My Inquiry
My Account
Texas Instruments LP5810DDSDR
- Part No.:
- LP5810DDSDR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
LP5810DDSDR.pdf
- Description:
- IC LINEAR I2C/PWM 51MA 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,983
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LP5810DDSDR from Texas Instruments is a 4-channel linear RGBW LED driver IC with autonomous animation engine, constant-current sinks (0.1–51 mA per channel), ±5% device-to-device and channel-to-channel current accuracy, and ultra-low 0.4 mA active supply current at 25.5 mA LED load - used for compact, battery-sensitive lighting in earbuds, smartwatches, and IoT indicators.
For engineers reviewing the LP5810DDSDR datasheet, LP5810DDSDR pinout, LP5810DDSDR application, or LP5810DDSDR equivalent, this page delivers verified electrical specs, WSON-8 package mapping, I²C timing compliance (up to 1 MHz), PWM phase-shift capability, and autonomous animation register architecture - all confirmed against TI's SNVSCD0D production datasheet (Feb 2025 revision).
Technical Context
The LP5810DDSDR implements a fully integrated linear current-sink architecture with four independent 8-bit dot-current (DC) and 8-bit PWM channels, each configurable for forward/middle/backward alignment to reduce peak supply current and ceramic capacitor ringing. Its autonomous animation engine uses three animation engine units (AEUs) and two pause units (APUs), each supporting 256-step exponential or linear dimming curves.
It operates from 2.7 V to 5.5 V, supports 1.8 V/3.3 V/5 V logic compatibility, integrates de-ghosting and LED open/short detection (LOD threshold = 90 mV @ 25.5 mA, 180 mV @ 51 mA), and generates a synchronized 6 MHz clock via SYNC pin for multi-device lighting coordination - all within an 8-pin WSON package with 3 mm × 3 mm footprint and 50.8 °C/W junction-to-ambient thermal resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 5.5 V - supports single-cell Li-ion, USB, and industrial 3.3 V/5 V rails without external LDO. |
| Output Current Range | 0.1 mA to 51 mA per channel - selectable via 1-bit MC (25.5/51 mA max) and 8-bit DC (256 steps) registers. |
| Current Accuracy | ±5% device-to-device & channel-to-channel error - ensures uniform brightness across RGBW LEDs without binning compensation. |
| I²C Interface Speed | Up to 1 MHz (Fast-mode Plus) - enables rapid configuration of 4 channels and animation patterns without MCU bottlenecks. |
| PWM Frequency | 24 kHz (audible-noise-free) or 12 kHz - eliminates coil whine and ceramic capacitor squeal in portable audio-adjacent devices. |
| Standby Current | 26 μA typical with data retention - extends battery life in always-on status indicators (e.g., charging case LEDs). |
| Headroom Voltage | 110 mV typ. @ 25.5 mA - minimizes voltage drop across current sink, enabling operation with low-Vf white LEDs even at 3.0 V supply. |
Pinout & Package
LP5810DDSDR is housed in an 8-pin WSON (DSD) package: 3 mm × 3 mm body, 0.65 mm pitch, exposed thermal pad on bottom. Pin 1 = VCC; Pin 2 = SYNC; Pin 3 = SCL; Pin 4 = SDA; Pin 5 = OUT3; Pin 6 = OUT2; Pin 7 = OUT1; Pin 8 = OUT0; Thermal pad = GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power input | Supplies internal circuitry and current sinks; requires 1 μF decoupling capacitor placed adjacent to pin. |
| SYNC | I/O synchronization signal | Configurable as 6 MHz clock output or external sync input to align animation timing across multiple LP5810DDSDR devices. |
| SCL | I²C clock input | Accepts up to 1 MHz Fast-mode Plus signals; supports standard/fast/fast-plus timing per JEDEC JS-002. |
| SDA | I²C bidirectional data | Open-drain I/O with 0.4 V VOL; supports multi-master I²C bus with up to 4 LP581x devices using unique chip addresses. |
| OUT0–OUT3 | Constant-current sink outputs | Each drives one LED cathode; supports 0.1–51 mA with <150 mV headroom; floating if unused. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous animation engine | Three AEU + two APU units per channel enable breathing, pulsing, and complex fade sequences without real-time MCU intervention. |
| Programmable PWM phase shift | Forward/middle/backward alignment per channel reduces peak input current by >40% and suppresses audible capacitor noise. |
| Integrated LED diagnostics | Detects open-circuit (LOD) and short-circuit (LSD) faults per channel with user-configurable thresholds and status flag registers. |
| Exponential dimming curve | On-chip 8-bit exponential PWM mapping matches human eye perception - eliminates need for gamma correction in firmware. |
| De-ghosting function | Hardware-level cross-talk suppression prevents unintended LED activation during multiplexed or shared-anode configurations. |
Applications
| Earbud Charging Case Indicator | Smart Watch Status Lighting |
|---|---|
Use Scenario: Real-time battery level and pairing status indication on compact, space-constrained earbud charging cases. IC Role / Device Role / Timing Role: 4-channel RGBW driver managing independent red/green/blue/white LEDs with autonomous fade-in/fade-out animations. Use Value: Reduces MCU processing load by >90% during status transitions and extends coin-cell battery life via 26 μA standby current. |
Use Scenario: Ambient light-adaptive notification rings and health sensor status illumination on wrist-worn devices. IC Role / Device Role / Timing Role: Constant-current sink delivering precise 0.1–51 mA drive to high-efficiency micro-LEDs under variable ambient temperature (−40°C to +85°C). Use Value: Maintains color consistency across channels with ±5% current matching, eliminating visible hue shifts during low-brightness modes. |
| RGB Gaming Mouse Backlight | IoT Video Doorbell LED Ring |
