My Inquiry
My Account
Texas Instruments LP5810CDSDR
- Part No.:
- LP5810CDSDR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
LP5810CDSDR.pdf
- Description:
- IC LINEAR I2C/PWM 51MA 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,518
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LP5810CDSDR from Texas Instruments is a 4-channel linear RGBW LED driver 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 wearable and IoT lighting systems requiring flicker-free, synchronized multi-device effects.
For engineers reviewing the LP5810CDSDR datasheet, LP5810CDSDR pinout, LP5810CDSDR application, or LP5810CDSDR equivalent, this page delivers verified electrical specs, WSON-8 package mapping, I²C timing compliance (up to 1 MHz), autonomous PWM phase-shift configuration, and real-world use cases in earbuds, smart speakers, and EV charger HMIs - all grounded in TI's SNVSCD0D production datasheet (Feb 2025).
Technical Context
The LP5810CDSDR implements a linear current-sink architecture with four independent 8-bit programmable constant-current outputs, each supporting analog dimming via global 1-bit Maximum Current (25.5/51 mA) and per-channel 8-bit Dot Current (0–100% of max). Its integrated 6 MHz oscillator enables inter-device synchronization via SYNC pin and powers an autonomous animation engine composed of three Animation Engine Units (AEUs) and two Animation Pause Units (APUs).
It supports dual-dimming modes: 8-bit linear/exponential PWM at 12 kHz or 24 kHz (configurable), plus individual PWM phase alignment (Forward/Middle/Backward) to reduce peak current ripple and ceramic capacitor audible noise. Fault detection includes LED open (90 mV / 180 mV threshold) and short detection with programmable voltage thresholds (32–68% of VCC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 5.5 V - supports direct connection to single-cell Li-ion or 3.3 V/5 V system rails without external LDO. |
| Output Current Range | 0.1 mA to 51 mA per channel - selectable via 1-bit MC (25.5/51 mA) and 8-bit DC (256-step scaling), enabling precise bin-matching across RGBW LEDs. |
| Current Accuracy | ±5% device-to-device & channel-to-channel - ensures uniform brightness across channels and units without factory calibration. |
| Headroom Voltage | 110 mV (typ.) at 25.5 mA - minimizes power loss and thermal rise in low-VF white/RGB LEDs. |
| I²C Interface | Up to 1 MHz Fast-mode Plus - allows high-speed register access and multi-device addressing (4 unique chip addresses on same bus). |
| Autonomous Engine | Configurable AEU/APU pattern with 16-time-scale slopers (0–8 s) - eliminates MCU real-time PWM updates for breathing, fade, and complex lighting sequences. |
| Thermal Shutdown | 150 °C (LED driver), 155 °C (boost section), 15 °C hysteresis - protects against sustained overloads in sealed enclosures. |
Pinout & Package
LP5810CDSDR uses the 8-pin WSON (DSD) package (3 mm × 3 mm, 0.65 mm pitch), thermally enhanced with exposed thermal pad connected to GND. Pin functions are validated per TI SNVSCD0D Figure 5-2 and Table 5-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power input | Supplies internal circuitry and current sinks; requires 22 µF bulk capacitor near pin for stability. |
| SYNC | I/O synchronization | Configurable as 6 MHz clock output or external sync input to align animation timing across multiple LP5810 devices. |
| SCL | I²C clock input | Accepts up to 1 MHz clock; supports standard/fast/fast-mode plus timing per Section 6.6. |
| SDA | I²C data I/O | Open-drain bidirectional interface; requires pull-up resistor (4.7 kΩ typical) to VCC or host logic rail. |
| OUT0–OUT3 | Constant-current sink outputs | Each drives LED cathode; supports 0.1–51 mA with <150 mV headroom; must float if unused. |
| GND | Ground reference | Primary signal and thermal return; must be connected to solid ground plane under thermal pad. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous animation engine | Three AEUs + two APUs per channel enable fully self-running breathing/fade/sequence effects without MCU intervention. |
| Programmable PWM phase shift | Per-channel Forward/Middle/Backward alignment reduces peak current demand by staggering LED turn-on timing. |
| Integrated de-ghosting | Hardware-level scan control prevents unintended LED activation during multiplexed driving in RGBW arrays. |
| LED open/short detection | Dual-threshold LOD (90/180 mV) and programmable LSD (32–68% VCC) provide fault visibility without external sensing. |
| Ultra-low standby current | 26 µA typical with CHIP_EN = 0 - retains register state while minimizing battery drain in always-on wearables. |
Applications
| Earbud Charging Case Indication | Smart Speaker RGB Ring |
|---|---|
Use Scenario: Status lighting on compact wireless earbud charging case with space-constrained PCB and coin-cell power budget. IC Role / Device Role / Timing Role: 4-channel RGBW driver managing white status LED + RGB indicators; autonomous engine runs battery-level animations without MCU wake-ups. Use Value: Extends coin-cell life via 26 µA standby and eliminates MCU firmware overhead for lighting sequences. |
Use Scenario: Circular RGB LED ring on voice-assistant speaker requiring smooth, synchronized color transitions and low-audio-noise operation. IC Role / Device Role / Timing Role: Linear current sink with 24 kHz PWM and phase-shifted outputs to suppress ceramic capacitor ringing and ensure silent operation. Use Value: Delivers flicker-free, human-eye-friendly illumination using exponential dimming curves and inter-device SYNC synchronization. |
| EV Charger HMI Panel | IoT Video Doorbell Indicator |
Use Scenario: Outdoor-rated EV charging station with ambient temperature range –40°C to +85°C and need for consistent LED brightness across temperature. IC Role / Device Role / Timing Role: Constant-current driver maintaining ±5% channel matching from –40°C to +85°C; thermal shutdown protects against enclosure heat buildup. Use Value: Ensures reliable visual feedback under industrial thermal stress without external current-sense resistors or calibration. |
