component
EG4319
Public Made by Adomby adom
EG Micro Battery Management, SOP-8. 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
markdownEG4319
EG Micro · Battery Management · SOP-8
EG4319 from EG Micro, in a SOP-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 | VCC | power_in | Supply input with an operating range of 3.5 V to 18 V, and a absolute maximum VCC rating of 20 V. |
| 2 | LED_G | output | Green LED indicator output for the float/charge-complete state, able to drive up to 20 mA per section 8.7. |
| 3 | LED_Red | output | Red LED indicator output for charge-in-progress, able to drive up to 300 mA per section 8.7. |
| 4 | GND | power_in | Ground reference pin. |
| 5 | Isense | input | Constant-current sense input whose internal reference is 140 mV for EG4319, with Rsense = 140 mV / Ilimit. |
| 6 | Vf | output | Float-voltage control output with a 20 mV internal reference for EG4319; it is pulled to GND in the constant-voltage stage and left open in the float stage. |
| 7 | Vctrl | input | Output-voltage sense input referenced to an internal 2.5 V reference (VREF 2.475 V to 2.525 V). |
| 8 | Vout | output | Output control pin that can only sink current, with an output withstand rating of 20 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | EG Micro |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 电源电压 (VCC absolute maximum, supply voltage) | VCC | -0.3 | 20 | V | 11 | ||
| 输入电压 (input voltage) | VIN | -0.3 | V | 11 | |||
| 输出端耐压 (output pin voltage rating) | VOUT | -0.3 | 20 | V | 11 | ||
| 结温 (junction temperature) | TJ | 150 | ℃ | 11 | |||
| 工作温度范围 (operating temperature range) | TA | -45 | 85 | ℃ | 11 | ||
| 储存温度 (storage temperature) | Tstr | -65 | 150 | ℃ | 11 | ||
| 焊接温度 (soldering temperature) | TL | 260 | ℃ | T=5S | 11 | ||
| 热阻 (thermal resistance) | QJC | 92 | ℃/W | 11 | |||
| 电源 (supply voltage operating range) | Vcc | 3.5 | 18 | V | 12 | ||
| 静态电流 (quiescent current) | Icc | 1.6 | 2 | mA | 12 | ||
| 跨导增益(VCTRL) 仅吸收电流 (transconductance, sink only) | Gmv | 1 | 6 | mA/mV | 12 | ||
| 电压环内部基准电压 (voltage loop internal reference) | VREF | 2.475 | 2.5 | 2.525 | V | 12 | |
| 跨导增益(ICTRL) (transconductance, current loop) | Gmi | 2 | 30 | mA/mV | 12 | ||
| 电流环内部基准电压 ISENSE (For EG4319，EG4320) | ISENSE | 135 | 140 | 145 | mV | 12 | |
| 输入偏置电流(ICTRL) (input bias current, current loop) | IIBI | 0.4 | 1 | uA | 12 | ||
| 浮充比较器基准电压 (float comparator reference, EG4319) | VFCTR | 18 | 20 | 22 | mV | 12 | |
| 输出脚低电平（2 脚，8 脚） (output low level, pins 2 and 8) | VOL1 | 0.9 | 1.2 | V | Isink=10mA | 12 | |
| 输出脚低电平（3 脚） (output low level, pin 3) | VOL3 | 0.8 | 1 | V | Isink=200mA | 12 | |
| 输出脚低电平（6 脚） (output low level, pin 6) | VOL2 | 0.1 | 0.2 | V | Isink=2mA | 12 |
CAD (KiCad official)
- Symbol:
EG4319 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
eg4319-etched.step/eg4319-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);eg4319.step/eg4319.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: EG Micro datasheet (19 pp, sha256
5ec5ec9aca410e78, retrieved 2026-10-17, 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: 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).