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STMicroelectronics STP16CP596B1R
- Part No.:
- STP16CP596B1R
- Manufacturer:
- STMicroelectronics
- Category:
- LED Drivers
- Package:
- 24-DIP (0.300", 7.62mm)
- Datasheet:
-
STP16CP596B1R.pdf
- Description:
- IC LED DRIVER LINEAR 50MA 24DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,984
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Product details
Overview
STP16CP596B1R from STMicroelectronics is a 16-bit constant-current LED sink driver in DIP-24 package, designed for low-voltage (3–5.5 V) LED panel displays. It delivers precise 3–50 mA per channel via external REXT, supports 25 MHz serial data transfer, and guarantees 16 V output driving capability to drive multiple LEDs in series.
For engineers reviewing the STP16CP596B1R datasheet, STP16CP596B1R pinout, STP16CP596B1R application, or STP16CP596B1R equivalent, key selection criteria include adjustable current accuracy (±1% to ±3% depending on VOUT and IOUT), thermal resistance (60 °C/W in DIP-24), latch-controlled parallel output update, and 3.3 V microcontroller compatibility.
Technical Context
The device integrates a 16-bit serial-in/parallel-out shift register cascaded with a 16-bit D-type storage latch, enabling synchronous data loading and output updating. Output enable (OE) is active-low and provides global blanking control independent of latch state.
Each of the 16 output channels uses a matched current source regulated by a single external resistor (REXT), delivering consistent current across bits with ±1% to ±3% inter-channel error at ≥0.5 V output voltage and ±6% max mismatch between ICs. Serial data out (SDO) transitions on CLK falling edge for daisy-chain expansion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current Range | 3–50 mA per channel, set by external REXT; enables brightness tuning without PWM |
| Supply Voltage | 3.0–5.5 V; compatible with 3.3 V and 5 V logic systems |
| Max Output Voltage | 16 V; supports up to ~5 white/blue LEDs in series at typical forward voltage |
| Serial Clock Frequency | 25 MHz; enables >400 kSPS full 16-bit updates for high-refresh LED panels |
| Current Accuracy (per bit) | ±1% to ±3% at ≥0.5 V VOUT; ensures uniform LED luminance across display rows/columns |
| Thermal Resistance (RthJA) | 60 °C/W (DIP-24); allows 800 mA total GND current handling within safe junction temperature limits |
| Propagation Delay (CLK→OUT) | 250–280 ns; supports tight timing margins in synchronized LED scan architectures |
Pinout & Package
STP16CP596B1R is housed in a 24-pin plastic DIP package (0.600" width) with through-hole mounting. The exposed pad variant is not used in this orderable part; thermal performance relies on PCB copper area under the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Common return for all 16 outputs and internal logic; must connect to low-impedance ground plane |
| 2 SDI | Serial data input | CMOS-compatible input accepting 3.3 V or 5 V logic; feeds shift register MSB-first |
| 3 CLK | Clock input | Rising-edge triggered for data sampling; falling edge drives SDO transition for daisy-chaining |
| 4 LE | Latch enable | Active-high; transfers shift register contents to output latches; enables simultaneous LED update |
| 5–20 OUT0–OUT15 | Sink output terminals | 16 constant-current sinks; each drives cathode of LED string; open-collector equivalent with 16 V rating |
| 21 OE | Output enable | Active-low global blanking; overrides latch state to force all outputs OFF instantly |
| 22 SDO | Serial data output | Shift register Q16 output; changes on CLK falling edge for multi-device cascading |
| 23 R-EXT | Current programming node | Connects external resistor to GND; sets all 16 channels identically (e.g., 1 kΩ → 20 mA @ VDD = 5 V) |
| 24 VDD | Power supply | 3.0–5.5 V input; powers logic and current sources; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable constant current | Single REXT sets identical 3–50 mA per channel-eliminates per-channel resistors and reduces BOM count |
| Daisy-chain capable | SDO synchronized to CLK falling edge enables seamless multi-device cascading without added timing logic |
| High-speed serial interface | 25 MHz clock supports full 16-bit load in ≤640 ns-critical for high-frame-rate LED video walls |
| Independent latch & blanking | LE controls data transfer to outputs; OE provides flicker-free global blanking-enables precise PWM dimming timing |
| 16 V output compliance | Supports longer LED strings (e.g., 5× blue LEDs @ 3.2 V) without external boost circuitry |
Applications
| LED Video Wall Driver | Industrial HMI Display |
|---|---|
|
Use Scenario: Indoor full-color LED video wall with 16×16 pixel modules requiring uniform brightness and high refresh rate. IC Role / Device Role / Timing Role: Sink driver for red/green/blue LED cathodes; receives serialized pixel data and updates all 16 outputs simultaneously via LE pulse. Use Value: ±1% current matching ensures color consistency across modules; 25 MHz interface sustains >3840 Hz subframe rate for flicker-free operation. |
Use Scenario: Factory-floor human-machine interface with segmented LED indicators and status bars operating in wide temperature range. IC Role / Device Role / Timing Role: Constant-current sink for discrete indicator LEDs and bar-graph arrays; driven by industrial PLC with 3.3 V logic levels. Use Value: 3.0–5.5 V supply range accommodates brownout conditions; -40 to +125 °C operation ensures reliability in uncontrolled environments. |
| Architectural Lighting Controller | Medical Equipment Status Panel |
|
