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STMicroelectronics STP04CM05MTR
- Part No.:
- STP04CM05MTR
- Manufacturer:
- STMicroelectronics
- Category:
- LED Drivers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
STP04CM05MTR.pdf
- Description:
- IC LED DRIVER LINEAR 400MA 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,294
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Product details
Overview
STP04CM05MTR from STMicroelectronics is a 4-channel constant-current LED sink driver with integrated 4-bit serial-in/parallel-out shift register and storage latch, designed for high-brightness power-LED arrays. It delivers 80–400 mA per channel with ±1% current matching between outputs, supports 30 MHz clock input, and operates up to 20 V output voltage - enabling series connection of multiple high-VF LEDs in signage, automotive lighting, and industrial displays.
For engineers reviewing the STP04CM05MTR datasheet, STP04CM05MTR pinout, STP04CM05MTR application, or STP04CM05MTR equivalent, key selection criteria include adjustable current via REXT, thermal shutdown (TSD), under-voltage lockout (UVLO), and compatibility with 3.3 V logic-level microcontrollers driving cascaded LED strings.
Technical Context
The STP04CM05MTR integrates a synchronous 4-bit shift register followed by a D-type latch, decoupling data loading from output update timing. Its four independent current-regulated sinks use external REXT to set full-scale current, with internal reference stability ensuring ±6% inter-device accuracy across temperature and supply variations.
Output enable (/OE) and latch enable (LE) are level-sensitive control inputs, not edge-triggered - allowing asynchronous blanking and static data hold. Propagation delays (e.g., tPLH2 = 140–260 ns at VDD = 5 V) support reliable high-speed daisy-chaining in multi-driver systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output channels | 4 independent constant-current sinks, each programmable 80–400 mA via single REXT |
| Max output voltage | 20 V - supports ≥6 white LEDs (VF ≈ 3.2 V) in series per channel |
| Logic supply range | 3.3 V to 5.5 V - direct interface with 3.3 V MCUs without level-shifting |
| Max clock frequency | 30 MHz - enables >120 Mbps serial data throughput in cascaded configurations |
| Thermal protection | Automatic output disable above junction temperature limit - prevents LED overcurrent during thermal overload |
| ESD rating | 2.5 kV HBM - sufficient for handling in standard assembly environments without special precautions |
| Operating temp | −40 °C to +125 °C - qualified for under-hood automotive and industrial ambient conditions |
Pinout & Package
STP04CM05MTR is housed in a TSSOP16 exposed pad package (JEDEC MO-153AC), where the exposed thermal pad must be soldered to a PCB copper pour for effective heat dissipation (RthJA = 37.5 °C/W on multilayer JEDEC board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 GND | Ground reference | Power and signal return; connects to thermal pad for low-impedance heat path |
| 3 SDI | Serial data input | CMOS-compatible input accepting 3.3 V logic; feeds shift register LSB-first |
| 4 CLK | Clock input | Edge-triggered rising-edge clock; max 30 MHz; controls shift register advancement |
| 5 LE | Latch enable | Level-sensitive (high-active); transfers shift register contents to output latches |
| 6–7, 10–11 OUT0–OUT3 | Constant-current sink outputs | Each drives LED cathode to GND; 20 V compliance allows high-series-string operation |
| 13 /OE | Output enable (active low) | Global blanking control; pulls all outputs OFF when high; no propagation delay dependency on CLK |
| 14 SDO | Serial data output | Daisy-chain output; delayed version of SDI with tPLH ≤ 25 ns (VDD = 5 V) |
| 15 R-EXT | Current programming node | Connects external resistor (980 Ω–190 kΩ) to set full-scale output current |
| 16 VDD | Supply voltage | 3.3–5.5 V logic and bias supply; powers internal logic and current references |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable current per channel | Single REXT sets identical 80–400 mA across all 4 outputs - simplifies BOM and layout vs. per-channel resistors |
| High-speed cascade capability | 30 MHz clock + <25 ns SDO propagation enables >100 drivers in series without timing bottleneck |
| Robust thermal management | Integrated TSD disables outputs before junction exceeds safe limit - protects LEDs and IC during transient overloads |
| Logic-level compatibility | VIH = 0.7×VDD allows direct drive from 3.3 V microcontrollers without level translators |
| Supply monitoring | UVLO holds outputs OFF until VDD stabilizes above threshold - prevents erratic behavior during power ramp-up |
Applications
| Architectural LED Signage | Automotive Exterior Lighting |
|---|---|
|
Use Scenario: High-density pixelated LED panels for dynamic outdoor advertising with uniform brightness and color consistency. IC Role / Device Role / Timing Role: Constant-current sink driver controlling individual RGB LED modules; synchronized via SPI-like serial interface and global latch/enable signals. Use Value: ±1% current matching between channels ensures minimal luminance variation across thousands of pixels, critical for grayscale fidelity. |
Use Scenario: Tail lamp and daytime running light (DRL) modules requiring AEC-Q100-compliant thermal resilience and PWM dimming. IC Role / Device Role / Timing Role: High-side referenced LED driver (with external high-side switch) managing multiple parallel LED strings; controlled via vehicle CAN/LIN gateway MCU. Use Value: 125 °C operating range and TSD allow direct mounting near heat-generating LED arrays without derating. |
| Industrial Machine Vision Lighting | Stage & Studio LED Fixtures |
|
Use Scenario: Stroboscopic high-intensity illumination for high-speed inspection systems requiring precise pulse-width control. IC Role / Device Role / Timing Role: Fast-switching current sink enabling sub-microsecond ON/OFF transitions; driven by FPGA-generated clock and latch signals. Use Value: tOFF ≤ 18 ns (VDD = 5 V) supports <100 ns minimum pulse widths - essential for motion-freeze imaging. |
