TLC6C5724QPWPRQ1 - 24-Channel 50mA LED Driver, AEC-Q100 | TI
MPN: TLC6C5724QPWPRQ1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.16 | $41.60 |
| 100 | $3.55 | $355.00 |
| 500 | $3.05 | $1,525.00 |
| 1,000 | $2.72 | $2,720.00 |
TLC6C5724QPWPRQ1 Overview
A constant-current LED driver is a type of power management IC that regulates current (rather than voltage) through LED strings. Because LED brightness and color depend directly on forward current, constant-current drivers eliminate the brightness variation that plagues simple resistive ballast designs. Within the power management hierarchy, the TLC6C5724-Q1 belongs to the linear LED driver family with integrated PWM dimming and dot correction, positioned as a system-level solution for matrix and string LED lighting control.
Key differentiating features include the per-channel 7-bit dot correction with two selectable current ranges, which lets a single design compensate for LED forward-voltage binning across red, green, and blue dies; group-level 8-bit intensity control that simplifies color calibration; and a selectable 12-bit PWM engine supporting dimming ratios suited to automotive interior and exterior lighting. The full-diagnostics subsystem detects open-circuit and short-circuit LED faults, output shorts to GND, and provides fault reporting for functional-safety-oriented designs.
Architecturally, the TLC6C5724-Q1 combines a constant-current sink per channel with an external resistor that sets the full-scale 50 mA maximum output current, a serial data interface for configuration, and an on-chip diagnostic engine that scans LED health during operation. Grayscale and dot-correction data are latched internally, allowing PWM dimming to continue glitch-free while new data shifts in, an important behavior for seamless brightness transitions.
Typical applications include automotive RGB ambient interior lighting, rear combination lamps and turn indicators, architectural and accent lighting, and RGB status or backlighting in industrial displays. Its AEC-Q100 qualification and full diagnostics make it especially suitable for safety-relevant exterior lighting where fault reporting is required.
When designing, set the external current-setting resistor so the 50 mA absolute maximum per-channel current is respected across temperature, and budget thermal dissipation for the worst-case channel currents in the exposed-pad HTSSOP package with an adequate copper pour.
This page synthesizes verified distributor data, drop-in same-family alternatives, AEO-optimized FAQs, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for TLC6C5724QPWPRQ1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TLC6C5724QPWPRQ1 (same form factor and footprint) β differing in Diagnostics, Dimming Method, Package.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TLC6C5724QDAPRQ1
β Drop-Inπ Reference alternative (not in catalog)
TLC6C5712QPWPRQ1
β Drop-Inβ In Stock
$1.62 / Unit
View Datasheet βTLC6C5712QDAPRQ1
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
TLC6C5724QPWPRQ1 Maximum Ratings & Electrical Characteristics
| Number of Channels | 24 |
| Maximum Output Current per Channel | 50 mA (set by external resistor) |
| Dot Correction | 7-bit, two ranges per output |
| Group Intensity Control | 8-bit per color group |
| PWM (Grayscale) Resolution | 12-bit, 10-bit, or 8-bit selectable |
| Dimming Method | PWM dimming |
| Diagnostics | Full diagnostics (open/short LED detection) |
| Output Type | Constant-current sink, linear |
| Qualification | AEC-Q100 automotive grade |
| Package | 38-HTSSOP with exposed pad (PWP) |
| Mounting Type | Surface Mount |
| Color Support | RGB (3 color groups) |
TLC6C5724QPWPRQ1 38-htssop with exposed pad (pwp) Pin Configuration Guide
Pin configuration for TLC6C5724QPWPRQ1 (38-htssop with exposed pad (pwp) package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for TLC6C5724QPWPRQ1.
Refer to the datasheet for full pin configuration.
Typical Applications
TLC6C5724QPWPRQ1 is suitable for 6 applications: Automotive RGB Ambient Interior Lighting, Automotive Rear Combination Lamps, Architectural and Accent RGB Lighting, Industrial Display RGB Backlighting, RGB Status Indication in Networking Equipment, Automotive Exterior Accent and Signature Lighting.
