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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > LED Drivers

STMicroelectronics STP16DP05PTR

Name: STP16DP05PTR
Brand: STMicroelectronics
SKU: STP16DP05PTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STP16DP05PTR

Manufacturer:: STMicroelectronics

Category:: LED Drivers

Package:: 24-SSOP (0.154", 3.90mm Width)

Datasheet:: STP16DP05PTR.pdf

Description:: IC LED DRVR LINEAR 100MA 24QSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STP16DP05PTR from STMicroelectronics is a low-voltage 16-bit constant-current LED sink driver in QSOP-24 package, designed for LED panel displays. It delivers adjustable output current (5–100 mA per channel) via external resistor, supports 30 MHz serial data clocking, and integrates open/short LED error detection without additional pins. Used in indoor signage and architectural lighting systems where precise per-channel current control and fault visibility are required.

For engineers reviewing the STP16DP05PTR datasheet, STP16DP05PTR pinout, STP16DP05PTR application, or STP16DP05PTR equivalent, key selection criteria include its 16-channel sink architecture, dual-mode DM1/DM2 detection control logic, thermal resistance of 55 °C/W in QSOP-24, and compatibility with 3.3 V microcontrollers driving high-density LED arrays.

Technical Context

The device implements a 16-bit serial-in/parallel-out shift register feeding a D-type storage register, with sixteen matched current-regulated sinks. Output current is set by R_EXT (e.g., 970 Ω → 20 mA), and accuracy is ±1.5% between channels at 25 °C. Detection mode uses time-multiplexed OE/DM2 and LE/DM1 to identify open, short-to-GND, or short-to-V_O faults on all 16 outputs.

Timing is asynchronous: latch (LE/DM1) and output enable (OE/DM2) are level-sensitive, not edge-triggered. Propagation delays range from 8.5 ns (t_PHL3, V_DD = 5 V) to 77 ns (t_PLH2, V_DD = 3.3 V). Thermal protection activates at 170 °C, disabling only outputs-not logic-ensuring continued communication during overtemperature events.

Key Specifications

Parameter	Value and Actual Design Meaning
Output channels	16 independent constant-current sink outputs for LED anode-common configurations
Output current range	5–100 mA per channel, set precisely via external R_EXT (e.g., 3.9 kΩ → 5 mA)
Current accuracy	±1.5% typical matching between channels at 25 °C, enabling uniform LED brightness
Max clock frequency	30 MHz serial data rate supports fast LED refresh in high-resolution panels
Detection capability	Simultaneous open, short-to-GND, and short-to-V_O detection per output using internal comparator thresholds
Supply voltage	3.0–5.5 V operation enables direct interface with 3.3 V or 5 V microcontrollers
Thermal resistance	55 °C/W (QSOP-24) allows sustained 20 mA/channel operation without forced cooling

Pinout & Package

STP16DP05PTR is housed in a 24-pin QSOP package (3.91 mm × 8.66 mm × 1.62 mm) with gull-wing leads and no exposed pad. The package provides moderate thermal performance (R_thJA = 55 °C/W) and is optimized for surface-mount assembly in space-constrained LED display modules.

Pin/Terminal	Circuit Role	Design Meaning
1 GND	Ground reference	Common return path for all 16 output currents and logic circuitry
2 SDI	Serial data input	Accepts 3.3 V–compatible CMOS-level data stream for shift register loading
3 CLK	Clock input	Edge-triggered timing signal up to 30 MHz; controls data shifting into register
4 LE-DM1	Latch/detection mode 1	Level-sensitive control: high enables data latching; sequence with OE/DM2 enters detection mode
5–20 OUT0–OUT15	Constant-current sink outputs	Each drives LED cathodes with programmable current; rated for 20 V max output swing
21 OE-DM2	Output enable/detection mode 2	Active-low output control; combined with LE-DM1, initiates/open/short fault sampling
22 SDO	Serial data output	Shifts out 16-bit fault status or normal data; compatible with daisy-chained devices
23 R-EXT	Current programming input	Connects external resistor to set all 16 output currents simultaneously and identically
24 VDD	Power supply	3.0–5.5 V logic and output stage supply; decoupling capacitor required near pin

Key Features

Feature	Design Value
Integrated open/short LED detection	Eliminates need for external sense resistors or ADC monitoring; fault bits shifted out via SDO
Adjustable per-channel current	Single R_EXT sets identical 5–100 mA across all 16 outputs, simplifying BOM and calibration
3.3 V microcontroller compatibility	All inputs accept 3.3 V logic levels; no level-shifting required for modern MCU interfaces
Backward compatibility	Pin- and function-compatible with STP16C/L596, enabling drop-in upgrades in legacy designs
High-speed serial interface	30 MHz clock supports >480 kbps data throughput-sufficient for real-time 16×16 LED matrix updates

Applications

Indoor LED Signage

Architectural Lighting Panels

Use Scenario: Driving monochrome or RGB LED modules in retail store displays with dynamic content updates.

IC Role / Device Role / Timing Role: 16-bit constant-current sink managing individual LED segments; serial interface synchronizes with controller frame rate.

