# ETA6002E8A

**etasolution** · Battery Management · ESOP-8

ETA6002E8A from etasolution, 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 | SW | output | Switching node of the switching regulator; connect a 1μH to 2.2μH inductor from this pin to SYS. |
| 2 | PGND | power_in | Power ground pin; bypass with a 10μF capacitor to IN. |
| 3 | NTC | input | Thermistor input; the cold charger-suspend threshold is 76.5 %VIN and the hot charger-suspend threshold is 35 %VIN. |
| 4 | STAT | output | Charging status indication pin, an open-drain output capable of driving 10mA current. |
| 5 | ISET | passive | Fast-charge current set pin; a resistor connected from ISET to GND sets the fast-charge current value. |
| 6 | BATT | bidirectional | Battery pin; connect the battery to this pin. |
| 7 | SYS | power_out | System voltage pin and switching regulator output; connect an inductor and capacitor to form the output filter. |
| 8 | IN | power_in | Input pin for an AC adaptor or USB charger output; bypass with a 10μF capacitor each to PGND. |
| 9 | AGND | power_in | Exposed pad for analog ground connection; must be connected to PGND on the PCB. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | etasolution |
| 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 |
|---|---|---|---|---|---|---|---|
| IN input voltage range |  | 4.4 |  | 5.5 | V |  | 2 |
| Battery CV voltage |  | 4.16 | 4.2 | 4.24 | V | IBAT =0mA, Default | 2 |
| AC fast charge current |  | 0.45 | 0.5 | 0.55 | A | RISET1 =2000Ω | 3 |
| BATT to INPUT leakage current |  |  |  | 5 | μA | Input Floating | 2 |
| System minimum voltage VSYSMIN | VSYSMIN | 3.6 |  |  | V | ISYS=1A, Default | 2 |
| System maximum voltage VSYSMAX | VSYSMAX |  |  | 4.5 | V |  | 2 |
| IN, BATT voltage |  | -0.3 |  | 6 | V |  | 2 |
| Operating temperature range |  | -40 |  | 85 | °C |  | 2 |
| Storage temperature range |  | -55 |  | 150 | °C |  | 2 |
| Thermal resistance junction-to-ambient | θJA |  | 50 |  | °C/W | ESOP8 | 2 |

## CAD (KiCad official)

- Symbol: `ETA6002E8A`
- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`
- 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files: `eta6002e8a-etched.step` / `eta6002e8a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `eta6002e8a.step` / `eta6002e8a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [etasolution datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590903840256573440) (9 pp, sha256 `e01ad5efd0b7addc`, retrieved 2026-10-19, tier: lcsc)
- **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/eta6002e8a-datasheet.pdf)