Automotive RGB Ambient Interior Lighting
The TLC6C5724QPWPRQ1 fits automotive ambient interior lighting because its 24 constant-current channels drive eight complete RGB clusters from a single IC, and the selectable 12-bit PWM grayscale (4096 steps) delivers the smooth, flicker-free low-brightness dimming that premium cabin lighting demands. The per-channel 7-bit dot correction with two ranges compensates for LED brightness and color binning across red, green, and blue dies, keeping multi-zone color uniform. In a typical circuit the driver sits between the vehicle 12 V rail (via a pre-regulator) and the LED strings, with one external resistor setting the 50 mA full-scale current. Because the AEC-Q100 qualification covers the automotive temperature environment and full diagnostics report open/short faults to the body controller, the part supports both comfort lighting and its fault-reporting requirements without extra monitoring circuitry.
Recommended
Automotive Rear Combination Lamps
Rear combination lamps (tail, stop, turn, and reverse functions) benefit from the TLC6C5724QPWPRQ1's combination of 50 mA per-channel capability, AEC-Q100 qualification, and full LED diagnostics. Rear lamps are legally required to provide lamp-outage indication; the device's on-chip diagnostic engine detects open LED faults, LED shorts, and shorts to ground and reports them over the serial interface, replacing discrete monitoring circuitry. The 12-bit PWM dimming supports stop/tail brightness modulation (stop lamps typically run at full current while tail mode dims to a legal ratio), and dot correction evens out brightness across multi-LED light-guide segments so no hot spots appear on the lens. The 38-pin HTSSOP exposed-pad package dissipates worst-case multi-channel power when soldered to a PCB copper area, making it practical for compact lamp driver boards inside the housing.
Recommended
Architectural and Accent RGB Lighting
In architectural RGB wash and accent lighting, the TLC6C5724QPWPRQ1's 24 channels drive eight RGB nodes per IC, and 12-bit PWM grayscale achieves the deep dimming ratio needed for scene-setting without visible stepping at low light levels. The 8-bit group intensity control per color group allows a single white-point calibration to be applied to all red, green, and blue channels respectively, while per-channel 7-bit dot correction removes fixture-to-fixture color variation caused by LED binning. Full diagnostics report failed LEDs in large installations so maintenance can be scheduled proactively. Because the device operates as a linear constant-current sink, LED strings connect between a DC supply rail and the driver outputs, with the external resistor setting 50 mA full-scale current. Note the linear topology dissipates excess voltage as heat, so keep supply headroom modest and size the exposed-pad copper for the total channel current.
Recommended
Industrial Display RGB Backlighting
Industrial HMI and display backlighting uses the TLC6C5724QPWPRQ1 to drive RGB LED arrays with precise color control: 12-bit PWM provides 4096 brightness levels for adapting panel luminance to factory lighting conditions, while 7-bit dot correction plus 8-bit group intensity guarantee uniform color across the backlight over lifetime. Diagnostics detect failed or shorted backlight LEDs and report faults to the host, supporting predictive maintenance in unattended equipment. The 50 mA per-channel current supports high-brightness backlight strings, and the exposed-pad HTSSOP package manages dissipation when mounted over a ground pour. Because the driver is linear, efficiency depends on the voltage headroom between the LED rail and LED forward voltage; using a switching pre-regulator to set the rail just above the string voltage keeps losses low. Serial configuration allows brightness, correction, and diagnostic registers to be updated during operation without visual glitches.
Recommended
RGB Status Indication in Networking Equipment
Servers, switches, and routers use dense RGB status LEDs, and the TLC6C5724QPWPRQ1 consolidates eight RGB indicators per IC with per-channel dot correction so every status LED presents consistent color and brightness on the bezel. The 8- or 10-bit PWM modes shorten the grayscale cycle for snappy blink patterns, while 12-bit mode supports breathing or gradient status animations. Diagnostics identify failed front-panel LEDs during production test and in the field, improving quality reporting. The 50 mA capability also drives high-brightness indicators visible through smoke-tinted front panels. Configuring brightness and colors requires only a serial interface from the board management controller, and the AEC-Q100 qualification adds margin for equipment operating at elevated ambient temperatures. Multiple devices can be cascaded on shared control lines to scale channel count across large chassis front panels without additional MCU pins.
