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Texas Instruments TLC5916IPW
- Part No.:
- TLC5916IPW
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC5916IPW.pdf
- Description:
- IC LED DRVR LINEAR 120MA 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,097
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Product details
Overview
TLC5916IPW from Texas Instruments is an 8-channel constant-current LED sink driver IC designed for precise current control in LED display and lighting systems. It delivers 3–120 mA per channel with ±3% inter-channel current accuracy, supports 3.0–5.5 V supply, and features open-load and overtemperature detection. It is used in LED signage, video panels, and white goods where uniform brightness and fault monitoring are critical.
For engineers reviewing the TLC5916IPW datasheet, TLC5916IPW pinout, TLC5916IPW application, or TLC5916IPW equivalent, key selection considerations include its 30-MHz serial interface, R-EXT–based current programming, error-detection capability in Special Mode, and compatibility with cascaded LED driver architectures.
Technical Context
The TLC5916IPW integrates an 8-bit shift register, output latches, and eight independent constant-current sinks with thermal and open-load monitoring. Its dual-mode operation-Normal Mode for data shifting/latching 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 uses a single external resistor (R-EXT) to set all output currents identically, while supporting 256-step programmable global gain (1/12 to 127/128) for fine-tuning across devices. Unlike the TLC5917, it lacks short-circuit detection but retains full open-load and overtemperature detection with channel-specific shutdown behavior.
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 by R-EXT and gain code |
| Inter-channel accuracy | < ±3% max - ensures uniform LED brightness across all 8 outputs |
| Max LED voltage | 20 V - supports multi-LED strings or high-VF LEDs without external boost |
| Supply voltage | 3.0 V to 5.5 V - compatible with both 3.3-V and 5-V logic and power domains |
| Serial clock frequency | Up to 30 MHz - enables fast update rates for dynamic LED displays |
| Error detection | Open-load and overtemperature (global + per-channel); no short-circuit detection |
Pinout & Package
TLC5916IPW is housed in a 16-pin TSSOP package (5.00 mm × 4.40 mm), optimized for compact LED driver layouts with thermal efficiency and surface-mount compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Common return path for logic and sink current; must be low-impedance for stable current regulation |
| SDI (Pin 2) | Serial data input | Accepts 8-bit LED on/off data synchronized to CLK rising edge |
| CLK (Pin 3) | Serial clock input | Rising edge shifts data into internal shift register; 30-MHz max rate |
| 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 one LED cathode; 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-setting resistor node | Connects external resistor to GND to define base current level for all 8 channels |
| SDO (Pin 14) | Serial data output | Shifts out latched data or error status bits; enables daisy-chaining of multiple TLC5916IPW devices |
| OE(ED2) (Pin 13) | Output enable / mode select | Active-low enables outputs; pulse width determines entry into Special Mode for diagnostics or gain programming |
Key Features
| Feature | Design Value |
|---|---|
| Single-resistor current setting | One R-EXT sets identical sink current for all 8 channels - simplifies BOM and layout vs per-channel resistors |
| 256-step global current gain | Runtime-programmable gain (1/12 to 127/128) compensates inter-IC current variation to <1% - critical for white balancing |
| Open-load detection | Detects open LED strings per channel during active drive - prevents false-off states and enables system-level fault reporting |
| Per-channel overtemperature shutdown | Individual thermal sensors disable only affected output - preserves partial functionality during local overheating |
| Schmitt-trigger inputs | CLK, LE(ED1), OE(ED2), and SDI tolerate slow or noisy logic edges - improves noise immunity in industrial environments |
Applications
| LED Signage | Video Billboards |
|---|---|
Use Scenario: Outdoor alphanumeric and graphic displays using multiplexed red/green/blue LED modules. IC Role / Device Role / Timing Role: Constant-current sink driver controlling individual LED segments with synchronized blanking via OE(ED2). Use Value: Ensures consistent luminance across large arrays despite VF variation and temperature drift, while open-load detection flags failed LEDs before visible degradation. |
Use Scenario: High-refresh-rate dynamic video panels requiring rapid pixel updates and thermal resilience. IC Role / Device Role / Timing Role: Serially cascaded sink driver providing per-pixel current control with 30-MHz clock support for real-time frame loading. Use Value: Enables >1 kHz refresh without visible flicker; per-channel thermal shutdown maintains partial panel operation during localized hotspots. |
| Gaming Machines | White Goods UI |
Use Scenario: Bright, animated front-panel indicators and prize-light arrays in slot machines and arcade cabinets. IC Role / Device Role / Timing Role: LED current controller with integrated error reporting for predictive maintenance and uptime assurance. Use Value: Reduces service calls by detecting open LEDs before complete failure; Schmitt-trigger inputs reject EMI from nearby solenoids and motors. |
Use Scenario: Appliance control panels (ovens, refrigerators) with dimmable status LEDs under variable ambient temperatures. IC Role / Device Role / Timing Role: Low-power, thermally robust LED driver supporting 3.3-V MCU interfaces and wide operating temperature (–40°C to 125°C). Use Value: Maintains calibrated brightness across kitchen temperature swings; R-EXT + gain tuning allows factory calibration for color consistency. |
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 |
|---|---|---|---|
| TLC5917IPW | Includes short-circuit detection (TLC5916 lacks this); otherwise identical pinout, timing, and current specs | Required where LED string short faults must be distinguished from open faults (e.g., automotive interior lighting) | Select TLC5917IPW only if short-circuit diagnostics are mandatory; otherwise TLC5916IPW offers same core functionality at lower cost |
| TPS61196RTJR | Boost-based constant-current LED driver with integrated switch; 1-channel vs 8-channel; requires external inductor | Used in high-side, high-voltage LED strings (>20 V); not suitable for direct replacement in parallel-sink topologies | Choose TPS61196RTJR for single-string, high-VF applications; TLC5916IPW remains optimal for multi-channel, low-VLED sink architectures |
Compared with TLC5917IPW, TLC5916IPW omits short-circuit detection but retains identical open-load/thermal protection and cascading capability - making it ideal for cost-sensitive, high-channel-count signage. Versus TPS61196RTJR, TLC5916IPW provides 8 independent sinks without magnetics, enabling simpler PCB layout and lower system BOM cost for standard LED arrays.
