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Texas Instruments LP5813BDRRR
- Part No.:
- LP5813BDRRR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
LP5813BDRRR.pdf
- Description:
- SYNCHRONOUS BOOST 4 X 3 MATRIX R
- Quantity:
- Payment:
- Shipping:
Inventory:3,173
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Product details
Overview
LP5813BDRRR 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 across its full 0.1mA–51mA per-sink range. It enables audible-noise-free 24kHz PWM dimming and integrated de-ghosting for compact wearable lighting systems.
For engineers reviewing the LP5813BDRRR datasheet, LP5813BDRRR pinout, LP5813BDRRR application, or LP5813BDRRR equivalent, this page provides verified technical context on its 12-channel RGBW drive capability, WSON-12 package integration, I²C-addressable multi-device synchronization (bit 4=0, bit 3=1), ultra-low 0.45mA active current, and autonomous animation engine operation - all confirmed for LP5813BDRRR specifically.
Technical Context
The LP5813BDRRR implements a quasi-constant-frequency synchronous boost converter with adaptive valley-current limiting (1.6A typical), operating at 1MHz above 1.5V VIN and scaling to 0.5MHz below 1V VIN. Its integrated 6MHz oscillator enables inter-device timing synchronization via SYNC pin.
It features dual-stage dimming: 8-bit analog dot-current control (0.1–51mA per sink) paired with 8-bit PWM generators supporting linear or exponential curves up to 24kHz. Each of its 12 outputs includes individual open/short detection and de-ghosting logic, with headroom as low as 110mV at 25.5mA.
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 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 RGBW LEDs without external regulators. |
| LED current range | 0.1mA to 51mA per sink - selectable via 1-bit MC (25.5/51mA) and 8-bit DC register for fine-grained brightness control. |
| Current accuracy | ±5% device-to-device, ±5% channel-to-channel - enables uniform color mixing across multi-LED arrays without per-unit calibration. |
| PWM frequency | Up to 24kHz - eliminates audible coil whine in earbuds, VR headsets, and smart speakers. |
| I²C interface | Up to 1MHz Fast-mode Plus - allows high-speed configuration of all 12 channels and animation registers with minimal MCU overhead. |
| Operating temperature | –40°C to +85°C - qualified for industrial HMI and automotive-accessory ambient environments. |
| Shutdown current | 0.1μA typical - extends battery life in always-on indication applications like E-tags and video doorbells. |
Pinout & Package
LP5813BDRRR is housed in a thermally enhanced 12-pin WSON package (3mm × 3mm, 0.65mm pitch), optimized for space-constrained portable PCBs. The exposed thermal pad (EP) must be soldered to a dedicated GND plane for thermal management and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Active-high digital control of boost converter; pulls internal circuitry into 0.1μA shutdown when low. |
| VIN | Main power input | Accepts 0.5–5.5V supply; requires 10μF ceramic capacitor placed adjacent to pin for stability. |
| SW | Boost switch node | Connects to inductor; carries high di/dt switching current - requires short, low-inductance trace routing. |
| VOUT | Boost output | Programmable 3–5.5V rail powering LED sinks; requires 22μF bulk capacitance for ripple suppression. |
| GND | Ground reference | Common return for power, logic, and analog sections; must connect directly to thermal pad and system ground plane. |
| SYNC | Multi-device sync I/O | Outputs 6MHz clock or accepts external sync signal to align PWM phases across multiple LP5813BDRRR devices. |
| SCL / SDA | I²C interface | Supports 1MHz Fast-mode Plus; level-shift tolerant for 1.8V/3.3V/5V MCU interfaces without external translators. |
| OUT0–OUT11 | Constant-current LED sinks | 12 independent outputs; each drives one LED anode via external cathode connection - no external current-setting resistors needed. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous animation engine | Offloads real-time LED pattern generation from host MCU - enables complex breathing, chasing, and strobing effects using only register configuration. |
| Integrated de-ghosting | Eliminates false illumination during multiplexed scanning by actively controlling cross-talk between adjacent LED channels. |
| True input-output disconnection | Physically isolates VIN from VOUT during shutdown - prevents backfeed and leakage into depleted battery rails. |
| Pass-through mode | Automatically bypasses boost stage when VIN > VOUT setting - improves efficiency in high-battery scenarios without software intervention. |
| Ultra-low headroom voltage | 110mV typical at 25.5mA - minimizes voltage overhead, enabling use with low-Vf red/green LEDs even at low VOUT settings. |
| I²C address select bits | Bit 4 = 0, Bit 3 = 1 - uniquely identifies LP5813BDRRR on shared bus; allows up to four LP5813 variants on same I²C lines. |
Applications
| Smart Wearable Indication | Gaming Peripheral Lighting |
|---|---|
Use Scenario: Real-time status feedback on wireless earbud charging cases and smartwatches. IC Role / Device Role / Timing Role: 12-channel RGBW driver with autonomous animation engine generating synchronized breathing and notification pulses. Use Value: Eliminates MCU polling overhead while maintaining sub-100ms response latency and battery-efficient 0.45mA active current draw. |
Use Scenario: Dynamic ambient lighting on RGB gaming mice and VR headset straps. IC Role / Device Role / Timing Role: Constant-current sink delivering precise 24kHz PWM dimming to 12 discrete LEDs with phase-shifted timing. Use Value: Enables flicker-free, noiseless illumination synchronized across multiple peripherals via 6MHz SYNC clock distribution. |
| IoT Visual Feedback | Industrial HMI Status |
Use Scenario: Low-power visual alerts on electronic shelf labels (E-tags) and video doorbells. IC Role / Device Role / Timing Role: Ultra-low-quiescent LED driver supporting 0.1mA minimum sink current and 0.1μA shutdown state. Use Value: Extends coin-cell or energy-harvesting battery life beyond 12 months while retaining full animation programmability. |
Use Scenario: Multi-color fault/status indication on EV charging stations and factory HMIs. IC Role / Device Role / Timing Role: Robust 12-channel driver with ±5% current matching and integrated open/short detection per output. Use Value: Ensures consistent LED brightness across temperature (-40°C to +85°C) and eliminates field failures from undetected LED faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RGBW LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LP5813CDRRR | I²C address bits differ (Bit 4=1, Bit 3=0); identical electrical specs and pinout. | Used when multiple LP5813 devices share one I²C bus - requires distinct addressing to avoid conflicts. | Select LP5813CDRRR only when configuring a second LP5813 on the same bus with non-overlapping address. |
| LP5811BDRRR | 4-channel version (vs. 12-channel); same WSON-12 package, identical I²C address bits (0/1), and core architecture. | Applicable where fewer LEDs are required - reduces BOM count and simplifies layout but halves channel count. | Choose LP5811BDRRR for cost-sensitive 4-LED designs; LP5813BDRRR is mandatory for 8–12 LED systems requiring single-chip integration. |
Compared with LP5813CDRRR and LP5811BDRRR, LP5813BDRRR uniquely combines 12-channel drive capability, fixed I²C address (0/1), and WSON-12 thermal performance - making it the only option for compact, high-channel-count RGBW systems needing deterministic bus addressing and minimal PCB area.
