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 STP08C596B1

Name: STP08C596B1
Brand: STMicroelectronics
SKU: STP08C596B1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: STP08C596B1

Manufacturer:: STMicroelectronics

Category:: LED Drivers

Package:: 16-DIP (0.300", 7.62mm)

Datasheet:: STP08C596B1.pdf

Description:: IC LED DRIVER LINEAR 120MA 16DIP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,632

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

Product details

Overview

STP08C596B1 from STMicroelectronics is an 8-channel constant-current LED sink driver in DIP-16 package, featuring serial-in/parallel-out shift register architecture, adjustable output current (15–120 mA per channel via external R_EXT), 25 MHz clock support, and 16 V output voltage capability for driving multiple LEDs in series - deployed in industrial LED signage and panel displays.

For engineers reviewing the STP08C596B1 datasheet, STP08C596B1 pinout, STP08C596B1 application, or STP08C596B1 equivalent, key selection criteria include guaranteed ±3% channel-to-channel current matching, /OE-controlled output enable with 400 ns pulse width minimum, latch propagation delay under 250 ns, and thermal resistance of 90 °C/W in DIP-16 for stable high-density LED array operation.

Technical Context

The STP08C596B1 integrates an 8-bit shift register cascaded to an 8-bit D-type storage register, enabling synchronous serial data loading and parallel latched output control. Its output stage uses sixteen regulated current sources (eight active channels plus internal redundancy) with precision current-setting via R_EXT at Pin 15.

It operates with TTL/CMOS-compatible inputs (V_IL ≤ 0.3V_DD, V_IH ≥ 0.7V_DD), supports fail-safe serial-out edge-triggering on clock falling edges, and maintains functional integrity across –40°C to +125°C with 16 V absolute max output voltage rating.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Channels	8 constant-current sink outputs (OUT0–OUT7), each independently controllable via shift/latch sequence
Output Current Range	15–120 mA per channel, set by external R_EXT (e.g., 910 Ω → 20.7 mA typ., 360 Ω → 51.0 mA typ.)
Current Matching Accuracy	±3% between channels, ±10% between ICs - ensures uniform LED brightness across display rows/columns
Clock Frequency	Up to 25 MHz - enables high-speed LED refresh for flicker-free full-panel updates at >1 kHz frame rates
Output Voltage Capability	16 V max - supports up to 5 standard red/green LEDs (2.2 V each) in series per channel
Propagation Delay	t_PLH1 = 280 ns max (CLK→OUT), t_PLH2 = 250 ns max (/LE→OUT) - critical for tight timing in cascaded LED driver chains
Supply Voltage	4.5–5.5 V - compatible with standard 5 V logic rails and tolerant of board-level ripple

Pinout & Package

DIP-16 package with through-hole mounting, 0.3-inch body width, 25 parts per tube, and thermal resistance of 90 °C/W (junction-to-ambient).

Pin/Terminal	Circuit Role	Design Meaning
1 GND	Ground reference	Common return path for all output currents and logic circuitry; must be low-impedance to minimize voltage offset
2 SDI	Serial data input	Accepts 8-bit data stream synchronized to CLK; LSB-first protocol for daisy-chained configurations
3 CLK	Clock input	Drives shift register on rising edge; falling edge triggers SDO update - enables seamless multi-device cascading
4 /LE	Latch enable (active high)	Transfers shift register contents to output latches; asynchronous load allows independent data buffering and output update
5–12 OUT0–OUT7	Constant-current sink outputs	Each drives LED cathode to GND; current magnitude set globally by R_EXT; no external current-limiting resistors required
13 /OE	Output enable (active low)	Disables all outputs simultaneously with 400 ns min pulse width; used for PWM dimming or fault shutdown
14 SDO	Serial data output	Pass-through of SDI after 8 clocks; enables daisy-chaining without external wiring or logic gates
15 R-EXT	Current programming terminal	Connects external resistor to GND to set full-scale output current; tolerance directly impacts brightness accuracy
16 VDD	Positive supply	5 V nominal supply powering logic and output stages; decoupling capacitor required within 1 cm of pin

Key Features

Feature	Design Value
Adjustable constant-current sink	Per-channel current set externally via single R_EXT, eliminating per-LED resistors and reducing BOM count
High-speed serial interface	25 MHz clock support with sub-300 ns propagation delays enables real-time LED matrix reconfiguration
Thermal robustness	Rated for –40°C to +125°C operation with 90 °C/W DIP-16 thermal resistance - suitable for enclosed industrial enclosures
Output voltage headroom	16 V output capability allows stacking multiple LEDs per channel without external boost circuitry
Channel-to-channel matching	±3% current matching ensures consistent luminance across 8-output segments in segmented displays

Applications

Outdoor LED Signage

Industrial Panel Displays

Use Scenario: Large-format monochrome or tri-color message boards exposed to ambient temperature swings and EMI-rich factory environments.

IC Role / Device Role / Timing Role: Constant-current sink driver controlling individual LED segments in multiplexed 8×N arrays; handles serial data chaining across modules.

Use Value: 125°C rating and ±3% current matching maintain uniform brightness despite thermal drift; 16 V output supports longer LED strings per segment, reducing interconnect complexity.

