My Inquiry
My Account
STMicroelectronics STP08CL596MTR
- Part No.:
- STP08CL596MTR
- Manufacturer:
- STMicroelectronics
- Category:
- LED Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
STP08CL596MTR.pdf
- Description:
- IC LED DRIVER LINEAR 90MA 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,187
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STP08CL596MTR from STMicroelectronics is an 8-channel constant-current LED sink driver in SO-16 package, designed for serially controlled LED panel displays. It delivers adjustable 15–90 mA per channel via external REXT, supports 25 MHz clock input, operates down to 3 V supply, and guarantees 16 V output voltage capability for driving multiple LEDs in series.
For engineers reviewing the STP08CL596MTR datasheet, STP08CL596MTR pinout, STP08CL596MTR application, or STP08CL596MTR equivalent, key selection criteria include output current accuracy (±3% between bits), /OE-controlled blanking, SDO daisy-chaining capability, and thermal performance of the SO-16 package with 125 °C/W junction-to-ambient resistance.
Technical Context
The device integrates an 8-bit serial-in/parallel-out shift register cascaded with an 8-bit D-type storage latch, enabling synchronous data loading and output latching. Output stage uses sixteen regulated current sources - eight active sink channels plus internal redundancy - each programmable via single REXT resistor to set uniform current across all outputs.
Timing behavior is defined by strict setup/hold requirements (tSETUP(D) = 20 ns, tHOLD(D) = 15 ns) and propagation delays (tPLH1 = 250–280 ns, tPHL1 = 25–50 ns), supporting high-speed LED refresh in multiplexed displays. Serial data out (SDO) toggles on falling clock edge, enabling seamless daisy-chain expansion without additional control lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | 8 constant-current sink outputs, each independently controllable via shift register + latch |
| Output Current Range | 15–90 mA per channel, set precisely by external REXT (e.g., 470 Ω → ~50 mA) |
| Current Accuracy | ±3% matching between channels, ±10% variation across ICs - ensures uniform LED brightness |
| Clock Frequency | Up to 25 MHz - enables >200 kHz update rate for 8-bit data, suitable for flicker-free display refresh |
| Output Voltage Capability | 16 V max - supports up to 5 standard red/green LEDs (2.2 V each) in series per channel |
| Supply Voltage | 3.0–3.6 V typical operation - compatible with 3.3 V microcontrollers without level shifting |
| Propagation Delay | tPLH1 = 250–280 ns (CLK→OUT), enabling sub-500 ns channel enable timing |
Pinout & Package
STP08CL596MTR is supplied in SO-16 (Small Outline, 16-pin) package with standard 1.27 mm pitch and gull-wing leads. Thermal resistance is 125 °C/W (junction-to-ambient), optimized for PCB copper pour under exposed pad variants (not applicable to this SO-16 variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Common return for all current sinks and logic inputs; must be low-impedance path to minimize voltage drop |
| 2 SDI | Serial data input | CMOS-compatible input accepting 3.3 V logic; data shifted in MSB-first on rising CLK edge |
| 3 CLK | Clock input | Edge-triggered input controlling shift register advancement; supports up to 25 MHz operation |
| 4 /LE | Latch enable (active high) | Transfers shift register contents to output latch; asynchronous, no clock dependency |
| 5–12 OUT0–OUT7 | Constant-current sink outputs | Each drives LED cathode to GND; current magnitude set globally by REXT at Pin 15 |
| 13 /OE | Output enable (active low) | Global blanking control; pulls all outputs high-Z when asserted, enabling PWM dimming |
| 14 SDO | Serial data output | Shift register Q7 output; changes state on falling CLK edge for daisy-chaining |
| 15 R-EXT | Current programming terminal | Connects external resistor to GND to set output current; 910 Ω → 20 mA, 360 Ω → 50 mA |
| 16 VDD | Positive supply | 3.0–3.6 V nominal; powers logic and current sources; bypass capacitor required at pin |
Key Features
| Feature | Design Value |
|---|---|
| Daisy-chainable serial interface | SDO synchronized to falling CLK edge enables multi-device cascading without added control signals |
| Per-channel current regulation | Eight matched current sources eliminate need for individual current-limiting resistors per LED |
| High-speed 25 MHz clock support | Enables full 8-bit update in ≤320 ns, critical for high-refresh-rate LED matrix applications |
| Global output blanking (/OE) | Hardware-level PWM dimming control with <400 ns enable pulse width requirement |
| Wide output voltage compliance (16 V) | Supports series-connected LED strings up to 5× standard 2.2 V devices without external boost |
Applications
| LED Matrix Display Panels | Industrial Status Indicator Arrays |
|---|---|
|
Use Scenario: Driving 8×8 or 16×8 monochrome LED grids in industrial HMIs and signage. IC Role / Device Role / Timing Role: Serial-to-parallel current sink driver providing synchronized column activation and intensity control. Use Value: Eliminates discrete current-limiting resistors and reduces PCB footprint by 70% versus discrete solutions. |
Use Scenario: Multi-color status indicators on PLC I/O modules requiring precise brightness matching. IC Role / Device Role / Timing Role: Constant-current sink enabling uniform luminance across red/green/yellow LEDs despite Vf variance. Use Value: ±3% inter-channel current matching ensures consistent visual indication across 8 independent system states. |
| Automotive Interior Lighting Control | Test Equipment Front-Panel Displays |
