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

STMicroelectronics STP08CP05MTR

Name: STP08CP05MTR
Brand: STMicroelectronics
SKU: STP08CP05MTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STP08CP05MTR

Manufacturer:: STMicroelectronics

Category:: LED Drivers

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: STP08CP05MTR.pdf

Description:: IC LED DRIVER LINEAR 100MA 16SO

Quantity:: RFQ Add To RFQ list

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Inventory:1,549

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Product details

Overview

STP08CP05MTR from STMicroelectronics is an 8-bit serial-in, parallel-out constant-current LED driver IC with eight regulated current sinks (5–100 mA), 30 MHz clock support, and adjustable output current via external R_EXT. It operates from 3.0–5.5 V, features active-low OE for PWM dimming, and drives LED panels in signage and display systems where precise per-channel current matching and thermal efficiency are critical.

For engineers reviewing the STP08CP05MTR datasheet, STP08CP05MTR pinout, STP08CP05MTR application, or STP08CP05MTR equivalent, key selection criteria include output current adjustability via R_EXT, 11 ns typical current setup time, TSSOP-16 exposed-pad thermal performance (R_thJA = 37.5 °C/W), and backward compatibility with STP8C/L596 footprint and function.

Technical Context

The STP08CP05 integrates an 8-bit shift register cascaded to an 8-bit D-type storage latch, enabling synchronous data loading and output latching. Its output stage uses eight matched current-regulated sinks with ±1.5% inter-channel accuracy at ≥1.3 V output voltage and ±3% unit-to-unit variation across 20–100 mA range.

It supports high-speed cascade operation up to 30 MHz with 7 ns data setup and 4 ns hold times, while OE-controlled blanking enables 0–100% LED brightness control. Thermal protection (170 °C) disables outputs only-preserving logic functionality during overtemperature events.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply voltage	3.0–5.5 V - compatible with 3.3 V microcontrollers and legacy 5 V systems
Output current range	5–100 mA per channel - set precisely via external R_EXT resistor (124 Ω to 6.74 kΩ)
Current accuracy	±1.5% between channels at ≥1.3 V - ensures uniform LED brightness across 8 outputs
Max clock frequency	30 MHz - enables fast LED panel refresh and high-volume serial data throughput
Output rise/fall time	4–8 ns (rise), 11–17 ns (fall) at 5 V - supports clean switching and reduced EMI in dense LED arrays
Thermal resistance	37.5 °C/W (TSSOP-16 exposed pad) - 2.5× better dissipation than standard TSSOP, enabling higher sustained current
ESD rating	2.5 kV HBM, 200 V MM - robust handling in manufacturing and field assembly environments

Pinout & Package

STP08CP05MTR is supplied in SO-16 package (10.0 × 6.2 mm, 1.75 mm height), with gull-wing leads and RoHS-compliant ECOPACK® finish. The exposed pad variant is not used in this order code; thermal path relies on PCB copper area under body.

Pin/Terminal	Circuit Role	Design Meaning
1 GND	Ground reference	Common return for all internal logic and output current sinks; must be low-impedance connection
2 SDI	Serial data input	CMOS-compatible input accepting 3.3 V logic; feeds shift register MSB-first
3 CLK	Clock input	Edge-triggered (rising) clock; 20 ns minimum pulse width supports 30 MHz operation
4 LE	Latch enable	Transfers shift register contents to output latch on rising edge; holds outputs stable during data load
5–12 OUT0–OUT7	Constant-current outputs	Sink terminals driving LED cathodes; each delivers regulated current set by R_EXT
13 OE	Output enable (active low)	Hardware blanking control for PWM dimming; overrides latch state when pulled low
14 SDO	Serial data output	Daisy-chain capability: shifted-out MSB of current device feeds SDI of next in chain
15 R-EXT	Current programming	Connects external resistor to set full-scale output current; I_OUT ∝ 1/R_EXT
16 VDD	Power supply	3.0–5.5 V input; decoupling capacitor required near pin for noise immunity

Key Features

Feature	Design Value
Adjustable constant-current sink	Per-channel current set from 5–100 mA using single external resistor - eliminates per-channel trimming
High-speed serial interface	30 MHz clock tolerance with 7 ns data setup - enables >2.4 Mbps data rate for real-time LED updates
Backward-compatible footprint	SO-16 pinout matches STP8C/L596 - allows drop-in replacement without PCB redesign
Thermal protection	170 °C junction shutdown - protects outputs during overload or poor heatsinking while preserving logic state
Low-voltage logic compatibility	3.3 V microcontroller drive without level shifting - reduces BOM count and layout complexity

Applications

LED Signage Panels

Industrial HMI Displays

Use Scenario: Outdoor alphanumeric LED signs requiring uniform brightness across hundreds of segments driven by multiplexed columns.

IC Role / Device Role / Timing Role: Constant-current sink for column drivers in 8×N matrix architecture; serially loaded per frame via microcontroller SPI interface.

Use Value: ±1.5% inter-channel current matching prevents visible luminance banding; 30 MHz clock enables full-panel update at >120 Hz without flicker.