Use Scenario: Tunable-white architectural lighting system using long LED strings powered from 24 V bus with local current regulation. IC Role / Device Role / Timing Role: Local current sink per LED segment; interfaces to DALI or proprietary MCU controller via SPI-like serial interface. Use Value: 16 V output headroom allows direct connection to 24 V rail with 8 V drop across string-no external MOSFET needed. |
Use Scenario: Diagnostic imaging equipment status panel requiring EMI-robust, fail-safe LED indication with certified thermal margin. IC Role / Device Role / Timing Role: Safety-critical LED driver with guaranteed blanking (OE) and latch isolation to prevent spurious illumination during reset. Use Value: Active-low OE enables hardware-level emergency shutdown; DIP-24 package simplifies IPC-compliant solder inspection and rework. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED sink driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC59283DR | 16-bit sink driver with internal current DAC (no REXT); 17 V output; 30 MHz max clock | Requires I²C configuration; lacks LE latch-relies on auto-latch or external timing | Choose when digital current tuning and smaller footprint (SOIC-24) outweigh need for simple analog trim |
| STPIC6C595MTR | Legacy 8-bit shift register + sink driver; no REXT adjustment; fixed 100 mA max per channel | Lower channel count requires two devices per 16-bit row; higher thermal dissipation per channel | Choose only for legacy board reuse where STP16CP596B1R's adjustable current and 16-bit integration are unnecessary |
Compared with TLC59283DR, STP16CP596B1R offers simpler analog current setting and deterministic latch timing; compared with STPIC6C595MTR, it doubles channel density and improves current uniformity while reducing component count and thermal stress per LED row.
Availability
STP16CP596B1R is available at Aetrix Electronics and suitable for LED video walls, industrial HMIs, and architectural lighting systems requiring stable component supply, long-term obsolescence management, and through-hole assembly compatibility.
Supply support for STP16CP596B1R 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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
The STP16CP596 belongs to ST's LED driver product line, engineered specifically for cost-sensitive, high-reliability LED panel applications where precise current matching, thermal efficiency, and 3.3 V logic compatibility are critical.
FAQ
What is the maximum number of STP16CP596B1R devices that can be daisy-chained?
Up to 16 devices can be cascaded using SDI/SDO pins without violating timing margins, provided total propagation delay remains within setup/hold windows of the controlling MCU. At 25 MHz, chain length is limited by cumulative tPLH/tPHL (≤50 ns per stage) and PCB trace skew-not by protocol constraints.
Does STP16CP596B1R require external pull-up resistors on SDI or SDO lines?
No external pull-ups are required: SDI has internal 150–600 kΩ pull-up and 100–400 kΩ pull-down; SDO is actively driven CMOS output. Pull-ups may be added only if interfacing with open-drain controllers-but standard 3.3 V/5 V MCUs drive SDI directly.
How does R-EXT resistor tolerance affect output current accuracy?
R-EXT tolerance directly scales output current error: a 1% resistor yields ±1% typical current deviation. Combined with ±1% IC matching (at ≥0.5 V VOUT), total worst-case channel-to-channel variation is ±2%. For <±0.5% luminance variation, use 0.1% REXT and operate above 0.5 V VOUT.
Can STP16CP596B1R drive multiplexed LED matrices without external transistors?
Yes-it supports direct column-sinking in 1:8 or 1:16 multiplexed matrices when paired with row-side PNP or PMOS high-side switches. Its 16 V output compliance and 50 mA per channel allow driving 3–5 LEDs in series per column at common scan frequencies (1–2 kHz).
STP16CP596B1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 24-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Linear
- Topology:
- Shift Register
- Internal Switch(s):
- Yes
- Number of Outputs:
- 16
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 16V
- Current - Output / Channel:
- 50mA
- Frequency:
- 25MHz
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 24-DIP
STP16CP596B1R FAQ
1.How can I place an order for STP16CP596B1R through Aetrix?
Please submit a Request for Quotation (RFQ) for STP16CP596B1R 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 STP16CP596B1R reliable?
The price and inventory of STP16CP596B1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP16CP596B1R is usually 5 days.
3.What payment methods are accepted for STP16CP596B1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP16CP596B1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STP16CP596B1R?
STP16CP596B1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STP16CP596B1R 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 STP16CP596B1R?
For technical support, including STP16CP596B1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP16CP596B1R requirements.
6.How does Aetrix verify that STP16CP596B1R is sourced from the original manufacturer or authorized distributors?
All STP16CP596B1R 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 STP16CP596B1R meets industry standards.
7.What is the process for return or replacement of STP16CP596B1R?
All STP16CP596B1R units undergo pre-shipment inspection (PSI). If there is an issue with STP16CP596B1R, 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 STP16CP596B1R part is unused and in its original packaging.
Return procedure for STP16CP596B1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STP16CP596B1R 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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