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Texas Instruments SN75452BDRE4
- Part No.:
- SN75452BDRE4
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SN75452BDRE4.pdf
- Description:
- IC PERIPHERAL DRIVER 5.25V 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,134
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Product details
Overview
SN75452BDRE4 from Texas Instruments is a dual-NAND peripheral driver IC designed for high-current, high-speed switching in TTL-based systems. It delivers 300mA per channel, supports up to 30V output voltage, features open-collector outputs with diode-clamped TTL-compatible inputs, and operates across 0°C to 70°C - ideal for driving lamps, LEDs, and high-voltage logic loads in industrial control interfaces.
For engineers reviewing the SN75452BDRE4 datasheet, SN75452BDRE4 pinout, SN75452BDRE4 application, or SN75452BDRE4 equivalent, this page provides verified functional specifications, validated SOIC-8 package details, confirmed NAND logic behavior, thermal derating data, and real-world design guidance for lamp/LED driver implementations requiring latch-up immunity and fast propagation (26–35 ns).
Technical Context
The SN75452BDRE4 implements dual independent NAND-gated NPN transistor drivers with internally connected gate outputs to transistor bases. Each channel uses diode-clamped TTL inputs and open-collector outputs capable of sinking 300mA continuously at VCC = 5V and TA = 25°C.
It is characterized for commercial temperature operation (0°C to 70°C), exhibits no latch-up at 20V after conducting 300mA, and maintains low-level output voltage ≤0.4V at 300mA load - enabling direct interfacing with microcontrollers and logic devices driving high-voltage peripherals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Dual NAND gate driver - each channel activates output only when both inputs are high (positive logic) |
| Max Output Current | 300 mA per channel - sufficient to drive lamps, relays, and LED arrays without external transistors |
| Output Voltage Range | Up to 30 V off-state - supports direct connection to 24 V industrial loads |
| Propagation Delay | 26–35 ns (tPLH/tPHL) at 5 V - enables high-speed digital interface timing in logic buffer applications |
| Supply Voltage | 4.75–5.25 V - tightly regulated 5 V rail requirement ensures stable TTL compatibility and noise margin |
| Operating Temperature | 0°C to 70°C - qualified for commercial-grade embedded systems and industrial control panels |
| Input Compatibility | TTL-diode-clamped - eliminates need for external clamping diodes and simplifies MCU interface design |
Pinout & Package
SN75452BDRE4 is housed in an 8-pin SOIC (D) package measuring 4.90 mm × 3.90 mm, with standard JEDEC MS-012AC footprint and RoHS-compliant NiPdAu lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A | Channel 1 Input A | First NAND input - must be driven to defined logic level (VIH ≥ 2 V or VIL ≤ 0.8 V); floating state invalid |
| 1B | Channel 1 Input B | Second NAND input - both 1A and 1B must be high to enable Channel 1 output sink |
| 1Y | Channel 1 Output | Open-collector NPN collector - sinks current to GND when active; requires external pull-up to VSUP (≤30 V) |
| GND | Ground Reference | Common return path for logic inputs, supply, and output current return |
| VCC | Positive Supply | 5 V ±2.5% power rail for internal logic and base drive circuitry |
| 2A | Channel 2 Input A | Independent NAND input - electrically isolated from Channel 1; same VIH/VIL thresholds |
| 2B | Channel 2 Input B | Second input for Channel 2 - dual-channel operation allows separate control of two high-side loads |
| 2Y | Channel 2 Output | Second open-collector output - identical electrical specs to 1Y; supports independent load switching |
Key Features
| Feature | Design Value |
|---|---|
| No latch-up at 20 V | Guaranteed immunity to destructive latch-up even after sustained 300 mA conduction - eliminates need for external current limiting in transient overloads |
| Diode-clamped TTL inputs | Integrated input protection diodes eliminate external components and ensure robustness against input overshoot beyond VCC or below GND |
| High-speed switching | Sub-35 ns propagation delays enable use in 20+ MHz clocked logic buffers and synchronous lamp strobing |
| Open-collector outputs | Supports wired-OR configurations, level translation up to 30 V, and direct interface with relay coils or LED strings |
| Standard 5 V supply | Operates from common system rail - avoids dedicated voltage regulators and simplifies power architecture |
Applications
| Lamp Driver | LED Driver |
|---|---|
Use Scenario: Driving incandescent or halogen indicator lamps in industrial HMIs and panel meters where 24 V supply is standard. IC Role / Device Role / Timing Role: Dual-NAND driver acts as logic-controlled current sink - each channel independently switches lamp current up to 300 mA. Use Value: Eliminates discrete transistor stages while maintaining TTL compatibility and latch-up immunity under lamp inrush conditions. | Use Scenario: Controlling multi-segment LED displays or high-brightness status indicators in automotive dashboards and medical equipment. IC Role / Device Role / Timing Role: Provides fast-switching, current-limited sink for common-anode LED configurations with precise on/off timing. Use Value: Enables clean 26–35 ns edge transitions for multiplexed displays and reduces BOM count by integrating logic + driver in one SOIC-8 package. |
| Line Driver | Memory Driver |
Use Scenario: Buffering TTL-level address/data lines to drive long PCB traces or backplane stubs in legacy computing systems. IC Role / Device Role / Timing Role: Acts as high-current line repeater - strengthens signal integrity by sourcing/sinking >200 mA into capacitive loads. Use Value: Maintains signal fidelity over 15 pF loads with <35 ns delay, preventing timing violations in 10–20 MHz bus architectures. | Use Scenario: Enabling write strobes or chip-select signals in SRAM/ROM subsystems requiring higher drive strength than standard logic gates. IC Role / Device Role / Timing Role: Serves as memory enable driver - NAND logic allows active-low CS generation with dual-input control. Use Value: Reduces propagation skew between parallel memory channels and supports simultaneous activation of multiple memory banks via shared inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-NAND peripheral driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN75452BD | Same silicon, SOIC-8 package, 75-unit tube packaging instead of 2500-unit tape-and-reel | Identical electrical performance and pinout; differs only in packaging format and reel quantity | Select SN75452BD for prototyping or low-volume builds where tube delivery is preferred |
| SN75452BDE4 | Same device, identical SOIC-8 package and tape-and-reel format, but with enhanced environmental compliance (green molding compound) | No functional difference; E4 suffix denotes RoHS-compliant, halogen-free construction per TI specification | Choose SN75452BDE4 for designs requiring full IPC-1752A material declaration and green manufacturing compliance |
Compared with SN75452BDRE4, SN75452BD offers identical performance in tube packaging for evaluation, while SN75452BDE4 provides identical tape-and-reel delivery with halogen-free materials - making SN75452BDRE4 the optimal choice for high-volume automated assembly requiring standard RoHS/NiPdAu finish and 2500-unit reels.
