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STMicroelectronics STP16DPPS05MTR
- Part No.:
- STP16DPPS05MTR
- Manufacturer:
- STMicroelectronics
- Category:
- LED Drivers
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
STP16DPPS05MTR.pdf
- Description:
- IC LED DRIVER LINEAR 40MA 24SOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,500
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Product details
Overview
STP16DPPS05MTR from STMicroelectronics is a 16-bit constant-current LED sink driver with integrated open/short error detection and auto power-saving, designed for LED panel displays. It delivers 3–40 mA per channel via external R-EXT resistor, supports 30 MHz serial clocking, and operates from 3.0–5.5 V supply. Its TSSOP-24 exposed pad package enables thermal management in high-density LED signage and automotive interior lighting.
For engineers reviewing the STP16DPPS05MTR datasheet, STP16DPPS05MTR pinout, STP16DPPS05MTR application, or STP16DPPS05MTR equivalent, key selection criteria include output current accuracy (±1% between bits), dual-mode pin functionality (LE/DM1 and OE/DM2 for latch/detection), error detection timing (≥1 µs per channel), and thermal resistance (37.5 °C/W with exposed pad soldered).
Technical Context
The STP16DPPS05MTR integrates a 16-bit serial-in/parallel-out shift register feeding a 16-bit D-type storage register, driving sixteen regulated current sinks. Output current is set by an external resistor connected to R-EXT (Pin 23), enabling precise LED brightness control across all channels.
Error detection operates in three phases-entry, analysis, and exit-using dedicated logic sequences on LE/DM1 and OE/DM2 pins without additional I/O. Detection identifies open loads, short-to-GND, and short-to-VO conditions by monitoring output voltage and current thresholds, with results shifted out via SDO (Pin 22) in standard serial format.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output channels | 16 independent constant-current sink outputs (OUT0–OUT15) |
| Output current range | 3–40 mA per channel, adjustable via external R-EXT resistor (497 Ω–23.7 kΩ) |
| Current accuracy | ±1% between bits at 5–40 mA, ±2% between ICs |
| Max clock frequency | 30 MHz - enables high-speed LED refresh in video-rate signage |
| Supply voltage | 3.0–5.5 V - compatible with 3.3 V MCUs and legacy 5 V systems |
| Error detection time | >1 µs per channel - allows full 16-channel fault scan within 16.1 µs |
| Thermal resistance | 37.5 °C/W (junction-to-ambient, TSSOP-24 exposed pad, PCB-soldered) |
Pinout & Package
STP16DPPS05MTR is packaged in TSSOP-24 with exposed thermal pad (JEDEC MO-153 variant), requiring direct soldering of the pad to PCB copper for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Primary return path for all output currents and internal logic |
| 2 SDI | Serial data input | Accepts 3.3 V–compatible CMOS-level data for shift register loading |
| 3 CLK | Clock input | Edge-triggered 30 MHz max clock synchronizing shift register operation |
| 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 | Each drives one LED cathode; 20 V max output voltage supports 6+ white LEDs in series |
| 21 OE/DM2 | Output enable / detect mode 2 | Active-low output control; dual-function entry/exit trigger for error detection sequence |
| 22 SDO | Serial data output | Shifts out latched data or error status bits (MSB first, same format as SDI) |
| 23 R-EXT | Current-setting resistor terminal | Connects external resistor to set all 16 output currents simultaneously with <1% matching |
| 24 VDD | Power supply | 3.0–5.5 V input powering logic and output stages; decoupling required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Auto power-saving | Reduces supply current from 7.5 mA (ON) to 170 µA (shutdown) when no active latch data detected |
| Integrated error detection | Detects open, short-to-GND, and short-to-VO faults on all 16 outputs using existing pins-no extra I/O or external circuitry |
| 3.3 V MCU interface | Full 3.3 V logic compatibility: VIH = 0.7×VDD, VIL = 0.3×VDD, eliminating level-shifting in modern microcontroller designs |
| High thermal efficiency | TSSOP-24 exposed pad reduces RthJA to 37.5 °C/W-2.5× better than standard TSSOP-enabling 100% channel duty cycle at 40 mA |
| Adjustable brightness | PWM dimming via OE/DM2 pin enables 0–100% LED intensity control without altering current-setting resistor |
Applications
| LED Video Signage | Automotive Interior Lighting |
|---|---|
|
Use Scenario: High-resolution outdoor LED display panels requiring uniform brightness and real-time fault reporting. IC Role / Device Role / Timing Role: Constant-current sink driver with serial daisy-chain capability and per-channel open/short detection. Use Value: Enables automatic identification of failed LED strings during operation, reducing maintenance downtime and supporting predictive diagnostics via SDO-reported error bits. |
Use Scenario: Dashboard backlighting and ambient lighting modules where EMI, thermal density, and reliability are critical. IC Role / Device Role / Timing Role: Low-voltage, thermally robust LED driver with auto power-down during vehicle sleep mode. Use Value: Achieves <170 µA quiescent current in shutdown, meeting automotive static current budgets while maintaining fast wake-up (<1 µs) upon latch activation. |
| Industrial HMI Panels | Architectural LED Strips |
|
Use Scenario: Factory-floor human-machine interface panels exposed to wide temperature swings and vibration. IC Role / Device Role / Timing Role: 16-channel sink driver with ±1% current matching and 150 °C junction rating. Use Value: Maintains consistent LED luminance across -40 °C to +125 °C ambient, eliminating visible brightness drift in uncontrolled environments. |