Use Value: Uniform brightness across 16 channels eliminates visible banding; detection mode flags failed LEDs before customer visibility.

Use Scenario: Controlling linear LED strips embedded in ceiling coves or façade elements requiring long-term reliability.

IC Role / Device Role / Timing Role: Current-regulated sink ensuring consistent lumen output despite V_F drift across temperature; OE/DM2 enables periodic health checks.

Use Value: ±1.5% channel matching maintains color consistency in multi-LED arrays; 20 V output swing supports 5–6 white LEDs in series per channel.

Industrial HMI Displays

Transportation Information Boards

Use Scenario: Operator interface panels in factory automation equipment with status indicators and warning lights.

IC Role / Device Role / Timing Role: Fault-tolerant LED driver providing self-diagnostic capability via SDO-shifted error bits.

Use Value: Detection mode identifies open-circuit LEDs during startup-preventing false "off" indications in safety-critical status displays.

Use Scenario: Outdoor bus/train arrival boards subject to wide temperature swings and vibration-induced solder fatigue.

IC Role / Device Role / Timing Role: Robust sink driver operating from −40 to +125 °C; thermal shutdown protects outputs during ambient overheating.

Use Value: Guaranteed 170 °C thermal cutoff prevents catastrophic failure; R_EXT-based current tuning compensates for LED aging over 5+ year deployments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit LED sink driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLC59283RTJR	Higher max current (120 mA), but no integrated open/short detection; requires external fault monitoring	Suitable for high-brightness outdoor signs where detection is handled at system level	Choose when absolute peak current >100 mA is required and board space permits external sensing
MAX6967AUG+T	Includes I²C interface and built-in PWM dimming; lacks serial-in/parallel-out architecture	Better for small-scale, low-pin-count designs with microcontroller I²C availability	Prefer when centralized I²C control and per-channel PWM are prioritized over daisy-chain scalability

Compared with TLC59283RTJR and MAX6967AUG+T, STP16DP05PTR uniquely balances high-speed serial daisy-chaining, integrated fault detection, and 3.3 V MCU compatibility in a single QSOP-24 package-making it optimal for cost-sensitive, high-channel-count LED display systems requiring autonomous diagnostics.

Availability

STP16DP05PTR is available at Aetrix Electronics and suitable for indoor LED signage, architectural lighting panels, industrial HMI displays, and transportation information boards requiring stable component supply and long-term production continuity.

Supply support for STP16DP05PTR 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 industrial, automotive, and consumer markets.

The STP16DP05 belongs to ST's LED driver product line, engineered specifically for energy-efficient, high-reliability LED panel applications where per-channel current precision, fault visibility, and 3.3 V system integration are critical design requirements.

FAQ

What is the maximum number of STP16DP05PTR devices that can be daisy-chained?

There is no hard limit imposed by the device itself-daisy-chaining depends on signal integrity and timing margins. With 30 MHz clocking, up to 8–10 devices can be cascaded while maintaining setup/hold times; longer chains require careful PCB layout, controlled impedance traces, and possibly reduced clock frequency to accommodate cumulative propagation delay.

How does the open/short detection mode affect normal LED driving operation?

Detection mode is transient and non-disruptive: it occupies only six clock cycles, after which the device resumes normal operation. During detection, all outputs are briefly driven to test conditions; LED illumination pauses momentarily but resumes immediately upon exit-no firmware reinitialization or data reload is needed.

Can STP16DP05PTR drive LEDs with forward voltages exceeding 5 V?

Yes-the device supports up to 20 V output voltage swing, enabling series connection of 5–6 standard white LEDs (3.2–3.6 V each) per channel. This is enabled by its high-voltage output stage and remains valid across the full −40 to +125 °C operating range.

Is external current-setting resistor (R_EXT) required for basic operation?

Yes-R_EXT is mandatory to define output current magnitude. Without it, output current defaults to zero. Standard values include 970 Ω for 20 mA, 3.9 kΩ for 5 mA, and 190 Ω for 100 mA; tolerance should be ≤1% to maintain channel matching within datasheet specifications.

STP16DP05PTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 24-SSOP (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

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:: Surface Mount

Supplier Device Package:: 24-QSOP

STP16DP05PTR FAQ

1.How can I place an order for STP16DP05PTR through Aetrix?

Please submit a Request for Quotation (RFQ) for STP16DP05PTR 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 STP16DP05PTR reliable?

The price and inventory of STP16DP05PTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP16DP05PTR is usually 5 days.

3.What payment methods are accepted for STP16DP05PTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP16DP05PTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STP16DP05PTR?

STP16DP05PTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STP16DP05PTR 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 STP16DP05PTR?

For technical support, including STP16DP05PTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP16DP05PTR requirements.

6.How does Aetrix verify that STP16DP05PTR is sourced from the original manufacturer or authorized distributors?

All STP16DP05PTR 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 STP16DP05PTR meets industry standards.

7.What is the process for return or replacement of STP16DP05PTR?

All STP16DP05PTR units undergo pre-shipment inspection (PSI). If there is an issue with STP16DP05PTR, 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 STP16DP05PTR part is unused and in its original packaging.

Return procedure for STP16DP05PTR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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