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Texas Instruments LP5812DYBHR
- Part No.:
- LP5812DYBHR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 9-BGA, DSBGA
- Datasheet:
-
LP5812DYBHR.pdf
- Description:
- 4 X 3 MATRIX RGB LED DRIVER WITH
- Quantity:
- Payment:
- Shipping:
Inventory:2,995
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Product details
Overview
LP5812DYBHR from Texas Instruments is a 4 × 3 matrix RGB LED driver IC with autonomous animation engine, time-cross-multiplexing (TCM) topology, and integrated de-ghosting. It delivers up to 51 mA per channel with ±5% device-to-device and channel-to-channel current error, ultra-low 110 mV headroom at 25.5 mA, and supports 24 kHz audible-noise-free PWM dimming. It enables compact LED indication in space-constrained portable electronics.
For engineers reviewing the LP5812DYBHR datasheet, LP5812DYBHR pinout, LP5812DYBHR application, or LP5812DYBHR equivalent, key selection criteria include its WSON-8 package footprint, I²C-compatible 1 MHz interface, autonomous animation capability, TCM/direct/mix-drive mode flexibility, and integrated open/short detection for robust LED system design.
Technical Context
The LP5812DYBHR implements a time-cross-multiplexing (TCM) architecture using four bidirectional output pins-each integrating a high-side PMOS scan switch and low-side constant-current sink-to drive up to 12 LEDs (e.g., 4 RGB) with ¼–1 multiplexing ratios. Its autonomous animation engine executes preloaded lighting sequences without MCU intervention, synchronized via a programmable 6 MHz internal oscillator.
It supports three operational modes: direct drive (4 LEDs), TCM drive (up to 12 LEDs), and mix drive (combined), all configurable via I²C registers. Integrated de-ghosting uses voltage clamping at Vmid during blank periods to eliminate both up- and down-side ghosting, while individual 8-bit dot current (DC) and global 1-bit maximum current (MC) enable precise analog dimming control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 5.5 V - Supports single-supply operation across battery-powered and USB-powered systems. |
| LED Drive Capability | Up to 12 LEDs (4×3 matrix) or 4 RGB LEDs - Achieved via TCM topology with 4 outputs, minimizing PCB routing and component count. |
| Constant Current Range | 0.1 mA to 51 mA per sink - Configurable via 1-bit MC (25.5/51 mA) and 8-bit DC (256 steps), enabling fine-grained brightness control. |
| Headroom Voltage | 110 mV (typ.) at 25.5 mA - Enables efficient LED operation even with low forward-voltage red/green/blue diodes. |
| PWM Frequency | 24 kHz (audible-noise-free) - Eliminates perceptible flicker and acoustic noise in consumer-facing lighting effects. |
| I²C Interface Speed | Up to 1 MHz - Allows rapid register writes for dynamic animation updates and real-time brightness adjustments. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial and consumer environments including wearables and EV chargers. |
Pinout & Package
LP5812DYBHR is packaged in an 8-pin WSON (DSD) package measuring 3 mm × 3 mm with exposed thermal pad. This thermally enhanced, surface-mount package supports high-density layouts in portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power input | Supplies internal circuitry and boost converter; requires 22 μF capacitor to GND for stability. |
| GND | Ground reference | Thermal pad connection point; must be soldered to PCB ground plane for thermal management. |
| OUT0–OUT3 | Bidirectional LED interface | Each integrates high-side scan FET + low-side current sink; supports TCM, direct, or mix-drive configurations. |
| SCL | I²C clock input | Accepts standard/fast/fast-mode-plus timing; compatible with 1.8 V/3.3 V/5 V logic levels. |
| SDA | I²C data I/O | Open-drain interface with internal pull-up; supports multi-master I²C bus sharing. |
| SYNC | Multi-device synchronization | Enables frame-aligned lighting effects across multiple LP5812 devices; can be grounded if unused. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous animation engine | Executes stored lighting sequences independently-reduces MCU real-time load and simplifies firmware for complex LED effects. |
| Integrated de-ghosting | Voltage clamping at configurable Vmid eliminates visual artifacts in multiplexed LED matrices without external components. |
| Individual LED open/short detection | Monitors each LED path in real time; reports faults via status registers to enable fail-safe UI behavior. |
| Ultra-low active current | 0.4 mA typical at 25.5 mA LED current-extends battery life in earbuds, smartwatches, and IoT sensors. |
| Multiplexing mode flexibility | Configurable TCM (1–4 scans), direct, or mix-drive modes-adapts to varying LED counts, colors, and PCB layout constraints. |
Applications
| Smart Wearable Indicators | Gaming Peripheral Lighting |
|---|---|
Use Scenario: Real-time status feedback on wireless earbuds and charging cases, including pairing, battery level, and touch gestures. IC Role / Device Role / Timing Role: LED driver with autonomous animation engine managing RGB indicators without continuous MCU polling. Use Value: Enables vivid, low-power lighting sequences with <0.4 mA active current and 24 kHz flicker-free PWM. |
Use Scenario: Dynamic RGB illumination on gaming mice and VR controllers synchronized with game events or user profiles. IC Role / Device Role / Timing Role: Matrix LED driver supporting TCM-driven 4×3 RGB arrays with multi-device SYNC for coordinated lighting effects. Use Value: Delivers smooth, artifact-free animations using integrated de-ghosting and 6 MHz internal oscillator synchronization. |
| IoT Smart Device UI | Industrial HMI Status Panels |
Use Scenario: Visual alerts and state indicators on video doorbells, e-tags, and smart home hubs with limited board space. IC Role / Device Role / Timing Role: Compact LED driver in 3 mm × 3 mm WSON package driving up to 12 discrete LEDs or 4 RGB units. Use Value: Reduces solution size by eliminating external current-setting resistors and ghosting compensation circuitry. |
Use Scenario: Fault, power, and operational status indication on EV chargers and factory HMIs operating in extended temperature ranges. IC Role / Device Role / Timing Role: Robust LED controller qualified from –40°C to +85°C with thermal shutdown and LED open/short diagnostics. Use Value: Ensures reliable visual feedback under industrial conditions with ±5% current accuracy and integrated fault reporting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RGB LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LP5812BYBHR | Different I²C address (bit 3 = 1, bit 4 = 0); identical electrical specs and package. | Same functionality; used when multiple LP5812 devices share one I²C bus. | Select when requiring distinct I²C addressing on a common bus-no hardware or firmware changes needed beyond address configuration. |
| LP5813DYBHR | Boost-based architecture (vs. linear); higher efficiency at >3.3 V supply; DSBGA-12 package (1.43 mm × 1.34 mm). | Better suited for battery-powered systems where supply voltage drops below LED forward voltage; smaller footprint but lower thermal mass. | Choose for higher-efficiency LED driving in low-VCC scenarios; verify thermal performance in enclosed enclosures due to smaller package. |
Compared with LP5812DYBHR, LP5812BYBHR offers identical performance with alternate I²C addressing for multi-device systems, while LP5813DYBHR trades linear regulation for boost conversion-improving efficiency at low input voltages but requiring different layout and thermal handling.
