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

STMicroelectronics STP16DPPS05PTR

Name: STP16DPPS05PTR
Brand: STMicroelectronics
SKU: STP16DPPS05PTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STP16DPPS05PTR

Manufacturer:: STMicroelectronics

Category:: LED Drivers

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

Datasheet:: STP16DPPS05PTR.pdf

Description:: IC LED DRIVER LINEAR 40MA 24QSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STP16DPPS05PTR from STMicroelectronics is a 16-bit constant-current LED sink driver in QSOP-24 package, designed for LED panel displays requiring precise current regulation, open/short fault detection, and auto power-saving. It delivers 3–40 mA per channel with ±1% inter-channel accuracy at 5 mA, supports 30 MHz serial clocking, and interfaces directly with 3.3 V MCUs.

For engineers reviewing the STP16DPPS05PTR datasheet, STP16DPPS05PTR pinout, STP16DPPS05PTR application, or STP16DPPS05PTR equivalent, key selection criteria include output error detection logic timing, R-EXT-based current programming, OE/DM2 dual-function behavior, and thermal performance in QSOP-24 (R_thJA = 55 °C/W).

Technical Context

The device integrates a 16-bit serial-in/parallel-out shift register feeding a 16-bit D-type storage latch, driving sixteen matched current sources. Output current is set by external R-EXT (e.g., 497 Ω → 40 mA), with dropout voltage as low as 36 mV at 3 mA (3.3 V).

Error detection operates via dedicated logic on OE/DM2 and LE/DM1 pins-no extra pins required-and identifies three fault conditions: short-to-GND, short-to-V_O, or open line. Detection results are shifted out via SDO using the same serial interface used for data input.

Key Specifications

Parameter	Value and Actual Design Meaning
Output channels	16 independent constant-current sinks, each programmable 3–40 mA
Current accuracy	±1% between outputs at 5 mA (V_O = 0.3 V, R_EXT = 4 kΩ)
Max clock frequency	30 MHz-enables high-speed LED refresh in cascaded display systems
Output voltage range	Up to 20 V-supports ≥6 white LEDs in series at typical forward voltage
Supply voltage	3.0–5.5 V-fully compatible with 3.3 V MCU I/O without level shifting
Thermal resistance	R_thJA = 55 °C/W in QSOP-24-enables 7.5 mA supply current at full 16-channel ON load without forced cooling
Fault detection	Detects open, short-to-GND, and short-to-V_O per channel; results returned via SDO

Pinout & Package

STP16DPPS05PTR uses QSOP-24 package (8.66 mm × 6.00 mm × 1.62 mm), featuring gull-wing leads and internal thermal pad connected to GND for enhanced heat dissipation.

Pin/Terminal	Circuit Role	Design Meaning
1 GND	Ground reference	Common return for all current sinks and logic; must be low-impedance path to PCB ground plane
2 SDI	Serial data input	CMOS-compatible input accepting 3.3 V logic; feeds shift register LSB-first
3 CLK	Clock input	Edge-triggered (rising edge); max 30 MHz; t_wCLK ≥ 10 ns
4 LE/DM1	Latch enable / detect mode 1	Level-sensitive; high enables latch update; dual-function control for entering error detection mode
5–20 OUT0–OUT15	Constant-current sink outputs	Each drives LED cathode; 20 V max output voltage; current set by R-EXT
21 OE/DM2	Output enable / detect mode 2	Active-low output control; also serves as secondary trigger for error detection sequence
22 SDO	Serial data output	Shifts out latched data or error status bits MSB-first; CMOS-compatible output
23 R-EXT	Current programming input	Connects external resistor (e.g., 497 Ω → 40 mA); sets all 16 channels identically
24 VDD	Power supply	3.0–5.5 V input; decoupling capacitor (≥100 nF) required near pin

Key Features

Feature	Design Value
Auto power-saving	Reduces IDD from 7.5 mA to 170 µA when no new data is latched-no MCU intervention required
Integrated error detection	Identifies open, short-to-GND, and short-to-V_O per channel using existing OE/DM2 and LE/DM1 pins-zero pin overhead
3.3 V MCU compatibility	Full 3.3 V logic operation (VIH = 0.7×VDD, VIL = 0.3×VDD) eliminates level-shifter need in embedded LED controllers
High-output voltage capability	20 V output swing allows driving 6+ white LEDs (3.2 V each) in series per channel
Thermal efficiency	QSOP-24 package achieves R_thJA = 55 °C/W-2.5× better than standard SO-24 under identical PCB layout

Applications

LED Video Wall Panels

Industrial HMI Displays

Use Scenario: High-density indoor LED video walls requiring uniform brightness across thousands of pixels.

IC Role / Device Role / Timing Role: Constant-current sink driver managing 16 LED strings per chip; serial cascade enables scalable column addressing.

Use Value: ±1% current matching ensures pixel-to-pixel luminance consistency; 30 MHz clock supports real-time video frame rates up to 120 Hz.

Use Scenario: Factory-floor operator panels with segmented LED indicators subject to vibration and temperature cycling.

IC Role / Device Role / Timing Role: Fault-tolerant LED driver with built-in open/short detection for predictive maintenance alerts.

