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Texas Instruments LP5813DDRRR
- Part No.:
- LP5813DDRRR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
LP5813DDRRR.pdf
- Description:
- SYNCHRONOUS BOOST 4 X 3 MATRIX R
- Quantity:
- Payment:
- Shipping:
Inventory:2,410
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Product details
Overview
LP5813DDRRR from Texas Instruments is a synchronous boost 12-channel RGBW LED driver with autonomous animation engine control, operating from 0.5V to 5.5V input and delivering 3V–5.5V regulated output. It integrates 140mΩ/60mΩ synchronous MOSFETs, supports 0.1mA–51mA per channel with ±5% device-to-device and channel-to-channel current accuracy, and enables audible-noise-free 24kHz PWM dimming for portable wearable and IoT lighting systems.
For engineers reviewing the LP5813DDRRR datasheet, LP5813DDRRR pinout, LP5813DDRRR application, or LP5813DDRRR equivalent, this page delivers verified specifications including boost converter efficiency (95% at 4.2V→5.0V/300mA), ultra-low shutdown current (0.1μA), 1MHz I²C interface, autonomous animation engine timing synchronization, and WSON-12 package thermal metrics (RθJA = 47.5°C/W).
Technical Context
The LP5813DDRRR implements a quasi-constant-frequency synchronous boost converter with adaptive valley-current-mode control, switching at 1MHz above 1.5V VIN and scaling to 0.5MHz below 1V VIN to maintain efficiency across wide battery discharge ranges. Its integrated 6MHz oscillator enables inter-device lighting effect synchronization via the SYNC pin.
It combines dual-stage dimming-8-bit analog dot current (DC) control plus 8-bit linear/exponential PWM-with autonomous animation registers that offload MCU real-time brightness sequencing. LED open/short detection thresholds (70–220mV) and de-ghosting logic are implemented per channel without external components.
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 minimum for startup ensures reliable cold-boot in wearables. |
| Boost output voltage | 3.0V to 5.5V in 0.1V steps - configurable to match forward voltage of diverse RGBW LED strings without external feedback resistors. |
| LED channel count | 12 constant-current sinks - enables full-color status lighting on routers, EV chargers, and multi-zone smart speakers with one IC. |
| Current accuracy | ±5% device-to-device & channel-to-channel - ensures uniform brightness across all 12 LEDs under varying temperature and supply conditions. |
| PWM dimming frequency | Up to 24kHz - eliminates audible coil whine in consumer audio peripherals and VR headsets during dynamic lighting effects. |
| I²C interface speed | 1MHz Fast-mode Plus - allows rapid configuration of animation sequences and real-time brightness updates without bus contention. |
| Shutdown current | 0.1μA typical - extends battery life in always-on earbud charging cases and e-tag displays by minimizing quiescent drain. |
Pinout & Package
LP5813DDRRR uses a 12-pin WSON package (3mm × 3mm, 0.5mm pitch) with exposed thermal pad for enhanced power dissipation in space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Active-high control of boost converter; pulls internal circuitry into 0.1μA shutdown when low, enabling system-level power gating. |
| VIN | Main power input | Accepts 0.5V–5.5V battery or rail input; requires 10μF ceramic capacitor close to pin for stability during high-current LED pulsing. |
| SW | Boost switch node | Connects to inductor; carries high di/dt switching current - layout must minimize loop area to reduce EMI and voltage spikes. |
| VOUT | Boost output | Regulated 3V–5.5V supply for LED drivers and optional external loads; requires 22μF low-ESR output capacitor. |
| OUT0–OUT11 | Constant-current LED sinks | 12 independent current outputs; each supports 0.1–51mA with 110mV headroom at 25.5mA - enables low-Vf micro-LEDs and standard 20mA indicators. |
| SCL/SDA | I²C interface | 1MHz Fast-mode Plus bidirectional bus - supports daisy-chaining up to four LP5813 variants (via A3/A4 address bits) on shared lines. |
| SYNC | Multi-device sync | Input/output for 6MHz clock distribution - synchronizes PWM phase shift and animation timing across multiple LP5813DDRRR devices for coherent lighting arrays. |
