Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

STMicroelectronics STP16CP05TTR

Name: STP16CP05TTR
Brand: STMicroelectronics
SKU: STP16CP05TTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: STP16CP05TTR

Manufacturer:: STMicroelectronics

Category:: LED Drivers

Package:: 24-TSSOP (0.173", 4.40mm Width)

Datasheet:: STP16CP05TTR.pdf

Description:: IC LED DRVR LINEAR 100MA 24TSSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:10,889

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

STP16CP05TTR from STMicroelectronics is a 16-channel constant-current LED sink driver IC with serial-in/parallel-out shift register architecture, designed for LED panel displays. It operates from 3.0 V to 5.5 V, delivers 5–100 mA per channel via external R_EXT, supports 30 MHz clock input, and guarantees 20 V output driving capability for series-connected LEDs.

For engineers reviewing the STP16CP05TTR datasheet, STP16CP05TTR pinout, STP16CP05TTR application, or STP16CP05TTR equivalent, key selection criteria include per-channel current accuracy (±1.5% between bits), thermal protection at 170 °C, latch-level sensitivity (not edge-triggered), and compatibility with 3.3 V microcontrollers via TTL-compatible inputs.

Technical Context

The device integrates a 16-bit shift register cascaded to a 16-bit D-type storage latch, enabling synchronous data loading and independent output enable control. Its output stage uses sixteen matched regulated current sources, each programmable via a single external resistor (R_EXT) connected to pin 23.

Control logic is level-sensitive: LE/DM1 latches new data on high level; OE/DM2 disables all outputs when high. Propagation delays are voltage-dependent - e.g., t_PLH1 = 24 ns (typ.) at V_DD = 5 V - and output rise/fall times are under 32 ns (V_DD = 5 V), supporting high-speed LED multiplexing.

Key Specifications

Parameter	Value and Actual Design Meaning
Output channels	16 independent constant-current sinks for LED anode-to-V_DD connections
Output current range	5–100 mA per channel, set by external R_EXT (200 Ω to 4.2 kΩ)
Max clock frequency	30 MHz - enables >4.8 Mbps serial data throughput in cascade mode
Output voltage rating	20 V - supports up to 6 standard red/green LEDs (3.2 V VF) in series per channel
Current accuracy	±1.5% between bits at 25 °C - ensures uniform LED brightness across display rows
Supply voltage range	3.0–5.5 V - direct interface with 3.3 V or 5 V logic without level shifting
Thermal shutdown	170 °C junction - protects against sustained overcurrent or poor PCB thermal design

Pinout & Package

TSSOP24 package (4.4 mm × 7.8 mm × 1.05 mm), thermally enhanced with exposed pad requiring solder connection to PCB ground plane for optimal R_thJA = 37.5 °C/W.

Pin/Terminal	Circuit Role	Design Meaning
1 GND	Ground reference	Primary return path for all output currents and internal logic; must be low-impedance
2 SDI	Serial data input	TTL-compatible input accepting 3.3 V logic; feeds shift register MSB-first
3 CLK	Shift clock input	Edge-triggered clock (min. pulse width 8 ns); controls data advancement through shift register
4 LE/DM1	Latch enable	Level-sensitive (high = load shift register into output latch); no clock synchronization required
5–20 OUT0–OUT15	Constant-current outputs	Sink terminals; each drives LED cathode; 20 V max voltage swing relative to GND
21 OE/DM2	Output enable	Active-low level-sensitive control; high = all outputs disabled (high-Z sink state)
22 SDO	Serial data output	Shift register Q₁₆ output; enables daisy-chaining multiple STP16CP05 devices
23 R-EXT	Current programming	Analog input node; sets all 16 output currents identically via external resistor to GND
24 VDD	Power supply	3.0–5.5 V input; powers logic and output stages; decoupling capacitor required

Key Features

Feature	Design Value
Adjustable per-channel current	Single R_EXT resistor scales all 16 outputs simultaneously (3–100 mA range)
High-speed serial interface	30 MHz max clock enables <1 µs full 16-bit load time - critical for flicker-free LED scanning
Thermal robustness	170 °C junction shutdown prevents damage during transient overloads or poor heatsinking
LED string flexibility	20 V output compliance allows ≥6 LEDs in series per channel at typical forward voltages
Logic-level compatibility	VIH = 0.7×VDD and VIL = 0.3×VDD ensure reliable operation with 3.3 V MCUs without translators

Applications

Indoor LED Video Walls

Automotive Interior Lighting Control

Use Scenario: High-resolution indoor signage using 1/16 scan-rate multiplexed SMD2121 RGB LED modules.

IC Role / Device Role / Timing Role: Constant-current sink driver providing precise per-pixel intensity control via PWM-modulated serial data streams.

Use Value: ±1.5% inter-channel current matching eliminates vertical brightness bands; 30 MHz clock supports real-time video frame rates up to 120 Hz.

Use Scenario: Dynamic ambient lighting in vehicle door panels and footwells with individually addressable LED zones.

IC Role / Device Role / Timing Role: Serial-controlled current sink managing 16 discrete LED strings, synchronized to vehicle CAN bus lighting commands.

Use Value: 3.0–5.5 V operation matches automotive 5 V rail; thermal shutdown prevents failure during cabin temperature extremes (−40 to +85 °C).

