component
CN5728
Public Made by Adomby adom
ShangHai Consonance Elec LED Drivers, SOP-8-EP. 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
markdownCN5728
ShangHai Consonance Elec · LED Drivers · SOP-8-EP
CN5728 from ShangHai Consonance Elec, in a SOP-8-EP. 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 | MODE | input | Operating mode select: grounded cycles high, flash, off; floating cycles high, low, off; tied to VCC cycles high, low, flash, off. |
| 2 | ISET | passive | Sets high-brightness LED current via a resistor RISET to ground, ILED = 1800V/RISET. |
| 3 | GND | power_in | Power ground. |
| 4 | VCC | power_in | Positive supply, must be 2.85V to 6V and above LED forward voltage plus the required VCC-to-LED dropout. |
| 5 | LED | output | LED anode connection; LED current flows out of this pin (up to 1.5A) with the LED cathode to ground. |
| 6 | CT | passive | Timing capacitor connection to internal oscillator, setting flash period = 3.96×10^7 × C seconds (C in farads). |
| 7 | BTN | input | Push-button input to ground with internal pull-up and debounce; each press advances the LED state. |
| 8 | CE | input | Chip enable input: high enables normal operation, low disables the chip; TTL or CMOS drivable. |
| 9 | EP | power_in | Exposed thermal pad, connected to ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ShangHai Consonance Elec |
| Package | SOP-8-EP |
| Category | Display Modules / LED Drivers / Display Drivers |
| Pins | 9 |
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 | 2.85 | 6 | V | VCC=3.7V, TA=25℃ | 5 | |
| Operating current | IVCC1 | 250 | 310 | 370 | µA | RISET=1.8kΩ, ILED=0A | 5 |
| LED pin output current, high-brightness | ILED1 | 0.95 | 1 | 1.05 | A | RISET=1.8kΩ, 强光状态 | 5 |
| LED pin output current, low-brightness | ILED2 | 346 | 365 | 383 | mA | RISET=1.8kΩ, 弱光状态 | 5 |
| LED pin current accuracy | -5 | 5 | % | 5 | |||
| Current into MODE pin | IMODE1 | 5 | 7.5 | 10.3 | µA | VMODE=3.7V, VCE=3.7V | 5 |
| Current out of MODE pin | IMODE2 | 5.2 | 7.9 | 10.6 | µA | VMODE=0V, VCE=3.7V | 5 |
| Debounce time | tdebounce | 20 | 36 | 52 | ms | 5 | |
| CE input low level | VCEL | 0.6 | V | CE电压下降 | 5 | ||
| CE input high level | VCEH | 2.3 | V | CE电压上升 | 5 | ||
| CE input current low | ICEL | -1 | µA | CE=GND, VIN=6V | 5 | ||
| CE input current high | ICEH | 1 | µA | CE=VIN=6V | 5 | ||
| Shutdown-state operating current, MODE floating | IVCC2 | 26 | µA | LED关断状态, MODE管脚悬空 | 5 | ||
| Off-state operating current, MODE to GND or VCC | IVCC2 | 15 | µA | LED关断状态, MODE管脚接地或接VCC | 5 | ||
| Disable current, MODE to VCC or floating | IVCC3 | 1 | µA | VCE=0V, MODE管脚接VCC或悬空 | 5 | ||
| Disable current, MODE to GND | IVCC3 | 8 | 12 | µA | VCE=0V, MODE管脚接地 | 5 | |
| Dropout voltage | VDROP | 40 | mV | ILED=100mA×95% | 5 | ||
| Dropout voltage | VDROP | 85 | mV | ILED=350mA×95% | 5 | ||
| Dropout voltage | VDROP | 130 | mV | ILED=500mA×95% | 5 | ||
| Dropout voltage | VDROP | 300 | mV | ILED=900mA×95% | 5 | ||
| Dropout voltage | VDROP | 360 | mV | ILED=1.2A×95% | 5 | ||
| Dropout voltage | VDROP | 400 | mV | ILED=1.5A×95% | 5 | ||
| Flash period temperature coefficient | -0.24 | %/℃ | CN5728在爆闪状态 | 5 | |||
| Soft-start time | 150 | µs | 5 | ||||
| BTN pin pull-up resistance | RBTN | 52 | kΩ | 5 | |||
| Pin voltage | -0.3 | 6.5 | V | 4 | |||
| Maximum junction temperature | 150 | ℃ | 4 | ||||
| Operating temperature range | -40 | 85 | ℃ | 4 | |||
| Storage temperature | -65 | 150 | ℃ | 4 | |||
| Thermal resistance, junction to ambient | θJA | 90 | ℃/W | no heatsink, no airflow (approx.) | 6 |
CAD (KiCad official)
- Symbol:
CN5728 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
cn5728-etched.step/cn5728-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cn5728.step/cn5728.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ShangHai Consonance Elec datasheet (9 pp, sha256
5ab9af78d78f755e, retrieved 2026-10-22, 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-sonnet-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).