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Texas Instruments TLC5916ID
- Part No.:
- TLC5916ID
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC5916ID.pdf
- Description:
- IC LED DRVR LINEAR 120MA 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
TLC5916ID from Texas Instruments is an 8-channel constant-current LED sink driver IC designed for precise current-controlled LED display and lighting systems. It delivers 3–120 mA per channel with ±3% inter-channel current matching, supports 3.0–5.5 V supply, and features open-load and overtemperature detection. It operates in cascaded LED matrix panels requiring uniform brightness and fault monitoring.
For engineers reviewing the TLC5916ID datasheet, TLC5916ID pinout, TLC5916ID application, or TLC5916ID equivalent, key selection criteria include its 8-bit serial interface, R-EXT–based current programming, error-detection capability in Special Mode, and compatibility with high-speed (30 MHz) daisy-chained LED control architectures.
Technical Context
The TLC5916ID integrates an 8-bit shift register, output latches, and eight independent constant-current sinks with internal current regulation referenced to a single external resistor (R-EXT). Its dual-mode operation-Normal Mode for data loading and Special Mode for error/status readback or global current gain adjustment-relies on edge-triggered LE(ED1) and pulse-width–sensitive OE(ED2) control signals.
It implements open-load detection by comparing actual output current against 50% of target current (IOUT,Th = 0.5 × IOUT,target), and includes thermal shutdown with global and per-channel trip points (150–200°C). Unlike the TLC5917ID, it lacks short-circuit detection-confirmed by Device Comparison Table and Feature Description sections.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output channels | 8 independent constant-current sink outputs (OUT0–OUT7) |
| Output current range | 3 mA to 120 mA per channel, set via single R-EXT resistor |
| Current accuracy | < ±3% max between channels; < ±6% max between ICs |
| Supply voltage | 3.0 V to 5.5 V - supports both 3.3 V and 5 V logic/system rails |
| Max output voltage | 20 V - enables driving multi-LED strings or high-VF LEDs |
| CLK frequency | Up to 30 MHz - enables fast refresh rates in high-resolution LED panels |
| Error detection | Open-load and overtemperature only; no short-circuit detection (TLC5917 exclusive) |
Pinout & Package
Package: SOIC-16 (9.90 mm × 3.91 mm), surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Common return for logic and current-sink paths; must be low-impedance |
| SDI (Pin 2) | Serial data input | Accepts 8-bit LED on/off data on rising CLK edges; feeds shift register |
| CLK (Pin 3) | Clock input | Rising-edge–triggered; controls data shift into shift register and SDO timing |
| LE(ED1) (Pin 4) | Data latch / mode control | Latches shift register to output latch in Normal Mode; selects Special Mode function when pulsed with OE(ED2) |
| OUT0–OUT7 (Pins 5–12) | Constant-current sink outputs | Each drives cathode of LED string; sinks up to 120 mA with <±3% matching |
| VDD (Pin 16) | Power supply | 3.0–5.5 V input powering logic and current regulators; bypass capacitor required |
| R-EXT (Pin 15) | Current reference terminal | Connects external resistor to GND to set full-scale output current for all channels |
| SDO (Pin 14) | Serial data output | Shifts out latched data or error status code; enables daisy-chaining multiple TLC5916ID devices |
| OE(ED2) (Pin 13) | Output enable / mode trigger | Active-low enables outputs; one-clock pulse initiates Special Mode transition |
Key Features
| Feature | Design Value |
|---|---|
| Single-resistor current tuning | One R-EXT sets identical 3–120 mA per-channel current across all 8 outputs |
| Dual-mode serial interface | Normal Mode (data load/latch) and Special Mode (error readback or 256-step gain control) |
| Open-load fault detection | Per-channel detection triggered when IOUT falls below 50% of target current |
| Thermal protection | Global shutdown at 150–200°C; per-channel shutdown preserves remaining outputs |
| High-speed daisy-chain support | 30 MHz CLK and <105 ns output rise/fall times enable >1 kHz refresh in large LED arrays |
Applications
| LED Video Billboards | 7-Segment Display Modules |
|---|---|
|
Use Scenario: Outdoor full-color video billboard using cascaded LED modules with uniform brightness and real-time fault reporting. IC Role / Device Role / Timing Role: TLC5916ID acts as channel-level constant-current sink driver, receiving serialized pixel data and enabling per-segment current control. Use Value: ±3% inter-channel current matching ensures consistent luminance across thousands of LEDs; open-load detection flags dead segments before visual degradation occurs. |
Use Scenario: Industrial panel meter with multiplexed 7-segment displays requiring stable segment intensity across temperature and supply variation. IC Role / Device Role / Timing Role: TLC5916ID drives each segment cathode with programmable current, synchronized via microcontroller SPI interface. Use Value: R-EXT–based current setting eliminates per-segment calibration; 30 MHz clock supports rapid multiplexing without flicker. |
| Gaming Machine Displays | White Goods Indicator Panels |
|
Use Scenario: Slot machine front-panel LED animations with dynamic brightness control and reliability-critical fault logging. IC Role / Device Role / Timing Role: TLC5916ID provides independent on/off control per LED group, with Special Mode used to verify illumination integrity during power-up self-test. Use Value: Error status readback via SDO allows firmware to log open-circuit failures without external sensing; thermal shutdown prevents overheating in enclosed cabinets. |
Use Scenario: Refrigerator or washing machine control panel with multi-color status indicators operating across –40°C to +85°C ambient. IC Role / Device Role / Timing Role: TLC5916ID sinks current for red/green/blue indicator LEDs, configured via fixed R-EXT for consistent color balance. Use Value: Constant-current operation maintains LED intensity despite VDD droop during compressor startup; ±6% inter-IC matching enables batch-consistent assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar constant-current LED sink driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC5917ID | Includes short-circuit detection (TLC5916ID lacks this feature); otherwise identical pinout, interface, and current specs | Required where LED string short faults must be distinguished from open faults (e.g., automotive interior lighting) | Select TLC5917ID only if short-circuit detection is mandatory; otherwise TLC5916ID offers same core functionality at lower cost |
| MAX7219CWG+ | Integrated scan controller + 8×8 matrix driver; higher integration but fixed 5–30 mA range and no R-EXT tuning | Suitable for 8×8 LED matrices but not for arbitrary 8-output linear configurations or wide-current-range applications | Choose MAX7219CWG+ only for standardized dot-matrix displays; TLC5916ID provides superior flexibility for custom LED layouts and current scaling |
Compared with TLC5917ID, TLC5916ID omits short-circuit detection but retains identical open-load/thermal protection and current programming; compared with MAX7219CWG+, TLC5916ID offers wider current range (3–120 mA vs 5–30 mA), external resistor tuning, and direct 1:1 channel mapping without scan logic overhead.
