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

STMicroelectronics STP16DPS05PTR

Name: STP16DPS05PTR
Brand: STMicroelectronics
SKU: STP16DPS05PTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STP16DPS05PTR

Manufacturer:: STMicroelectronics

Category:: LED Drivers

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

Datasheet:: STP16DPS05PTR.pdf

Description:: IC LED DRVR LINEAR 100MA 24QSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STP16DPS05PTR from STMicroelectronics is a 16-bit constant-current LED sink driver in QSOP-24 package, designed for LED panel displays with serial-in/parallel-out shift register architecture, 20–100 mA per channel output current, open/short LED error detection, and 30 MHz clock support. It operates from 3–5.5 V supply and delivers up to 20 V output driving capability for multi-LED series strings.

For engineers reviewing the STP16DPS05PTR datasheet, STP16DPS05PTR pinout, STP16DPS05PTR application, or STP16DPS05PTR equivalent, key selection criteria include output current adjustability via R_EXT, dual-mode functionality (normal drive + error detection), thermal performance of QSOP-24, and compatibility with 3.3 V microcontrollers in high-density LED signage systems.

Technical Context

The STP16DPS05PTR integrates a 16-bit serial-in, parallel-out shift register feeding a 16-bit D-type storage latch, followed by sixteen matched regulated current sinks. Its detection mode uses dedicated logic sequencing on LE/DM1 and OE/DM2 pins-no additional pins required-to identify open, short-to-GND, or short-to-V_O faults across all 16 outputs.

Current regulation is set externally via R_EXT, enabling precise 5–100 mA per channel with ±1.5% typical inter-channel accuracy at 25 °C. Auto power-saving reduces quiescent current to 163 µA when latches remain static for >16 clock cycles, resuming full operation within 1.053 µs after new data arrival.

Key Specifications

Parameter	Value and Actual Design Meaning
Output channels	16 independent constant-current sink outputs for LED anode-common configurations
Output current range	20–100 mA per channel, adjustable via external R_EXT resistor (e.g., 970 Ω → 20 mA; 190 Ω → 100 mA)
Max output voltage	20 V, enabling up to 6 white LEDs (3.2 V each) in series per channel
Clock frequency	30 MHz max, supporting high-speed LED refresh in video-rate signage and dynamic displays
Supply voltage	3.0–5.5 V, compatible with both 3.3 V and 5 V microcontroller I/O domains
Error detection	Detects open-circuit, short-to-GND, and short-to-V_O conditions on all 16 outputs using internal sensing without extra pins
Package	QSOP-24 (4.01 mm × 8.76 mm × 1.73 mm), RoHS-compliant, ECOPACK®2 rated

Pinout & Package

STP16DPS05PTR is housed in a 24-pin QSOP package with gull-wing leads and exposed thermal pad (electrically isolated or grounded per layout). The package offers 55 °C/W junction-to-ambient thermal resistance and supports reflow soldering per JEDEC J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
1 GND	Ground reference	Primary return path for all output currents and internal logic; must be low-impedance connection
2 SDI	Serial data input	Accepts 3.3 V–compatible CMOS-level data stream for cascaded daisy-chain configuration
3 CLK	Master clock input	Edge-triggered 30 MHz clock synchronizing shift register loading and data propagation
4 LE/DM1	Latch enable / detect mode 1	Level-sensitive control: high = latch new data; low = hold; dual-function entry trigger for error detection
5–20 OUT0–OUT15	Constant-current sink outputs	16 individually controlled current sources; each drives LED cathodes with programmable current
21 OE/DM2	Output enable / detect mode 2	Active-low output control; also serves as secondary trigger for entering/exiting detection mode
22 SDO	Serial data output	Shifts out 16-bit error status or latched data; enables daisy-chaining and fault reporting to MCU
23 R-EXT	Current setting reference	Connects external resistor to set all 16 output currents simultaneously with ±1.5% matching
24 VDD	Power supply	3.0–5.5 V supply powering logic and current sinks; decoupling capacitor required near pin

Key Features

Feature	Design Value
Adjustable constant current	20–100 mA per channel via single R_EXT, eliminating per-channel trimming and reducing BOM count
Integrated open/short detection	Three-condition fault detection (open, short-to-GND, short-to-V_O) reported serially without added pins or external circuitry
Auto power-saving mode	Reduces IDD from 6 mA to 163 µA after 16 idle clock cycles, extending system-level energy efficiency in static display segments
3.3 V microcontroller interface	VIH = 0.7×VDD and VIL = 0.3×VDD ensure robust logic-level compatibility with modern low-voltage MCUs
High-speed 30 MHz clock	Enables full 16-bit update in <533 ns, supporting >1.8 kHz frame rates for flicker-free LED video walls

Applications

Indoor LED Video Walls

Automotive Interior Lighting Control

Use Scenario: High-resolution indoor LED displays requiring uniform brightness across thousands of pixels with real-time fault monitoring.

IC Role / Device Role / Timing Role: Constant-current sink driver managing 16 LED strings per IC; serial cascade enables compact controller-to-panel wiring.

Use Value: ±1.5% inter-channel current matching ensures pixel-to-pixel luminance consistency; open/short detection prevents localized blackouts during operation.

Use Scenario: Multi-zone ambient lighting in vehicle cabins with dimmable RGBW LED clusters and diagnostic readiness.

IC Role / Device Role / Timing Role: LED current controller with integrated fault reporting; OE/DM2 pin enables PWM dimming down to 0% intensity.

Use Value: 20–100 mA range supports diverse LED types (e.g., 20 mA indicator LEDs, 100 mA high-brightness strips); detection mode satisfies automotive functional safety diagnostics.

