component
CN305
Public Made by Adomby adom
ShangHai Consonance Elec Comparators, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownCN305
ShangHai Consonance Elec · Comparators · SOT-23-6
CN305 from ShangHai Consonance Elec, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OVIN | input | Over-voltage detection input. Normally driven by an external resistor divider from the monitored rail. Rising threshold VOVTH+ = 1.211 V (typ), falling threshold VOVTH- = 1.12 V (typ). Input leakage ±100 nA max. |
| 2 | GND | power_in | Device ground reference. |
| 3 | OV | output | Over-voltage detection output, active-low, open-drain. Pulls low when OVIN rises above VOVTH+ (1.211 V typ); releases high when OVIN falls below VOVTH- (1.12 V typ). Requires external pull-up (e.g., 1 MΩ to VCC). Rated VOL = 0.3 V at ISINK up to 6 mA (VCC=5 V). |
| 4 | VCC | power_in | Positive supply input, 1.9 V to 6 V. Typical supply current 11 µA at 3.0 V. Absolute maximum 6.5 V. |
| 5 | UV | output | Under-voltage detection output, active-low, open-drain. Pulls low when UVIN falls below VUVTH- (1.12 V typ); releases high when UVIN rises above VUVTH+ (1.211 V typ). Requires external pull-up (e.g., 1 MΩ to VCC). Rated VOL = 0.3 V at ISINK up to 6 mA (VCC=5 V). |
| 6 | UVIN | input | Under-voltage detection input. Normally driven by an external resistor divider from the monitored rail. Rising threshold VUVTH+ = 1.211 V (typ), falling threshold VUVTH- = 1.12 V (typ). Input leakage ±100 nA max. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ShangHai Consonance Elec |
| Package | SOT-23-6 |
| Category | Op-amp/Cmp |
| Pins | 6 |
Ordering variants
Same part, different packaging or reel option.
CN305
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input voltage range (VCC) | VCC | 1.9 | 6 | V | 5 | ||
| Operating current, VCC=1.9V | IVCC | 5 | 10 | 15 | µA | VCC=1.9V | 5 |
| Operating current, VCC=3.0V | IVCC | 6 | 11 | 16 | µA | VCC=3.0V | 5 |
| Operating current, VCC=5.0V | IVCC | 7 | 12 | 17 | µA | VCC=5.0V | 5 |
| OVIN rising threshold | VOVTH+ | 1.187 | 1.211 | 1.235 | V | OVIN 电压上升 | 5 |
| OVIN falling threshold | VOVTH- | 1.09 | 1.12 | 1.15 | V | OVIN 电压下降 | 5 |
| UVIN rising threshold | VRTH2 | 1.187 | 1.211 | 1.235 | V | UVIN 电压上升 | 5 |
| UVIN falling threshold | VFTH2 | 1.09 | 1.12 | 1.15 | V | UVIN 电压下降 | 5 |
| OVIN pin leakage current | IIN1 | -100 | 0 | 100 | nA | 5 | |
| UVIN pin leakage current | IIN2 | -100 | 0 | 100 | nA | 5 | |
| Output low voltage, VCC=2V | VOL | 0.3 | V | VCC=2V, ISINK=1.5mA | 5 | ||
| Output low voltage, VCC=3V | VOL | 0.3 | V | VCC=3V, ISINK=3.2mA | 5 | ||
| Output low voltage, VCC=5V | VOL | 0.3 | V | VCC=5V, ISINK=6mA | 5 | ||
| Pin voltage relative to GND (VCC, OVIN, UVIN) | VCC,OVIN,UVIN | -0.3 | 6.5 | V | relative to GND | 5 | |
| Pin voltage relative to GND (other pins) | -0.3 | V | relative to GND; upper limit printed as VCC | 5 | |||
| Operating ambient temperature | -40 | 85 | °C | 工作环境温度 | 5 | ||
| Storage temperature | -65 | 150 | °C | 5 | |||
| Soldering temperature | 260 | °C | 10 s | 5 | |||
| Threshold detection accuracy | -2 | 2 | % | detection voltage threshold accuracy (overview) | 1 | ||
| Comparator hysteresis | 7.5 | % | stated in overview text, not in table | 1 | |||
| OVIN to OV propagation delay | tPD1 | 15 | µs | 30mV overdrive | 5 | ||
| UVIN to UV propagation delay | tPD2 | 15 | µs | 30mV overdrive | 5 | ||
| Power-up delay | 2.5 | ms | VCC must exceed 1.9V for the power-up delay (note) | 5 |
CAD (KiCad official)
- Symbol:
CN305 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
cn305-etched.step/cn305-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cn305.step/cn305.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
cn305.step |
97 KB | You want the bare part, or you mark your own boards. |
cn305-etched.step |
1.4 MB | You want the part with CN305 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 327 faces against 117 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ShangHai Consonance Elec datasheet (9 pp, sha256
774b64b8e63e90ec, retrieved 2026-08-17, 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:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).