My Inquiry
My Account
Texas Instruments TLC5922DAPR
- Part No.:
- TLC5922DAPR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 32-PowerTSSOP (0.240", 6.10mm Width)
- Datasheet:
-
TLC5922DAPR.pdf
- Description:
- IC LED DRVR LINEAR 80MA 32HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,897
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLC5922DAPR from Texas Instruments is a 16-channel constant-current LED sink driver in a 32-pin HTSSOP PowerPAD™ package, delivering programmable 0–80 mA per channel with ±1% typical current accuracy and 128-step dot-correction for brightness uniformity across LED arrays. It supports 30 MHz SPI-compatible serial interface, operates from 3.0 V to 5.5 V supply, and drives LED loads up to 17 V - used in full-color LED displays and signage requiring precise per-channel intensity control.
For engineers reviewing the TLC5922DAPR datasheet, TLC5922DAPR pinout, TLC5922DAPR application, or TLC5922DAPR equivalent, key selection considerations include its 112-bit dot-correction data width, BLANK-controlled global output disable, MODE-selectable On/Off vs. DC register loading, and thermal management via exposed PowerPAD™ die attach.
Technical Context
The TLC5922DAPR implements dual-mode serial control: MODE = L selects 16-bit On/Off register loading (MSB-first), while MODE = H enables 112-bit dot-correction register loading (16 × 7-bit words). Each output features graduated 20 ns inter-channel delay to suppress inrush current during simultaneous turn-on.
Current regulation is set by a single external resistor (RIREF) connected between IREF and GND, establishing a reference voltage of 1.24 V (typ) and scaling output current by 40× that reference current. Output switching achieves 10 ns rise/fall times (typ) at VCC = 5 V and TA = 60 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 16 independent constant-current sink outputs (OUT0–OUT15) |
| Max Output Current | 80 mA per channel (set by RIREF; 600 Ω yields 80 mA typ) |
| Current Accuracy | ±1% typical channel-to-channel matching at same VOUT and temperature |
| Dot-Correction Resolution | 7-bit (128 steps), individually adjustable per channel for LED brightness calibration |
| Serial Interface Speed | 30 MHz max SCLK frequency; MSB-first, SPI-compatible protocol |
| Supply Voltage Range | 3.0 V to 5.5 V VCC; supports logic-level compatibility with 3.3 V and 5 V controllers |
| LED Supply Capability | Up to 17 V applied to OUT pins - enables high-VF LED strings without external boost |
Pinout & Package
Package: 32-pin HTSSOP (DAP) with exposed thermal PowerPAD™ die pad - requires PCB thermal vias and soldered copper area for effective heat dissipation per TI SLMA002/SLMA004 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Analog/digital ground return for internal circuitry and IREF bias |
| BLANK (Pin 2) | Global output enable | High = all OUTx forced OFF regardless of register state; low = normal operation |
| XLAT (Pin 3) | Data latch strobe | Rising edge latches serial data into either On/Off or dot-correction register per MODE |
| SCLK (Pin 4) | Serial clock input | Drives internal shift register on rising edge; max 30 MHz rate |
| SIN (Pin 5) | Serial data input | MSB-first input for On/Off (16-bit) or dot-correction (112-bit) data |
| PGND (Pins 6, 14, 19, 24, 27) | Power ground | Separate low-impedance return path for high-current output sinks |
| OUT0–OUT15 (Pins 7–8, 10–13, 15–16, 17–18, 20–23, 25–26) | Constant-current sink outputs | Each delivers programmable 0–80 mA; includes 20 ns inter-channel delay staging |
| VCC (Pin 32) | Logic supply | Powers internal logic, shift registers, and control circuitry (3.0–5.5 V) |
| IREF (Pin 31) | Reference current input | Connects to external RIREF to set full-scale output current (VIREF = 1.24 V typ) |
| MODE (Pin 30) | Function mode select | Low = On/Off register mode (16-bit shift); high = dot-correction mode (112-bit shift) |
| SOUT (Pin 28) | Serial data output | Enables daisy-chaining multiple TLC5922 devices without external logic |