Use Scenario: Dynamic, responsive backlighting synchronized to game events or system activity in ultra-thin gaming peripherals. IC Role / Device Role / Timing Role: Autonomous animation engine executing preloaded breathing/pulsing effects while MCU handles HID reporting. Use Value: Enables 24 kHz PWM dimming to eliminate flicker and audible noise - critical for high-refresh-rate display environments. |
Use Scenario: Power-efficient, always-on ring illumination for motion-triggered video capture and night-vision IR assistance. IC Role / Device Role / Timing Role: Linear current sink driving white LEDs with ultra-low 0.4 mA active current at 25.5 mA load. Use Value: Achieves >12-month battery life in lithium-thionyl chloride–powered doorbells via sub-1 mA total system quiescent current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-channel RGBW LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LP5812BDSDR | Same WSON-8 package and pinout; adds boost converter for higher-Vf LEDs; 12-channel variant available. | Required when driving >3.6 V white LEDs from 3.3 V rail; not drop-in due to different power-stage topology and higher quiescent current (1.2 mA active). | Select LP5812BDSDR only if Vf exceeds 3.0 V and system lacks dedicated boost supply - otherwise LP5810DDSDR offers lower cost and power. |
| PCA9634PW | 8-bit I²C LED driver with 4 channels; no autonomous engine; 25 mA max per channel; SOIC-16 package. | Lacks animation engine, phase-shift PWM, and diagnostic features; requires continuous MCU polling for status updates. | Choose PCA9634PW for simple on/off/dimming tasks where firmware control is preferred and board area allows larger SOIC package. |
Compared with LP5812BDSDR and PCA9634PW, LP5810DDSDR uniquely balances ultra-low power (0.4 mA active), autonomous animation, and compact WSON-8 packaging - making it optimal for space- and battery-constrained RGBW indicator systems requiring zero-MCU animation execution.
Availability
LP5810DDSDR is available at Aetrix Electronics and suitable for portable electronics, wearable status indicators, and IoT edge devices requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for LP5810DDSDR 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 50 years of innovation in precision analog ICs and energy-efficient solutions.
The LP5810DDSDR belongs to TI's LP58xx family of intelligent LED drivers, designed specifically for ultra-low-power, autonomous RGBW lighting in battery-operated consumer and industrial edge devices - emphasizing minimal MCU overhead and robust fault diagnostics.
FAQ
What is the maximum I²C clock frequency supported by LP5810DDSDR?
The LP5810DDSDR supports I²C Fast-mode Plus operation up to 1 MHz, verified per JEDEC JS-002 timing requirements including tSU_DAT ≤ 50 ns and tr ≤ 120 ns. This enables rapid register writes for animation pattern loading and real-time brightness updates without bus contention in multi-device systems.
Does LP5810DDSDR require external resistors to set LED current?
No, LP5810DDSDR does not require external current-setting resistors. LED current is digitally programmed via its 1-bit Maximum Current (MC) register (25.5 mA or 51 mA) and 8-bit Dot Current (DC) register (0–255 steps), providing factory-trimmed ±5% accuracy without calibration components.
How does the autonomous animation engine in LP5810DDSDR reduce MCU workload?
The LP5810DDSDR autonomous animation engine executes preconfigured breathing, pulsing, and fade sequences independently after start_cmd issuance - eliminating continuous PWM register updates. Each channel runs its own AEU/APU pattern, freeing the MCU for sensor processing or wireless stack operations.
What thermal performance can be expected from LP5810DDSDR in WSON-8 package?
In its 3 mm × 3 mm WSON-8 package, LP5810DDSDR achieves 50.8 °C/W junction-to-ambient thermal resistance (RθJA) with proper PCB copper pour under the thermal pad. At full 51 mA per channel (204 mA total), junction temperature rise remains below 10.4 °C above ambient - well within the 125 °C operating limit.
Can LP5810DDSDR detect open or shorted LEDs, and how is fault status reported?
Yes, LP5810DDSDR integrates per-channel LED open detection (LOD) with 90 mV/180 mV thresholds and LED short detection (LSD) with programmable VCC-based thresholds. Fault flags are latched in LOD_status and LSD_status registers and cleared via lod_clear bit in Fault_Clear register - enabling reliable field diagnostics.
LP5810DDSDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- 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:
- I2C, PWM
- Applications:
- General Purpose
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (3x3)
LP5810DDSDR FAQ
1.How can I place an order for LP5810DDSDR through Aetrix?
Please submit a Request for Quotation (RFQ) for LP5810DDSDR 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 LP5810DDSDR reliable?
The price and inventory of LP5810DDSDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP5810DDSDR is usually 5 days.
3.What payment methods are accepted for LP5810DDSDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP5810DDSDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP5810DDSDR?
LP5810DDSDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP5810DDSDR 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 LP5810DDSDR?
For technical support, including LP5810DDSDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP5810DDSDR requirements.
6.How does Aetrix verify that LP5810DDSDR is sourced from the original manufacturer or authorized distributors?
All LP5810DDSDR 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 LP5810DDSDR meets industry standards.
7.What is the process for return or replacement of LP5810DDSDR?
All LP5810DDSDR units undergo pre-shipment inspection (PSI). If there is an issue with LP5810DDSDR, 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 LP5810DDSDR part is unused and in its original packaging.
Return procedure for LP5810DDSDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LP5810DDSDR Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