|
Use Scenario: Backlighting for segmented dashboard controls operating across -40°C to +125°C ambient. IC Role / Device Role / Timing Role: High-voltage sink driver powering series-connected white LEDs with thermal-stable current regulation. Use Value: 16 V output capability allows 3× white LEDs (3.2 V each) per channel without external DC-DC conversion. |
Use Scenario: Dynamic LED bar graphs on benchtop instruments requiring rapid intensity updates. IC Role / Device Role / Timing Role: High-speed serial interface enabling real-time analog-level visualization at >1 kHz update rates. Use Value: 25 MHz clock tolerance supports 12-bit resolution bar graph updates within 500 µs per frame. |
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 |
|---|---|---|---|
| TLC5916IDR | 8-bit sink driver with 3–5.5 V supply, fixed 12-bit PWM dimming, no REXT current adjustment | Requires external MCU PWM generation; lacks analog current tuning via resistor | Select when precise software-controlled dimming is prioritized over hardware-set current calibration |
| STPIC6C595MTR | 8-bit shift register with open-drain outputs (no internal current regulation); requires external current-setting resistors | Higher BOM count and board area; less accurate current matching (±15% typical) | Select when cost sensitivity outweighs brightness uniformity requirements and thermal constraints allow discrete resistors |
Compared with TLC5916IDR and STPIC6C595MTR, STP08CL596MTR uniquely combines analog REXT-based current setting, ±3% channel matching, and 16 V output compliance - making it optimal for high-uniformity LED arrays where thermal stability and minimal external components are critical.
Availability
STP08CL596MTR is available at Aetrix Electronics and suitable for LED matrix display panels, industrial status indicator arrays, automotive interior lighting control, and test equipment front-panel displays requiring stable component supply across extended temperature ranges.
Supply support for STP08CL596MTR 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, microcontrollers, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STP08CL596 belongs to ST's LED driver product line, engineered specifically for high-reliability, low-component-count LED panel systems requiring precise current regulation and robust serial control in harsh environments.
FAQ
What is the minimum recommended REXT value for STP08CL596MTR?
The minimum REXT is determined by maximum output current (90 mA) and internal reference voltage (~1.25 V). Using IOUT ≈ 1.25 V / REXT, REXT(min) ≈ 13.9 Ω. However, datasheet testing confirms stable operation down to 250 Ω (14 mA), and values below 200 Ω risk exceeding thermal limits in SO-16 package at full load.
Can STP08CL596MTR drive RGB LEDs directly?
No - STP08CL596MTR provides only common-anode sink configuration with uniform current per channel. Driving RGB LEDs requires three independent current sources per pixel (one per color), which this single-channel-per-pin device cannot provide. It is suited for monochrome or segmented multi-color arrays where color channels are driven separately.
Does /OE assertion affect SDO functionality?
No - /OE only disables the output current sources (OUT0–OUT7); the shift register and SDO remain fully operational during /OE assertion. This allows continuous data streaming and daisy-chaining while blanking visible outputs, essential for flicker-free PWM dimming.
What is the maximum capacitive load allowed on any OUTx pin?
Maximum recommended load is 13 pF, as specified in switching characteristics test conditions (tPLH1, tPHL1). Exceeding this increases rise/fall times (tr = 200–250 ns, tf = 17–25 ns) and may cause timing violations at 25 MHz. Layout best practice: keep traces short and avoid stubs or connectors on OUTx lines.
STP08CL596MTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Linear
- Topology:
- Shift Register
- Internal Switch(s):
- Yes
- Number of Outputs:
- 8
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 3.6V
- Voltage - Output:
- 16V
- Current - Output / Channel:
- 90mA
- Frequency:
- 25MHz
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
STP08CL596MTR FAQ
1.How can I place an order for STP08CL596MTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STP08CL596MTR 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 STP08CL596MTR reliable?
The price and inventory of STP08CL596MTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP08CL596MTR is usually 5 days.
3.What payment methods are accepted for STP08CL596MTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP08CL596MTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STP08CL596MTR?
STP08CL596MTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STP08CL596MTR 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 STP08CL596MTR?
For technical support, including STP08CL596MTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP08CL596MTR requirements.
6.How does Aetrix verify that STP08CL596MTR is sourced from the original manufacturer or authorized distributors?
All STP08CL596MTR 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 STP08CL596MTR meets industry standards.
7.What is the process for return or replacement of STP08CL596MTR?
All STP08CL596MTR units undergo pre-shipment inspection (PSI). If there is an issue with STP08CL596MTR, 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 STP08CL596MTR part is unused and in its original packaging.
Return procedure for STP08CL596MTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STP08CL596MTR 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…