| GND | Power ground | Must connect to solid ground plane; ties internal LDO, boost controller, and LED sink references - critical for current accuracy and thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous animation engine | Offloads MCU by executing preloaded lighting sequences (fade, breathe, chase) using on-chip registers - reduces firmware complexity and CPU load in resource-constrained wearables. |
| Pass-through mode | Automatically bypasses boost when VIN > VOUT setting - eliminates conversion loss and improves system efficiency during USB-powered operation (e.g., smart speaker dock mode). |
| True input-output disconnection | Internal FETs fully isolate VIN from VOUT during shutdown - prevents backfeed into depleted batteries and meets safety requirements in medical and industrial HMI. |
| Integrated LED fault detection | Detects open-circuit (70–220mV threshold) and short-circuit (32–68% of VOUT) per channel - enables fail-safe status reporting without external sense resistors or ADC monitoring. |
| De-ghosting function | Hardware-based cross-talk suppression between adjacent LED channels - eliminates false illumination during fast PWM transitions in dense PCB layouts. |
Applications
| Portable Wearable Lighting | Smart Audio Peripherals |
|---|---|
|
Use Scenario: RGBW status lighting in true wireless stereo (TWS) earbuds and charging cases. IC Role / Device Role / Timing Role: 12-channel LED driver providing synchronized battery-level indication, pairing status, and touch feedback with autonomous animation engine. Use Value: Eliminates need for discrete LED drivers and timing controllers; 0.1μA shutdown current extends case battery life by >30% versus legacy solutions. |
Use Scenario: Dynamic ambient lighting on smart speakers and gaming headsets. IC Role / Device Role / Timing Role: Synchronous boost LED driver powering multi-zone RGBW LEDs with 24kHz PWM to prevent audible noise during bass-heavy audio playback. Use Value: 95% boost efficiency at 4.2V→5.0V/300mA minimizes thermal rise inside sealed enclosures; SYNC pin enables coordinated light patterns across paired devices. |
| IoT Edge Devices | Industrial Human-Machine Interface |
|
Use Scenario: Visual alerts and status encoding on video doorbells and e-tags. IC Role / Device Role / Timing Role: Ultra-low-power LED driver supporting intermittent wake-up lighting with data retention in standby (26μA). Use Value: 1.8V startup and 0.5V operating minimum enable reliable operation from coin cells or energy-harvested sources over full temperature range (–40°C to +85°C). |
Use Scenario: Multi-color status and fault indication on EV charging stations and factory HMIs. IC Role / Device Role / Timing Role: 12-channel constant-current sink with ±5% accuracy ensuring consistent LED brightness across environmental stress and long-term aging. Use Value: Integrated open/short detection and thermal shutdown (150°C) provide self-monitoring capability - reduces BOM cost and validation effort for safety-critical deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-channel LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LP5813ADRRR | I²C address bit A4=0, A3=0 - distinct slave address on same bus | Same functionality and pinout; used when multiple LP5813 variants share I²C bus | Select when building multi-device lighting systems requiring individual addressing without bus arbitration overhead. |
| LP5813BDRRR | I²C address bit A4=0, A3=1 - unique address for parallel configuration | Identical electrical and thermal specs; differs only in hardware-configurable I²C address | Choose for systems needing three or more LP5813 devices on one I²C bus - enables scalable lighting control without GPIO expansion. |
Compared with LP5813DDRRR, LP5813ADRRR and LP5813BDRRR share identical boost architecture, 12-channel current sinks, autonomous animation engine, and WSON-12 packaging - differing solely in factory-programmed I²C address bits (A4/A3 = 1/1 vs. 0/0 or 0/1), making them direct drop-in alternatives for bus-addressing flexibility.
Availability
LP5813DDRRR is available at Aetrix Electronics and suitable for portable wearables, smart audio peripherals, IoT edge devices, and industrial HMI applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LP5813DDRRR 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 and embedded processing technologies, with decades of expertise in power management and LED driver innovation.
