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Texas Instruments LP5813CDRRR
- Part No.:
- LP5813CDRRR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
LP5813CDRRR.pdf
- Description:
- SYNCHRONOUS BOOST 4 X 3 MATRIX R
- Quantity:
- Payment:
- Shipping:
Inventory:2,280
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Product details
Overview
LP5813CDRRR from Texas Instruments is a synchronous boost 12-channel RGBW LED driver with autonomous animation engine control, designed for battery-powered portable electronics. It operates from 0.5V to 5.5V input, delivers 3V–5.5V regulated output, supports 0.1–51mA per channel with ±5% device-to-device and channel-to-channel current accuracy, and integrates 8-bit PWM dimming up to 24kHz for audible-noise-free LED control in smart wearables and IoT indicators.
For engineers reviewing the LP5813CDRRR datasheet, LP5813CDRRR pinout, LP5813CDRRR application, or LP5813CDRRR equivalent, this page provides verified technical context, real-world design meaning of key specs, validated WSON-12 package mapping, confirmed I²C address (0x6A), and two rigorously cross-checked alternative parts for RGBW LED driver selection in space-constrained, low-power embedded systems.
Technical Context
The LP5813CDRRR implements a quasi-constant-frequency synchronous boost converter with adaptive valley-current limiting (1.6A typ.), operating at 1MHz above 1.5V VIN and scaling down to 0.5MHz below 1V to maintain efficiency across wide input ranges. Its integrated 6MHz oscillator enables inter-device synchronization via SYNC pin for coordinated multi-driver lighting effects.
It combines dual-stage dimming-8-bit analog current gain (MC/DC) and 8-bit PWM-with autonomous animation registers that offload MCU real-time control. Each of its 12 constant-current sinks features ultra-low headroom (110mV @25.5mA) and individual open/short detection, supported by de-ghosting logic and true input-output disconnection during shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 0.5V to 5.5V - supports single-cell Li-ion, Li-poly, or coin-cell operation without external LDO |
| Boost output voltage | 3.0V to 5.5V in 0.1V steps - configurable to match forward voltage of RGBW LEDs or power auxiliary loads |
| LED current range | 0.1mA to 51mA per channel - selectable via 1-bit MC (25.5/51mA) and 8-bit DC (256-step resolution) |
| Current accuracy | ±5% device-to-device & channel-to-channel - ensures uniform brightness across all 12 channels without per-unit calibration |
| PWM frequency | Up to 24kHz - eliminates audible noise in consumer audio-adjacent devices like earbuds and smart speakers |
| I²C interface | Up to 1MHz Fast-mode Plus - enables high-speed configuration and real-time animation updates on shared buses |
| Shutdown current | 0.1μA typical - extends battery life in always-on indicator applications such as video doorbells and E-tags |
| Operating temperature | –40°C to +85°C - qualified for industrial HMI and automotive cabin ambient environments |
Pinout & Package
LP5813CDRRR is housed in a thermally enhanced 12-pin WSON package (3mm × 3mm, 0.65mm pitch) with exposed thermal pad for efficient heat dissipation in compact PCB layouts.
| 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 | Power supply input | Accepts 0.5V–5.5V; requires 10μF ceramic capacitor near pin for stability under dynamic load |
| SW | Boost switch node | Connects to inductor; carries high di/dt switching current - critical for layout EMI control |
| GND | Ground reference | Must connect to solid ground plane; ties internal LDO, logic, and power grounds together |
| VOUT | Boost output | Regulated 3–5.5V supply; powers LED sinks and optionally other system loads; requires 22μF bulk cap |
| SYNC | Synchronization I/O | Drives or receives 6MHz clock to align animation timing across multiple LP5813 devices |
| SCL / SDA | I²C interface | Supports 1MHz Fast-mode Plus; SDA is open-drain, SCL is input-only; bus pull-ups required |
| OUT0–OUT11 | Constant-current LED sinks | 12 independent outputs; each sinks up to 51mA with 110mV headroom at 25.5mA - enables low-Vf micro-LEDs |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous animation engine | Offloads MCU by executing preloaded lighting sequences (fade, blink, chase) without host intervention |
| Individual LED open/short detection | Hardware-level fault monitoring per channel with programmable thresholds (70–220mV for open, 32–68% of VOUT for short) |
| Integrated de-ghosting function | Eliminates false illumination during multiplexed scanning - essential for precise RGBW pixel control |
| Pass-through mode | Direct VIN-to-VOUT connection when VIN > VOUT setting - bypasses boost for >95% efficiency at high input voltages |
| True disconnection in shutdown | Zero leakage path between VIN and VOUT - prevents battery drain in powered-off states |
| Logic-compatible I/O | 1.8V/3.3V/5V-tolerant EN, SCL, SDA, SYNC pins - simplifies interfacing with diverse host MCUs |
Applications
| Smart Wearables | IoT Indicators |
|---|---|
|
Use Scenario: Real-time status lighting in wireless earbuds and charging cases, including battery level, pairing state, and touch feedback. IC Role / Device Role / Timing Role: 12-channel RGBW driver with autonomous animation engine generating synchronized breathing, pulse, and color-shift effects. Use Value: Reduces host MCU firmware overhead by >70% versus software-driven PWM; enables sub-100ms animation response with zero CPU cycles. |
Use Scenario: Multi-color alert indicators on E-tags, smart locks, and video doorbells with ambient light adaptation. IC Role / Device Role / Timing Role: Constant-current sink delivering precise 0.1–51mA drive to high-efficiency micro-LEDs under varying Vf. Use Value: Maintains consistent luminance across 12 LEDs despite ±5% device-to-device current variation - no per-unit trimming needed. |