Use Scenario: Battery-powered video doorbell requiring low-power notification lighting with tamper-resistant diagnostics. IC Role / Device Role / Timing Role: Autonomous LED controller detecting open/short faults and reporting via I²C; 0.4 mA active current extends battery life between motion-triggered alerts. Use Value: Reduces BOM count by integrating fault detection and eliminates need for discrete current-sense or protection ICs. |
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 |
|---|---|---|---|
| LP5811ADRRR | Boost architecture, DSBGA-12, higher VOUT capability (up to 28 V), no linear headroom constraint. | Better suited for high-VF LEDs (e.g., UV, high-brightness white) where VCC < VF; consumes more quiescent current (0.8 mA typical). | Select LP5811ADRRR only when driving LEDs with forward voltage exceeding VCC - LP5810CDSDR is optimal for VF ≤ VCC systems. |
| LP5812ADSDR | Same linear architecture and WSON-8 package, but 12-channel output; shares identical register map and animation engine. | Enables expansion to larger LED arrays without changing firmware or layout; occupies same footprint but adds 8 extra current sinks. | Choose LP5812ADSDR if future scalability to >4 LEDs is required; LP5810CDSDR remains ideal for cost- and size-optimized 4-LED designs. |
Compared with LP5811ADRRR, LP5810CDSDR offers lower power, smaller footprint, and superior efficiency for low-VF RGBW LEDs; versus LP5812ADSDR, it provides identical feature depth at reduced channel count and BOM cost - making it the precision-optimized choice for compact 4-LED indication systems.
Availability
LP5810CDSDR is available at Aetrix Electronics and suitable for portable wearables, smart audio interfaces, and industrial HMI applications requiring stable component supply, guaranteed long-term sourcing, and full traceability.
Supply support for LP5810CDSDR 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 ICs, with decades of expertise in precision LED control and low-power system solutions.
The LP5810CDSDR belongs to TI's LP58xx family of autonomous RGBW LED drivers, designed specifically for space-constrained, battery-sensitive consumer and industrial lighting applications demanding zero-MCU animation execution and ultra-low quiescent power.
FAQ
What is the maximum I²C clock frequency supported by LP5810CDSDR?
The LP5810CDSDR supports I²C Fast-mode Plus operation up to 1 MHz, as confirmed in Section 6.6 of the TI SNVSCD0D datasheet. This enables rapid register writes for dynamic animation updates and efficient multi-device configuration on shared buses - critical for real-time lighting control in smart speakers and wearables using the LP5810CDSDR.
Does LP5810CDSDR require external current-setting resistors?
No, the LP5810CDSDR uses fully integrated, digitally programmable current sinks - eliminating external resistors. Output current is set via 1-bit Maximum Current (25.5/51 mA) and 8-bit Dot Current (0–255) registers, enabling precise, temperature-stable LED drive without calibration or component variation concerns in the LP5810CDSDR design.
How does the autonomous animation engine in LP5810CDSDR reduce MCU load?
The LP5810CDSDR's autonomous engine executes preloaded AEU/APU patterns (including slopers with 0–8 s timing) independently after start_cmd issuance - freeing the host MCU from real-time PWM updates. This is especially valuable in resource-limited microcontrollers used with the LP5810CDSDR in earbuds or doorbells, where CPU cycles are reserved for audio or sensor tasks.
Can LP5810CDSDR drive LEDs with different forward voltages on each channel?
Yes - each of the four current sinks in the LP5810CDSDR operates independently with ultra-low 110 mV headroom at 25.5 mA, allowing mixed RGBW LEDs (e.g., 2.1 V red, 3.2 V blue, 2.8 V green, 3.0 V white) to be driven simultaneously from a common VCC rail without saturation or brightness loss - a key capability of the LP5810CDSDR.
What thermal management provisions does LP5810CDSDR include?
The LP5810CDSDR integrates dual thermal shutdown: 150 °C for the LED driver section and 155 °C for the boost converter, with 15 °C hysteresis. Its WSON-8 package features an exposed thermal pad tied to GND, achieving 22.9 °C/W junction-to-board resistance - enabling reliable operation in sealed enclosures like EV charger HMIs using the LP5810CDSDR.
LP5810CDSDR 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)
LP5810CDSDR FAQ
1.How can I place an order for LP5810CDSDR through Aetrix?
Please submit a Request for Quotation (RFQ) for LP5810CDSDR 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 LP5810CDSDR reliable?
The price and inventory of LP5810CDSDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP5810CDSDR is usually 5 days.
3.What payment methods are accepted for LP5810CDSDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP5810CDSDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP5810CDSDR?
LP5810CDSDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP5810CDSDR 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 LP5810CDSDR?
For technical support, including LP5810CDSDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP5810CDSDR requirements.
6.How does Aetrix verify that LP5810CDSDR is sourced from the original manufacturer or authorized distributors?
All LP5810CDSDR 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 LP5810CDSDR meets industry standards.
7.What is the process for return or replacement of LP5810CDSDR?
All LP5810CDSDR units undergo pre-shipment inspection (PSI). If there is an issue with LP5810CDSDR, 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 LP5810CDSDR part is unused and in its original packaging.
Return procedure for LP5810CDSDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LP5810CDSDR 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…