Recommended
Automotive Exterior Accent and Signature Lighting
Modern vehicles use RGB signature light bars and exterior accent lighting for brand identity, and the TLC6C5724QPWPRQ1 addresses this with 24 constant-current channels, 12-bit PWM for smooth animated sequences, and per-channel dot correction that keeps long light guides visually uniform even as LEDs age at different rates. Full diagnostics meet exterior lighting fault-detection expectations by reporting open LEDs, LED shorts, and shorts to ground to the lighting ECU, enabling degraded-mode operation per regulatory requirements. The device's 50 mA maximum per channel supports the brighter dies used in daylight-visible signatures. Located in the lamp housing, the exposed-pad HTSSOP package needs thermal design attention because exterior enclosures see both high ambient temperatures and solar loading; use adequate PCB copper and follow TI's thermal layout guidance for the PWP package. AEC-Q100 qualification covers the automotive reliability environment.
Recommended
Recommended Products Summary
Engineering reference data for TLC6C5724QPWPRQ1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLC6C5724QDAPRQ1 | TLC6C5712QPWPRQ1 | TLC6C5712QDAPRQ1 |
|---|---|---|---|---|
| Package | 38-HTSSOP (PWP) with exposed pad | 38-HTSSOP - same footprint | 38-HTSSOP - same footprint | 38-HTSSOP - same footprint |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Channels | 24 | 24 | 12 | 12 |
| Max Current per Channel | 50 mA | 50 mA | 50 mA | 50 mA |
| Full LED Diagnostics | Yes | Yes | Yes | Yes |
| AEC-Q100 Qualified | Yes | Yes | Yes | Yes |
Key Differentiators
- 24 channels per IC (8 full RGB clusters) (vs TLC6C5712QPWPRQ1)
- Full LED diagnostics with fault reporting (vs TLC6C5712QPWPRQ1)
- AEC-Q100 automotive qualification (vs Generic non-automotive 24-channel drivers)
Design Notes
The TLC6C5724QPWPRQ1 is a linear constant-current driver: total power dissipation is approximately the sum over channels of (Vsupply_headroom - LED_forward_voltage) x Ichannel. Estimated: at 8 RGB clusters with 20 mA per channel (480 mA total) and 2 V of headroom, dissipation is about 0.96 W. The exposed pad of the 38-HTSSOP (PWP) package must be soldered to a solid ground copper pour; follow TI's PowerPAD layout guidance for the PWP package and verify junction temperature against the datasheet limit at maximum ambient.
Set the full-scale output current with the external IREF resistor so that no channel can exceed the 50 mA absolute maximum across tolerance and temperature. Use the two-range 7-bit dot correction to place each channel in an appropriate current range rather than relying solely on deep dot-correction values, which reduces effective resolution. Keep the LED supply rail only a few hundred millivolts above the highest LED string forward voltage to balance linearity and efficiency.
Place the current-setting resistor close to the IREF pin and use a low-TC, 1% or better component for output-current accuracy. Route the serial control lines away from the high di/dt LED channels; a ground plane under the driver helps contain switching noise from the PWM edges. Add local decoupling on the supply pins per the TI datasheet recommendation, and star-connect the exposed pad to the main ground to prevent diagnostic threshold errors from ground bounce.
Do not ignore the diagnostic configuration: thresholds for open/short detection depend on the chosen current range and LED type, and misconfigured thresholds cause nuisance fault flags on deep-dimmed channels. Also confirm PWM resolution choice early - switching from 12-bit to 8-bit changes the grayscale refresh timing budget of the serial interface in cascaded designs.
Compliance Information
AEC-Q100 automotive qualification confirmed by TI product page and datasheet title (Automotive 24-channel LED driver). Other compliance statuses not stated in provided data - verify on TI.com quality pages.
