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LP8556SQE-E00/NOPB
+BOMIC LED DRV RGLTR PWM 25MA 24WQFN
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Nhà sản xuấtTexas Dụng cụ
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Ông. Phần #LP8556SQE-E00/NOPB
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Part Status | Active |
| Base Product Number | LP8556 |
| Type | DC DC Regulator |
| Topology | Step-Up (Boost) |
| Internal Switch(s) | Yes |
| Number of Outputs | 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 |
| Operating Temperature | -30°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 24-WFQFN Exposed Pad |
| Supplier Device Package | 24-WQFN (4x4) |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
Tổng quan
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).
