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EG1166
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EG Micro AC-DC Controllers And Regulators, SOP-16. 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
markdownEG1166
EG Micro · AC-DC Controllers And Regulators · SOP-16
EG1166 from EG Micro, in a SOP-16. 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 | REF5V | output | Provides the 5V reference output, which can supply up to 10mA and should be bypassed with a close 1uF ceramic capacitor. |
| 2 | EN | input | Enable input with a 1.2V comparison threshold; when the pin is below 1.2V the chip enters standby and the 5V output is turned off. |
| 3 | SS | input | Soft-start pin where an external capacitor sets the voltage rise rate and therefore the soft-start time. |
| 4 | VSS | power_in | Analog signal ground (AGND) for the chip's control circuitry. |
| 5 | CP | input | Oscillator timing pin where an external capacitor Cp sets the switching frequency according to f = 6.6×10^6 / Cp (Cp in pF), giving about 66kHz at 100pF. |
| 6 | ERRO | output | Output of the voltage-loop error amplifier. |
| 7 | FB | input | Negative input of the voltage-loop error amplifier, regulated to a 1.2V reference (1.188V to 1.212V). |
| 8 | PPWM | output | Early (advanced) PWM output that leads the HO drive by about 400ns. |
| 9 | PPWMN | output | Inverted early PWM output that leads the HO drive by about 400ns. |
| 10 | IS | input | Current comparator input, where the peak current limit is set by IPK = 180mV / Rsen referenced to COM. |
| 11 | LO | output | Drives the low-side power MOSFET on and off, with a 600V-rated half-bridge driver stage on the chip. |
| 12 | COM | power_in | Power ground (PGND) for the gate-drive and output stage. |
| 13 | VCC | power_in | Chip supply input with an operating range of 9V to 20V, with UVLO turn-on at about 16V and turn-off at about 8V to 9V. |
| 14 | VS | power_in | High-side floating ground reference for the high-side driver. |
| 15 | VB | power_in | High-side floating supply for the high-side driver, rated up to 600V relative to VS. |
| 16 | HO | output | Drives the high-side power MOSFET on and off. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | EG Micro |
| Package | SOP-16 |
| Category | Power Management (PMIC) |
| Pins | 16 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 高端输出 (min VS-0.3 / max VB+0.3) | HO | -0.3 | 0.3 | V | 8 | ||
| 自举高端 VB 电源 | VB | -0.3 | 600 | V | 8 | ||
| 高端悬浮地端 (min VB-20 / max VB+0.3) | VS | -20 | 0.3 | V | 8 | ||
| 低端电源 | VCC | -0.3 | 20 | V | 8 | ||
| 低端输出 (max VCC+0.3) | LO、PPWM、PPWMN | -0.3 | 0.3 | V | 8 | ||
| 低端比较器输入 | IS | -0.3 | 5 | V | 8 | ||
| 低压端口 | FB、ERRO、CP、SS、REF5V | -0.3 | 5.5 | V | 8 | ||
| 控制端口 | EN | -0.3 | 20 | V | 8 | ||
| 环境温度 | TA | -45 | 125 | ℃ | 8 | ||
| 储存温度 | Tstr | -65 | 150 | ℃ | 8 | ||
| 焊接温度 | TL | 300 | ℃ | T=10S | 8 | ||
| 高压电源 VB 输入电压 | VB | 9 | 600 | V | 8 | ||
| 低压电源 VCC 输入电压 | VCC | 9 | 20 | V | 8 | ||
| VCC 开启电压 | VCC（ON） | 15 | 16 | 17 | V | 8 | |
| VCC 关闭电压 | VCC（OFF） | 8 | 9 | 10 | V | 8 | |
| 5V 基准输出 | REF5V | 4.8 | 4.9 | 5 | V | VCC 开启，VCC=12V | 8 |
| 线性调整率 | ΔVREF | 3 | 50 | mV | VCC=10V to 20V | 8 | |
| 负载调整率 | ΔVREF | 5 | 50 | mV | IL=0 to 10mA | 8 | |
| 最大输出电流 | Io | 10 | mA | 9 | |||
| 振荡频率范围 | Fosc | 60 | 66 | 72 | KHz | CT=100pF | 9 |
| 电压抑制比 (printed ±3 typ, ±5 max) | Δf/ΔVCC | -5 | 3 | 5 | % | CT=100pF | 9 |
| 温度漂移 (printed ±5 typ, ±8 max) | Δf/ΔT | -8 | 5 | 8 | % | 9 | |
| 误差放大器反馈端 | FB | 1.188 | 1.2 | 1.212 | V | 9 | |
| 误差放大器输出电流能力 | Ierro | 15 | 20 | 25 | uA | 9 | |
| 输入偏置电流 | Ib | 0.1 | uA | 9 | |||
| 开环增益 | AVOL | 60 | 75 | dB | 9 | ||
| 最大输出占空比 | D(max) | 48 | 50 | % | CT=100pF | 9 | |
| EN 使能端比较电压 | EN | 1.15 | 1.2 | 1.25 | V | 9 | |
| HO、LO 开启关闭时间差值 | MT | 50 | nS | 9 | |||
| LO、HO 输出拉电流 | IO+ | 1.5 | 2 | A | Vo=0V,PW≤10uS | 9 | |
| LO、HO 输出灌电流 | IO- | 2 | 2.5 | A | Vo=12V,PW≤10uS | 9 | |
| VCC 启动电流 | Istart | 200 | 300 | uA | 8 | ||
| PPWM 提前时间 | PPWM | 400 | nS | 9 | |||
| 电流比较器相对 COM 电压 | IS | 180 | mV | 9 | |||
| 前沿消隐 | LEB | 300 | nS | 9 | |||
| PPWM、PPWMN 输出拉电流 | I0+PPWM | 0.1 | A | Vo=0V,PW≤10uS | 9 | ||
| PPWM、PPWMN 输出灌电流 | I0-PPWM | 0.1 | A | Vo=12V, PW≤10uS | 9 |
CAD (KiCad official)
- Symbol:
EG1166 - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOP-16 (KiCad packages3D, STEP)
- 3D model files:
eg1166-etched.step/eg1166-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);eg1166.step/eg1166.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: EG Micro datasheet (12 pp, sha256
b653e8a6cf855d43, retrieved 2026-10-18, 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).