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 STP04CM596XTTR

Name: STP04CM596XTTR
Brand: STMicroelectronics
SKU: STP04CM596XTTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: STP04CM596XTTR

Manufacturer:: STMicroelectronics

Category:: LED Drivers

Package:: 16-TSSOP (0.173", 4.40mm Width) Exposed Pad

Datasheet:: STP04CM596XTTR.pdf

Description:: IC LED DRVR LINEAR 500MA 16TSSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,847

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

Product details

Overview

STP04CM596XTTR from STMicroelectronics is a 4-channel constant-current LED sink driver with integrated 4-bit shift register and latch, designed for high-brightness power-LED arrays in signage and architectural lighting. It delivers 80–500 mA per channel, supports 25 MHz serial clocking, guarantees 16 V output voltage headroom, and uses a single external R_EXT resistor to set current uniformly across all outputs.

For engineers reviewing the STP04CM596XTTR datasheet, STP04CM596XTTR pinout, STP04CM596XTTR application, or STP04CM596XTTR equivalent, key selection criteria include output current adjustability via R_EXT, thermal performance of the TSSOP16 exposed-pad package, propagation delay (≤160 ns), current matching accuracy (±1% between bits), and OE/LE-controlled output staging for PWM dimming integration.

Technical Context

The device integrates a serial-in/parallel-out 4-bit shift register cascaded with a D-type storage latch, enabling daisy-chain configuration for multi-device systems. Clock input (CLK) drives data shifting on falling edges, while LATCH (LE) transfers register contents to output drivers synchronously.

Each of the four output channels features a regulated current sink with 16 V maximum compliance voltage and adjustable current (80–500 mA) set by R_EXT. Output Enable (OE, active-low) provides global on/off control independent of latch state, supporting precise timing for pulse-width modulation dimming.

Key Specifications

Parameter	Value and Actual Design Meaning
Output current range	80–500 mA per channel, set by single R_EXT (160–910 Ω), enabling uniform brightness tuning across LEDs
Output voltage compliance	Up to 16 V, allowing ≥4 series-connected white/blue power LEDs (VF ≈ 3.2–3.8 V each) per channel
Current matching accuracy	±1% between channels at same R_EXT, ensuring consistent luminance without per-channel calibration
Max clock frequency	25 MHz, supporting >300 Hz full-frame update rates for 16×16 LED matrices using daisy-chained devices
Propagation delay (CLK→OUT)	100–160 ns typical, enabling tight timing control for synchronized multi-channel PWM dimming
Supply voltage range	3.3–5.5 V, compatible with standard logic-level microcontrollers and industrial 5 V rails
Operating temperature	−40°C to +125°C, validated for outdoor signage and high-ambient industrial lighting enclosures

Pinout & Package

TSSOP16 Exposed Pad package with thermal pad optimized for high-power LED driver applications; JEDEC-standard footprint, RoHS-compliant ECOPACK® construction.

Pin/Terminal	Circuit Role	Design Meaning
GND (Pins 1,2)	Ground reference	Dual ground pins reduce IR drop and improve current-source stability under dynamic load
SDI (Pin 3)	Serial data input	Accepts CMOS-level data stream; data shifted on CLK falling edge for daisy-chain expansion
CLK (Pin 4)	Clock input	Falling-edge-triggered; 25 MHz max enables high-speed LED matrix refresh without frame tearing
LE (Pin 5)	Latch enable	Transfers shift-register data to output latches; synchronous update prevents partial-frame glitches
OUT0–OUT3 (Pins 6,7,9,10)	Constant-current sinks	Four independent 80–500 mA sinks; each drives cathode of power LED string with 16 V headroom
OE (Pin 13)	Output enable (active low)	Global hardware shutdown; enables precise PWM dimming without disturbing internal register state
SDO (Pin 14)	Serial data output	Pass-through of shifted data; allows seamless cascade of multiple STP04CM596 devices
R-EXT (Pin 15)	Current-setting resistor node	Connects external precision resistor (160–910 Ω) to set identical current across all four channels
VDD (Pin 16)	Power supply	5 V nominal supply; powers logic and output stages; decoupling required near pin for noise immunity

Key Features

Feature	Design Value
Single-resistor current programming	One external R_EXT sets identical 80–500 mA current for all four channels, eliminating per-channel trimming
25 MHz serial interface	Enables >300 Hz full-array updates for 64-LED displays using two daisy-chained devices, reducing MCU GPIO overhead
16 V output compliance	Supports driving up to five 3.2 V blue/white power LEDs in series per channel without external boost circuitry
Active-low OE with fast response	Output disable time <70 ns ensures clean PWM dimming edges and eliminates ghosting during brightness transitions
TSSOP16 exposed thermal pad	37.5 °C/W junction-to-ambient (multi-layer PCB), enabling 2 W continuous dissipation in compact LED driver modules

Applications

Architectural LED Strips

Outdoor Digital Signage

Use Scenario: Linear RGBW LED strips mounted on building façades requiring uniform brightness and thermal resilience.

IC Role / Device Role / Timing Role: Constant-current sink driver with daisy-chain capability for distributed control of long LED runs.

Use Value: ±1% channel matching eliminates visible color banding; 125°C operation sustains reliability in sun-exposed enclosures.

Use Scenario: High-resolution outdoor video walls with >10,000 LEDs per panel, refreshed at ≥60 Hz.

