component
ETA9640E8A
Public Made by Adomby adom
etasolution Battery Management, ESOP8. Pinout cross-checked by two models against the datasheet, 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
markdownETA9640E8A
etasolution · Battery Management · ESOP8
ETA9640E8A from etasolution, in a ESOP8. 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 | ACIN | input | Charger input pin that connects to an AC adaptor or a USB charger output. |
| 2 | BAT | power_in | Battery input pin that should be bypassed to GND with a 10uF or greater ceramic capacitor. |
| 3 | EN | input | Enable pin that must be driven high to enable the IC, and is disabled when driven low or left floating. |
| 4 | SW | output | Switching node of the switching regulator that connects through a 1uH to 4.7uH inductor to the positive terminal of the battery. |
| 5 | OUT | power_out | Output pin that should be bypassed to ground closely with a 22uF or larger ceramic capacitor. |
| 6 | GP | power_in | Power ground pin for the IC. |
| 7 | LED | output | Pin that drives the LED for battery quantity display or torch lighting, with a stated LED sink current of 5 mA. |
| 8 | ISET | passive | Charge current set pin where a resistor Rset connected to GND sets the fast charge current as Icharge = 1000/Rset (A). |
| 9 | GA | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | etasolution |
| Package | ESOP8 |
| Category | Power Management (PMIC) |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
ETA9640E8A - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: ESOP8 (KiCad packages3D, STEP)
- 3D model files:
eta9640e8a-etched.step/eta9640e8a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);eta9640e8a.step/eta9640e8a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: etasolution datasheet (5 pp, sha256
014ca14220df5b10, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).