| NC (Pin 29) | No connect | Not internally bonded; must remain unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Controlled in-rush current | Graduated 20 ns inter-output delay prevents simultaneous turn-on spikes and reduces required bulk capacitance |
| 128-step dot-correction | Per-channel 7-bit current scaling enables precise LED binning compensation and display grayscale linearity |
| 30 MHz serial interface | Enables fast update rates for high-refresh-rate LED panels (e.g., >1 kHz frame rate for 16-channel systems) |
| Single-resistor current setting | RIREF sets full-scale current for all 16 channels - simplifies BOM and eliminates per-channel trimming |
| PowerPAD™ thermal package | Exposed die pad lowers junction-to-board thermal resistance (θJB ≈ 3.5 °C/W typical), enabling 3.9 W continuous dissipation |
Applications
| Monocolor LED Signboard | Full-Color LED Display Panel |
|---|---|
Use Scenario: Outdoor alphanumeric signage using discrete red, green, and blue LEDs per pixel, driven in multiplexed scan mode. IC Role / Device Role / Timing Role: TLC5922DAPR acts as constant-current column driver, sinking current from common-anode LED rows controlled by external row drivers. Use Value: ±1% current matching ensures consistent brightness across all sign segments; 128-step dot-correction compensates for LED aging and batch variation over 10+ year deployments. |
Use Scenario: Indoor video wall with 16×16 RGB pixel modules, each requiring independent intensity control per color sub-pixel. IC Role / Device Role / Timing Role: TLC5922DAPR serves as per-module RGB channel driver - three devices per module (R/G/B), synchronized via shared XLAT and SCLK. Use Value: 30 MHz interface supports real-time gamma-corrected video streaming; BLANK pin enables flicker-free PWM dimming at >2 kHz without visible artifacts. |
| LED Backlighting for Industrial HMI | Multicolor Architectural Lighting |
Use Scenario: High-reliability backlight for medical-grade LCD displays where color stability and long-term luminance uniformity are critical. IC Role / Device Role / Timing Role: TLC5922DAPR drives white LED strings in local dimming zones, with dot-correction calibrated per zone during factory programming. Use Value: 17 V output capability allows direct drive of 5-LED white strings (VF ≈ 3.4 V) without boost converters; thermal PowerPAD™ sustains 85 °C ambient operation. |
Use Scenario: Dynamic façade lighting with programmable color washes, requiring smooth intensity transitions and channel-to-channel consistency. IC Role / Device Role / Timing Role: TLC5922DAPR functions as node-level current controller in distributed DMX512 or Art-Net networked lighting systems. Use Value: MODE-selectable register access enables runtime reconfiguration: On/Off for scene switching, dot-correction for fine-tuning hue/saturation balance across fixtures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC5940RHBR | 16-channel, 12-bit PWM + 6-bit dot-correction; integrated grayscale counter; requires external VREF for current setting | Better suited for high-resolution grayscale video; lacks BLANK-driven global disable and inter-channel delay | Select when 4096-step PWM dimming is required over analog current scaling |
| IS31FL3728-QFLS4-TR | 28-channel, I²C interface, auto-breathing, integrated thermal foldback; 30 mA max per channel | Designed for space-constrained RGBW lighting; no SPI interface or programmable inter-channel delay | Select for I²C-based smart lighting nodes needing built-in safety features and smaller footprint |
Compared with TLC5922DAPR, TLC5940RHBR offers higher grayscale resolution but requires more complex timing and lacks in-rush suppression, while IS31FL3728-QFLS4-TR provides greater channel density and bus simplicity at lower current capability and no inter-output delay staging.
Availability
TLC5922DAPR is available at Aetrix Electronics and suitable for LED signage, industrial HMI backlighting, and architectural lighting applications requiring stable component supply, long-lifecycle support, and RoHS-compliant tape-and-reel packaging.
