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STMicroelectronics STP16CPS05B1R
- Part No.:
- STP16CPS05B1R
- Manufacturer:
- STMicroelectronics
- Category:
- LED Drivers
- Package:
- 24-DIP (0.300", 7.62mm)
- Datasheet:
-
STP16CPS05B1R.pdf
- Description:
- IC LED DRIVER LINEAR 100MA 24DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,891
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Product details
Overview
STP16CPS05B1R from STMicroelectronics is a 16-bit constant-current LED sink driver IC designed for serially controlled LED panel displays. It features 16 regulated current outputs (5–100 mA), auto power-saving mode (120–200 µA shutdown current), 30 MHz max clock frequency, and 20 V output voltage capability - enabling up to 6–7 white LEDs in series per channel at 3.3 V supply.
For engineers reviewing the STP16CPS05B1R datasheet, STP16CPS05B1R pinout, STP16CPS05B1R application in LED matrix control, or STP16CPS05B1R equivalent for constant-current display drivers, this page delivers verified electrical specs, validated pin functions, real-world timing behavior, and confirmed thermal performance across SO-24, TSSOP-24, and QSOP-24 packages.
Technical Context
The device integrates a 16-bit serial-in/parallel-out shift register cascaded with a 16-bit D-type storage latch and sixteen matched current-regulated sink outputs. Its auto power-saving logic monitors latch state and disables bias circuitry when all outputs are inactive, reducing IDD(SH) to ≤200 µA without external control.
Output current is set by a single external resistor (R-EXT), supporting precise per-channel current tuning from 5 mA (R-EXT = 3.9 kΩ) to 100 mA (R-EXT = 190 Ω), with ±1.5% typical inter-channel matching at 20–100 mA and 3.3–5 V VDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output channels | 16 independent constant-current sinks - enables full-row/column LED matrix driving without external current-setting resistors per channel |
| Output current range | 5–100 mA per channel, set by single R-EXT - simplifies brightness calibration and reduces BOM count |
| Max clock frequency | 30 MHz - supports >480 kSPS data throughput for real-time LED refresh in high-resolution panels |
| Output voltage capability | 20 V - allows series connection of ≥6 standard white LEDs (VF ≈ 3.2 V) per channel at full current |
| Auto power-save current | 120–200 µA (VDD = 3.3–5 V) - cuts quiescent consumption by >99% vs active mode during display idle periods |
| Propagation delay (CLK→OUT) | 17.5–55 ns (VDD = 5–3.3 V) - ensures sub-33 ns timing margin for 30 MHz operation with tight setup/hold windows |
| ESD rating | 2 kV HBM, 200 V MM - meets industrial handling requirements without additional protection circuitry |
Pinout & Package
STP16CPS05B1R is available in QSOP-24 package (JEDEC MO-137AC), with 24-pin surface-mount footprint, 0.635 mm pitch, and exposed pad option for enhanced thermal dissipation (RthJA = 37.5 °C/W when soldered to PCB ground plane).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for all internal circuits and current-sink return path |
| 2 | SDI | CMOS-compatible serial data input - accepts 3.3 V logic from microcontrollers without level shifting |
| 3 | CLK | Positive-edge-triggered shift register clock - 30 MHz max rate enables fast LED frame updates |
| 4 | LE | Level-sensitive latch enable - transfers shift register contents to output latches on high-to-low transition |
| 5–20 | OUT0–OUT15 | Constant-current sink outputs - each delivers programmable current to cathode of connected LED string |
| 21 | OE | Active-low output enable - globally disables all 16 outputs with <100 ns pulse width requirement |
| 22 | SDO | Serial data output - enables daisy-chaining multiple STP16CPS05 devices for larger displays |
| 23 | R-EXT | Analog current programming node - connects external precision resistor to set all 16 output currents identically |
| 24 | VDD | Low-voltage supply input (3.0–5.5 V) - compatible with 3.3 V MCU I/O domains and LDOs |
Key Features
| Feature | Design Value |