Industrial HMI Display Backlighting

Medical Equipment Status Indicators

Use Scenario: Uniform backlight for 7-inch TFT-LCD panels in factory-floor HMIs exposed to ESD-prone environments.

IC Role / Device Role / Timing Role: LED current regulator with integrated ESD protection (2 kV HBM) driving parallel LED strings behind diffuser film.

Use Value: 2 kV HBM rating reduces need for external TVS diodes; 20 V output headroom accommodates aging LED VF drift over 10-year service life.

Use Scenario: Red/green status indicators on patient monitors where visual clarity and reliability are safety-critical.

IC Role / Device Role / Timing Role: Fault-tolerant LED driver with latch-level control enabling deterministic ON/OFF state retention during MCU resets.

Use Value: Level-sensitive LE/DM1 ensures indicator state persists across power glitches; ±5% inter-device current variation meets IEC 60601-1 luminance consistency requirements.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-channel constant-current LED driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLC59283DBQR	Higher max current (120 mA), but only 20 V output rating; no thermal shutdown; requires external VREF for current setting	Designed for industrial LED signage with higher peak brightness needs; lacks integrated thermal protection	Select when absolute max current >100 mA is required and board-level thermal monitoring is already implemented
MAX7219CWG+	Integrated 8×8 matrix decoder and BCD code converter; fixed 40 mA per segment; SPI interface only	Targeted at 7-segment/LED matrix displays with minimal MCU overhead; not suitable for arbitrary 16-string configurations	Choose for legacy numeric displays where firmware simplicity outweighs flexibility in LED topology

Compared with TLC59283DBQR and MAX7219CWG+, the STP16CP05TTR uniquely balances programmable current (5–100 mA), thermal safety, and direct 3.3 V MCU compatibility - making it optimal for new designs requiring both precision and robustness in variable LED load conditions.

Availability

STP16CP05TTR is available at Aetrix Electronics and suitable for indoor LED video walls, automotive interior lighting control, industrial HMI display backlighting, and medical equipment status indicators requiring stable component supply across multi-year production cycles.

Supply support for STP16CP05TTR 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 STP16CP05 belongs to ST's LED driver product line, engineered specifically for high-reliability, low-voltage LED panel applications where consistent brightness, thermal resilience, and seamless 3.3 V microcontroller integration are mandatory.

FAQ

What is the minimum recommended R_EXT value for STP16CP05TTR?

The minimum recommended R_EXT is 200 Ω, which sets the maximum output current to 100 mA per channel at V_DD = 5 V and T_A = 25 °C. Using lower resistance risks exceeding the absolute maximum output current rating of 100 mA and may trigger thermal shutdown under sustained load. The datasheet specifies R_EXT = 200 Ω yields 96–104 mA (typ./max) with ±1.2% inter-bit error.

Can STP16CP05TTR drive LEDs directly from a 3.3 V supply?

Yes - STP16CP05TTR operates down to 3.0 V and is fully compatible with 3.3 V microcontrollers: its VIH threshold is 0.7×V_DD (2.31 V min), VIL is 0.3×V_DD (0.99 V max), and output current remains stable across the 3.0–5.5 V range. However, LED string voltage must stay ≤20 V, so total forward voltage of series-connected LEDs must be within that limit.

How does the exposed pad on the TSSOP24 package affect thermal performance?

The exposed pad on STP16CP05TTR's TSSOP24 package must be soldered to a dedicated PCB copper land connected to GND to achieve the specified R_thJA of 37.5 °C/W. Without this connection, thermal resistance degrades to 55 °C/W, increasing junction temperature by ~18 °C at full 1.6 A total output current - risking premature thermal shutdown or long-term reliability loss.

Is STP16CP05TTR suitable for use in daisy-chained configurations?

Yes - STP16CP05TTR supports cascade operation via its SDO (pin 22) output, which relays the 16th bit of the shift register to the SDI of the next device. For reliable daisy-chaining at 30 MHz, clock rise/fall times must be ≤5 ns and trace lengths should be impedance-controlled; propagation delay stacking limits practical chain length to ≤4 devices at full speed.

STP16CP05TTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 24-TSSOP (0.173", 4.40mm 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-TSSOP

STP16CP05TTR FAQ

1.How can I place an order for STP16CP05TTR through Aetrix?

Please submit a Request for Quotation (RFQ) for STP16CP05TTR 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 STP16CP05TTR reliable?

The price and inventory of STP16CP05TTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP16CP05TTR is usually 5 days.

3.What payment methods are accepted for STP16CP05TTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP16CP05TTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STP16CP05TTR?

STP16CP05TTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STP16CP05TTR 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 STP16CP05TTR?

For technical support, including STP16CP05TTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP16CP05TTR requirements.

6.How does Aetrix verify that STP16CP05TTR is sourced from the original manufacturer or authorized distributors?

All STP16CP05TTR 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 STP16CP05TTR meets industry standards.

7.What is the process for return or replacement of STP16CP05TTR?

All STP16CP05TTR units undergo pre-shipment inspection (PSI). If there is an issue with STP16CP05TTR, 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 STP16CP05TTR part is unused and in its original packaging.

Return procedure for STP16CP05TTR:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…