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Texas Instruments TLC59116IPWR
- Part No.:
- TLC59116IPWR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC59116IPWR.pdf
- Description:
- IC LED DRV LIN I2C 120MA 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,915
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Product details
Overview
TLC59116IPWR from Texas Instruments is a 16-channel I²C-bus constant-current LED sink driver optimized for RGBA color mixing and backlight control. It delivers 256-step individual PWM brightness per channel at 97 kHz, group dimming/blinking with programmable frequency (24 Hz–10.73 s), and supports 3.3 V or 5 V supply with 17 V output tolerance - used in gaming UI illumination and industrial status indicators.
For engineers reviewing the TLC59116IPWR datasheet, TLC59116IPWR pinout, TLC59116IPWR application, or TLC59116IPWR equivalent, key selection criteria include its 28-pin TSSOP package, REXT-based current programming (5–120 mA per channel), open-load/overtemperature error detection, Fast-mode Plus (1 MHz) I²C interface, and software reset capability via SWRST call.
Technical Context
The TLC59116IPWR integrates a 25-MHz internal oscillator enabling precise 97-kHz fixed-frequency PWM per channel without external timing components. Its dual PWM architecture overlays 256-step individual brightness control with an independent 256-step group signal - either fixed 190-Hz dimming or programmable blinking (24 Hz to 10.73 s period).
It implements hardware address pins (A0–A3) for up to 14 devices on one I²C bus, plus four software-programmable sub-call addresses for grouped command execution. Error detection includes per-channel open-load sensing (triggered when IOUT < 0.5 × IOUT,target) and dual overtemperature protection: global shutdown at ~170 °C and per-channel thermal cutoff.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output channels | 16 constant-current sink outputs, each independently controllable |
| Brightness resolution | 256-step (8-bit) linear PWM per channel, 97 kHz fixed frequency |
| Group control | 256-step group dimming (190 Hz fixed) or blinking (24 Hz–10.73 s) |
| Output current range | 5 mA to 120 mA per channel, set by external REXT resistor |
| I²C interface | Fast-mode Plus compatible, 1 MHz max clock, 30 mA SDA drive strength |
| Supply voltage | 3.0 V to 5.5 V; outputs tolerate up to 17 V - enables direct LED connection |
| Operating temperature | –40 °C to +85 °C ambient, with overtemperature shutdown at ~170 °C junction |
Pinout & Package
Package: 28-pin Thin Shrink Small-Outline Package (TSSOP), 9.70 mm × 4.40 mm body size, exposed pad not present (PW variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REXT | Current reference input | Connects external resistor to set all 16 output currents simultaneously (5–120 mA range) |
| A0–A3 | Hardware I²C address inputs | Four binary inputs enabling up to 14 unique device addresses on shared I²C bus |
| OUT0–OUT15 | Constant-current sink outputs | 16 open-drain outputs; each sinks programmed current to GND when enabled |
| VCC | Power supply | 3.0 V–5.5 V logic and analog supply; powers internal regulator and I²C interface |
| GND | Ground reference | Three dedicated ground pins (pins 10, 19, 24) reduce ground bounce in high-current switching |
| SCL / SDA | I²C serial interface | Fast-mode Plus (1 MHz) bidirectional bus; SDA has 30 mA drive strength for high-capacitance lines |
| RESET | Active-low hardware reset | Asynchronous reset; holds registers in default state until pulled high (requires external pull-up) |
Key Features
| Feature | Design Value |
|---|---|
| Hot-insertion support | Enables safe power-up/power-down on live I²C buses without bus contention or latch-up |
| Open-load detection | Per-channel fault flagging when LED is disconnected while active (IOUT < 0.5 × target) |
| Software reset (SWRST) | Full register reset via I²C command (D6h + A5h + 5Ah), identical to power-on reset behavior |
| No-glitch power-up | Internal POR ensures all outputs remain high-impedance until VCC ≥ 2.5 V and registers initialize |
| Noise-filtered I²C inputs | Integrated digital filters suppress spikes < 50 ns on SCL/SDA - improves robustness in noisy environments |
Applications
| Gaming Interface Lighting | Industrial Status Panels |
|---|---|
Use Scenario: RGB LED arrays on gaming keyboards and controllers require synchronized color transitions and independent per-key brightness control. IC Role / Device Role / Timing Role: TLC59116IPWR acts as a constant-current sink driver with 97 kHz individual PWM and 190 Hz group dimming to enable smooth color blending and low-flicker illumination. Use Value: Eliminates need for external MOSFETs or current-setting resistors per LED; reduces BOM count and layout area while supporting real-time brightness updates via I²C. |
Use Scenario: Factory HMIs use multi-color LEDs to indicate machine states (run/stop/fault) under variable ambient lighting and EMI conditions. IC Role / Device Role / Timing Role: TLC59116IPWR provides fault-tolerant LED driving with open-load detection and overtemperature shutdown - critical for unattended operation. Use Value: Built-in error flags (EFLAG1/EFLAG2) allow host MCU to detect failed LEDs or thermal events without additional sensing circuitry. |
| Small-Signage Backlighting | RGB Color-Mixing Modules |
Use Scenario: Compact retail signage uses edge-lit acrylic panels with discrete red/green/blue LEDs for dynamic branding and energy-efficient illumination. IC Role / Device Role / Timing Role: TLC59116IPWR drives each color channel with matched 256-step brightness control and group blinking for attention-grabbing effects. Use Value: 5.5-V tolerant inputs and 17-V output capability allow direct connection to common 5 V or 12 V LED strings without level shifters or boost converters. |
Use Scenario: Architectural lighting modules combine multiple TLC59116IPWR devices to control large RGB pixel arrays with synchronized color transitions. IC Role / Device Role / Timing Role: TLC59116IPWR serves as a scalable, addressable LED driver node - leveraging hardware (A0–A3) and software (sub-call) addressing for hierarchical control. Use Value: Four sub-call addresses and All Call I²C address enable simultaneous update of color groups (e.g., all red LEDs) with single I²C transaction - minimizing bus overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED sink driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC59283PWR | 16-channel, 5–120 mA sink, but only standard Fast-mode I²C (400 kHz); no group blinking; no open-load detection | Lacks programmable group blinking and per-channel fault reporting - suitable only for static or simple dimming applications | Choose when cost sensitivity outweighs advanced diagnostics and animation features |
| PCA9685PW | 16-channel, 256-step PWM at 200 Hz (not 97 kHz); no open-load or thermal detection; 5.5 V tolerant inputs only | Lower PWM frequency may cause visible flicker in fast-motion applications; no built-in fault monitoring | Prefer for basic LED dimming where high-frequency flicker immunity and error resilience are not required |
Compared with TLC59283PWR and PCA9685PW, the TLC59116IPWR uniquely combines 97 kHz flicker-free PWM, group blinking with 24 Hz–10.73 s range, and integrated open-load/overtemperature detection - making it optimal for visually demanding, safety-aware, or dynamically animated LED systems.
