GUI für Evaluierungsmodul (EVM)
LP5030
30-kanaliger I2C-Konstantstromtreiber für RGB-LEDs
Datenblatt
LP5030
- Operating Voltage Range:
- VCC Range: 2.7 V to 5.5 V
- EN, SDA, and SCL Pins Compatible With 1.8-V, 3.3-V, and 5-V Power Rails
- Output Maximum Voltage: 6 V
- 36 Constant-Current Sinks With High Precision
- 25.5 mA Maximum per Channel When VCC in Full Range
- 35 mA Maximum per Channel When VCC ≥ 3.3 V
- Device-to-Device Error ±5%; Channel-to-Channel Error ±5%
- Ultralow Quiescent Current:
- Shutdown Mode: 1 µA (Maximum) When EN Low
- Power Saving Mode: 12 µA (Maximum) When EN High and All LEDs Off for > 30 ms
- Integrated 12-Bit, 29-kHz PWM Generator for Each Channel:
- Independent Color-Mixing Register Per Channel
- Independent Brightness-Control Register Per RGB LED Module
- Optional Logarithmic- or Linear-Scale Brightness Control
- Integrated 3-Phase-Shifting PWM Scheme
- 3 Programmable Banks (R, G, B) for Easy Software Control of Each Color
- 2 External Hardware Address Pins Allow Connecting up to 4 Devices
- Broadcast Slave Address Allows Configuring Multiple Devices Simultaneously
- Auto-Increment Allows Writing or Reading Consecutive Registers Within One Transmission
- Up to 400-kHz Fast-Mode I2C Speed
Efficient and high-performance LED response effects, such as blinking, breathing, and chasing, are critical to improving end-user experience in many human machine interface (HMI) applications.
The LP503x device is a 30- or 36-channel constant-current-sink LED driver. The LP503x has a 29 kHz, 12-Bit PWM generator for each channel, as well as channel/module independent color mixing and intensity control, formerly called brightness control registers to enable vivid LED effects with zero audible noise. Users can benefit from the device’s ultra-low shutdown Iq Power Saving Mode, while designers will appreciate the incredibly straightforward software coding of the LP503x’s three programmable R G B banks.
The LP503x device controls each LED output with a 12-bit PWM resolution at 29-kHz switching frequency. This control helps get an intensity that decreases smoothly and stops audible noise. Having different color-mixing and intensity-control registers makes writing the software code straightforward. When targeting fade-in, fade-out type breathing effects, the global R, G, B bank control reduces the microcontroller loading significantly. The LP503x device also implements a PWM phase-shifting function to help reduce the input power budget when LEDs turn on simultaneously.
The LP503x device has an automatic power-saving mode to get the ultra-low quiescent current. When channels are all off for 30 ms, the device total power consumption is down to 10 µA, making the LP503x device a possible alternative for battery-powered end equipment.
Technische Dokumentation
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Alle anzeigen 6 | Typ | Titel | Datum | ||
|---|---|---|---|---|
| * | Data sheet | LP503x 36-, 30-Channel 12-Bit PWM Ultra-low Quiescent Current I2C RGB LED Drivers datasheet (Rev. B) | PDF | HTML | 21 Jan 2019 |
| White paper | Common LED Functions and LED Driver Design Considerations | 21 Sep 2020 | ||
| Application note | System Design Guidelines for Full-Color RGB LED Matrix Based on LP50xx Device | 08 Apr 2020 | ||
| Application note | How to Select a RGB LED Driver | 08 Aug 2019 | ||
| White paper | Smart speaker fundamentals: Weighing the many design trade-offs | 25 Feb 2019 | ||
| Technical article | Using an RGBW LED driver to elevate LED human-machine interface designs | PDF | HTML | 27 Nov 2018 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
Evaluierungsplatine
LP5036EVM — LP5036EVM, 12-Bit-PWM RGB-LED-Treiber mit I2C-Schnittstelle und extrem geringem Ruhestrom, geeignet
What you need to get started:
Step 1: Order the hardware
Step 2: Download and install the LP50EVM user GUI and review the EVM users guide
Step 3: If you plan to use a MCU based system software, please see this (...)
Step 1: Order the hardware
Step 2: Download and install the LP50EVM user GUI and review the EVM users guide
- Our LP50EVM GUI is used with the LP50EVM to evaluate the features of the LP50xx device.
Step 3: If you plan to use a MCU based system software, please see this (...)
Simulationstool
PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool
PSpice® für TI ist eine Design- und Simulationsumgebung, welche Sie dabei unterstützt, die Funktionalität analoger Schaltungen zu evaluieren. Diese voll ausgestattete Design- und Simulationssuite verwendet eine analoge Analyse-Engine von Cadence®. PSpice für TI ist kostenlos erhältlich und (...)
| Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
|---|---|---|
| VQFN (RJV) | 46 | Ultra Librarian |
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