Availability
LP5813BDRRR is available at Aetrix Electronics and suitable for smart wearable electronics, gaming peripherals, IoT visual feedback systems, and industrial HMI applications requiring stable component supply, long-term lifecycle support, and guaranteed authentic sourcing.
Supply support for LP5813BDRRR 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.
LP5813BDRRR belongs to TI's LP58xx family of autonomous LED drivers, engineered specifically for battery-constrained portable devices requiring high channel density, ultra-low power, and intelligent lighting control without MCU intervention.
FAQ
What is the I²C address configuration for LP5813BDRRR?
The LP5813BDRRR uses I²C address bits Bit 4 = 0 and Bit 3 = 1, resulting in a unique slave address that avoids conflict when up to four LP5813 variants operate on the same I²C bus. This configuration is hardwired and cannot be changed in-circuit. All register access, animation programming, and current calibration for LP5813BDRRR depend on this fixed address mapping, ensuring deterministic communication in multi-device lighting systems.
Does LP5813BDRRR support true shutdown with input-output isolation?
Yes, LP5813BDRRR provides true disconnection between VIN and VOUT during shutdown: when EN is pulled low, internal power switches fully open, blocking current flow and reducing total supply current to 0.1μA typical. This prevents backfeed into depleted batteries and eliminates standby leakage - a critical feature for LP5813BDRRR deployments in coin-cell-powered E-tags and energy-harvesting sensors.
How does the autonomous animation engine in LP5813BDRRR reduce MCU load?
The LP5813BDRRR autonomous animation engine executes preloaded lighting sequences (e.g., breathing, chasing, strobing) independently after initial register setup - requiring zero runtime CPU cycles or timer interrupts. Once configured, LP5813BDRRR maintains synchronized 24kHz PWM output across all 12 channels using its internal 6MHz oscillator, freeing the host MCU for sensor processing or connectivity tasks in resource-limited wearables and IoT edge nodes.
What is the minimum headroom voltage required for LP5813BDRRR at full current?
At 25.5mA per sink, LP5813BDRRR exhibits a typical headroom voltage (VHR) of 110mV, rising to 210mV at 51mA. This ultra-low saturation voltage allows LP5813BDRRR to drive standard red/green LEDs even when VOUT is set as low as 3.0V - maximizing efficiency and minimizing heat dissipation in thermally constrained WSON-12 layouts used in LP5813BDRRR-based earbud and smartwatch designs.
Can LP5813BDRRR drive LEDs directly from a single-cell lithium battery?
Yes, LP5813BDRRR operates across 0.5V–5.5V input, enabling direct connection to single-cell Li-ion (2.7–4.2V nominal) or Li-polymer batteries - including operation down to 0.5V during deep discharge. Its 1.8V startup threshold and pass-through mode (when VIN > VOUT) ensure continuous LED functionality across the full battery curve without external LDOs or charge pumps, a key advantage of LP5813BDRRR in portable power architectures.
LP5813BDRRR 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)
LP5813BDRRR FAQ
1.How can I place an order for LP5813BDRRR through Aetrix?
Please submit a Request for Quotation (RFQ) for LP5813BDRRR 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 LP5813BDRRR reliable?
The price and inventory of LP5813BDRRR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP5813BDRRR is usually 5 days.
3.What payment methods are accepted for LP5813BDRRR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP5813BDRRR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP5813BDRRR?
LP5813BDRRR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP5813BDRRR 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 LP5813BDRRR?
For technical support, including LP5813BDRRR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP5813BDRRR requirements.
6.How does Aetrix verify that LP5813BDRRR is sourced from the original manufacturer or authorized distributors?
All LP5813BDRRR 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 LP5813BDRRR meets industry standards.
7.What is the process for return or replacement of LP5813BDRRR?
All LP5813BDRRR units undergo pre-shipment inspection (PSI). If there is an issue with LP5813BDRRR, 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 LP5813BDRRR part is unused and in its original packaging.
Return procedure for LP5813BDRRR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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