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Texas Instruments TLC59208FIPWR
- Part No.:
- TLC59208FIPWR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC59208FIPWR.pdf
- Description:
- IC LED DRVR LIN PWM 50MA 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,863
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Product details
Overview
TLC59208FIPWR from Texas Instruments is an I²C-controlled 8-channel open-drain LED driver optimized for RGBA color mixing, featuring per-channel 256-step (8-bit) PWM at 97 kHz, group dimming/blinking with 256-step control at 190 Hz or programmable 24 Hz–10.73 s, and 50 mA max output current per channel with 17 V output tolerance. It supports 3.3 V or 5 V supply and operates from –40°C to +85°C.
For engineers reviewing the TLC59208FIPWR datasheet, TLC59208FIPWR pinout, TLC59208FIPWR application, or TLC59208FIPWR equivalent, key selection criteria include I²C Fast-Mode Plus (1 MHz) compatibility, hardware addressability via A0–A2 pins (64 possible addresses), active-low RESET, software reset (SWRST), and dual-layer PWM architecture enabling simultaneous individual brightness + synchronized group blink/dim.
Technical Context
The TLC59208FIPWR integrates two independent PWM engines: one dedicated to individual LED channels (97 kHz, 256-step duty cycle), and a second group-level engine supporting either fixed 190 Hz dimming or fully programmable blink frequency (24 Hz to 10.73 s) and duty cycle (0%–99.6%). Its I²C interface complies with Fast-Mode Plus (1 MHz), includes noise filtering on SCL/SDA, and features 30 mA high-drive SDA output for high-capacitance buses.
Internally, it uses a 25 MHz oscillator requiring no external components, implements power-on reset (VPOR = 2.5 V), supports hot insertion, and provides active-low RESET with internal pull-up. Output states are updated either on ACK or STOP command - configurable per design requirement - and all outputs default high (LED off) after reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | 8 open-drain outputs (OUT0–OUT7), each capable of sinking up to 50 mA continuously |
| PWM Resolution | 256-step (8-bit) linear control per channel and per group - enables precise brightness gradation and smooth fade effects |
| Individual PWM Frequency | Fixed 97 kHz - eliminates audible noise and ensures stable LED current regulation |
| Group PWM Frequency Range | Programmable from 24 Hz to 10.73 s period - supports both subtle dimming and attention-grabbing blink patterns |
| I²C Interface | Fast-Mode Plus (FM+), 1 MHz max - reduces bus transaction time and supports longer trace lengths |
| Supply Voltage | 3.0 V to 5.5 V - compatible with both 3.3 V and 5 V microcontroller systems without level shifting |
| Output Voltage Tolerance | 17 V - allows direct connection to common LED strings without external protection diodes |
| Operating Temperature | –40°C to +85°C - qualified for industrial and commercial embedded lighting applications |
Pinout & Package
Package: 16-pin TSSOP (PW), 5.00 mm × 4.40 mm body size, exposed pad not present. Compatible with standard surface-mount reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A2 | Hardware I²C address inputs | Set one of 64 possible slave addresses; tied high/low to configure unique device identity on shared bus |
| GND | Power ground reference | Primary return path for all output currents and internal logic; must be low-impedance for stable PWM operation |
| OUT0–OUT7 | Open-drain LED sink outputs | Each drives LED cathode to GND; requires external anode supply (VLED); supports 50 mA per channel |
| RESET | Active-low asynchronous reset | Pulls all registers to POR state (outputs high, brightness = 0); requires external pull-up resistor if unused |
| SCL | I²C serial clock input | Master-generated clock synchronizing data transfer; includes internal noise filter for robust operation |
| SDA | I²C bidirectional data line | 30 mA drive strength enables reliable communication on buses with >400 pF capacitance |
| VCC | Logic and internal circuitry supply | Accepts 3.0–5.5 V; powers internal oscillator, I²C interface, and register logic - separate from LED supply |
Key Features
| Feature | Design Value |
|---|---|