Availability
SN75452BDRE4 is available at Aetrix Electronics and suitable for lamp drivers, LED drivers, line drivers, and memory drivers requiring stable component supply, consistent SOIC-8 footprint, and guaranteed commercial-temperature operation.
Supply support for SN75452BDRE4 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions with over 90 years of innovation in industrial, automotive, and communications markets.
The SN7545xB family was engineered to replace legacy SN75450-series drivers with improved latch-up immunity and tighter parametric control - targeting TTL-based peripheral interfacing in cost-sensitive industrial controls and instrumentation.
FAQ
What logic function does the SN75452BDRE4 implement?
The SN75452BDRE4 implements dual independent NAND gate drivers. Each channel activates its open-collector output only when both inputs (e.g., 1A and 1B) are high. This positive-logic NAND behavior is confirmed in the device's function table and schematic - distinct from AND, OR, or NOR variants in the same SN7545xB family. The SN75452BDRE4 does not invert inputs or outputs beyond the inherent NAND logic.
Can SN75452BDRE4 drive a 24 V relay coil directly?
Yes, SN75452BDRE4 can drive a 24 V relay coil directly using its open-collector output. With a maximum off-state output voltage rating of 30 V and continuous sink capability of 300 mA, it supports typical 24 V DC relays drawing ≤200 mA. An external pull-up resistor to 24 V is required at the 1Y or 2Y pin, and the relay coil must connect between that pull-up and the output pin. No additional flyback protection is integrated - an external diode remains necessary.
What is the maximum recommended load current per channel for SN75452BDRE4?
The maximum recommended continuous load current per channel for SN75452BDRE4 is 300 mA, as characterized in the datasheet under Recommended Operating Conditions and Electrical Characteristics. Exceeding this value risks exceeding the continuous power dissipation limit (464 mW at TA = 70°C for SOIC-8), especially without heatsinking. Peak current up to 500 mA is allowed for ≤10 ms pulses at ≤50% duty cycle, provided average power stays within thermal limits.
Does SN75452BDRE4 require external input clamping diodes?
No, SN75452BDRE4 does not require external input clamping diodes. Its inputs are diode-clamped per the datasheet Feature list and Functional Description - internal protection diodes limit input voltage to VCC + 0.5 V and GND –1.5 V. This eliminates external components for standard TTL-level interfacing and improves board-level reliability in noisy industrial environments.
How does SN75452BDRE4 differ from SN75451BDRE4?
SN75452BDRE4 implements dual NAND logic, whereas SN75451BDRE4 implements dual AND logic. Their pinouts, packages, and electrical specs (300 mA drive, 30 V output, 0°C–70°C range) are identical. The functional difference lies solely in logic behavior: SN75452BDRE4 outputs activate only when both inputs are high (NAND), while SN75451BDRE4 outputs activate only when both inputs are high (AND). This makes them non-interchangeable without logic inversion in the system design.
SN75452BDRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Logic Type:
- Peripheral Driver
- Number of Elements:
- 2
- Number of Bits per Element:
- 2
- Input Type:
- -
- Output Type:
- Open Collector
- Current - Output High, Low:
- 100µA, 300mA
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SN75452BDRE4 FAQ
1.How can I place an order for SN75452BDRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN75452BDRE4 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 SN75452BDRE4 reliable?
The price and inventory of SN75452BDRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN75452BDRE4 is usually 5 days.
3.What payment methods are accepted for SN75452BDRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN75452BDRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN75452BDRE4?
SN75452BDRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN75452BDRE4 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 SN75452BDRE4?
For technical support, including SN75452BDRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN75452BDRE4 requirements.
6.How does Aetrix verify that SN75452BDRE4 is sourced from the original manufacturer or authorized distributors?
All SN75452BDRE4 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 SN75452BDRE4 meets industry standards.
7.What is the process for return or replacement of SN75452BDRE4?
All SN75452BDRE4 units undergo pre-shipment inspection (PSI). If there is an issue with SN75452BDRE4, 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 SN75452BDRE4 part is unused and in its original packaging.
Return procedure for SN75452BDRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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