Availability
LP5812DYBHR is available at Aetrix Electronics and suitable for portable electronics, gaming peripherals, and industrial HMI applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LP5812DYBHR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in precision LED control and low-power system solutions.
The LP5812DYBHR belongs to TI's LP58xx family of autonomous RGB LED drivers, designed specifically for compact, battery-sensitive consumer and industrial UI applications requiring rich lighting effects with minimal MCU overhead.
FAQ
What is the package type and dimensions of the LP5812DYBHR?
The LP5812DYBHR uses an 8-pin WSON (DSD) package measuring 3 mm × 3 mm with an exposed thermal pad. This thermally optimized, leadless package supports high-density PCB layouts and meets JEDEC moisture sensitivity level 2a requirements for standard SMT assembly.
Does the LP5812DYBHR support both analog and PWM dimming?
Yes, the LP5812DYBHR supports dual dimming methods: analog dimming via global 1-bit Maximum Current (MC) and individual 8-bit Dot Current (DC) settings, plus PWM dimming with 8-bit resolution and selectable linear or exponential curves-enabling precise, human-eye-optimized brightness control in the LP5812DYBHR.
How does the autonomous animation engine in the LP5812DYBHR reduce MCU workload?
The LP5812DYBHR's autonomous animation engine executes preconfigured lighting sequences-including fade, blink, and pattern cycles-without MCU intervention. Once programmed via I²C, it runs independently using its internal 6 MHz oscillator, freeing the host processor for other tasks while maintaining synchronized, low-latency LED effects in the LP5812DYBHR.
What is the purpose of the SYNC pin on the LP5812DYBHR?
The SYNC pin on the LP5812DYBHR enables frame-synchronized lighting across multiple devices. When connected together, it aligns the start of each display frame-critical for seamless multi-device animations in gaming peripherals or smart displays-while remaining optional (can be grounded) for single-device use in the LP5812DYBHR.
Can the LP5812DYBHR drive both RGB LEDs and discrete monochrome LEDs?
Yes, the LP5812DYBHR supports flexible configurations: TCM mode drives 4 RGB LEDs (12 total channels), direct mode drives 4 discrete LEDs (e.g., RGBW), and mix mode combines both. Its 4-output architecture with programmable scan order and drive mode selection makes it adaptable to diverse LED topologies in the LP5812DYBHR.
LP5812DYBHR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 9-BGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Linear
- Topology:
- Constant Current
- Internal Switch(s):
- Yes
- Number of Outputs:
- 4
- Voltage - Supply (Min):
- 500mV
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 0V ~ 5.5V
- Current - Output / Channel:
- 51mA
- Frequency:
- 500kHz, 1MHz
- Dimming:
- Analog, I2C, PWM
- Applications:
- General Purpose
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 9-DSBGA (1.43x1.43)
LP5812DYBHR FAQ
1.How can I place an order for LP5812DYBHR through Aetrix?
Please submit a Request for Quotation (RFQ) for LP5812DYBHR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LP5812DYBHR reliable?
The price and inventory of LP5812DYBHR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP5812DYBHR is usually 5 days.
3.What payment methods are accepted for LP5812DYBHR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP5812DYBHR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP5812DYBHR?
LP5812DYBHR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP5812DYBHR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LP5812DYBHR?
For technical support, including LP5812DYBHR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP5812DYBHR requirements.
6.How does Aetrix verify that LP5812DYBHR is sourced from the original manufacturer or authorized distributors?
All LP5812DYBHR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LP5812DYBHR meets industry standards.
7.What is the process for return or replacement of LP5812DYBHR?
All LP5812DYBHR units undergo pre-shipment inspection (PSI). If there is an issue with LP5812DYBHR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LP5812DYBHR part is unused and in its original packaging.
Return procedure for LP5812DYBHR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LP5812DYBHR Tags
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HV9910CLG-G
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CL2N8-G
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