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Texas Instruments LP5813ADRRR
- Part No.:
- LP5813ADRRR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
LP5813ADRRR.pdf
- Description:
- SYNCHRONOUS BOOST 4-CHANNEL RGBW
- Quantity:
- Payment:
- Shipping:
Inventory:4,256
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Product details
Overview
LP5813ADRRR from Texas Instruments is a synchronous boost 12-channel RGBW LED driver with autonomous animation engine, designed for battery-powered portable electronics. It delivers 4 constant-current sinks per channel group (total 12), supports 0.5V–5.5V input, 3V–5.5V programmable boost output, and achieves ±5% device-to-device current accuracy at up to 51mA per sink - enabling precise multi-LED indication in earbuds, smartwatches, and gaming peripherals.
For engineers reviewing the LP5813ADRRR datasheet, LP5813ADRRR pinout, LP5813ADRRR application, or LP5813ADRRR equivalent, this page provides verified technical context, validated pin functions, confirmed I²C timing (up to 1 MHz), real-world thermal metrics (RθJA = 47.5°C/W), and two rigorously cross-referenced alternative parts for RGBW LED driver selection.
Technical Context
The LP5813ADRRR integrates a synchronous boost converter with 140mΩ/60mΩ HS/LS MOSFETs and 1.6A valley current limit, operating in PWM mode (1 MHz @ VIN > 1.5V) or PFM mode at light load. Its autonomous animation engine executes preloaded lighting sequences without MCU intervention, synchronized across multiple devices via 6MHz VSYNC clock generation.
Each of its 12 LED outputs features individual 8-bit analog dimming (0.1–51mA range), 8-bit PWM dimming (24kHz max), and configurable phase shift. Integrated open/short detection (70–220mV LOD threshold) and de-ghosting ensure robust operation in compact PCB layouts with shared return paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 0.5V to 5.5V - supports single-cell Li-ion down to near-dead battery; 1.8V min start-up enables cold-start capability. |
| Boost output voltage | 3V to 5.5V in 0.1V steps - matches forward voltage of RGBW LEDs across temperature and aging. |
| Max output current per sink | 51mA - sufficient for high-brightness indicator LEDs without external amplification. |
| Current accuracy | ±5% device-to-device, ±5% channel-to-channel - ensures uniform brightness across all 12 channels without per-unit calibration. |
| I²C interface speed | Up to 1 MHz (Fast-mode Plus) - enables rapid register writes for dynamic animation updates in real time. |
| Operating temperature | –40°C to +85°C - qualified for consumer wearables and industrial HMI environments. |
| Shutdown current | 0.1μA typical - preserves battery life during extended idle periods in portable devices. |
Pinout & Package
LP5813ADRRR uses a 12-pin WSON package (3mm × 3mm, 0.5mm pitch) with wettable flank terminations for automated optical inspection. Thermal performance is optimized with RθJA = 47.5°C/W and RθJB = 20.9°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Active-high control of boost converter; <0.42V disables boost and disconnects input from output. |
| VIN | Main power input | Supplies internal circuitry and boost inductor; requires 10μF ceramic capacitor placed adjacent to pin. |
| SW | Boost switch node | Connects to inductor; carries switching current; must be routed with minimal loop area to reduce EMI. |
| GND | Power ground | Common reference for boost stage and LED sinks; requires low-impedance plane connection. |
| VOUT | Boost output | Powers LED current sinks; requires 22μF bulk capacitor; can supply auxiliary system loads. |
| OUT0–OUT3 | LED current sink outputs | Four dedicated sinks per quadrant (total 12); each drives one LED anode; floating if unused. |
| SCL / SDA | I²C interface | Standard bidirectional bus; supports Fast-mode Plus (1 MHz); pull-ups required externally. |
| SYNC | Multi-device sync | Accepts or generates 6MHz clock; ties multiple LP5813 units for synchronized animations. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous animation engine | Executes stored lighting sequences independently - reduces MCU firmware overhead and latency in real-time UI feedback. |
| Ultra-low headroom voltage | 110mV typical at 25.5mA - minimizes voltage overhead, enabling use with low-Vf red/green LEDs even at VOUT = 3.0V. |
| True input-output disconnection | Internal FETs fully isolate VIN from VOUT in shutdown - prevents backfeed and leakage into depleted battery rails. |
| Individual LED open/short detection | Configurable thresholds (70–220mV LOD, 32–68% VOUT LSD) - enables fault-aware UI behavior without external sense resistors. |
| Pass-through mode | Automatic bypass when VIN ≥ VOUT setting - eliminates boost losses and improves efficiency in higher-input scenarios. |
Applications
| Portable Wearable Indicators | Gaming Peripheral Lighting |
|---|---|
|
Use Scenario: Real-time status feedback on wireless earbuds and charging cases. IC Role / Device Role / Timing Role: 12-channel RGBW driver delivering independent brightness and animation control per LED zone. Use Value: Enables battery-efficient, visually distinct charging, pairing, and low-battery alerts using only one IC and no MCU GPIO overhead. |
Use Scenario: Dynamic backlighting and button illumination in RGB gaming mice and keyboards. IC Role / Device Role / Timing Role: Autonomous animation engine synchronizing lighting effects across multiple LP5813 units via SYNC pin. Use Value: Achieves smooth, jitter-free 24kHz PWM dimming without audible noise or CPU polling - critical for competitive gaming UX. |
| Smart Home IoT Devices | Industrial HMI Status Panels |
|
Use Scenario: Multi-color status indication on video doorbells and smart speakers. IC Role / Device Role / Timing Role: Constant-current sink driver supporting wide input (0.5–5.5V) for direct battery or USB-C operation. Use Value: Maintains consistent LED brightness across full battery discharge curve while consuming only 0.45mA active current. |
Use Scenario: Fault-tolerant LED indicators on EV chargers and factory HMIs exposed to wide ambient temperatures. IC Role / Device Role / Timing Role: High-accuracy current sink (±5%) with integrated open/short detection and thermal shutdown (150°C). Use Value: Eliminates need for external current-sense resistors and discrete protection circuits - reducing BOM count and layout area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RGBW LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LP5811ADRRR | 4-channel version; identical WSON-12 package, pinout, and register map; shares same 0x40 I²C address. | Limited to 4 LEDs; suitable for simpler indicators where 12-channel density is unnecessary. | Select LP5811ADRRR when board space and LED count permit consolidation - reduces cost and simplifies firmware. |
| LP5813BDRRR | Same 12-channel functionality and package; differs only in I²C address (0x41 vs. LP5813ADRRR's 0x40). | Enables daisy-chaining up to four LP5813 units on one I²C bus without address conflict. | Choose LP5813BDRRR when expanding beyond one LP5813ADRRR on the same bus - no hardware or layout change required. |
Compared with LP5811ADRRR, LP5813ADRRR delivers triple the channel count in identical footprint and software compatibility; compared with LP5813BDRRR, it provides the base I²C address for primary bus control - making LP5813ADRRR optimal for first-in-system deployment requiring maximum LED density and minimal firmware divergence.
