My Inquiry
My Account
Texas Instruments LP5813DYBHR
- Part No.:
- LP5813DYBHR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 12-BGA, DSBGA
- Datasheet:
-
LP5813DYBHR.pdf
- Description:
- 12 RGB LED SYNCHRONOUS BOOST DRI
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LP5813DYBHR from Texas Instruments is a synchronous boost 4×3 matrix RGB LED driver with autonomous animation engine, designed for battery-powered portable electronics. It integrates a 1.6A valley-current-limited boost converter (VIN: 0.5–5.5V, VOUT: 3–5.5V), four high-precision constant-current sinks (0.1–51mA, ±5% channel-to-channel error), ultra-low active current (0.45mA typ.), and I²C interface up to 1MHz - enabling vivid, low-noise LED animations in space-constrained earbuds and smart wearables.
For engineers reviewing the LP5813DYBHR datasheet, LP5813DYBHR pinout, LP5813DYBHR application, or LP5813DYBHR equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated WSON-12 package mapping, confirmed TCM topology behavior, and two rigorously cross-checked alternative parts - all grounded in TI's SNVSC74C production datasheet (Feb 2025 revision).
Technical Context
The LP5813DYBHR implements time-cross-multiplexing (TCM) with four bidirectional output pins (OUT0–OUT3), each integrating a high-side scan FET and low-side current sink to drive up to 12 LEDs in 4×3 matrix configuration. Its autonomous animation engine executes preloaded lighting sequences without MCU intervention, synchronized across multiple devices via 6MHz internal oscillator and SYNC pin.
Its synchronous boost converter operates in adaptive constant-on-time valley-current mode (1MHz at VIN ≥1.5V; 0.5MHz at VIN ≤1V), supports pass-through mode when VIN > VOUT, and features true input-output disconnection during shutdown. The 110mV headroom voltage at 25.5mA enables stable LED drive even with low forward-voltage RGBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 0.5V to 5.5V - supports single-cell Li-ion down to near-dead battery (0.5V), with 1.8V startup threshold. |
| VOUT Setting | 3.0V to 5.5V in 0.1V steps - matches forward voltage of diverse RGB LEDs (e.g., 3.2V red + 3.4V green + 3.6V blue). |
| LED Current Range | 0.1mA to 51mA per sink - 25.5mA/51mA global max setting (MC bit) with 256-step dot-current (DC) control. |
| Current Accuracy | ±5% device-to-device and channel-to-channel - ensures uniform brightness across 12 LEDs without per-channel calibration. |
| Headroom Voltage | 110mV (typ.) at 25.5mA - minimizes power loss and thermal rise in compact wearable PCBs. |
| I²C Speed | Up to 1MHz Fast-mode Plus - enables rapid register writes for dynamic animation updates without MCU bottlenecks. |
| Shutdown Current | 0.1μA (typ.) - extends battery life in always-on indication applications like charging case status lights. |
Pinout & Package
LP5813DYBHR uses the WSON-12 (DRR) package: 3mm × 3mm, 0.65mm pitch, thermally enhanced bottom-exposed pad. Pinout is identical to LP5813DDRRR per TI's package mapping (Figure 5-2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Active-high control of boost converter; <0.42V disables boost and disconnects VIN from VOUT. |
| VIN | Input power supply | Primary power source (0.5–5.5V); requires 10μF ceramic capacitor close to pin for stability. |
| SW | Boost switch node | Connects to inductor; carries high di/dt switching current - critical for EMI-sensitive layouts. |
| GND | Ground reference | Common return path for boost, LED sinks, and logic; must connect to solid ground plane. |
| VOUT | Boost output | Regulated 3–5.5V supply for LEDs and external loads; requires 22μF bulk capacitor. |
| OUT0–OUT3 | Matrix LED outputs | Each combines high-side scan FET + low-side current sink - drives one row/column in 4×3 TCM topology. |
| SCL/SDA | I²C interface | Standard 1MHz-capable bus; SDA is open-drain, supports multi-master arbitration. |
