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Texas Instruments TLC59283RGER
- Part No.:
- TLC59283RGER
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TLC59283RGER.pdf
- Description:
- IC LED DRIVER LINEAR 45MA 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:9,386
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Product details
Overview
TLC59283RGER from Texas Instruments is a 16-channel constant-current LED sink driver with pre-charge FET, designed for multiplexed LED displays. It delivers up to 45mA per channel (VCC > 3.6V), supports 3–5.5V logic supply, and features ±3% max channel-to-channel current accuracy. Its integrated pre-charge FET reduces ghosting in dynamic LED matrix applications such as video signage.
For engineers reviewing the TLC59283RGER datasheet, TLC59283RGER pinout, TLC59283RGER application, or TLC59283RGER equivalent, key selection criteria include its 35MHz serial data rate, grouped switching delay for EMI reduction, BLANK pulse width of 50ns, and QFN-24 (RGE) package compatibility with high-density PCB layouts.
Technical Context
The TLC59283RGER implements a 16-bit shift register with LAT-triggered latching to control individual OUT0–OUT15 sink outputs. Its constant-current value is set by a single external resistor connected to IREF, enabling precise, uniform LED brightness across all channels without per-channel trimming.
Each output integrates a dedicated pre-charge FET activated during BLANK high to discharge parasitic capacitance before common-line switching - directly addressing ghosting in time-multiplexed LED arrays. Grouped output switching (nine groups with ~1ns inter-group delay) suppresses simultaneous switching noise and peak supply current transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 3V to 5.5V - supports direct interface with 3.3V or 5V microcontrollers without level-shifting. |
| Max Sink Current | 45mA per channel (VCC > 3.6V) - enables driving high-brightness LEDs at full intensity in 1/16 scan-rate displays. |
| Current Accuracy | ±3% max channel-to-channel - ensures consistent luminance across all 16 outputs without calibration. |
| Data Rate | 35MHz SCLK - allows full 16-bit update in ≤457ns, supporting high-refresh-rate video display timing. |
| BLANK Pulse Width | 50ns minimum - provides precise blanking control to eliminate visible artifacts during data latch transitions. |
| Operating Temp | –40°C to +85°C - qualified for outdoor message boards and industrial LED signage environments. |
| LED Voltage Support | Up to 10V on OUT pins - accommodates multi-LED strings (e.g., 3× white LEDs @ 3.2V each) without external boost. |
Pinout & Package
Package: RGE (QFN-24, 4mm × 4mm, 0.5mm pitch) with exposed thermal pad (must be soldered to GND plane for thermal performance).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT0–OUT15 | Constant-current sink outputs | 16 individually controllable low-side drivers; each capable of sinking up to 45mA with <±3% matching. |
| SIN | Serial data input | Schmitt-triggered CMOS input accepting 3.3V/5V logic; LSB-first serial data shifted in on SCLK rising edge. |
| SCLK | Serial clock input | 35MHz max clock; synchronizes bit-shift into internal 16-bit register; Schmitt-triggered for noise immunity. |
| LAT | Data latch enable | Level-sensitive (high-active) latch; transfers shift-register contents to output latch on rising edge or while held high. |
| BLANK | Global output disable | Active-high signal forcing all OUTn off and pre-charge FETs on; internally pulled up to VCC (500kΩ typical). |
| SOUT | Serial data output | MSB-out daisy-chain output; enables cascading multiple TLC59283RGER devices with single controller interface. |
| IREF | Current reference node | Connect external resistor to GND to set all 16 channel currents; internal 1.208V reference enables accurate scaling. |
| VCC / GND | Power supply rails | VCC powers logic and pre-charge circuitry; GND reference for IREF and output sinks; thermal pad must connect to PCB GND. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pre-charge FET per channel | Reduces ghosting in multiplexed LED displays by discharging parasitic capacitance before common-line switching. |
| Grouped output switching | Nine independent output groups with ~1ns inter-group delay minimize simultaneous switching noise and EMI. |
| Single-resistor current programming | One external RIREF sets identical sink current for all 16 channels - simplifies BOM and eliminates per-channel calibration. |
| 35MHz serial interface | Enables rapid full-frame updates (<500ns) required for flicker-free video-rate LED scanning at 1/16 duty cycle. |
| CMOS-compatible I/O | Operates natively with 3.3V or 5V controllers - no level translators needed for MCU/FPGA GPIO interfacing. |
Applications
| Video Signage | Outdoor Message Boards |
|---|---|
|
Use Scenario: High-brightness, wide-viewing-angle LED panels used in transportation hubs and retail environments. IC Role / Device Role / Timing Role: Constant-current sink driver controlling 16 rows/columns in 1/16 scan architecture with synchronized BLANK blanking. Use Value: Pre-charge FET eliminates ghosting during rapid row/column switching, ensuring sharp text and clean motion rendering. |
Use Scenario: Weather-resistant alphanumeric displays deployed on highway billboards and municipal signage. IC Role / Device Role / Timing Role: Primary LED current controller managing 16 discrete segments per character module under wide temperature variation. Use Value: ±3% channel-to-channel current matching maintains uniform brightness across all segments despite ambient temperature shifts from –40°C to +85°C. |
| Industrial Control Panels | Architectural LED Lighting |
|
