My Inquiry
My Account
STMicroelectronics STP16DPP05PTR
- Part No.:
- STP16DPP05PTR
- Manufacturer:
- STMicroelectronics
- Category:
- LED Drivers
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
STP16DPP05PTR.pdf
- Description:
- IC LED DRIVER LINEAR 40MA 24QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,115
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STP16DPP05PTR from STMicroelectronics is a 16-bit constant-current LED sink driver in QSOP-24 package, designed for LED panel displays requiring precise current regulation and fault detection. It delivers 3–40 mA per channel with ±1% inter-channel accuracy at 5 mA, supports 30 MHz serial data clocking, and integrates open/short LED detection without additional pins using dual-mode DM1/DM2 control logic.
For engineers reviewing the STP16DPP05PTR datasheet, STP16DPP05PTR pinout, STP16DPP05PTR application, or STP16DPP05PTR equivalent, key selection criteria include output current adjustability via R-EXT, 20 V output voltage capability for multi-LED strings, 3.3 V MCU compatibility, thermal performance of QSOP-24 (RthJA = 55 °C/W), and error detection timing sequence compliance.
Technical Context
The device implements a 16-bit serial-in/parallel-out shift register feeding a D-type storage latch, followed by sixteen matched current-regulated sink outputs. Output current is set externally via R-EXT (e.g., 497 Ω → 40 mA) and remains stable across VDD = 3–5.5 V and TA = −40 to +125 °C.
Error detection operates in three phases: entry via 5-cycle OE/DM2 & LE/DM1 logic sequence, 1 µs per-output analysis of open/short conditions using IO and VO thresholds, and return to normal mode via dedicated 5-cycle resume sequence - all sharing SDO for result readout without pin count increase.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output channels | 16 independent constant-current sinks for LED string control |
| Output current range | 3–40 mA per channel, adjustable via external R-EXT resistor |
| Current accuracy | ±1% between outputs at 5 mA, ±2% across units |
| Max output voltage | 20 V - enables driving up to 6 white LEDs (3.2 V each) in series |
| Serial clock frequency | 30 MHz - supports high-refresh-rate LED panels (e.g., >1 kHz frame rate) |
| Error detection | Detects open-circuit, short-to-GND, and short-to-VO on all 16 outputs |
| Supply voltage | 3.0–5.5 V - compatible with 3.3 V microcontrollers without level-shifting |
| Thermal resistance | RthJA = 55 °C/W (QSOP-24) - requires minimal PCB copper area for 100 mA total load |
Pinout & Package
STP16DPP05PTR is housed in a 24-pin QSOP package (JEDEC MO-137AA) with 0.635 mm pitch, 8.66 mm × 6.00 mm body, and exposed pad recommended for thermal relief. The package meets ECOPACK® environmental standards and supports surface-mount reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Common return path for all 16 output currents and internal logic |
| 2 SDI | Serial data input | Accepts 3.3 V–compatible CMOS-level data stream for shift register loading |
| 3 CLK | Clock input | Edge-triggered 30 MHz input synchronizing data shift and latch update |
| 4 LE/DM1 | Latch enable / Detect Mode 1 | Level-sensitive control: high = load shift register to latch; low = hold; dual-function for error mode entry |
| 5–20 OUT0–OUT15 | Constant-current sink outputs | Each delivers regulated current (3–40 mA) to cathode of connected LED; open-drain structure with 20 V breakdown |
| 21 OE/DM2 | Output enable / Detect Mode 2 | Active-low output control; also used with LE/DM1 to enter/exit error detection mode via defined logic sequence |
| 22 SDO | Serial data output | Shifts out error status bits (16-bit) or normal data during cascade operation |
| 23 R-EXT | Current-setting resistor input | Connects external resistor to set full-scale output current (e.g., 497 Ω → 40 mA) |
| 24 VDD | Positive supply | 3.0–5.5 V power rail for logic and output stages; decoupling required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Integrated open/short LED detection | Per-channel fault identification without extra pins or external circuitry - reduces BOM and board space |
| Adjustable current via single resistor | R-EXT sets identical current across all 16 channels, enabling uniform LED brightness calibration |
| 3.3 V logic-compatible interface | VIH = 0.7×VDD and VIL = 0.3×VDD allow direct connection to 3.3 V MCUs without level shifters |
| High-speed 30 MHz serial interface | Enables <100 µs full 16-bit update - critical for flicker-free video-grade LED displays |
| 20 V output voltage rating | Supports longer LED strings (e.g., 6× white LEDs) while maintaining regulation margin at VLED + Vdrop |
| Thermally enhanced QSOP-24 | RthJA = 55 °C/W allows 1.2 W dissipation at ΔT = 66 °C - sufficient for 16×20 mA @ 1.5 V drop |
Applications
| Indoor LED Video Walls | Automotive Interior Lighting |
|---|---|
|
Use Scenario: High-resolution indoor display modules with 16×N LED matrix per driver IC. IC Role / Device Role / Timing Role: Constant-current sink driver managing individual LED rows/columns; synchronized via 30 MHz SPI clock for real-time grayscale PWM. Use Value: ±1% current matching ensures pixel-to-pixel luminance uniformity; open-detection prevents dead-pixel artifacts during field operation. |
Use Scenario: RGB ambient lighting strips in vehicle cabins with diagnostic requirements. IC Role / Device Role / Timing Role: LED current controller with integrated fault reporting; OE/DM2 toggled under microcontroller supervision to trigger periodic self-test. Use Value: Short-to-GND detection identifies wiring faults before thermal runaway; 20 V output headroom accommodates variable forward voltages across color bins. |