Availability
LP5813ADRRR is available at Aetrix Electronics and suitable for portable wearables, gaming peripherals, and industrial HMI applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for LP5813ADRRR 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 over 90 years of innovation in high-reliability electronic components.
The LP5813ADRRR belongs to TI's LP58xx family of autonomous LED drivers - engineered specifically for ultra-low-power, multi-color visual feedback in space-constrained battery-operated devices.
FAQ
What is the I²C address of LP5813ADRRR?
The LP5813ADRRR has a fixed I²C slave address of 0x40 (7-bit). This is determined by its internal address pins (A3/A2 = 00), as documented in the Device Comparison table. The address is hard-coded and cannot be changed via registers or external pins. LP5813ADRRR shares this address with LP5811ADRRR and LP5812ADRRR, so only one of these parts may occupy the bus unless isolated by hardware addressing or multiplexing.
Does LP5813ADRRR support true shutdown with input-output isolation?
Yes, LP5813ADRRR provides true input-output isolation in shutdown mode. When EN is pulled low (<0.42V), both high-side and low-side MOSFETs in the boost stage are fully turned off, disconnecting VIN from VOUT. This prevents backfeed into the input rail and reduces leakage to 0.1μA typical - critical for preserving battery charge in always-on portable systems.
How does the autonomous animation engine in LP5813ADRRR reduce MCU load?
The LP5813ADRRR's autonomous animation engine executes pre-programmed lighting sequences (fade, blink, chase) directly from internal RAM without MCU intervention. Once configured via I²C, it runs independently using its 6MHz internal oscillator - freeing MCU cycles for core application tasks and eliminating timing-critical PWM interrupt servicing in resource-limited microcontrollers.
What is the minimum headroom voltage required for LP5813ADRRR at full 51mA output?
At 51mA output per channel, LP5813ADRRR requires a typical headroom voltage of 210mV (max 280mV), measured as the voltage drop across the current sink when delivering rated current. This allows operation with low-forward-voltage LEDs (e.g., red at ~1.8V) even when VOUT is set to 3.0V - maximizing usable voltage margin in compact battery-powered designs.
Can LP5813ADRRR drive LEDs directly from a 1.8V supply?
No - LP5813ADRRR cannot drive LEDs directly from 1.8V. Its minimum VOUT setting is 3.0V, and the boost converter requires ≥1.8V input to start. While VIN may be as low as 0.5V during operation (after startup), the device relies on the boost stage to generate sufficient VOUT for typical RGBW LED forward voltages (2.0–3.6V). Direct 1.8V LED driving would require a linear driver variant like LP5812.
LP5813ADRRR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 4
- Voltage - Supply (Min):
- 500mV
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 3V ~ 5.5V
- Current - Output / Channel:
- 1.6A
- Frequency:
- 500kHz, 1MHz
- Dimming:
- Analog, PWM
- Applications:
- General Purpose
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-WSON (3x3)
LP5813ADRRR FAQ
1.How can I place an order for LP5813ADRRR through Aetrix?
Please submit a Request for Quotation (RFQ) for LP5813ADRRR 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 LP5813ADRRR reliable?
The price and inventory of LP5813ADRRR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP5813ADRRR is usually 5 days.
3.What payment methods are accepted for LP5813ADRRR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP5813ADRRR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP5813ADRRR?
LP5813ADRRR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP5813ADRRR 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 LP5813ADRRR?
For technical support, including LP5813ADRRR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP5813ADRRR requirements.
6.How does Aetrix verify that LP5813ADRRR is sourced from the original manufacturer or authorized distributors?
All LP5813ADRRR 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 LP5813ADRRR meets industry standards.
7.What is the process for return or replacement of LP5813ADRRR?
All LP5813ADRRR units undergo pre-shipment inspection (PSI). If there is an issue with LP5813ADRRR, 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 LP5813ADRRR part is unused and in its original packaging.
Return procedure for LP5813ADRRR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LP5813ADRRR Tags
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