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Texas Instruments TLC6C598CQDRQ1
- Part No.:
- TLC6C598CQDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC6C598CQDRQ1.pdf
- Description:
- IC LED DRIVER PS 50MA 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,612
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Product details
Overview
TLC6C598CQDRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified 8-bit serial-in, parallel-out shift register LED driver with eight low-side open-drain DMOS outputs, 40 V drain-source voltage rating, 50 mA continuous sink current per channel at 5 V VCC, and thermal shutdown protection. It interfaces between microcontrollers and LED loads in instrument clusters and tell-tale lamp systems.
For engineers reviewing the TLC6C598CQDRQ1 datasheet, TLC6C598CQDRQ1 pinout, TLC6C598CQDRQ1 application, or TLC6C598CQDRQ1 equivalent, key selection considerations include its 3–5.5 V logic supply range, cascading SER OUT capability, global PWM dimming via G pin, and automotive-grade ESD robustness (±2000 V HBM).
Technical Context
The TLC6C598CQDRQ1 integrates an 8-bit shift register feeding an 8-bit D-type storage register, with data latched on SRCK rising edge (shift) and RCK rising edge (storage). Output enable (G) controls transparency of storage register to output buffers, enabling global PWM dimming.
It features built-in thermal shutdown (trip ~175°C, hysteresis ~15°C), slow switching (tr = 210 ns, tf = 128 ns) for EMI reduction, and enhanced cascading via SER OUT clocked on SRCK falling edge-providing hold time margin for skewed clocks or distributed layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 3 V to 5.5 V logic supply - supports direct interface with 3.3 V or 5 V MCUs without level shifting |
| Output Voltage Rating | 40 V drain-source - withstands automotive load-dump transients up to 40 V |
| Sink Current per Channel | 50 mA continuous at VCC = 5 V - drives standard LEDs at 30 mA typical (per J-column design example) |
| Thermal Shutdown | 175°C trip point with 15°C hysteresis - automatically disables outputs during overtemperature, recovers at ~160°C |
| ESD Rating | ±2000 V HBM - meets AEC-Q100 Class H2 for robust handling in automotive manufacturing |
| Max Serial Clock | 10 MHz SRCK frequency - enables fast LED pattern updates (e.g., 8-bit update in ≤800 ns) |
| rDS(on) @ 20 mA | 6.7–9.6 Ω (VCC = 5 V, TA = 25°C, all channels ON) - determines power loss and thermal rise under load |
Pinout & Package
Available in 16-pin SOIC (D) package (9.90 mm × 3.91 mm) and 16-pin TSSOP (PW) package (5.00 mm × 4.40 mm); both are RoHS-compliant and automotive-qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 1) | Logic power supply | 3–5.5 V input for internal logic; requires local 0.1 µF ceramic bypass capacitor |
| SER_IN (Pin 2) | Serial data input | Accepts MCU SPI-like data; sampled on rising SRCK edge |
| DRAIN0–DRAIN7 (Pins 3–6, 11–14) | Low-side open-drain outputs | Sink current to LED cathodes; each rated 40 V / 50 mA; no external pull-ups needed |
| CLR (Pin 7) | Active-low register clear | Asynchronous reset - forces all shift and storage registers to zero when low |
| G (Pin 8) | Global output enable | Active-low - enables/disables all outputs simultaneously; supports hardware PWM dimming |
| GND (Pin 16) | Power ground | Reference for logic and output stages; must connect to low-impedance PCB ground plane |
| RCK (Pin 10) | Storage register clock | Rising edge transfers data from shift register to storage register; controls output update timing |
| SRCK (Pin 15) | Shift register clock | Rising edge shifts SER_IN into shift register; falling edge clocks SER_OUT for cascading |
| SER_OUT (Pin 9) | Serial data output | Feeds next device in daisy-chain; phase-inverted relative to SRCK for reliable inter-device timing |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation - suitable for under-hood and dashboard applications |
| Enhanced cascading architecture | SER_OUT timed on SRCK falling edge - eliminates setup/hold violations in multi-device chains |
| Thermal shutdown with hysteresis | Prevents latch-up or damage during sustained overload; automatic recovery avoids system reset |
| Slow output switching (tr/tf) | Reduces high-frequency EMI emissions - simplifies EMC compliance in sensitive automotive environments |
| All-registers-clear function | Single-pin (CLR) initialization - ensures deterministic state after power-up or fault recovery |
Applications
| Instrumentation Cluster | Tell-Tale Lamps |
|---|---|
Use Scenario: Driving segmented LED indicators (e.g., fuel level, oil pressure, brake warning) in automotive dashboards. IC Role / Device Role / Timing Role: Low-side LED sink driver with serial control - receives pattern data from MCU and updates all 8 segments synchronously via RCK. Use Value: Enables compact, noise-immune wiring via daisy-chained serial interface; 40 V rating handles battery transients without external clamping. | Use Scenario: Controlling status LEDs for door ajar, seatbelt, ABS, and airbag warnings in vehicle body control modules. IC Role / Device Role / Timing Role: Automotive-grade LED driver with global enable (G pin) - allows synchronized flashing or dimming across multiple lamps using PWM on G. Use Value: ±2000 V HBM ESD rating ensures reliability during assembly and service; thermal shutdown prevents failure during prolonged fault conditions. |
| LED Illumination Control | Automotive Rear Lighting |
Use Scenario: Managing interior map lights, dome lights, and ambient lighting with programmable brightness and sequencing. IC Role / Device Role / Timing Role: 8-channel current-sink interface - converts MCU GPIO-limited outputs into scalable LED drive with precise current control via external resistors. Use Value: rDS(on) < 10 Ω at 25°C minimizes power loss and board heating; slow switching reduces conducted EMI into shared power rails. | Use Scenario: Driving stop/tail/brake LED arrays in rear combination lamps where thermal management and transient immunity are critical. IC Role / Device Role / Timing Role: High-voltage tolerant LED sink driver - connects directly to 12 V/24 V battery-supplied LED strings with no external high-side switch required. Use Value: 40 V VDS rating survives ISO 7637-2 Pulse 5a (load dump up to 40 V); 50 mA per channel supports multi-LED parallel strings at 30 mA typical. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC6C5912QDRQ1 | 12-channel version with identical pinout extension; same VCC, VDS, and thermal specs | Supports larger LED arrays without adding devices; requires updated PCB layout for extra pins | Select when >8 channels needed and board space allows 20-pin SOIC/TSSOP footprint |
| TPS65552AQPWPRQ1 | 8-channel constant-current LED driver with integrated PWM generator; no shift register logic | Eliminates MCU bit-banging but requires separate PWM source; lacks SER_OUT cascading | Select when precise current matching and independent channel dimming are prioritized over serial daisy-chaining |
Compared with TLC6C5912QDRQ1 and TPS65552AQPWPRQ1, the TLC6C598CQDRQ1 offers optimal balance of serial interface simplicity, automotive qualification, and thermal robustness for cost-sensitive 8-LED applications requiring daisy-chain scalability.
