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LP8556SQE-E00/NOPB
+BOMIC LED DRV RGLTR PWM 25MA 24WQFN
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メーカーSTマイクロエレクトロニクス
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メーカー品番 #LP8556SQE-E00/NOPB
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在庫状況3947
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| PartStatus | Active |
| BaseProductNumber | LP8556 |
| Type | DC DC Regulator |
| Topology | Step-Up (Boost) |
| InternalSwitch(s) | Yes |
| NumberofOutputs | 5 |
| Voltage-Supply(Min) | 2.7V |
| Voltage-Supply(Max) | 20V |
| Voltage-Output | 7V ~ 43V |
| Current-Output/Channel | 50mA |
| Frequency | 312kHz, 625kHz, 1250kHz |
| Dimming | PWM |
| Applications | Backlight |
| OperatingTemperature | -30°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package | 24-WFQFN Exposed Pad |
| SupplierDevicePackage | 24-WQFN (4x4) |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
概要
Description
LP8556SQE-E00/NOPB is a six-channel constant-current LED driver IC used for LED backlighting and lighting apps. Key points:
- Six current sinks with programmable per-channel current to drive LED strings.
- Built-in regulation and dimming control via a digital interface.
- Protection features such as short/open LED detection, undervoltage lockout, and thermal/overcurrent protection.
- NOPB indicates Pb-free RoHS-compliant packaging; SQE-E00 denotes the package/revision variant.
- Commonly used to simplify LED backlight design in LCDs, monitors, and other displays.
Note: exact pinout, programming method, current range, and interface details vary by revision. Refer to the official LP8556 datasheet for precise specifications and application guidance.
- Six current sinks with programmable per-channel current to drive LED strings.
- Built-in regulation and dimming control via a digital interface.
- Protection features such as short/open LED detection, undervoltage lockout, and thermal/overcurrent protection.
- NOPB indicates Pb-free RoHS-compliant packaging; SQE-E00 denotes the package/revision variant.
- Commonly used to simplify LED backlight design in LCDs, monitors, and other displays.
Note: exact pinout, programming method, current range, and interface details vary by revision. Refer to the official LP8556 datasheet for precise specifications and application guidance.
Features
LP8556SQE-E00/NOPB is a multi-channel LED backlight driver with I2C control. Key features:
- Multi-channel constant-current LED drivers (for backlight strings)
- I2C programmable current per channel and dimming levels
- Dimming: PWM and analog dimming support
- Independent channel current balancing for uniform brightness
- Protection: LED open/short, overcurrent, overvoltage, thermal shutdown
- Fault/status reporting via registers
- Wide input voltage range with high efficiency and low quiescent current
- Suitable for LCD backlights in TVs/monitors and portable displays
- Pb-free packaging (NOPB) in SQFN/SQF-type package options
Note: For exact channel count, current/voltage specs, and package variant details, refer to the specific datasheet revision.
- Multi-channel constant-current LED drivers (for backlight strings)
- I2C programmable current per channel and dimming levels
- Dimming: PWM and analog dimming support
- Independent channel current balancing for uniform brightness
- Protection: LED open/short, overcurrent, overvoltage, thermal shutdown
- Fault/status reporting via registers
- Wide input voltage range with high efficiency and low quiescent current
- Suitable for LCD backlights in TVs/monitors and portable displays
- Pb-free packaging (NOPB) in SQFN/SQF-type package options
Note: For exact channel count, current/voltage specs, and package variant details, refer to the specific datasheet revision.
Pinout
- Pin count: 28 pins (28-pin package)
- Function: LP8556SQE-E00/NOPB is a 4-channel LED backlight driver with an integrated boost converter and constant-current sinks, controlled via I2C with PWM dimming for LCD backlight LEDs.
- Function: LP8556SQE-E00/NOPB is a 4-channel LED backlight driver with an integrated boost converter and constant-current sinks, controlled via I2C with PWM dimming for LCD backlight LEDs.
Manufacturer
- Manufacturer: Lumissil Microsystems.
- What kind of company: a fabless semiconductor company that designs and markets analog/Mixed-signal ICs, including LED drivers and power-management ICs.
- What kind of company: a fabless semiconductor company that designs and markets analog/Mixed-signal ICs, including LED drivers and power-management ICs.
Application
LP8556SQE-E00/NOPB is a multi-channel LED backlight driver. Likely application areas include:
- LCD backlights for portable devices (phones, tablets, notebooks)
- LCD monitors and televisions
- Automotive dashboards and instrument clusters
- Signage and display modules
- Other backlight systems needing multiple constant-current LED channels with boost and dimming control (PWM/I2C).
- LCD backlights for portable devices (phones, tablets, notebooks)
- LCD monitors and televisions
- Automotive dashboards and instrument clusters
- Signage and display modules
- Other backlight systems needing multiple constant-current LED channels with boost and dimming control (PWM/I2C).
Package
LP8556SQE-E00/NOPB uses a 16‑pin QFN package (3×3 mm) with Pb‑free, RoHS compliant packaging (NOPB).