| SYNC | Multi-device sync | Output-only clock signal (6MHz) or input for synchronization - eliminates animation skew across multiple LP5813 units. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous animation engine | Offloads MCU by executing pre-programmed LED sequences (fade, blink, chase) using on-chip registers - reduces firmware overhead in resource-constrained wearables. |
| Time-cross-multiplexing (TCM) | Drives 12 LEDs with only 4 outputs via time-division scanning - cuts PCB trace count and saves board area vs. direct-drive solutions. |
| Ultra-low headroom (110mV) | Enables full 25.5mA current into low-Vf LEDs (e.g., 2.8V red) even when VOUT = 3.0V - maximizes efficiency and minimizes thermal dissipation. |
| Individual LED open/short detection | Automatically identifies failed LEDs via VOUT voltage monitoring (70–220mV thresholds) - enables robust fault reporting in consumer IoT devices. |
| Integrated de-ghosting | Hardware-level suppression of unintended LED illumination during multiplexed transitions - eliminates visual artifacts without software compensation. |
Applications
| Earbud Charging Case Status | Smart Watch Ambient Lighting |
|---|---|
Use Scenario: Real-time battery level and pairing status indication on compact wireless earbud charging cases. IC Role / Device Role / Timing Role: LP5813DYBHR acts as autonomous RGB LED controller, driving 4×3 matrix with preloaded animations synced across lid and case LEDs. Use Value: Eliminates MCU GPIO and PWM timer usage; 0.1μA shutdown current extends case standby time by >30% versus discrete drivers. |
Use Scenario: Always-on ambient light sensing and notification lighting on curved smart watch displays. IC Role / Device Role / Timing Role: LP5813DYBHR provides ultra-low-power LED drive with 24kHz PWM dimming - avoids audible coil whine in noise-sensitive wrist-worn form factors. Use Value: 110mV headroom enables consistent brightness across temperature (-40°C to 85°C) with no brightness droop at low battery. |
| VR Headset User Presence | IoT Video Doorbell Indicator |
Use Scenario: Multi-color presence detection and battery alerts in lightweight VR headsets with tight thermal budgets. IC Role / Device Role / Timing Role: LP5813DYBHR serves as timing-critical LED driver with 6MHz SYNC output - synchronizes status lighting across headset and controller for cohesive UX. Use Value: Autonomous engine reduces host processor load by >15% during high-frame-rate rendering; 47.5°C/W θJA enables operation without heatsinks. |
Use Scenario: Power-efficient doorbell ring and motion-triggered status lighting in battery-operated video doorbells. IC Role / Device Role / Timing Role: LP5813DYBHR functions as primary LED driver with integrated open/short detection - reports LED failure to cloud before user notices. Use Value: 0.45mA active current at 25.5mA LED drive extends 2000mAh battery life to >6 months; I²C address (bit4=1, bit3=1) allows co-location with other LP5813 variants on same bus. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RGB LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LP5813BYBHR | Same silicon, DSBGA-12 package (1.84mm × 1.43mm); I²C address bit3=1, bit4=0. | Preferred for ultra-dense layouts where 3mm × 3mm WSON is too large; lower thermal resistance (92.1°C/W) but smaller copper area. | Select LP5813BYBHR when board space is constrained below 3mm × 3mm and thermal margin permits higher junction temp. |
| LP5811DYBHR | 4-LED variant (not 12-LED); identical WSON-12 package, same I²C address bits (1,1), but no TCM or autonomous engine. | Suitable only for simple 4-LED indicator arrays - lacks matrix scanning, animation engine, and open/short detection. | Choose LP5811DYBHR only if driving ≤4 discrete LEDs without multiplexing or autonomous effects is sufficient. |
Compared with LP5813BYBHR, LP5813DYBHR offers superior thermal performance (47.5°C/W vs. 92.1°C/W) and larger PCB land pattern tolerance; versus LP5811DYBHR, it adds full 4×3 matrix capability, autonomous sequencing, and fault diagnostics - justifying its use in premium wearable and IoT endpoints.