Use Value: Real-time detection of LED failure modes reduces unplanned downtime; auto power-saving extends panel standby life.

Automotive Interior Lighting

Architectural LED Strips

Use Scenario: Dashboard backlighting and ambient lighting modules requiring AEC-Q100 alignment and thermal robustness.

IC Role / Device Role / Timing Role: Current-regulated sink for RGBW LED zones; OE/DM2 dimming enables PWM-free analog brightness control.

Use Value: 125 °C operating temperature range and 170 °C thermal shutdown ensure reliability in enclosed automotive enclosures.

Use Scenario: Long-run linear LED strips for commercial signage where consistent color and intensity are critical.

IC Role / Device Role / Timing Role: Distributed current source enabling uniform current delivery across 24-pin QSOP footprint with minimal trace resistance impact.

Use Value: 20 V output headroom accommodates voltage drop over 2-meter traces; R-EXT tuning allows batch calibration for binning compensation.

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 sink driver with 3–120 mA range; no integrated open/short detection; requires external fault monitoring circuitry	Suitable for cost-sensitive lighting where fault detection is handled at system level	Choose if higher current headroom (120 mA) is needed and board space permits added detection components
MAX7219CWG+	8-bit driver with SPI interface; includes on-chip BCD decode, scan limit, and intensity control; no R-EXT current setting	Targeted at 7-segment/matrix displays-not optimized for high-current LED panels	Prefer for alphanumeric displays with integrated decoding; avoid for high-brightness, high-channel-count LED arrays

Compared with TLC59283RTJR and MAX7219CWG+, STP16DPPS05PTR uniquely combines per-channel fault detection, QSOP-24 thermal efficiency, and R-EXT programmability-making it optimal for industrial LED panels where reliability, thermal margin, and calibration flexibility are prioritized over raw current headroom or display-specific features.

Availability

STP16DPPS05PTR is available at Aetrix Electronics and suitable for LED video wall panels, industrial HMI displays, and automotive interior lighting requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for STP16DPPS05PTR 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, microcontrollers, sensors, and analog ICs for industrial, automotive, and consumer markets.

The STP16DPPS05 belongs to ST's LED driver portfolio targeting high-reliability display systems-designed specifically for applications demanding fault-aware current regulation, thermal resilience in compact packages, and seamless integration with 3.3 V microcontroller ecosystems.

FAQ

What is the minimum R-EXT value supported, and what output current does it produce?

The minimum recommended R-EXT is 331 Ω, which sets output current to 60 mA per channel (per Table 11). However, absolute maximum output current is rated at 50 mA per channel (Table 4), so operation above 50 mA violates absolute maximum ratings and risks permanent damage. For reliable operation, R-EXT ≥ 497 Ω (40 mA) is advised.

How does the auto power-saving mode interact with OE/DM2 and LE/DM1 timing?

Auto power-saving activates when no new data is latched for >100 µs while OE/DM2 is high (outputs disabled). It exits automatically on the first rising edge of LE/DM1 that loads valid data-no OE/DM2 transition required. The device draws only 170 µA in shutdown, and T_ON of the first enabled output reflects full startup delay (Figure 23).

Can STP16DPPS05PTR drive LEDs with forward voltages exceeding 15 V?

Yes-the device guarantees 20 V output voltage capability (Table 4), allowing up to six 3.2 V white LEDs (19.2 V total) plus margin for trace drop. At 20 V output, dropout remains within spec (≤726 mV at 40 mA, Table 12), ensuring regulation integrity even at high V_F stacks.

Is the QSOP-24 package RoHS-compliant and lead-free?

Yes-STP16DPPS05PTR is manufactured in ECOPACK®-compliant QSOP-24 packaging, meeting RoHS Directive 2011/65/EU and REACH SVHC requirements. Lead-free soldering profile follows JEDEC J-STD-020D, with peak reflow temperature ≤260 °C for 10 seconds.

STP16DPPS05PTR 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:: 40mA

Frequency:: 30MHz

Dimming:: -

Applications:: -

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 24-QSOP

STP16DPPS05PTR FAQ

1.How can I place an order for STP16DPPS05PTR through Aetrix?

Please submit a Request for Quotation (RFQ) for STP16DPPS05PTR 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 STP16DPPS05PTR reliable?

The price and inventory of STP16DPPS05PTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP16DPPS05PTR is usually 5 days.

3.What payment methods are accepted for STP16DPPS05PTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP16DPPS05PTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STP16DPPS05PTR?

STP16DPPS05PTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STP16DPPS05PTR 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 STP16DPPS05PTR?

For technical support, including STP16DPPS05PTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP16DPPS05PTR requirements.

6.How does Aetrix verify that STP16DPPS05PTR is sourced from the original manufacturer or authorized distributors?

All STP16DPPS05PTR 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 STP16DPPS05PTR meets industry standards.

7.What is the process for return or replacement of STP16DPPS05PTR?

All STP16DPPS05PTR units undergo pre-shipment inspection (PSI). If there is an issue with STP16DPPS05PTR, 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 STP16DPPS05PTR part is unused and in its original packaging.

Return procedure for STP16DPPS05PTR:

1.Submit a request within 90 days.

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

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