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STMicroelectronics STP04CM596M1
- Part No.:
- STP04CM596M1
- Manufacturer:
- STMicroelectronics
- Category:
- LED Drivers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
STP04CM596M1.pdf
- Description:
- IC LED DRIVER LINEAR 500MA 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,564
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Product details
Overview
STP04CM596M1 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. It delivers 80–500 mA per channel, supports 25 MHz serial clocking, guarantees 16 V output voltage capability, and uses a single external REXT resistor to set current. It is used in outdoor signage, architectural lighting, and industrial status displays requiring precise per-channel current regulation.
For engineers reviewing the STP04CM596M1 datasheet, STP04CM596M1 pinout, STP04CM596M1 application, or STP04CM596M1 equivalent, key selection criteria include output current adjustability via REXT, 16 V output compliance for multi-LED strings, serial-in/parallel-out timing behavior, and thermal performance in TSSOP16 exposed-pad packaging.
Technical Context
The device integrates a 4-bit serial-in/parallel-out shift register cascaded with a 4-bit D-type storage latch, enabling synchronized data loading and output updating. Clock-to-output propagation delay is as low as 40 ns (tPHL) and 160 ns (tPLH), with latch and output-enable control supporting precise timing of LED state transitions.
Each output channel contains a regulated current sink with ±1% typical inter-channel matching and ±6% unit-to-unit accuracy across 80–500 mA. The output stage operates up to 16 V, allowing series connection of ≥5 white/blue LEDs (VF ≈ 3.2 V) per channel without external boost circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output channels | 4 independent constant-current sinks, each programmable via shared REXT |
| Output current range | 80–500 mA per channel; set by external resistor (e.g., 160 Ω → ~500 mA) |
| Max output voltage | 16 V - supports ≥5-series high-power LEDs at 5 V supply |
| Serial clock frequency | 25 MHz - enables fast refresh rates for dynamic LED displays |
| Inter-channel current match | ±1% typ. - ensures uniform brightness across LED segments |
| Supply voltage | 3.3–5.5 V - compatible with standard logic-level microcontrollers |
| Operating temperature | −40°C to +125°C - suitable for industrial and outdoor ambient conditions |
Pinout & Package
STP04CM596M1 is supplied in SO-14 package (14-pin small outline), with GND, VDD, SDI, CLK, LE, OE, SDO, and four OUT pins. Thermal performance is enhanced by internal thermal pad design (though not exposed in SO-14 variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Common return path for all current sinks and logic inputs; must be low-impedance |
| SDI (Pin 2) | Serial data input | Accepts LSB-first 4-bit data stream synchronized to CLK rising edge |
| CLK (Pin 3) | Clock input | Drives shift register on rising edge; 25 MHz max rate defines update bandwidth |
| LE (Pin 4) | Latch enable | Transfers shift register contents to output latches on high-to-low transition |
| OUT0–OUT3 (Pins 5–8) | Current sink outputs | Each drives cathode of LED string; sinks up to 500 mA with 16 V compliance |
| OE (Pin 11) | Output enable (active low) | Global shutdown: pulls all outputs high-Z when high; enables sinking when low |
| SDO (Pin 12) | Serial data output | Shifts out MSB of previous load on CLK falling edge-enables daisy-chaining |
| R-EXT (Pin 13) | Current programming | Connects external resistor to set all four output currents simultaneously |
| VDD (Pin 14) | Power supply | 3.3–5.5 V logic and analog supply; powers internal regulators and logic |
Key Features
| Feature | Design Value |
|---|---|
| Single-resistor current setting | Eliminates per-channel trimming; enables batch calibration and production repeatability |
| Daisy-chainable serial interface | SDO output allows stacking multiple STP04CM596 devices with one MCU GPIO |
| 16 V output compliance | Supports long LED strings without external DC-DC boost, reducing BOM count |
| High-speed 25 MHz clock | Enables >1 kHz frame rates for 4-channel PWM dimming using MCU-controlled serial load |
| −40°C to +125°C operation | Validated for use in uncooled outdoor enclosures and industrial control panels |
Applications
| Outdoor Full-Color Signage | Industrial Status Lighting |
|---|---|
Use Scenario: Large-format RGB LED displays mounted on building façades exposed to sunlight and temperature extremes. IC Role / Device Role / Timing Role: Constant-current sink driver controlling red/green/blue LED modules per pixel; receives serialized color data via SPI-like interface. Use Value: 16 V output headroom enables 5-series blue LEDs per channel; ±1% inter-channel match prevents hue shift across display area. | Use Scenario: Panel-mounted status indicators in factory HMIs, where reliability and brightness consistency are critical over 10+ years. IC Role / Device Role / Timing Role: LED driver for fault/warning/ready states; latched outputs ensure stable illumination during MCU reboots or communication gaps. Use Value: OE pin allows global blanking during system initialization; −40°C to +125°C rating eliminates derating in sealed metal enclosures. |