Availability
TLC6C598CQDRQ1 is available at Aetrix Electronics and suitable for automotive instrumentation clusters, tell-tale lamp systems, and LED illumination control requiring stable component supply across extended temperature and long product lifecycles.
Supply support for TLC6C598CQDRQ1 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, embedded processing, and automotive ICs, with leadership in high-reliability power management and interface solutions.
The TLC6C598CQDRQ1 belongs to TI's automotive LED driver portfolio, designed specifically for serial-controlled, thermally robust, medium-voltage LED sinking in safety-critical vehicle subsystems.
FAQ
What is the maximum continuous sink current per channel for the TLC6C598CQDRQ1?
The TLC6C598CQDRQ1 supports 50 mA continuous sink current per channel when VCC = 5 V and ambient temperature is 25°C. At higher temperatures or lower VCC (e.g., 3.3 V), the effective current capability decreases due to increased rDS(on); the datasheet specifies 30 mA as a typical design value for stable operation across −40°C to 125°C.
Does the TLC6C598CQDRQ1 support daisy-chaining with other identical devices?
Yes, the TLC6C598CQDRQ1 supports robust daisy-chaining via its SER_OUT pin, which clocks data out on the falling edge of SRCK. This timing design provides additional hold time and mitigates skew-related setup violations when cascading multiple TLC6C598CQDRQ1 devices, making it ideal for large LED arrays in automotive clusters.
How does the thermal shutdown feature operate in the TLC6C598CQDRQ1?
The TLC6C598CQDRQ1 activates thermal shutdown when junction temperature reaches ~175°C (typical), forcing all outputs into high-impedance state. It remains disabled until temperature falls below ~160°C (15°C hysteresis), then resumes normal operation. This protects against sustained overload without requiring external circuitry or MCU intervention.
Can the TLC6C598CQDRQ1 drive LEDs directly from a 12 V or 24 V battery rail?
No - the TLC6C598CQDRQ1 is a low-side sink driver with logic-level VCC (3–5.5 V); its DRAIN pins tolerate up to 40 V, allowing connection to high-voltage LED anodes (e.g., 12 V/24 V battery), but the logic supply must be separately regulated to 3.3 V or 5 V. The LED current is set by external series resistors referenced to the battery rail.
What packaging options are available for the TLC6C598CQDRQ1?
The TLC6C598CQDRQ1 is offered in two automotive-qualified packages: 16-pin SOIC (D package, 9.90 mm × 3.91 mm) and 16-pin TSSOP (PW package, 5.00 mm × 4.40 mm). Both are RoHS-compliant, lead-free, and qualified per AEC-Q100 Grade 1 for −40°C to +125°C operation.
TLC6C598CQDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Power Switch
- Topology:
- Shift Register
- Internal Switch(s):
- Yes
- Number of Outputs:
- 8
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 40V
- Current - Output / Channel:
- 50mA
- Frequency:
- -
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
TLC6C598CQDRQ1 FAQ
1.How can I place an order for TLC6C598CQDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC6C598CQDRQ1 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 TLC6C598CQDRQ1 reliable?
The price and inventory of TLC6C598CQDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC6C598CQDRQ1 is usually 5 days.
3.What payment methods are accepted for TLC6C598CQDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC6C598CQDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC6C598CQDRQ1?
TLC6C598CQDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC6C598CQDRQ1 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 TLC6C598CQDRQ1?
For technical support, including TLC6C598CQDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC6C598CQDRQ1 requirements.
6.How does Aetrix verify that TLC6C598CQDRQ1 is sourced from the original manufacturer or authorized distributors?
All TLC6C598CQDRQ1 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 TLC6C598CQDRQ1 meets industry standards.
7.What is the process for return or replacement of TLC6C598CQDRQ1?
All TLC6C598CQDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLC6C598CQDRQ1, 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 TLC6C598CQDRQ1 part is unused and in its original packaging.
Return procedure for TLC6C598CQDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC6C598CQDRQ1 Tags
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BCR402RE6327HTSA1
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BCR420UE6433HTMA1
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LYT1604D-TL
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HV9910CLG-G
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CL2N8-G
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BCR421UW6-7
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BCR420UFD-7
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BCR421UFD-7
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