Use Scenario: Operator interface panels with status-indicator LEDs requiring long-term reliability and stable luminance. IC Role / Device Role / Timing Role: Low-power, precision current source for status LEDs driven via SPI-like serial interface from PLC or HMI controller. Use Value: Single RIREF resistor and device-to-device ±4% current accuracy simplify factory calibration and reduce test time. |
Use Scenario: Linear LED strips and accent lighting systems where consistent color and intensity are critical. IC Role / Device Role / Timing Role: Channel-isolated current sink enabling independent dimming control of 16 zones via PWM-modulated LAT/BLANK signals. Use Value: 10V output voltage headroom supports 3–4 series white LEDs per channel without external boost converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar constant-current LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX7219CNG+ | 8-channel, 400kHz SPI interface, no pre-charge FET, integrated BCD decoder and scan-limit registers. | Better suited for 7-segment numeric displays; lacks ghosting mitigation for high-speed matrix video. | Select when driving static alphanumeric displays with minimal firmware overhead and built-in digit decoding. |
| TLC5940IPWP | 16-channel, 12-bit PWM grayscale control, no pre-charge FET, requires external Vref, higher pin count (28-TSSOP). | Optimized for grayscale video with per-channel PWM; less effective than TLC59283RGER for ghost-free binary scanning. | Choose when per-channel intensity modulation (not just on/off) is required and layout space permits larger package. |
Compared with MAX7219CNG+ and TLC5940IPWP, the TLC59283RGER uniquely combines 16-channel binary control, hardware pre-charge FET, and grouped switching in a compact QFN-24 package - making it optimal for cost-sensitive, high-refresh-rate LED matrix applications where ghosting elimination is mandatory.
Availability
TLC59283RGER is available at Aetrix Electronics and suitable for video signage, outdoor message boards, and industrial control panels requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for TLC59283RGER 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.
The TLC59283RGER belongs to TI's LED driver product line, engineered specifically for high-reliability, low-ghosting multiplexed LED display systems operating across extended industrial temperature ranges.
FAQ
What is the maximum LED supply voltage supported by the TLC59283RGER?
The TLC59283RGER supports up to 10V on its OUT0–OUT15 pins, allowing direct connection to LED strings with up to three or four standard white LEDs (VF ≈ 3.2V each) without external boost circuitry. This rating is specified in the Absolute Maximum Ratings table and verified across the full operating temperature range.
How does the pre-charge FET in the TLC59283RGER reduce ghosting?
The TLC59283RGER's pre-charge FET actively pulls each OUTn node to VCC during BLANK high, discharging parasitic capacitance before the next common-line switch. This prevents unintended current flow through adjacent LEDs during multiplexed scanning - a mechanism confirmed in Figures 7-1 and 7-2 of the official datasheet.
Can multiple TLC59283RGER devices be daisy-chained, and how is it implemented?
Yes - the TLC59283RGER supports daisy-chaining via its SOUT pin, which outputs the MSB of the internal 16-bit shift register. Connecting SOUT of one device to SIN of the next enables cascaded control of 32, 48, or more channels using a single serial interface, as shown in the Typical Application Circuit (Figure 9-1).
What is the role of the IREF pin on the TLC59283RGER, and how is current set?
The IREF pin hosts an internal 1.208V reference voltage. Connecting an external resistor (RIREF) between IREF and GND sets the sink current for all 16 channels using the formula IOUT = 43.8 × (1.208V / RIREF). Table 7-1 in the datasheet lists exact resistor values for target currents from 2mA to 45mA.
Does the TLC59283RGER require external pull-up or pull-down resistors on its control pins?
No - the TLC59283RGER integrates internal biasing: BLANK has a 500kΩ (typ) pull-up to VCC, and LAT has a 500kΩ (typ) pull-down to GND. These on-chip resistors eliminate the need for external components while ensuring defined logic states during power-up and idle conditions.
TLC59283RGER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Linear
- Topology:
- Shift Register
- Internal Switch(s):
- Yes
- Number of Outputs:
- 16
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 10V
- Current - Output / Channel:
- 45mA
- Frequency:
- 35MHz
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-VQFN (4x4)
TLC59283RGER FAQ
1.How can I place an order for TLC59283RGER through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC59283RGER 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 TLC59283RGER reliable?
The price and inventory of TLC59283RGER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC59283RGER is usually 5 days.
3.What payment methods are accepted for TLC59283RGER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC59283RGER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC59283RGER?
TLC59283RGER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC59283RGER 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 TLC59283RGER?
For technical support, including TLC59283RGER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC59283RGER requirements.
6.How does Aetrix verify that TLC59283RGER is sourced from the original manufacturer or authorized distributors?
All TLC59283RGER 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 TLC59283RGER meets industry standards.
7.What is the process for return or replacement of TLC59283RGER?
All TLC59283RGER units undergo pre-shipment inspection (PSI). If there is an issue with TLC59283RGER, 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 TLC59283RGER part is unused and in its original packaging.
Return procedure for TLC59283RGER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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