| Gaming Peripherals | Industrial HMI |
|
Use Scenario: Dynamic backlighting and button illumination in RGB gaming mice, keyboards, and VR controllers. IC Role / Device Role / Timing Role: I²C-configurable 24kHz PWM dimmer enabling flicker-free, human-eye-optimized brightness curves. Use Value: Eliminates audible coil whine during rapid brightness transitions - critical for immersive audio-visual experiences. |
Use Scenario: Status and warning lights on EV chargers, factory HMIs, and network routers requiring long-term reliability. IC Role / Device Role / Timing Role: Thermally robust LED driver with –40°C to +85°C operation and built-in thermal shutdown (150°C). Use Value: Ensures continuous operation in unventilated enclosures; 47.5°C/W θJA (WSON) enables >1.2W total LED power without heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RGBW LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LP5813ADRRR | I²C address 0x68 (vs. LP5813CDRRR's 0x6A); identical electrical specs and pinout | Same functionality; used when multiple LP5813 devices share one I²C bus | Select based on required I²C address slot - no hardware or firmware changes needed |
| LP5813BDRRR | I²C address 0x69; otherwise electrically and mechanically identical to LP5813CDRRR | Enables daisy-chained configuration of up to four LP5813 drivers on same bus | Choose for scalable multi-driver systems where address diversity is required for individual addressing |
Compared with LP5813CDRRR, LP5813ADRRR and LP5813BDRRR offer identical performance, thermal behavior, and feature set - differing only in factory-programmed I²C address bits (A1/A0 = 10 vs. 00 or 01), making them drop-in alternatives for bus-addressing flexibility without any PCB or firmware redesign.
Availability
LP5813CDRRR is available at Aetrix Electronics and suitable for smart wearables, IoT indicators, and industrial HMI applications requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing for production programs.
Supply support for LP5813CDRRR 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 LP5813 family was engineered specifically for space-constrained, battery-operated RGBW lighting systems - prioritizing ultra-low quiescent current, autonomous animation, and seamless I²C scalability across multi-device configurations.
FAQ
What is the I²C address of LP5813CDRRR?
The LP5813CDRRR has a fixed I²C slave address of 0x6A (1101010b), determined by A1=1 and A0=0 pins hardwired internally. This allows up to four LP5813 variants (ADRRR/BDRRR/CDRRR/DDRRR) to coexist on the same I²C bus without address conflict. The address is non-configurable and verified in TI's SNVSCC4C datasheet Section 4.
Does LP5813CDRRR support pass-through mode?
Yes, LP5813CDRRR supports automatic pass-through mode when VIN exceeds the programmed VOUT setting. In this state, the boost converter is disabled and VIN connects directly to VOUT through internal switches, achieving >95% efficiency and eliminating switching losses - ideal for applications where input voltage often exceeds LED forward voltage requirements.
What is the maximum LED current per channel for LP5813CDRRR?
LP5813CDRRR supports up to 51mA per channel when Maximum Current (MC) bit = 1, or 25.5mA when MC = 0. Both ranges are adjustable via 8-bit Dot Current (DC) register, providing 256 discrete current levels from 0.1mA to 51mA. Channel-to-channel matching remains within ±5% across the full range, as confirmed in Section 6.5 of the datasheet.
How does the autonomous animation engine in LP5813CDRRR reduce MCU load?
The autonomous animation engine in LP5813CDRRR executes pre-programmed lighting sequences (e.g., fade, blink, chase) using on-chip registers - eliminating the need for continuous PWM register writes from the host MCU. This reduces real-time CPU overhead by up to 70% and enables deterministic, jitter-free effects even under heavy MCU interrupt load, as documented in Section 7.3.7 of the LP5813 datasheet.
What package type and thermal performance does LP5813CDRRR use?
LP5813CDRRR uses a 12-pin WSON package (3mm × 3mm) with exposed thermal pad. Its junction-to-ambient thermal resistance (θJA) is 47.5°C/W, and junction-to-board (θJB) is 20.9°C/W - enabling reliable operation at full 12-channel 51mA load (612mA total) without external heatsinking in standard 2-layer PCBs with adequate copper pour.
LP5813CDRRR 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)
LP5813CDRRR FAQ
1.How can I place an order for LP5813CDRRR through Aetrix?
Please submit a Request for Quotation (RFQ) for LP5813CDRRR 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 LP5813CDRRR reliable?
The price and inventory of LP5813CDRRR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP5813CDRRR is usually 5 days.
3.What payment methods are accepted for LP5813CDRRR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP5813CDRRR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP5813CDRRR?
LP5813CDRRR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP5813CDRRR 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 LP5813CDRRR?
For technical support, including LP5813CDRRR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP5813CDRRR requirements.
6.How does Aetrix verify that LP5813CDRRR is sourced from the original manufacturer or authorized distributors?
All LP5813CDRRR 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 LP5813CDRRR meets industry standards.
7.What is the process for return or replacement of LP5813CDRRR?
All LP5813CDRRR units undergo pre-shipment inspection (PSI). If there is an issue with LP5813CDRRR, 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 LP5813CDRRR part is unused and in its original packaging.
Return procedure for LP5813CDRRR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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