IC Role / Device Role / Timing Role: Serial-input LED driver enabling microcontroller-driven pixel mapping with minimal I/O usage.

Use Value: 25 MHz clock supports real-time video streaming; OE pin enables hardware-synchronized global dimming.

Stage Lighting Fixtures

Industrial Machine Vision Illumination

Use Scenario: Programmable moving-head lights with independently controllable RGB+white LED clusters.

IC Role / Device Role / Timing Role: Current-regulated sink enabling precise analog dimming via PWM on OE, with latch-controlled static states.

Use Value: LE pin allows pre-loading of next frame while current frame remains lit, eliminating flicker during transitions.

Use Scenario: High-intensity strobed backlight for high-speed camera inspection systems (≥10 kfps).

IC Role / Device Role / Timing Role: Fast-switching LED driver synchronized to camera trigger via OE and CLK signals.

Use Value: 40–70 ns OE-to-OUT delay ensures sub-microsecond illumination pulses with no timing jitter.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLC59283RTJR	16-channel, 15–120 mA range, 30 MHz SPI interface, no R_EXT programming - uses internal DACs	Better suited for low-current indicator LEDs; lacks 16 V compliance and thermal robustness for power LEDs	Select when higher channel count and digital current control outweigh need for 500 mA drive and 16 V headroom
AL8863SP-13	Single-channel, 10–1500 mA, analog/dim-input control, no shift register - requires external MCU GPIO per channel	Designed for isolated AC/DC LED drivers; no serial interface or multi-channel integration	Choose for ultra-high-current single-string applications where daisy-chaining and digital control are unnecessary

Compared with TLC59283RTJR and AL8863SP-13, the STP04CM596XTTR uniquely balances 4-channel integration, 500 mA per channel, 16 V compliance, and daisy-chain capability - making it optimal for medium-power, space-constrained LED arrays where thermal management and timing precision are critical.

Availability

STP04CM596XTTR is available at Aetrix Electronics and suitable for outdoor signage, architectural lighting, and stage lighting applications requiring stable component supply, extended temperature operation, and high-current sink performance.

Supply support for STP04CM596XTTR 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, automotive ICs, and industrial control solutions.

The STP04CM596 belongs to ST's PowerLED Driver family, engineered specifically for high-reliability, thermally demanding LED lighting systems where precise current regulation and daisy-chain scalability are essential.

FAQ

What is the minimum R_EXT value supported, and what output current does it yield?

The minimum recommended R_EXT is 160 Ω, which sets the output current to approximately 500 mA per channel at V_DD = 5 V. This value is verified in Table 6 (IOL2) of the datasheet; using lower resistance risks exceeding the 500 mA absolute maximum rating and may degrade current accuracy or thermal safety.

Can STP04CM596XTTR drive LEDs with forward voltage >16 V?

No - the device specifies a maximum output voltage (V_O) of 16 V in absolute maximum ratings and guaranteed operating conditions. Driving LED strings with total V_F >16 V will cause output saturation, loss of current regulation, and potential thermal overstress; design must ensure V_F ≤16 V per channel.

How does the TSSOP16 exposed pad affect thermal performance compared to SO-14?

The TSSOP16 exposed pad reduces junction-to-ambient thermal resistance to 37.5 °C/W (multi-layer PCB), versus 105 °C/W for SO-14. This 64% improvement enables ~2× higher continuous power dissipation (≈2 W vs ≈0.7 W), critical for sustained 500 mA operation in enclosed lighting fixtures.

Is the SDO pin compatible with 3.3 V logic when VDD = 5 V?

Yes - the SDO output is CMOS-compatible with rail-to-rail swing: VOH = V_DD − 0.4 V (≥4.6 V) and VOL = 0.4 V, both meeting 3.3 V logic thresholds. No level-shifting is needed when cascading to a 3.3 V microcontroller or next STP04CM596 in the chain.

STP04CM596XTTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 16-TSSOP (0.173", 4.40mm Width) Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: Linear

Topology:: Shift Register

Internal Switch(s):: Yes

Number of Outputs:: 4

Voltage - Supply (Min):: 3.3V

Voltage - Supply (Max):: 5.5V

Voltage - Output:: 16V

Current - Output / Channel:: 500mA

Frequency:: 25MHz

Dimming:: -

Applications:: -

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-TSSOP-EP

STP04CM596XTTR FAQ

1.How can I place an order for STP04CM596XTTR through Aetrix?

Please submit a Request for Quotation (RFQ) for STP04CM596XTTR 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 STP04CM596XTTR reliable?

The price and inventory of STP04CM596XTTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP04CM596XTTR is usually 5 days.

3.What payment methods are accepted for STP04CM596XTTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP04CM596XTTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STP04CM596XTTR?

STP04CM596XTTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STP04CM596XTTR 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 STP04CM596XTTR?

For technical support, including STP04CM596XTTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP04CM596XTTR requirements.

6.How does Aetrix verify that STP04CM596XTTR is sourced from the original manufacturer or authorized distributors?

All STP04CM596XTTR 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 STP04CM596XTTR meets industry standards.

7.What is the process for return or replacement of STP04CM596XTTR?

All STP04CM596XTTR units undergo pre-shipment inspection (PSI). If there is an issue with STP04CM596XTTR, 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 STP04CM596XTTR part is unused and in its original packaging.

Return procedure for STP04CM596XTTR:

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…