| No-glitch power-up behavior | Internal POR holds outputs high until VCC ≥ 2.5 V - prevents unintended LED turn-on during rail ramp-up |
| Hot-insertion support | I²C pins tolerate voltage before VCC is applied - enables safe live replacement in modular LED systems |
| Software reset (SWRST) | Single I²C command (9Eh + A5h + 5Ah) resets all registers to POR defaults - eliminates need for physical RESET assertion |
| Configurable output update timing | Outputs change on STOP (default) or ACK - allows atomic multi-register updates or real-time per-byte adjustments |
| Four programmable I²C sub-call addresses | One ALL-CALL + three SUB-CALL addresses enable grouped control of LED subsets - e.g., red/green/blue banks |
| 5.5 V tolerant inputs | SCL, SDA, RESET, A0–A2 accept up to 5.5 V regardless of VCC - simplifies mixed-voltage system interfacing |
Applications
| Gaming Peripherals | Small Signage |
|---|---|
|
Use Scenario: RGB backlighting and status indicators on mechanical keyboards, gaming mice, and controller panels requiring dynamic color transitions and synchronized blink effects. IC Role / Device Role / Timing Role: TLC59208FIPWR acts as the primary LED sink controller, managing 8 discrete RGB element segments using individual 97 kHz PWM for flicker-free color blending and group 190 Hz dimming for ambient intensity modulation. Use Value: Enables smooth hue/saturation/brightness interpolation across multiple LEDs while minimizing MCU overhead via I²C auto-increment writes and sub-call addressing. |
Use Scenario: Compact indoor signage (e.g., retail price tags, wayfinding displays) with limited board space and need for uniform LED brightness across small character matrices. IC Role / Device Role / Timing Role: TLC59208FIPWR serves as a space-efficient 8-output LED driver, applying identical 256-step group PWM to ensure consistent luminance across all segments under varying ambient temperatures. Use Value: Eliminates discrete current-limiting resistors per LED and supports direct 17 V LED string connection - reducing BOM count and PCB area by >30% vs. discrete solutions. |
| Industrial HMI Panels | Consumer Audio Visual Equipment |
|
Use Scenario: Status and alert lighting on factory HMIs where reliability, ESD immunity, and wide temperature operation are critical. IC Role / Device Role / Timing Role: TLC59208FIPWR functions as a fault-tolerant LED driver with ±2000 V HBM ESD rating, active-low RESET for fail-safe shutdown, and thermal shutdown at 150°C. Use Value: Ensures LED visibility remains intact during brownouts or transient events due to low standby current (<1 μA) and glitch-free startup behavior. |
Use Scenario: Front-panel illumination and mode indicators in AV receivers, soundbars, and streaming devices requiring quiet, non-flickering light output. IC Role / Device Role / Timing Role: TLC59208FIPWR delivers 97 kHz individual PWM to eliminate audible coil whine and 256-step resolution for seamless dimming from 0.4% to 100% brightness. Use Value: Achieves <1% total harmonic distortion in LED current waveform - critical for premium audio equipment where electromagnetic interference must be minimized. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC59282RTJR | 16-channel, same 97 kHz PWM, but no group dimming/blinking; uses SPI instead of I²C; 30 mA max per channel | Better suited for high-channel-count static indicator arrays where I²C bus loading is a concern | Select when >8 outputs needed and SPI interface preferred; avoid when synchronized blinking or I²C scalability required |
| PCA9685PW | 16-channel, 200 Hz–1.6 kHz programmable PWM frequency, no group blink mode; 25 mA max per channel; 5.5 V tolerant inputs | Preferred for servo control or general-purpose PWM where frequency flexibility outweighs blink/dim feature set | Choose for cost-sensitive designs needing higher channel density and broader frequency tuning - not for RGBA color-mixing blink effects |
Compared with TLC59208FIPWR, TLC59282RTJR trades group control and I²C compatibility for higher channel count and SPI simplicity, while PCA9685PW offers greater PWM frequency range but lacks dedicated blink/dim synchronization - making TLC59208FIPWR uniquely suited for compact, synchronized multi-color LED systems.