Use Scenario: Long-run architectural LED strips requiring series-string flexibility and thermal resilience. IC Role / Device Role / Timing Role: High-VO (20 V) sink driver enabling up to 6 white LEDs (3.2 V each) per channel. Use Value: Reduces number of drivers needed per meter, lowering BOM cost and PCB area while sustaining 40 mA drive into 20 V load with <726 mV dropout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED sink driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC59283RTQR | No integrated error detection; requires external sensing circuitry; 16-bit, 3–120 mA range; 25 MHz max clock | Suitable for cost-sensitive, non-fault-critical LED arrays where diagnostic capability is not required | Select when higher current headroom (120 mA) is needed and thermal budget allows SOIC-24 (RthJA = 52 °C/W) |
| MAX6967AUG+T | Includes I²C interface and built-in PWM registers; 16-bit, 5–45 mA; no auto power-saving; 10 MHz max clock | Better suited for microcontroller-constrained systems needing register-based configuration over SPI | Choose when I²C system integration and per-channel PWM control outweigh need for 30 MHz throughput and autonomous power management |
Compared with TLC59283RTQR and MAX6967AUG+T, the STP16DPPS05MTR uniquely combines integrated open/short detection, auto power-saving, and 30 MHz serial speed in a thermally optimized TSSOP-24 exposed pad package-making it optimal for high-reliability, high-density LED systems where fault visibility and energy efficiency are design priorities.
Availability
STP16DPPS05MTR is available at Aetrix Electronics and suitable for LED video signage, automotive interior lighting, and industrial HMI panels requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for STP16DPPS05MTR 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 microcontrollers for industrial, automotive, and consumer markets.
The STP16DPPS05 belongs to ST's LED driver product line, engineered specifically for high-channel-count, thermally constrained LED display applications demanding precision current matching, fault diagnostics, and low-power standby operation.
FAQ
What is the minimum R-EXT resistor value for 40 mA output current?
The datasheet specifies 497 Ω as the R-EXT value required to achieve 40 mA output current per channel at VDD = 3.3–5.0 V and TA = 25 °C. Using a lower resistance risks exceeding absolute maximum output current (50 mA) and may degrade current accuracy or thermal performance. The device supports R-EXT down to 331 Ω for 60 mA, but this exceeds recommended operating conditions and is not guaranteed for long-term reliability.
How does the auto power-saving feature activate and deactivate?
Auto power-saving activates automatically when no new data is latched into the storage register for >100 µs, reducing IDD from ~7.5 mA to 170 µA. It deactivates on the first rising edge of LE/DM1 after new data is shifted in, restoring full output drive within <1 µs. No external control signal is needed-the feature is fully autonomous and transparent to the host MCU.
Can STP16DPPS05MTR drive LEDs in common-anode configurations?
No-it is a sink-only driver with 16 N-channel current sources tied to OUT0–OUT15. It requires LEDs connected anode-to-VLED (supply) and cathode-to-OUTn. For common-anode designs, a separate high-side switch or P-channel driver must be used upstream; STP16DPPS05MTR cannot source current or operate as a high-side driver.
Is the exposed thermal pad on STP16DPPS05MTR electrically isolated?
No-the exposed pad is internally connected to GND (Pin 1). It must be soldered to a PCB copper pour tied to the system ground plane to achieve the specified 37.5 °C/W thermal resistance. Leaving it floating or connecting it to a different potential violates the absolute maximum ratings and risks thermal runaway or latch-up.
STP16DPPS05MTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 24-SOIC (0.295", 7.50mm 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:
- 40mA
- Frequency:
- 30MHz
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SOP
STP16DPPS05MTR FAQ
1.How can I place an order for STP16DPPS05MTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STP16DPPS05MTR 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 STP16DPPS05MTR reliable?
The price and inventory of STP16DPPS05MTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP16DPPS05MTR is usually 5 days.
3.What payment methods are accepted for STP16DPPS05MTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP16DPPS05MTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STP16DPPS05MTR?
STP16DPPS05MTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STP16DPPS05MTR 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 STP16DPPS05MTR?
For technical support, including STP16DPPS05MTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP16DPPS05MTR requirements.
6.How does Aetrix verify that STP16DPPS05MTR is sourced from the original manufacturer or authorized distributors?
All STP16DPPS05MTR 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 STP16DPPS05MTR meets industry standards.
7.What is the process for return or replacement of STP16DPPS05MTR?
All STP16DPPS05MTR units undergo pre-shipment inspection (PSI). If there is an issue with STP16DPPS05MTR, 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 STP16DPPS05MTR part is unused and in its original packaging.
Return procedure for STP16DPPS05MTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STP16DPPS05MTR Tags
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BCR402RE6327HTSA1
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BCR430UXTSA2
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BCR420UE6433HTMA1
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BCR420UE6327HTSA1
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BCR421UE6327HTSA1
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LYT1604D-TL
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HV9910CLG-G
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CL2N8-G
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BCR420UW6-7
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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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