Availability
TLC59116IPWR is available at Aetrix Electronics and suitable for gaming peripherals, industrial HMIs, small-signage backlighting, and RGB color-mixing modules requiring stable component supply across production lifecycles.
Supply support for TLC59116IPWR 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 company specializing in analog and embedded processing technologies, with leadership in precision analog, power management, and interface solutions.
The TLC59116IPWR belongs to TI's LED driver product line, designed specifically for high-fidelity, fault-aware LED control in consumer, industrial, and commercial lighting applications requiring synchronized multi-channel dimming and diagnostics.
FAQ
What is the maximum output voltage rating for TLC59116IPWR?
The TLC59116IPWR supports a maximum output voltage of 17 V on all OUT0–OUT15 pins. This allows direct connection to common 5 V, 12 V, or even 24 V LED strings without external level-shifting circuitry - provided the current remains within the 5–120 mA per-channel range set by REXT. The 17 V rating applies regardless of VCC supply voltage (3.0–5.5 V).
How does the TLC59116IPWR implement open-load detection?
The TLC59116IPWR detects open-load conditions by comparing actual output current against a threshold (IOUT,Th = 0.5 × IOUT,target). Detection is only active when the channel is ON and PWM is disabled. If current falls below threshold, the corresponding bit in EFLAG1 or EFLAG2 registers is set to '0', indicating an open-circuit LED. This feature requires no external components and operates independently per channel.
Can TLC59116IPWR operate with a 3.3 V supply and still drive 5 V LEDs?
Yes - the TLC59116IPWR operates from 3.0 V to 5.5 V VCC, while its OUT0–OUT15 pins tolerate up to 17 V. When powered from 3.3 V, the IC fully controls 5 V LED strings by sinking current through the LEDs to ground. The output voltage headroom (17 V – VLED) must exceed the forward voltage drop of the LED string to maintain regulation; no level shifting is needed for the I²C interface either.
What is the function of the REXT pin on TLC59116IPWR?
The REXT pin on TLC59116IPWR connects to an external resistor that sets the reference current for all 16 output channels. Using Ohm's law and TI's gain factor (CG ≈ 0.992), REXT determines full-scale current: IOUT = (12.8 V / REXT) × CG. For example, REXT = 720 Ω yields ~26 mA per channel. This single-resistor calibration ensures tight channel-to-channel matching (±6%) without per-channel trimming.
Does TLC59116IPWR support simultaneous update of all 16 LED outputs?
Yes - the TLC59116IPWR supports atomic output update on STOP condition (default mode). When writing to multiple PWM registers in sequence, the new brightness values take effect only after the I²C STOP command is issued - preventing partial updates and visual artifacts. This behavior is configurable via MODE1 register bit 4 (AUTO_INCREMENT) and MODE2 register bit 0 (OUTCHG), ensuring glitch-free transitions during dynamic lighting sequences.
TLC59116IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-TSSOP (0.173", 4.40mm 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:
- 120mA
- Frequency:
- -
- Dimming:
- I2C
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-TSSOP
TLC59116IPWR FAQ
1.How can I place an order for TLC59116IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC59116IPWR 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 TLC59116IPWR reliable?
The price and inventory of TLC59116IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC59116IPWR is usually 5 days.
3.What payment methods are accepted for TLC59116IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC59116IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC59116IPWR?
TLC59116IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC59116IPWR 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 TLC59116IPWR?
For technical support, including TLC59116IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC59116IPWR requirements.
6.How does Aetrix verify that TLC59116IPWR is sourced from the original manufacturer or authorized distributors?
All TLC59116IPWR 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 TLC59116IPWR meets industry standards.
7.What is the process for return or replacement of TLC59116IPWR?
All TLC59116IPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLC59116IPWR, 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 TLC59116IPWR part is unused and in its original packaging.
Return procedure for TLC59116IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC59116IPWR Tags
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