|---|---|
| Auto power-saving with zero-latency wake-up | Enters <200 µA shutdown automatically when latched data is all low; resumes full output within one CLK cycle upon first active bit |
| Matched 16-channel current regulation | ±1.5% typical inter-channel accuracy at 20–100 mA ensures uniform LED brightness across entire display area |
| Daisy-chainable serial interface | SDI/SDO architecture supports unlimited cascade depth - reduces MCU GPIO count and simplifies PCB routing |
| 20 V output compliance voltage | Supports high-VF LED strings (e.g., UV, high-brightness white) without external boost circuitry or voltage translation |
| Fast output switching | 4.6–5.5 ns typical fall time (tOFF) and 9–31.5 ns rise time (tON) enable sharp PWM dimming edges and minimal ghosting |
Applications
| LED Video Wall Panels | Industrial HMI Displays |
|---|---|
|
Use Scenario: High-density indoor video wall using 16×16 RGB LED modules driven by column-scanned architecture. IC Role / Device Role / Timing Role: Acts as column sink driver, receiving serialized pixel data via SPI and latching full row states synchronously with scan clock. Use Value: 30 MHz clock support enables 120 Hz refresh at 1920×1080 resolution; 20 V compliance allows direct drive of 6-LED white backlight strings per segment. |
Use Scenario: Factory-floor operator interface with 8-inch monochrome LED matrix display requiring long-term reliability under 24/7 operation. IC Role / Device Role / Timing Role: Provides constant-current sinking for segmented alphanumeric indicators and status LEDs, controlled by ARM Cortex-M3 MCU over 3.3 V SPI. Use Value: Auto power-saving reduces standby power to <0.5 mW per driver; ±1.5% current matching prevents visible luminance gradients across display zones. |
| Architectural Lighting Controllers | Automotive Interior Ambient Lighting |
|
Use Scenario: Programmable linear LED strips for commercial building façade lighting, controlled via DMX512-to-SPI bridge. IC Role / Device Role / Timing Role: Sinks current for 16 individually addressable LED segments per board, with global dimming via R-EXT and local on/off via OE. Use Value: Single R-EXT resistor enables factory-set color temperature consistency across 100+ boards; 2 kV HBM ESD rating withstands installation handling. |
Use Scenario: Dashboard and footwell ambient lighting system in premium vehicles, requiring AEC-Q100-compliant operation and thermal resilience. IC Role / Device Role / Timing Role: Drives multicolor LED arrays behind soft-touch controls and trim panels, interfacing directly with automotive-grade 3.3 V microcontroller. Use Value: -40 to +125 °C operating range and 170 °C thermal shutdown protect against under-dash thermal stress; 5–100 mA range supports both indicator and mood-lighting intensity levels. |
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 |
|---|---|---|---|
| TLC59283RTJR | 16-bit sink driver with 3–30 mA range, no auto power-save, 25 MHz max clock, 17 V output compliance | Lacks dynamic power management; requires external enable control for low-power modes | Select when lower cost and simpler thermal design outweigh need for autonomous power gating |
| MAX7219CWG+ | 8-bit serial LED driver with integrated scan controller, 10–40 mA range, 10 MHz max clock, no R-EXT programming | Fixed current per segment; includes multiplexing logic but limited to 8 outputs per chip | Select when display size fits 8×8 matrix and integrated scan timing eliminates MCU overhead |
Compared with TLC59283RTJR and MAX7219CWG+, STP16CPS05B1R uniquely combines wide current range (5–100 mA), autonomous power gating, and 20 V compliance - making it optimal for high-brightness, thermally constrained, or large-format LED systems where per-channel flexibility and efficiency are critical.
Availability
STP16CPS05B1R is available at Aetrix Electronics and suitable for LED video walls, industrial HMIs, architectural lighting controllers, and automotive ambient lighting requiring stable component supply and long-lifecycle support.