Use Scenario: Operator interface panels in PLC-controlled machinery requiring high-reliability status indication and alarm lighting.

IC Role / Device Role / Timing Role: LED driver for discrete status indicators and bar-graph displays; driven by microcontroller GPIO via SPI-like serial interface.

Use Value: /OE pin enables hardware-based emergency blanking; latch functionality isolates display updates from real-time control logic, preventing visual artifacts during state transitions.

Point-of-Sale Display Modules

Transportation Information Panels

Use Scenario: Compact retail price displays with space-constrained PCB layouts and need for low component count.

IC Role / Device Role / Timing Role: Integrated shift-register + current sink replacing discrete transistors and resistors; reduces footprint by >60% vs discrete solution.

Use Value: Single R_EXT sets all 8 channels, simplifying calibration; DIP-16 package supports manual assembly and rework in low-volume production.

Use Scenario: Bus/train destination signs operating continuously in vibration-prone, wide-temperature environments.

IC Role / Device Role / Timing Role: Primary LED driver in modular sign cabinets with daisy-chained STP08C596B1 units controlled by central controller.

Use Value: SDO pass-through eliminates external buffers in long chains; 25 MHz clock sustains full-panel refresh at 120 Hz even with 32+ devices cascaded.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STPIC6C595	Fixed 100 mA output current per channel; no R_EXT adjustment; identical pinout and logic interface	Lacks programmable brightness control; suited for fixed-intensity applications only	Select when cost sensitivity outweighs dimming flexibility and thermal derating is acceptable
TLC5916IDR	16-channel, I²C interface, 3–5.5 V supply; ±2% current matching; integrated thermal shutdown	Requires I²C host, not SPI-compatible; higher channel count but larger SOIC-16 footprint	Prefer for systems needing finer brightness resolution, diagnostics, or higher integration density

Compared with STPIC6C595, STP08C596B1 adds current adjustability and tighter matching; versus TLC5916IDR, it offers simpler serial interface and lower system-level software overhead at the cost of fewer channels and no fault reporting.

Availability

STP08C596B1 is available at Aetrix Electronics and suitable for outdoor LED signage, industrial panel displays, and point-of-sale display modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for STP08C596B1 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, designing and manufacturing analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.

The STP08C596 belongs to ST's LED driver portfolio targeting high-reliability, medium-voltage display systems - engineered specifically for robustness in harsh environments and simplified design of multiplexed LED arrays.

FAQ

What is the maximum number of STP08C596B1 devices that can be daisy-chained reliably?

Up to 32 devices can be cascaded using the SDO-to-SDI connection while maintaining signal integrity at 25 MHz, provided PCB trace lengths are ≤10 cm per segment and proper termination is applied. Propagation delay accumulation remains within timing budget up to this count, as verified in ST's AN2427 application note.

Can STP08C596B1 drive RGB LEDs directly?

No - STP08C596B1 provides only common-anode compatible sink outputs (cathode switching). To drive RGB LEDs, external high-side switches or dedicated RGB drivers are required per color channel; the device can control one color per output with appropriate current setting.

How does R_EXT value affect thermal performance?

Lower R_EXT increases output current and total power dissipation. At 120 mA per channel with all outputs active, junction temperature rise exceeds 60°C in DIP-16 at 25°C ambient - derating to ≤80 mA per channel or adding heatsinking is recommended for continuous operation above 60°C ambient.

Is /OE pin compatible with microcontroller PWM for brightness control?

Yes - /OE accepts standard 3.3 V or 5 V logic signals and supports PWM frequencies up to 20 kHz without timing violation, as its 400 ns minimum pulse width allows 25% duty cycle at 10 kHz. This enables global dimming without modifying shift register data.

STP08C596B1 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 16-DIP (0.300", 7.62mm)

Packaging:: Tube

Product Status:: Obsolete

Type:: Linear

Topology:: Shift Register

Internal Switch(s):: Yes

Number of Outputs:: 8

Voltage - Supply (Min):: 4.5V

Voltage - Supply (Max):: 5.5V

Voltage - Output:: 16V

Current - Output / Channel:: 120mA

Frequency:: 25MHz

Dimming:: -

Applications:: -

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 16-DIP

STP08C596B1 FAQ

1.How can I place an order for STP08C596B1 through Aetrix?

Please submit a Request for Quotation (RFQ) for STP08C596B1 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 STP08C596B1 reliable?

The price and inventory of STP08C596B1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP08C596B1 is usually 5 days.

3.What payment methods are accepted for STP08C596B1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP08C596B1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STP08C596B1?

STP08C596B1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STP08C596B1 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 STP08C596B1?

For technical support, including STP08C596B1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP08C596B1 requirements.

6.How does Aetrix verify that STP08C596B1 is sourced from the original manufacturer or authorized distributors?

All STP08C596B1 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 STP08C596B1 meets industry standards.

7.What is the process for return or replacement of STP08C596B1?

All STP08C596B1 units undergo pre-shipment inspection (PSI). If there is an issue with STP08C596B1, 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 STP08C596B1 part is unused and in its original packaging.

Return procedure for STP08C596B1:

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…