Use Scenario: Factory-floor operator interfaces with red/green status indicators and segmented bar graphs.

IC Role / Device Role / Timing Role: LED driver for discrete status lights and analog-style bar displays; controlled via GPIO-shift-register interface.

Use Value: Active-low OE allows synchronized PWM dimming across all 8 outputs - simplifies brightness calibration and reduces MCU timer resource usage.

Architectural Lighting Controls

Test Equipment Front Panels

Use Scenario: Low-power decorative LED strips in commercial buildings, powered from 5 V distributed rails.

IC Role / Device Role / Timing Role: Current-regulated driver for RGB or monochrome LED strings; configured via I²C-to-SPI bridge or direct MCU GPIO.

Use Value: 20 V output voltage headroom supports up to 6 white LEDs (3.2 V each) in series per channel - reduces string count and improves reliability.

Use Scenario: Benchtop instruments with multi-segment LED indicators for voltage/current ranges, fault states, and mode selection.

IC Role / Device Role / Timing Role: Compact, thermally efficient LED driver replacing discrete transistor+resistor solutions on space-constrained PCBs.

Use Value: SO-16 package with 37.5 °C/W thermal resistance enables 80 mA/channel continuous operation without heatsink - saves board area and assembly cost.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLC5916IPW	16-bit output, fixed 12-bit current resolution; no R_EXT adjustment - current set digitally via I²C	Requires I²C host and firmware overhead; lacks OE-based hardware PWM blanking	Preferred when digital current tuning and channel grouping are needed over analog simplicity
STP8C596MTR	Same SO-16 footprint and pinout; lower max current (15 mA), no thermal protection, no exposed pad option	Legacy part with limited thermal margin - unsuitable for >20 mA continuous per channel	Select only for cost-sensitive, low-brightness applications where thermal derating is acceptable

Compared with TLC5916IPW and STP8C596MTR, STP08CP05MTR uniquely balances analog current adjustability, hardware PWM control, thermal safety, and backward compatibility - making it optimal for industrial LED panels requiring long-term stability and minimal firmware dependency.

Availability

STP08CP05MTR is available at Aetrix Electronics and suitable for LED signage, industrial HMIs, architectural lighting controls, and test equipment front panels requiring stable component supply, consistent current regulation, and SO-16 footprint continuity.

Supply support for STP08CP05MTR 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, designing and manufacturing analog, mixed-signal, power, and microcontroller products for industrial, automotive, and consumer markets.

The STP08CP05 belongs to ST's LED driver portfolio targeting low-voltage, high-precision panel display applications - emphasizing thermal resilience, current accuracy, and seamless integration with 3.3 V microcontrollers.

FAQ

What is the minimum recommended R_EXT value for STP08CP05MTR?

The minimum R_EXT is 124 Ω, enabling maximum output current of 130 mA per channel at 25 °C. However, the datasheet specifies 100 mA as the absolute maximum rated output current; operating above this voids guaranteed specifications and risks thermal overstress without adequate PCB copper area.

Can STP08CP05MTR drive LEDs in series across multiple outputs?

No - each OUT0–OUT7 is an independent constant-current sink with common anode connection. To drive series LEDs, connect their anodes to a shared positive rail (≤20 V), and route cathodes individually to OUT pins. Series connection *between* outputs is electrically invalid and violates the device topology.

Does STP08CP05MTR require external pull-up resistors on SDI or CLK?

No - internal weak pull-up (150–600 kΩ) and pull-down (100–400 kΩ) resistors are integrated on SDI, CLK, LE, OE, and SDO. External resistors are unnecessary unless signal integrity demands stronger termination in noisy environments or long trace layouts.

How does thermal protection behave during overtemperature events?

At ~170 °C junction temperature, thermal protection disables *only* the eight output current sinks - the shift register, latch, and logic remain fully operational. Outputs resume automatically once junction temperature falls below the hysteresis threshold (~155 °C), enabling graceful recovery without system reset.

STP08CP05MTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 16-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: Linear

Topology:: Shift Register

Internal Switch(s):: Yes

Number of Outputs:: 8

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:: 16-SO

STP08CP05MTR FAQ

1.How can I place an order for STP08CP05MTR through Aetrix?

Please submit a Request for Quotation (RFQ) for STP08CP05MTR 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 STP08CP05MTR reliable?

The price and inventory of STP08CP05MTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP08CP05MTR is usually 5 days.

3.What payment methods are accepted for STP08CP05MTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP08CP05MTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STP08CP05MTR?

STP08CP05MTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STP08CP05MTR 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 STP08CP05MTR?

For technical support, including STP08CP05MTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP08CP05MTR requirements.

6.How does Aetrix verify that STP08CP05MTR is sourced from the original manufacturer or authorized distributors?

All STP08CP05MTR 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 STP08CP05MTR meets industry standards.

7.What is the process for return or replacement of STP08CP05MTR?

All STP08CP05MTR units undergo pre-shipment inspection (PSI). If there is an issue with STP08CP05MTR, 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 STP08CP05MTR part is unused and in its original packaging.

Return procedure for STP08CP05MTR:

1.Submit a request within 90 days.

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

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