| Industrial Panel Indicators | Point-of-Sale Display Backlighting |
|
Use Scenario: Status indicator arrays on factory HMIs where reliability and serviceability are critical. IC Role / Device Role / Timing Role: LED driver with embedded diagnostics; error bits shifted out during idle cycles to host MCU for predictive maintenance logging. Use Value: Eliminates need for external sense resistors or comparators - reduces failure points and improves MTBF in harsh environments. |
Use Scenario: Edge-lit LCD backlight for compact retail kiosks requiring dimming and fault tolerance. IC Role / Device Role / Timing Role: Current-regulated sink for parallel LED strings; R-EXT adjusted to match binning and aging drift over 50,000-hour lifetime. Use Value: 3–40 mA range supports both low-power indicators and higher-brightness backlight zones; thermal resistance ensures stable operation in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED sink driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB62706CFNG | 16-bit sink driver with 5–100 mA range; no integrated open/short detection; uses separate FAULT pin | Requires external comparator circuit for fault reporting; lacks DM1/DM2 dual-mode logic | Select when higher current (>40 mA) is needed and diagnostic integration is handled externally |
| IS31FL3728-QFLS4-TR | I²C interface instead of SPI; built-in 8×8 PWM engine; 28 mA max per channel; no R-EXT adjustment | Eliminates shift register timing constraints but adds protocol overhead; fixed current steps only | Select for systems prioritizing software-configurable dimming over hardware simplicity and deterministic timing |
Compared with TB62706CFNG, STP16DPP05PTR provides integrated diagnostics without added components; compared with IS31FL3728-QFLS4-TR, it offers deterministic 30 MHz SPI timing and analog current tuning - critical for real-time display control and thermal stability in industrial settings.
Availability
STP16DPP05PTR is available at Aetrix Electronics and suitable for indoor LED video walls, automotive interior lighting, industrial panel indicators, and point-of-sale display backlighting requiring stable component supply across extended production lifecycles.
Supply support for STP16DPP05PTR 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, designing and manufacturing analog, mixed-signal, power, and microcontroller solutions for industrial, automotive, and consumer markets.
The STP16DPP05 belongs to ST's LED driver product line, engineered specifically for high-reliability, current-accurate LED panel applications where integrated diagnostics, thermal efficiency, and 3.3 V MCU compatibility are mandatory design requirements.
FAQ
What is the minimum R-EXT value supported for full 40 mA output?
The datasheet specifies R-EXT = 497 Ω for 40 mA output at VDD = 3.3–5 V and TA = 25 °C. At lower temperatures or higher VDD, current may exceed 40 mA; derating is required above 85 °C. Operation below 497 Ω risks exceeding absolute maximum output current (50 mA) and thermal limits in QSOP-24.
How does the error detection mode interact with normal PWM dimming?
Error detection must be performed in dedicated time windows outside active PWM periods. During detection, OE/DM2 is pulsed low for ≥1 µs while outputs are forced ON; this overrides PWM state. After detection, the device resumes prior latch data - so PWM duty cycle must be reloaded if interrupted. Detection duration is fixed and non-overlapping with data shifting.
Can STP16DPP05PTR drive LEDs with forward voltage >20 V?
No. The absolute maximum output voltage is 20 V (VO). Exceeding this risks permanent damage to the output transistors. For LED strings requiring >20 V, use a boost converter upstream or select a driver with higher breakdown voltage (e.g., STP16DPPS05, rated to 30 V).
Is the QSOP-24 package RoHS and REACH compliant?
Yes. STP16DPP05PTR is manufactured in an ECOPACK®-compliant QSOP-24 package meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Full material declarations and substance thresholds are published in ST's official ECOPACK® documentation portal.
STP16DPP05PTR 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
STP16DPP05PTR FAQ
1.How can I place an order for STP16DPP05PTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STP16DPP05PTR 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 STP16DPP05PTR reliable?
The price and inventory of STP16DPP05PTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP16DPP05PTR is usually 5 days.
3.What payment methods are accepted for STP16DPP05PTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP16DPP05PTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STP16DPP05PTR?
STP16DPP05PTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STP16DPP05PTR 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 STP16DPP05PTR?
For technical support, including STP16DPP05PTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP16DPP05PTR requirements.
6.How does Aetrix verify that STP16DPP05PTR is sourced from the original manufacturer or authorized distributors?
All STP16DPP05PTR 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 STP16DPP05PTR meets industry standards.
7.What is the process for return or replacement of STP16DPP05PTR?
All STP16DPP05PTR units undergo pre-shipment inspection (PSI). If there is an issue with STP16DPP05PTR, 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 STP16DPP05PTR part is unused and in its original packaging.
Return procedure for STP16DPP05PTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STP16DPP05PTR Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