Availability
TLC5916ID is available at Aetrix Electronics and suitable for LED video billboards, 7-segment display modules, and gaming machine lighting requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TLC5916ID 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 decades of experience in LED driver innovation.
The TLC591x product line was engineered specifically for high-reliability LED display and signage applications demanding precise current matching, fault diagnostics, and daisy-chain scalability - not general-purpose switching or lighting control.
FAQ
What is the maximum output voltage rating for the TLC5916ID?
The TLC5916ID supports up to 20 V at its OUT0–OUT7 terminals, enabling direct drive of multi-LED series strings or high-forward-voltage LEDs without external boost circuitry. This rating is specified under Absolute Maximum Ratings and confirmed in Section 7.1 and Feature list. The 20 V limit applies regardless of output current level and remains valid across the full operating temperature range (–40°C to +125°C).
Does the TLC5916ID support short-circuit detection like the TLC5917ID?
No, the TLC5916ID does not support short-circuit detection. As explicitly stated in the Device Comparison Table (Section 5) and Feature Description (Section 9.3.2), short-to-VLED detection is exclusive to the TLC5917ID. The TLC5916ID implements only open-load and overtemperature detection. Attempting to rely on TLC5916ID for short-fault identification will result in undetected failures.
How is output current programmed on the TLC5916ID?
Output current on the TLC5916ID is set globally across all 8 channels using a single external resistor (R-EXT) connected between Pin 15 (R-EXT) and GND. The value determines full-scale current per channel within 3–120 mA range, per the formula IOUT = (1.24 V / R-EXT) × CG, where CG is fixed at 1 for TLC5916ID. No digital register writes or EEPROM configuration are required.
Can multiple TLC5916ID devices be cascaded, and how does data flow work?
Yes, TLC5916ID devices support seamless daisy-chaining: SDI of the first device receives serial data from the controller; SDO of each device connects to SDI of the next. With 30 MHz clock support and <30 ns SDO propagation delay, up to dozens of devices can be cascaded while maintaining reliable timing. The shift register length scales linearly with device count, preserving full 8-bit per-channel resolution.
What is the purpose of the LE(ED1) and OE(ED2) pins beyond basic enable functions?
LE(ED1) and OE(ED2) serve dual roles: in Normal Mode, LE(ED1) latches shift-register data to output latches, and OE(ED2) enables/disables outputs. In Special Mode-activated by a one-clock pulse on OE(ED2)-their logic levels determine function: LE(ED1) high enables error-status readback via SDO; LE(ED1) low enables 256-step global current gain programming. This eliminates need for additional control lines.
TLC5916ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Linear
- Topology:
- Shift Register
- Internal Switch(s):
- Yes
- Number of Outputs:
- 8
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 20V
- Current - Output / Channel:
- 120mA
- Frequency:
- 30MHz
- Dimming:
- -
- Applications:
- Signage
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
TLC5916ID FAQ
1.How can I place an order for TLC5916ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC5916ID 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 TLC5916ID reliable?
The price and inventory of TLC5916ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC5916ID is usually 5 days.
3.What payment methods are accepted for TLC5916ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC5916ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC5916ID?
TLC5916ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC5916ID 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 TLC5916ID?
For technical support, including TLC5916ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC5916ID requirements.
6.How does Aetrix verify that TLC5916ID is sourced from the original manufacturer or authorized distributors?
All TLC5916ID 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 TLC5916ID meets industry standards.
7.What is the process for return or replacement of TLC5916ID?
All TLC5916ID units undergo pre-shipment inspection (PSI). If there is an issue with TLC5916ID, 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 TLC5916ID part is unused and in its original packaging.
Return procedure for TLC5916ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC5916ID Tags
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BCR430UXTSA2
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BCR420UE6433HTMA1
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BCR420UE6327HTSA1
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BCR421UE6327HTSA1
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LYT1604D-TL
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HV9910CLG-G
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CL2N8-G
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BCR420UW6-7
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BCR421UW6-7
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BCR420UFD-7
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BCR421UFD-7
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