component
EG4318A
Public Made by Adomby adom
EG Micro Battery Management, DIP-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
markdownEG4318A
EG Micro · Battery Management · DIP-8
EG4318A from EG Micro, in a DIP-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 voltage input with an operating range of 3.5V to 18V. |
| 2 | LED_G | output | Charge-complete (float or done) green LED driver that lights when the Isense voltage is below the VFCTR reference, and sources up to 20mA on EG4318/EG4319. |
| 3 | LED_Red | output | Charge-in-progress red LED driver that lights when the Isense voltage is above the VFCTR reference, with a maximum drive capability of 300mA. |
| 4 | GND | power_in | Ground pin. |
| 5 | Isense | input | Constant-current sense input across Rsense, with an internal reference of 250mV for EG4318 and 140mV for EG4319. |
| 6 | Vf | output | Float-voltage control output that is pulled to GND during the constant-voltage stage and left open in the float stage, with its internal float comparator reference set by the suffix (EG4318A: 50mV typical). |
| 7 | Vctrl | input | Output-voltage sense input referenced to an internal 2.5V reference (VREF, 2.475V to 2.525V). |
| 8 | Vout | output | Output-control pin that can only sink current, with a rated output pin voltage of -0.3V to 20V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | EG Micro |
| Package | DIP-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 |
|---|---|---|---|---|---|---|---|
| Supply voltage VCC (absolute maximum) | VCC | -0.3 | 20 | V | 11 | ||
| Input voltage VIN (absolute maximum) | VIN | -0.3 | V | upper limit printed as Vcc | 11 | ||
| Output pin voltage VOUT (absolute maximum) | VOUT | -0.3 | 20 | V | 11 | ||
| Junction temperature TJ (absolute maximum) | TJ | 150 | ℃ | 11 | |||
| Operating temperature range TA | TA | -45 | 85 | ℃ | 11 | ||
| Storage temperature Tstr | Tstr | -65 | 150 | ℃ | 11 | ||
| Soldering temperature TL | TL | 260 | ℃ | T=5S | 11 | ||
| Thermal resistance junction-to-case QJC | QJC | 92 | ℃/W | 11 | |||
| Supply voltage Vcc (operating range) | Vcc | 3.5 | 18 | V | 12 | ||
| Flip/float comparator reference voltage VFCTR (EG4318A) | VFCTR | 45 | 50 | 55 | mV | 12 | |
| Voltage loop internal reference VREF | VREF | 2.475 | 2.5 | 2.525 | V | 12 | |
| Current loop internal reference voltage ISENSE (EG4318) | ISENSE | 245 | 250 | 255 | mV | For EG4318 | 12 |
| Quiescent supply current Icc | Icc | 1.6 | 2 | mA | 12 | ||
| Voltage loop transconductance Gmv (sink current only) | Gmv | 1 | 6 | mA/mV | 12 | ||
| Current loop transconductance Gmi | Gmi | 2 | 30 | mA/mV | 12 | ||
| Input bias current ICTRL (Isense) | IIBI | 0.4 | 1 | uA | 12 | ||
| Output low level (pins 2 and 8) VOL1 | VOL1 | 0.9 | 1.2 | V | Isink=10mA | 12 | |
| Output low level (pin 3) VOL3 | VOL3 | 0.8 | 1 | V | Isink=200mA | 12 | |
| Output low level (pin 6) VOL2 | VOL2 | 0.1 | 0.2 | V | Isink=2mA | 12 |
CAD (KiCad official)
- Symbol:
EG4318A - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files:
eg4318a-etched.step/eg4318a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);eg4318a.step/eg4318a.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 2026-10-16, 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).