# BRCL4058ESE

**Foshan Blue Rocket Elec** · Battery Management · ESOP-8

BRCL4058ESE from Foshan Blue Rocket Elec, in a ESOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | TS | input | External NTC temperature-sense input; charging is paused when VTS falls outside the 45%×VDD to 80%×VDD window, and tying TS to GND disables battery temperature detection. |
| 2 | PROG | passive | Charge-current program pin; a 1% resistor to GND sets the charge current via RPROG(kΩ)=1180/IBAT(mA), with charge current up to 1.2 A. |
| 3 | GND | power_in | Chip ground. |
| 4 | VDD | power_in | Input supply from USB or AC adapter, 4.5 V to 6.0 V operating range; absolute maximum -0.3 V to 30 V, with input over-voltage protection at 6.9 V typical. |
| 5 | BAT | power_out | Charger output to the single-cell Li-ion battery, regulated to 4.2 V float voltage (4.158 V to 4.242 V); absolute maximum -0.3 V to 20 V. |
| 6 | STDBY | output | Open-drain full-charge indicator output, high impedance while charging and pulled low when the battery is full; absolute maximum -0.3 V to 30 V. |
| 7 | CHRG | output | Open-drain charge-in-progress indicator output, pulled low while charging; absolute maximum -0.3 V to 30 V. |
| 8 | CE | input | Charge enable input where high level (1.5 V to 5 V) shuts the charger down and low level (0.2 V max) enables operation; absolute maximum -0.3 V to 6 V, leave floating if unused. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Foshan Blue Rocket Elec |
| Package | ESOP-8 |
| Category | Power Management (PMIC) |
| Pins | 9 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Supply Voltage |  | -0.3 |  | 30 | V |  | 2 |
| CHRG Pin Voltage | VCHRG | -0.3 |  | 30 | V |  | 2 |
| STDBY Pin Voltage | VSTDBY | -0.3 |  | 30 | V |  | 2 |
| TS Pin Voltage | VTS | -0.3 |  | 30 | V |  | 2 |
| CE Pin Voltage | VCE | -0.3 |  | 6 | V |  | 2 |
| PROG Pin Voltage | VPROG | -0.3 |  | 6 | V |  | 2 |
| BAT Pin Voltage | VBAT | -0.3 |  | 20 | V |  | 2 |
| Operating Ambient Temperature Range | TA | -40 |  | 85 | °C |  | 2 |
| Junction Temperature | TJ |  |  | 150 | °C |  | 2 |
| Storage Temperature | Tstg | -55 |  | 150 | °C |  | 2 |
| Lead Temperature (Soldering) | Tsolder |  |  | 260 | °C | Soldering, 10s | 2 |
| ESD HBM |  |  |  | 2000 | V |  | 2 |
| Input Supply Voltage |  | 4.5 | 5 | 6 | V |  | 3 |
| Input Over-Voltage Protection Voltage | Vovp | 6.3 | 6.9 | 7.5 | V | VDD Rising | 3 |
| Trickle Charge Threshold | VTRIKL | 2.6 | 2.8 | 3 | V | VBAT Rising | 3 |
| Trickle Charge Current | ITRIKL | 45 | 66 | 85 | mA | VBAT＜VTRIKL, RPROG=1.62 K | 3 |
| BAT Pin Current | IBAT | 657 | 730 | 803 | mA | VDD =5 V,RPROG=1.62 K, VBAT=3.95 V | 3 |
| PROG Pin Voltage | VPROG | 0.9 | 1 | 1.1 | V | VDD=5 V，RPROG=1.62 K | 3 |
| Regulated Output (Float) Voltage | VFLOAT | 4.158 | 4.2 | 4.242 | V | VDD=5V，RPROG=1.62 K | 3 |
| C/10 Termination Current Threshold | ITERM | 45 | 66 | 85 | mA | RPROG=1.62 K | 3 |
| Termination Comparator Filter Time | tTerm | 0.8 | 1.8 | 4 | mS | IBAT Falling Below ITERM | 3 |
| Recharge Comparator Filter Time | tRECHARGE | 0.8 | 1.8 | 4 | mS | VBAT High to Low | 3 |
| Input Supply Current, Charge Mode | ICC |  | 90 | 180 | uA | Charge Mode, RPROG=1.62 K | 3 |
| Input Supply Current, Standby Mode (Charge Terminated) | ICC |  | 60 | 120 | uA | Standby Mode (Charge Terminated) | 3 |
| Input Supply Current, Shutdown Mode | ICC |  | 60 | 120 | uA | Shutdown Mode: RPROG Not Connected, VDD<VBAT, or VDD<VUVL: CE=GND,OVP | 3 |
| BAT Pin Current, VDD Not Connected | IBAT |  | 0.5 | 3 | uA | VDD Not Connected, VBAT=4 V | 3 |
| External temperature too high detection threshold | OTPH | 43 |  | 45 | %×VDD | TS connected to NTC resistance | 4 |
| External temperature too low detection threshold | OTPL | 80 |  | 82 | %×VDD | TS connected to NTC resistance | 4 |
| CE high level (Shutdown Mode) | VCEH | 1.5 |  | 5 | V |  | 4 |

## CAD (KiCad official)

- Symbol: `BRCL4058ESE`
- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`
- 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files: `brcl4058ese-etched.step` / `brcl4058ese-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `brcl4058ese.step` / `brcl4058ese.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Foshan Blue Rocket Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603349387640778752) (10 pp, sha256 `140acff60c2f6ffb`, retrieved 2026-10-19, 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:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/brcl4058ese-datasheet.pdf)