Availability
TLC59208FIPWR is available at Aetrix Electronics and suitable for gaming peripherals, small signage, industrial HMI panels, and consumer audio visual equipment requiring stable component supply, long-term lifecycle support, and guaranteed authentic TI-sourced product.
Supply support for TLC59208FIPWR 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 ICs for industrial, automotive, and consumer markets.
The TLC59208FIPWR belongs to TI's LED driver product line designed specifically for high-fidelity, low-noise, I²C-controllable RGB/RGBA lighting in space-constrained embedded systems - emphasizing flicker-free operation, thermal resilience, and bus scalability.
FAQ
What is the maximum output current per channel for the TLC59208FIPWR?
The TLC59208FIPWR supports a maximum continuous output current of 50 mA per channel (OUT0–OUT7) under recommended operating conditions (TA = –40°C to +85°C, VCC = 3.0 V to 5.5 V). This rating applies to DC or PWM-driven loads with adequate PCB copper area for thermal dissipation. Exceeding this limit risks thermal shutdown activation at 150°C junction temperature.
Does the TLC59208FIPWR support both 3.3 V and 5 V I²C bus levels?
Yes, the TLC59208FIPWR supports 3.3 V and 5 V logic levels on its I²C interface: SCL, SDA, RESET, and address pins (A0–A2) are 5.5 V tolerant regardless of VCC voltage. When powered from 3.3 V, it correctly interprets 5 V I²C signals without level shifters - enabling interoperability with mixed-voltage microcontrollers and bus expanders in the same system.
How does the group blinking function work in the TLC59208FIPWR?
The TLC59208FIPWR implements group blinking via a dedicated 256-step group PWM register (GRPPWM) that superimposes a second modulation layer onto individual LED brightness. It supports either fixed 190 Hz dimming or fully programmable blink periods from 24 Hz to once every 10.73 seconds, with duty cycle adjustable from 0% to 99.6%. This enables synchronized flash patterns across all 8 outputs without additional MCU intervention.
Can the TLC59208FIPWR drive LEDs directly without external current-limiting resistors?
No - the TLC59208FIPWR is an open-drain sink driver and requires external current-limiting resistors (or constant-current LED drivers upstream) to set per-LED current. Its 50 mA rating defines maximum safe sink capability, not regulated current. Resistor value is calculated as R = (VLED − VOL) / ILED, where VOL ≤ 108 mV at 50 mA and VLED is the forward voltage of the connected LED at target current.
What is the purpose of the SWRST (software reset) function in the TLC59208FIPWR?
The SWRST function allows full register reset of the TLC59208FIPWR over the I²C bus using a specific command sequence: Start → 9Eh (SWRST address) → A5h → 5Ah → Stop. Upon successful execution, all internal registers revert to power-on-reset defaults - including output states (high/off), brightness values (0), and mode settings - providing deterministic recovery without requiring physical RESET pin assertion or power cycle.
TLC59208FIPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Linear
- Topology:
- -
- Internal Switch(s):
- Yes
- Number of Outputs:
- 8
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 17V
- Current - Output / Channel:
- 50mA
- Frequency:
- -
- Dimming:
- PWM
- Applications:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
TLC59208FIPWR FAQ
1.How can I place an order for TLC59208FIPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC59208FIPWR 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 TLC59208FIPWR reliable?
The price and inventory of TLC59208FIPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC59208FIPWR is usually 5 days.
3.What payment methods are accepted for TLC59208FIPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC59208FIPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC59208FIPWR?
TLC59208FIPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC59208FIPWR 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 TLC59208FIPWR?
For technical support, including TLC59208FIPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC59208FIPWR requirements.
6.How does Aetrix verify that TLC59208FIPWR is sourced from the original manufacturer or authorized distributors?
All TLC59208FIPWR 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 TLC59208FIPWR meets industry standards.
7.What is the process for return or replacement of TLC59208FIPWR?
All TLC59208FIPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLC59208FIPWR, 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 TLC59208FIPWR part is unused and in its original packaging.
Return procedure for TLC59208FIPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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