Use Scenario: Programmable color-mixing fixtures using high-power white/amber/RGB LEDs with analog dimming and digital addressing. IC Role / Device Role / Timing Role: Channel-isolated current source enabling independent intensity scaling per LED type; configured via daisy-chained serial bus. Use Value: 20 V output compliance permits mixed-VF LED strings (e.g., 3× white + 2× red) on same driver channel without voltage margin loss. |
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 |
|---|---|---|---|
| TLC59283PWPR | 16-channel, 15–120 mA/channel, fixed 5 V supply only, no thermal shutdown | Better channel count but lower max current and no TSD - unsuitable for >100 mA continuous thermal loads | Select when higher channel density outweighs need for thermal protection and wide current range |
| AL8863SP-13 | Single-channel, 10–1500 mA, buck topology, analog/digital dimming, no shift register | Higher current capability but requires external inductor and lacks serial interface - increases BOM and layout complexity | Select for high-efficiency single-string applications where discrete control and efficiency > integration |
Compared with TLC59283PWPR and AL8863SP-13, STP04CM05MTR uniquely balances 4-channel integration, 400 mA per channel, built-in thermal safety, and 30 MHz daisy-chain speed - making it optimal for compact, thermally constrained, multi-string LED systems requiring deterministic timing.
Availability
STP04CM05MTR is available at Aetrix Electronics and suitable for architectural signage, automotive exterior lighting, and industrial machine vision systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for STP04CM05MTR 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, specializing in power management, analog, MEMS, and microcontroller technologies for automotive, industrial, and consumer markets.
The STP04CM05MTR belongs to ST's Power-LED Driver family, engineered specifically for high-reliability, high-current LED array control in thermally demanding environments - emphasizing precision current matching, robust fault protection, and seamless serial scalability.
FAQ
What is the minimum REXT value required to achieve 400 mA output current?
Per Figure 13 in the datasheet, 400 mA corresponds to REXT ≈ 190 Ω. Using a 190 Ω ±1% resistor yields typical output current of 400 mA with ±1.5% error between channels. Lower resistance increases current but risks exceeding absolute maximum ratings - do not use REXT < 180 Ω.
Can STP04CM05MTR drive LEDs with forward voltage >20 V?
No. The device's absolute maximum output voltage is 20 V (Table 3), and recommended operating VO is limited to 19 V (Table 5). Exceeding this risks permanent damage. For higher-VF strings, use external high-side switches or boost converters upstream of the STP04CM05MTR.
How does the latch (LE) and output enable (/OE) interact during operation?
LE is level-sensitive and transfers shift register data to output latches when high; /OE is also level-sensitive and enables/disables all outputs independently. When /OE is high, outputs are forced OFF regardless of latch state. Both functions operate asynchronously - neither depends on CLK edges, enabling precise blanking and static display hold.
Is the exposed thermal pad electrically connected internally?
No. The exposed pad is internally isolated from all die connections and must be soldered to a dedicated PCB copper pour. It may be left floating or tied to GND per layout requirements - ST recommends grounding for lowest thermal resistance and EMI reduction, as confirmed in Section 2.1 of the datasheet.
STP04CM05MTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 14-SO
STP04CM05MTR FAQ
1.How can I place an order for STP04CM05MTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STP04CM05MTR 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 STP04CM05MTR reliable?
The price and inventory of STP04CM05MTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP04CM05MTR is usually 5 days.
3.What payment methods are accepted for STP04CM05MTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP04CM05MTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STP04CM05MTR?
STP04CM05MTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STP04CM05MTR 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 STP04CM05MTR?
For technical support, including STP04CM05MTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP04CM05MTR requirements.
6.How does Aetrix verify that STP04CM05MTR is sourced from the original manufacturer or authorized distributors?
All STP04CM05MTR 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 STP04CM05MTR meets industry standards.
7.What is the process for return or replacement of STP04CM05MTR?
All STP04CM05MTR units undergo pre-shipment inspection (PSI). If there is an issue with STP04CM05MTR, 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 STP04CM05MTR part is unused and in its original packaging.
Return procedure for STP04CM05MTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STP04CM05MTR Tags
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BCR402RE6327HTSA1
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BCR430UXTSA2
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BCR420UE6433HTMA1
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BCR420UE6327HTSA1
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BCR421UE6327HTSA1
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LYT1604D-TL
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HV9910CLG-G
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CL2N8-G
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BCR420UW6-7
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BCR421UW6-7
Diodes Incorporated
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
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