Retail Digital Signage

Industrial Panel Meters & HMI Displays

Use Scenario: Energy-conscious retail signage operating 16+ hours/day with thermal constraints and remote maintenance requirements.

IC Role / Device Role / Timing Role: Primary LED driver with auto power-saving; SDO reports faults over same serial bus used for display data.

Use Value: 55 °C/W QSOP thermal resistance maintains safe junction temperature at 125 °C ambient; detection mode enables predictive maintenance alerts before LED failure.

Use Scenario: Industrial HMIs requiring reliable LED indicators under wide temperature (-40 to +125 °C) and ESD-prone environments.

IC Role / Device Role / Timing Role: Robust LED sink with 2 kV HBM ESD protection; R-EXT-based current tuning simplifies calibration across production batches.

Use Value: Guaranteed 20 V output swing accommodates aging LED forward voltage drift; ±5% inter-IC current accuracy ensures consistent indicator brightness across multiple PCBs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLC59283RTJR	16-bit constant-current sink with 3–5.5 V supply, but no built-in open/short detection; requires external sense resistors and ADC for fault monitoring	Lacks integrated diagnostics; suitable only where fault reporting is handled at system level, not per-driver	Select when cost sensitivity outweighs need for autonomous fault detection and board space permits external sensing circuitry
IS31FL3731-QFLS4-TR	I²C interface, 28×28 matrix support, integrated PWM dimming, but fixed 40 mA per channel and no R_EXT adjustment	Designed for small-format character/segment displays; lacks 20 V output headroom and serial cascade capability	Prefer for compact I²C-based UIs with uniform LED types; avoid for high-voltage or high-current signage applications

Compared with TLC59283RTJR and IS31FL3731-QFLS4-TR, the STP16DPS05PTR uniquely combines programmable current (20–100 mA), 20 V output swing, integrated diagnostics, and 30 MHz serial throughput-making it optimal for scalable, fault-aware LED display systems where pin efficiency and thermal performance are critical.

Availability

STP16DPS05PTR is available at Aetrix Electronics and suitable for indoor LED video walls, automotive interior lighting control, and retail digital signage requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for STP16DPS05PTR 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 innovative solutions across automotive, industrial, power, and analog markets with strong IP and manufacturing scale.

The STP16DPS05PTR belongs to ST's LED driver portfolio targeting high-reliability display applications; it was engineered specifically to simplify LED panel design through integrated diagnostics, wide current range, and thermal-efficient packaging.

FAQ

What is the minimum recommended R_EXT value for STP16DPS05PTR, and what output current does it produce?

The minimum recommended R_EXT is 190 Ω, which sets the output current to 96–104 mA per channel at 25 °C (typical 100 mA). This value is validated per Table 7 in the datasheet and ensures stable regulation without exceeding absolute maximum ratings. Using lower resistance risks exceeding the 100 mA per-channel limit and may degrade current matching accuracy or thermal margin.

How does the STP16DPS05PTR enter and exit detection mode, and what sequence must be followed?

Entry requires five specific CLK cycles with OE/DM2 and LE/DM1 states: H→L→H→H→H and L→L→L→H→L respectively. Exit requires another five-cycle sequence: H→L→H→H→H for OE/DM2 and L→L→L→L→L for LE/DM1. Consecutive identical sequences are invalid; detection mode must always be followed by resume mode to restore normal operation.

Can STP16DPS05PTR drive LEDs with forward voltages exceeding 5 V, and what limits this capability?

Yes-the device supports up to 20 V output voltage swing, allowing series chains of up to six standard white LEDs (3.2 V each) or eight red LEDs (2.2 V each). This capability is limited only by the VO absolute maximum rating (20 V) and the dropout voltage across the internal current source, which remains below 0.3 V at 20 mA and rises to ~1.3 V at 100 mA per channel.

Does STP16DPS05PTR support daisy-chaining, and how is data integrity maintained across multiple devices?

Yes-STP16DPS05PTR supports unlimited daisy-chaining via SDI-to-SDO connections. Data integrity is preserved by synchronous 30 MHz clocking, tight timing margins (e.g., t_PLH ≤ 44 ns at 3.3 V), and guaranteed setup/hold times (10 ns/5 ns). The truth table in Figure 7 confirms bit-accurate shifting across cascaded devices without skew accumulation.

STP16DPS05PTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

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

Packaging:: Tape & Reel (TR)

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:: Surface Mount

Supplier Device Package:: 24-QSOP

STP16DPS05PTR FAQ

1.How can I place an order for STP16DPS05PTR through Aetrix?

Please submit a Request for Quotation (RFQ) for STP16DPS05PTR 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 STP16DPS05PTR reliable?

The price and inventory of STP16DPS05PTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP16DPS05PTR is usually 5 days.

3.What payment methods are accepted for STP16DPS05PTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP16DPS05PTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STP16DPS05PTR?

STP16DPS05PTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STP16DPS05PTR 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 STP16DPS05PTR?

For technical support, including STP16DPS05PTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP16DPS05PTR requirements.

6.How does Aetrix verify that STP16DPS05PTR is sourced from the original manufacturer or authorized distributors?

All STP16DPS05PTR 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 STP16DPS05PTR meets industry standards.

7.What is the process for return or replacement of STP16DPS05PTR?

All STP16DPS05PTR units undergo pre-shipment inspection (PSI). If there is an issue with STP16DPS05PTR, 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 STP16DPS05PTR part is unused and in its original packaging.

Return procedure for STP16DPS05PTR:

1.Submit a request within 90 days.

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

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