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STMicroelectronics STP04CM05XTTR
- Part No.:
- STP04CM05XTTR
- Manufacturer:
- STMicroelectronics
- Category:
- LED Drivers
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
STP04CM05XTTR.pdf
- Description:
- IC LED DRVR LIN 400MA 16HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,881
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Product details
Overview
STP04CM05XTTR from STMicroelectronics is a 4-channel constant-current LED sink driver with integrated 4-bit serial-in/parallel-out shift register, designed for high-brightness power-LED arrays. It delivers 80–400 mA per channel, supports 20 V output swing, operates from 3.3 V or 5 V logic, and features thermal shutdown, UVLO, and POR - used in outdoor signage, architectural lighting, and industrial status displays.
For engineers reviewing the STP04CM05XTTR datasheet, STP04CM05XTTR pinout, STP04CM05XTTR application, or STP04CM05XTTR equivalent, key selection criteria include adjustable current via REXT, 30 MHz clock tolerance, TSSOP16 exposed-pad thermal performance, latch/enable timing margins, and cascade-compatible serial data chaining.
Technical Context
The STP04CM05XTTR integrates a 4-bit shift register feeding a D-type storage latch, enabling synchronous serial loading and parallel output latching. Its four independent current-regulated sinks use external REXT to set identical per-channel current across 80–400 mA, with ±1% matching between outputs and ±6% unit-to-unit accuracy.
Level-sensitive LE and active-low OE control allow asynchronous latching and global output blanking without clock synchronization. Propagation delays (e.g., tPLH2 = 140–260 ns at VDD = 5 V) and fast output switching (tOFF ≤ 18 ns) support high-speed multiplexed LED driving in cascaded configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output channels | 4 independent constant-current sinks, each programmable via single REXT |
| Output current range | 80–400 mA per channel; set by REXT = 190 Ω–190 kΩ |
| Output voltage capability | Up to 20 V headroom enables series strings of ≥6 white LEDs (VF ≈ 3.2 V) |
| Max clock frequency | 30 MHz - supports >120 kSPS serial update rate for 4-bit data |
| Logic supply voltage | 3.3 V or 5 V compatible; VIH ≥ 0.7×VDD, VIL ≤ 0.3×VDD |
| Thermal protection | Automatic output disable above junction temperature limit; self-reset on cooldown |
| Operating temperature | −40 °C to +125 °C ambient - validated for automotive exterior lighting environments |
Pinout & Package
TSSOP16 exposed pad package with thermal pad electrically isolated or connected to GND; 5.0 mm × 6.4 mm footprint, 0.65 mm pitch, JEDEC-standard multi-layer board RthJA = 37.5 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 GND | Ground reference | Power and signal return; exposed pad must be soldered for thermal performance |
| 3 SDI | Serial data input | CMOS-compatible input accepting 3.3 V/5 V logic; feeds shift register MSB-first |
| 4 CLK | Shift clock input | Rising-edge triggered; 30 MHz max; tr/tf ≤ 5 μs required for reliable cascading |
| 5 LE | Latch enable | Level-sensitive; high → transfers shift register contents to output latch |
| 6–7, 10–11 OUT0–OUT3 | Constant-current sink outputs | Each drives LED cathode; 20 V max VDS; current accuracy ±1% between channels |
| 8, 9, 12 N.C. | No connection | Internally unconnected; must remain floating or grounded per layout guidelines |
| 13 OE | Output enable (active low) | Global blanking: high → all outputs off regardless of latch state |
| 14 SDO | Serial data output | Daisy-chain capable; outputs shifted-out bit after 4 CLK cycles |
| 15 R-EXT | Current-setting resistor terminal | Connects to external precision resistor; sets all 4 channels identically |
| 16 VDD | Positive supply | 3.3 V or 5 V nominal; absolute max 7 V; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Single-resistor current programming | One external REXT sets identical 80–400 mA across all 4 channels with ±1% matching |
| Cascade-ready serial interface | SDI/SDO supports daisy-chaining multiple drivers without additional logic or timing overhead |
| Asynchronous latch & blanking | LE and OE operate independently of CLK edge, enabling precise frame-level LED control |
| Robust thermal management | Thermal shutdown activates before junction exceeds safe limit; auto-recovery avoids system reset |
| High-voltage LED string support | 20 V output compliance allows ≥6-series white LEDs at 350 mA without external boost |
Applications
| Outdoor Full-Color Signage | Industrial Panel Status Indicators |
|---|---|
|
Use Scenario: Large-format RGB LED displays exposed to sunlight and wide ambient temperature swings. IC Role / Device Role / Timing Role: Constant-current sink driver controlling red/green/blue LED strings; receives PWM-modulated serial data at 30 MHz for flicker-free refresh. Use Value: 20 V output headroom supports 6–7 series LEDs per channel; ±1% current matching ensures color consistency across panels. |
Use Scenario: Factory HMI panels requiring high-intensity, long-life status indicators under vibration and EMI. IC Role / Device Role / Timing Role: High-reliability LED driver with thermal shutdown and UVLO, interfacing directly to 3.3 V microcontroller GPIOs. Use Value: −40 °C to +125 °C operation eliminates derating; exposed pad improves MTBF by lowering junction temperature 15 °C vs standard TSSOP. |