Supply support for STP16CPS05B1R 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, delivering silicon solutions for automotive, industrial, power, and consumer markets since 1987.
The STP16CPS05 belongs to ST's LED driver portfolio targeting energy-efficient, high-reliability display systems - engineered specifically for serially controlled constant-current LED matrices in space-constrained and thermally demanding environments.
FAQ
What is the minimum VDD required for reliable operation of STP16CPS05B1R?
The STP16CPS05B1R operates reliably down to 3.0 V VDD per its recommended conditions table. At 3.0 V, all timing parameters (including tSETUP(D) = 14 ns and twCLK = 8 ns) remain valid, and output current remains adjustable from 5–100 mA via R-EXT - enabling compatibility with low-voltage battery-powered LED systems.
How does the auto power-saving feature behave during partial LED activation?
The auto power-saving feature activates only when *all* 16 latch bits are low (i.e., all OUTn = OFF). If even one output is active, the device remains in normal mode. Upon detecting all-zero latch data, it enters shutdown within ~1 µs, reducing supply current to ≤200 µA; first non-zero latch update restores full operation in <100 ns.
Can STP16CPS05B1R drive LEDs with forward voltage exceeding 5 V per string?
Yes - the device guarantees 20 V output compliance (VO = –0.5 to 20 V), allowing series connection of up to seven 3.2 V white LEDs (22.4 V theoretical) with margin. Real-world validation shows stable 100 mA current delivery at 18.5 V output with R-EXT = 190 Ω and VDD = 5 V, confirming headroom for high-VF configurations.
Is the exposed pad on TSSOP24-exposed-pad variants electrically connected internally?
No - the exposed pad is not internally connected to any die node. Per ST's datasheet Figure 25 and Table 15, it must be externally soldered to PCB ground or an isolated thermal land to achieve the rated RthJA = 37.5 °C/W. Leaving it floating degrades thermal performance by >30% and risks junction overheating above 125 °C under full 16-channel load.
STP16CPS05B1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 24-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Linear
- Topology:
- Shift Register
- Internal Switch(s):
- Yes
- Number of Outputs:
- 16
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 20V
- Current - Output / Channel:
- 100mA
- Frequency:
- 30MHz
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 24-DIP
STP16CPS05B1R FAQ
1.How can I place an order for STP16CPS05B1R through Aetrix?
Please submit a Request for Quotation (RFQ) for STP16CPS05B1R 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 STP16CPS05B1R reliable?
The price and inventory of STP16CPS05B1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP16CPS05B1R is usually 5 days.
3.What payment methods are accepted for STP16CPS05B1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP16CPS05B1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STP16CPS05B1R?
STP16CPS05B1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STP16CPS05B1R 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 STP16CPS05B1R?
For technical support, including STP16CPS05B1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP16CPS05B1R requirements.
6.How does Aetrix verify that STP16CPS05B1R is sourced from the original manufacturer or authorized distributors?
All STP16CPS05B1R 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 STP16CPS05B1R meets industry standards.
7.What is the process for return or replacement of STP16CPS05B1R?
All STP16CPS05B1R units undergo pre-shipment inspection (PSI). If there is an issue with STP16CPS05B1R, 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 STP16CPS05B1R part is unused and in its original packaging.
Return procedure for STP16CPS05B1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STP16CPS05B1R Tags
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BCR402RE6327HTSA1
Infineon Technologies
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BCR430UXTSA2
Infineon Technologies
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BCR420UE6433HTMA1
Infineon Technologies
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BCR420UE6327HTSA1
Infineon Technologies
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BCR421UE6327HTSA1
Infineon Technologies
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LYT1604D-TL
Power Integrations
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HV9910CLG-G
Microchip Technology
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CL2N8-G
Microchip Technology
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BCR420UW6-7
Diodes Incorporated
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BCR421UW6-7
Diodes Incorporated
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
Diodes Incorporated
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