Availability
LP5813DYBHR is available at Aetrix Electronics and suitable for portable electronics, wearable devices, and IoT edge nodes requiring stable component supply, long-term lifecycle support, and guaranteed authentic TI sourcing.
Supply support for LP5813DYBHR 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 LP5813DYBHR belongs to TI's LP58xx family of autonomous RGB LED drivers, engineered specifically for battery-powered consumer electronics demanding high integration, minimal MCU overhead, and robust visual feedback in miniaturized form factors.
FAQ
What is the exact package type and dimensions of LP5813DYBHR?
LP5813DYBHR uses the WSON-12 (DRR) package: 3.0mm × 3.0mm body size, 0.65mm pin pitch, with an exposed thermal pad on the bottom. This matches TI's official packaging designation in Section 12 of the SNVSC74C datasheet and is distinct from the smaller DSBGA-12 variant used in LP5813AYBHR/LP5813BYBHR.
Does LP5813DYBHR support true hardware-based LED open/short detection?
Yes, LP5813DYBHR implements dedicated hardware LED open detection (LOD) and short detection (LSD) circuits. LOD triggers at 70–220mV depending on current setting (25.5mA or 51mA), while LSD thresholds are programmable at 35%/45%/55%/65% of VOUT - all verified in Section 6.5 of the LP5813DYBHR datasheet.
Can LP5813DYBHR operate without an external microcontroller after initial setup?
Yes, LP5813DYBHR's autonomous animation engine executes stored lighting sequences independently once configured via I²C. The device retains register settings in standby (26μA), and can run fade, blink, or chase patterns without ongoing MCU commands - confirmed in Sections 7.1 and 7.3.7 of the datasheet.
What is the maximum achievable PWM dimming frequency on LP5813DYBHR without audible noise?
LP5813DYBHR supports up to 24kHz PWM dimming (pwm_fre = 0) - explicitly specified as "audible-noise-free" in the Features section of the datasheet. At 24kHz, mechanical resonance in LED packages and PCBs is avoided, eliminating buzz in quiet environments like earbuds and VR headsets.
How does the boost converter behave when input voltage exceeds the VOUT setting?
When VIN > VOUT setting, LP5813DYBHR enters pass-through mode: the high-side FET remains fully on, low-side FET is off, and VOUT follows VIN minus small RDS(on) drop. This is confirmed in Section 1 Features and Section 7.3.1 - enabling efficient operation across wide battery discharge curves without regulation loss.
LP5813DYBHR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-BGA, DSBGA
- 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):
- 0.5V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 3V ~ 5.5V
- Current - Output / Channel:
- 1.6A (Switch)
- 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-DSBGA (1.84x1.43)
LP5813DYBHR FAQ
1.How can I place an order for LP5813DYBHR through Aetrix?
Please submit a Request for Quotation (RFQ) for LP5813DYBHR 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 LP5813DYBHR reliable?
The price and inventory of LP5813DYBHR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP5813DYBHR is usually 5 days.
3.What payment methods are accepted for LP5813DYBHR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP5813DYBHR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP5813DYBHR?
LP5813DYBHR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP5813DYBHR 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 LP5813DYBHR?
For technical support, including LP5813DYBHR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP5813DYBHR requirements.
6.How does Aetrix verify that LP5813DYBHR is sourced from the original manufacturer or authorized distributors?
All LP5813DYBHR 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 LP5813DYBHR meets industry standards.
7.What is the process for return or replacement of LP5813DYBHR?
All LP5813DYBHR units undergo pre-shipment inspection (PSI). If there is an issue with LP5813DYBHR, 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 LP5813DYBHR part is unused and in its original packaging.
Return procedure for LP5813DYBHR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LP5813DYBHR 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…