| Architectural Accent Lighting | Automotive Exterior Lighting |
|
Use Scenario: Linear LED strips for building façade illumination with dimming and color tuning. IC Role / Device Role / Timing Role: Serially controlled current sink enabling zone-based brightness adjustment via microcontroller SPI-like interface. Use Value: Adjustable current (80–400 mA) supports multiple LED types; 30 MHz clock allows real-time dimming updates without visible artifacts. |
Use Scenario: Tail lamp modules requiring AEC-Q100-compliant LED drive with fault reporting. IC Role / Device Role / Timing Role: Power-LED driver with built-in TSD and UVLO; OE pin enables fail-safe shutdown during CAN bus fault conditions. Use Value: Thermal shutdown prevents LED thermal runaway; 2.5 kV HBM ESD rating meets automotive handling requirements. |
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 |
|---|---|---|---|
| TLC59282RTJR | 16-channel, 12-bit PWM dimming; no thermal shutdown; 17 V max output | Requires external MCU PWM generation; better for grayscale control, weaker thermal safety | Select when fine-grained PWM dimming is prioritized over fault protection and high-VF LED support |
| AL8863SP-13 | Single-channel, 1.5 A max; analog/digital dimming; 40 V max output; no shift register | Needs discrete logic for multi-channel sync; superior for high-current single-string designs | Select when driving single high-power LED strings (>500 mA) with minimal BOM count |
Compared with TLC59282RTJR and AL8863SP-13, STP04CM05XTTR uniquely balances 4-channel integration, 20 V compliance, embedded thermal safety, and 30 MHz serial throughput - making it optimal for compact, thermally constrained, multi-LED systems where reliability and simplicity outweigh ultra-fine dimming resolution.
Availability
STP04CM05XTTR is available at Aetrix Electronics and suitable for outdoor signage, industrial HMIs, architectural lighting, and automotive tail lamps requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for STP04CM05XTTR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
The STP04CM05XTTR belongs to ST's Power-LED Driver family, engineered specifically for robust, thermally efficient constant-current driving of high-brightness LEDs in space-constrained, high-reliability applications.
FAQ
What is the minimum REXT value to achieve 400 mA output current?
The datasheet specifies REXT = 190 Ω for 400 mA (IOL2 = 376–424 mA at VO = 1.2 V). Using 1% tolerance metal-film resistor ensures current accuracy within ±1.5%. Lower resistance risks exceeding absolute max ratings and invalidates current regulation linearity.
Can STP04CM05XTTR drive LEDs with forward voltage >20 V?
No. The device guarantees 20 V maximum output voltage (VO); exceeding this risks immediate failure. For 24 V LED strings, a boost converter must precede the driver, or a higher-voltage alternative like the STP16CP05 must be selected.
How does the exposed thermal pad affect PCB layout?
The exposed pad must be soldered to a dedicated copper pour (≥200 mm²) connected to GND or left floating per ST's ECOPACK® guidelines. Thermal vias (≥6×0.3 mm) beneath the pad reduce RthJA by ~30%, critical for maintaining <125 °C junction temperature at 400 mA/channel.
Is STP04CM05XTTR AEC-Q100 qualified?
No. While it operates across −40 °C to +125 °C and includes UVLO/TSD, ST does not list STP04CM05XTTR in its AEC-Q100 qualified portfolio. For automotive lighting, ST recommends the AEC-Q100–qualified STP16CP05 or similar qualified variants.
STP04CM05XTTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Linear
- Topology:
- Shift Register
- Internal Switch(s):
- Yes
- Number of Outputs:
- 4
- Voltage - Supply (Min):
- 3.3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 19V
- Current - Output / Channel:
- 400mA
- Frequency:
- 30MHz
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-HTSSOP
STP04CM05XTTR FAQ
1.How can I place an order for STP04CM05XTTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STP04CM05XTTR 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 STP04CM05XTTR reliable?
The price and inventory of STP04CM05XTTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP04CM05XTTR is usually 5 days.
3.What payment methods are accepted for STP04CM05XTTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP04CM05XTTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STP04CM05XTTR?
STP04CM05XTTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STP04CM05XTTR 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 STP04CM05XTTR?
For technical support, including STP04CM05XTTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP04CM05XTTR requirements.
6.How does Aetrix verify that STP04CM05XTTR is sourced from the original manufacturer or authorized distributors?
All STP04CM05XTTR 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 STP04CM05XTTR meets industry standards.
7.What is the process for return or replacement of STP04CM05XTTR?
All STP04CM05XTTR units undergo pre-shipment inspection (PSI). If there is an issue with STP04CM05XTTR, 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 STP04CM05XTTR part is unused and in its original packaging.
Return procedure for STP04CM05XTTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STP04CM05XTTR Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
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