Supply support for TLC5922DAPR 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 U.S.-based semiconductor company specializing in analog, embedded processing, and power management ICs, with leadership in precision analog and high-reliability industrial solutions.
The TLC5922 product line is designed for high-accuracy, multi-channel LED current control in demanding visual applications - emphasizing brightness uniformity, thermal robustness, and noise-immune serial interface operation.
FAQ
What is the maximum LED supply voltage supported by the TLC5922DAPR?
The TLC5922DAPR supports up to 17 V applied to its OUT0–OUT15 pins, enabling direct drive of LED strings with forward voltages totaling ≤17 V without external boost circuitry. This rating is specified under Recommended Operating Conditions and verified across the full –20 °C to 85 °C operating temperature range. The device maintains 80 mA sink capability at this voltage when RIREF = 600 Ω and VCC = 5 V.
How does the MODE pin affect serial data loading in the TLC5922DAPR?
The MODE pin determines the width and function of the internal shift register in the TLC5922DAPR: when MODE = L, the device accepts 16-bit On/Off data (1 bit per channel); when MODE = H, it accepts 112-bit dot-correction data (7 bits per channel). XLAT rising edge latches the loaded data into the respective register. Both modes use MSB-first clocking on SCLK, and SOUT enables cascading.
Can the TLC5922DAPR be used without an external current-setting resistor?
No - the TLC5922DAPR requires an external resistor (RIREF) connected between IREF and GND to establish its output current scale. The internal bandgap reference fixes VIREF at 1.24 V (typ), and output current equals 40 × (1.24 V / RIREF). Minimum RIREF is 600 Ω to limit max current to 80 mA; omitting the resistor disables regulated current output and risks damage or undefined behavior.
What thermal design guidance applies to the TLC5922DAPR's PowerPAD™ package?
The TLC5922DAPR's exposed thermal die pad (PowerPAD™) must be soldered to a PCB copper area with ≥4 thermal vias (0.3 mm diameter, filled or capped) connecting to an internal ground plane. TI recommends ≥250 mm² copper area per device. Without proper thermal attachment, junction temperature can exceed limits at >1.5 W dissipation. Full thermal guidelines are in SLMA002 and SLMA004 application briefs.
Does the TLC5922DAPR support daisy-chaining, and how is it implemented?
Yes - the TLC5922DAPR supports daisy-chaining via its SOUT pin, which outputs shifted data after each SCLK cycle. To cascade n devices, connect SOUT of device N to SIN of device N+1, share SCLK, XLAT, MODE, and BLANK lines, and drive SIN of the first device. Total serial packet length becomes 16n bits (On/Off) or 112n bits (dot-correction), requiring proportional increase in SCLK cycles and XLAT timing margin.
TLC5922DAPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-PowerTSSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Linear
- Topology:
- -
- Internal Switch(s):
- Yes
- Number of Outputs:
- 16
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 17V
- Current - Output / Channel:
- 80mA
- Frequency:
- -
- Dimming:
- -
- Applications:
- Backlight, Lighting, Signage
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-HTSSOP
TLC5922DAPR FAQ
1.How can I place an order for TLC5922DAPR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC5922DAPR 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 TLC5922DAPR reliable?
The price and inventory of TLC5922DAPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC5922DAPR is usually 5 days.
3.What payment methods are accepted for TLC5922DAPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC5922DAPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC5922DAPR?
TLC5922DAPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC5922DAPR 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 TLC5922DAPR?
For technical support, including TLC5922DAPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC5922DAPR requirements.
6.How does Aetrix verify that TLC5922DAPR is sourced from the original manufacturer or authorized distributors?
All TLC5922DAPR 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 TLC5922DAPR meets industry standards.
7.What is the process for return or replacement of TLC5922DAPR?
All TLC5922DAPR units undergo pre-shipment inspection (PSI). If there is an issue with TLC5922DAPR, 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 TLC5922DAPR part is unused and in its original packaging.
Return procedure for TLC5922DAPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC5922DAPR 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…