The LP5813DDRRR belongs to TI's LP58xx family of autonomous LED drivers designed specifically for battery-powered RGBW lighting in space- and power-constrained applications - emphasizing ultra-low quiescent current, integrated fault protection, and reduced MCU firmware burden.
FAQ
What is the I²C address configuration for LP5813DDRRR?
The LP5813DDRRR has fixed I²C slave address bits A4=1 and A3=1, resulting in a base address of 0x64 (7-bit) when A2/A1/A0 are grounded. This enables up to four LP5813 variants (A4/A3 = 00, 01, 10, 11) to coexist on the same I²C bus without software address remapping. The LP5813DDRRR address is hardwired and cannot be altered via register writes or external pins.
Does LP5813DDRRR support both analog and PWM dimming simultaneously?
Yes, LP5813DDRRR supports concurrent analog and PWM dimming: the 1-bit Maximum Current (MC) and 8-bit Dot Current (DC) settings define the current scale per channel, while independent 8-bit PWM generators modulate that current at up to 24kHz. This dual-stage control enables fine-grained brightness resolution (256×256 steps) and human-eye-optimized exponential curves without MCU intervention.
How does the autonomous animation engine in LP5813DDRRR reduce MCU load?
The LP5813DDRRR autonomous animation engine executes preconfigured lighting sequences (fade, blink, chase) using on-chip timing registers and internal 6MHz oscillator - eliminating the need for continuous PWM register updates from the host MCU. Once programmed, it runs independently, freeing the MCU for sensor processing or communication tasks in wearables and IoT endpoints.
What thermal performance can be expected from LP5813DDRRR in a 3mm × 3mm WSON package?
LP5813DDRRR in the WSON-12 package achieves RθJA = 47.5°C/W (junction-to-ambient) and RθJB = 20.9°C/W (junction-to-board) under JEDEC JESD51-7 conditions. With proper PCB copper pour under the exposed thermal pad, it sustains full 12-channel operation at 25.5mA per channel up to +85°C ambient - validated by TI's thermal characterization data in SNVSCC4C.
Can LP5813DDRRR drive LEDs directly from a 3.3V supply without boost conversion?
Yes - LP5813DDRRR enters pass-through mode when VIN exceeds the programmed VOUT setting, routing input power directly to the LED driver blocks. At 3.3V input with VOUT configured to 3.0V, the boost converter disables and the device operates with <0.5V dropout, delivering up to 51mA per channel with only 210mV headroom - ideal for efficient mid-brightness operation in USB-powered systems.
LP5813DDRRR 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:
- 1
- Voltage - Supply (Min):
- 500mV
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 3V ~ 5.5V
- Current - Output / Channel:
- 50mA
- Frequency:
- 500kHz, 1MHz
- Dimming:
- Analog, PWM
- Applications:
- General Purpose
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-WSON (3x3)
LP5813DDRRR FAQ
1.How can I place an order for LP5813DDRRR through Aetrix?
Please submit a Request for Quotation (RFQ) for LP5813DDRRR 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 LP5813DDRRR reliable?
The price and inventory of LP5813DDRRR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP5813DDRRR is usually 5 days.
3.What payment methods are accepted for LP5813DDRRR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP5813DDRRR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP5813DDRRR?
LP5813DDRRR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP5813DDRRR 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 LP5813DDRRR?
For technical support, including LP5813DDRRR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP5813DDRRR requirements.
6.How does Aetrix verify that LP5813DDRRR is sourced from the original manufacturer or authorized distributors?
All LP5813DDRRR 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 LP5813DDRRR meets industry standards.
7.What is the process for return or replacement of LP5813DDRRR?
All LP5813DDRRR units undergo pre-shipment inspection (PSI). If there is an issue with LP5813DDRRR, 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 LP5813DDRRR part is unused and in its original packaging.
Return procedure for LP5813DDRRR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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