µA pull-up drive PROG above the 1.21V shutdown threshold, forcing shutdown mode (ICC drops to 25µA). Pin is clamped to ~2.4V; driving beyond can draw up to 1.5mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Foshan Blue Rocket Elec |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
BRCL4054CME - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Foshan Blue Rocket Elec datasheet (None pp, sha256
bdd23814d94e357d, retrieved 2026-08-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).