| Architectural Accent Lighting | Automated Test Equipment Indicators |
Use Scenario: Linear LED strips embedded in ceiling coves or stair treads, requiring uniform luminance and thermal resilience. IC Role / Device Role / Timing Role: High-current sink driving 350 mA white LEDs in series strings; REXT resistor sets consistent current across all zones. Use Value: 500 mA max per channel supports high-lumen LEDs; SO-14 package fits compact PCB layouts with minimal heatsinking. | Use Scenario: PCB-mounted status LEDs on ATE rack controllers, where rapid visual feedback and long-term calibration stability are required. IC Role / Device Role / Timing Role: Serially updated indicator driver receiving test-state bits from FPGA; SDO enables chaining across 12+ boards. Use Value: 25 MHz clock allows sub-millisecond status updates; ±6% unit-to-unit current tolerance ensures consistent LED intensity across production batches. |
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 |
|---|---|---|---|
| TLC59283PWPR | 16-channel, 12-bit PWM dimming, 120 mA/channel, no REXT current setting | Requires I²C interface and external PWM clock; better for grayscale control, lower per-channel current | Select when fine-grained PWM dimming is needed over simple on/off or analog current control |
| AL8863SP-13 | Single-channel, 1.5 A, asynchronous buck LED driver with analog/digital dimming | Switching topology; higher efficiency at >1 A but lacks multi-channel serialization | Select for high-efficiency single-string applications where thermal budget is constrained and serial control is unnecessary |
Compared with TLC59283PWPR and AL8863SP-13, STP04CM596M1 uniquely balances 4-channel serialization, 500 mA per channel, and resistor-based current setting-making it optimal for cost-sensitive, medium-current, multi-segment LED systems without need for PWM or switching regulation.
Availability
STP04CM596M1 is available at Aetrix Electronics and suitable for outdoor signage, industrial HMI panels, architectural lighting, and automated test equipment requiring stable component supply and long-lifecycle support.
Supply support for STP04CM596M1 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 STP04CM596 belongs to ST's PowerLED Driver product line, engineered specifically for high-reliability, medium-current LED array control in non-automotive industrial and commercial lighting applications.
FAQ
What is the function of the R-EXT pin?
The R-EXT pin connects an external resistor between VDD and this terminal to set the reference current for all four output channels. For example, a 160 Ω resistor yields ~500 mA per channel; a 910 Ω resistor yields ~82 mA. Current accuracy is ±1% between channels and ±6% across units at 25°C.
Can STP04CM596M1 drive LEDs in series?
Yes - each output channel supports up to 16 V compliance, enabling series connection of up to five typical white/blue power LEDs (VF ≈ 3.2 V each). The IC sinks current from the LED cathodes, so the anodes connect to a common positive rail (≤16 V).
How does the LE (Latch Enable) pin operate?
The LE pin transfers data from the internal shift register to the output latches on its high-to-low transition. While LE is high, new serial data shifts in but does not affect outputs; only when LE falls do all four outputs update simultaneously - preventing partial-frame flicker in displays.
Is STP04CM596M1 RoHS-compliant and lead-free?
Yes - STP04CM596M1 is manufactured in ECOPACK®-compliant SO-14 packaging with lead-free second-level interconnects, meeting JEDEC JESD97 standards. The inner box label indicates RoHS status, and soldering profiles follow ST's published lead-free reflow guidelines.
STP04CM596M1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 14-SO
STP04CM596M1 FAQ
1.How can I place an order for STP04CM596M1 through Aetrix?
Please submit a Request for Quotation (RFQ) for STP04CM596M1 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 STP04CM596M1 reliable?
The price and inventory of STP04CM596M1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP04CM596M1 is usually 5 days.
3.What payment methods are accepted for STP04CM596M1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP04CM596M1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STP04CM596M1?
STP04CM596M1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STP04CM596M1 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 STP04CM596M1?
For technical support, including STP04CM596M1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP04CM596M1 requirements.
6.How does Aetrix verify that STP04CM596M1 is sourced from the original manufacturer or authorized distributors?
All STP04CM596M1 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 STP04CM596M1 meets industry standards.
7.What is the process for return or replacement of STP04CM596M1?
All STP04CM596M1 units undergo pre-shipment inspection (PSI). If there is an issue with STP04CM596M1, 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 STP04CM596M1 part is unused and in its original packaging.
Return procedure for STP04CM596M1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STP04CM596M1 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
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