Availability
TLC5916IPW is available at Aetrix Electronics and suitable for LED signage, video billboards, and gaming machine designs requiring stable component supply, long-term manufacturability, and consistent parametric performance across production batches.
Supply support for TLC5916IPW 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 expertise in precision analog IC design.
The TLC5916IPW belongs to TI's LED driver product line, engineered specifically for high-reliability, multi-channel constant-current LED control in commercial and industrial display systems - emphasizing accuracy, fault resilience, and ease of serial integration.
FAQ
What is the maximum output current per channel for the TLC5916IPW?
The TLC5916IPW supports a maximum output current of 120 mA per channel when configured with appropriate R-EXT value and operating conditions. This rating is valid across the full recommended supply range (3.0 V to 5.5 V) and ambient temperature (–40°C to 125°C), provided thermal limits are observed. The actual current is set externally via R-EXT and can be further scaled down using the 256-step global gain register in the TLC5916IPW.
Does the TLC5916IPW support daisy-chaining with other LED drivers?
Yes, the TLC5916IPW supports seamless daisy-chaining via its SDO (serial data out) and SDI (serial data in) pins. When multiple TLC5916IPW devices are cascaded, the SDO of one device connects directly to the SDI of the next, allowing a single 8-bit data stream to configure all drivers in sequence. This architecture reduces MCU GPIO usage and simplifies firmware for large LED arrays - a core capability confirmed in the TLC5916IPW functional description and timing diagrams.
How does open-load detection work in the TLC5916IPW?
The TLC5916IPW performs open-load detection by comparing actual channel current against a threshold (IOUT,Th = 0.5 × target current). Detection occurs only when the channel is actively enabled (OE low and latch set). If current falls below threshold, the corresponding bit in the internal error register is set. This status is readable only in Special Mode via SDO after issuing the correct OE(ED2)/LE(ED1) pulse sequence - a behavior explicitly defined for the TLC5916IPW in Section 9.3.1 of its datasheet.
Can the TLC5916IPW operate from a 3.3-V supply?
Yes, the TLC5916IPW is fully specified to operate from a 3.3-V supply, falling within its recommended 3.0–5.5 V range. All electrical characteristics - including output current accuracy, switching timing, and logic thresholds - are guaranteed at 3.3 V per TI's SLVS695D datasheet. Its Schmitt-trigger inputs ensure reliable operation even with marginal 3.3-V logic swing, making the TLC5916IPW suitable for mixed-voltage systems interfacing with 3.3-V microcontrollers.
What package options are available for the TLC5916IPW?
The TLC5916IPW is exclusively offered in the 16-pin TSSOP package (PW suffix), measuring 5.00 mm × 4.40 mm. This surface-mount package provides superior thermal performance versus PDIP and smaller footprint than SOIC, aligning with modern high-density LED driver PCB layouts. Other variants like TLC5916IDR (SOIC) or TLC5916N (PDIP) exist but carry different part numbers - the "IPW" suffix unambiguously denotes the TSSOP variant of the TLC5916IPW.
TLC5916IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm 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-TSSOP
TLC5916IPW FAQ
1.How can I place an order for TLC5916IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC5916IPW 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 TLC5916IPW reliable?
The price and inventory of TLC5916IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC5916IPW is usually 5 days.
3.What payment methods are accepted for TLC5916IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC5916IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC5916IPW?
TLC5916IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC5916IPW 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 TLC5916IPW?
For technical support, including TLC5916IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC5916IPW requirements.
6.How does Aetrix verify that TLC5916IPW is sourced from the original manufacturer or authorized distributors?
All TLC5916IPW 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 TLC5916IPW meets industry standards.
7.What is the process for return or replacement of TLC5916IPW?
All TLC5916IPW units undergo pre-shipment inspection (PSI). If there is an issue with TLC5916IPW, 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 TLC5916IPW part is unused and in its original packaging.
Return procedure for TLC5916IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC5916IPW Tags
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BCR402RE6327HTSA1
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BCR430UXTSA2
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BCR420UE6433HTMA1
Infineon Technologies
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BCR420UE6327HTSA1
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BCR421UE6327HTSA1
Infineon Technologies
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LYT1604D-TL
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HV9910CLG-G
Microchip Technology
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CL2N8-G
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BCR420UW6-7
Diodes Incorporated
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BCR421UW6-7
Diodes Incorporated
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
Diodes Incorporated
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