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Texas Instruments SN75452BDRG4
- Part No.:
- SN75452BDRG4
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SN75452BDRG4.pdf
- Description:
- IC PERIPHERAL DRIVER 5.25V 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,910
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Product details
Overview
SN75452BDRG4 from Texas Instruments is a dual-NAND peripheral driver IC designed for high-current, high-speed switching in TTL-based systems. It delivers 300mA output current per channel, supports up to 30V output voltage, operates from 0°C to 70°C, and features open-collector outputs with diode-clamped TTL-compatible inputs - used in LED drivers, lamp drivers, and line drivers.
For engineers reviewing the SN75452BDRG4 datasheet, SN75452BDRG4 pinout, SN75452BDRG4 application, or SN75452BDRG4 equivalent, key selection criteria include NAND logic function, SOIC-8 package compatibility, 300mA continuous drive capability, latch-up immunity at 20V, and commercial temperature range suitability for industrial control interfaces.
Technical Context
The SN75452BDRG4 implements dual independent NAND-gated npn transistor drivers, where each output stage is internally connected to the base of an NPN transistor. Its logic inputs are diode-clamped for robustness against overvoltage transients and simplify interface design with standard TTL outputs.
It operates with a nominal 5V supply (4.75–5.25V), exhibits propagation delays of 26–35 ns (tPLH/tPHL) and transition times of 5–12 ns at 25°C, and maintains low-level output voltage ≤0.7 V at 300 mA load - enabling fast, reliable switching of resistive and inductive loads without external base drive circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Dual NAND gate driver - enables active-low output control per channel when both inputs are high |
| Max Output Current | 300 mA per channel - sufficient to directly drive LEDs, relays, lamps, or small solenoids |
| Output Voltage Range | Up to 30 V off-state - supports high-voltage peripherals without level-shifting circuitry |
| Supply Voltage | 4.75–5.25 V - compatible with standard 5V TTL/CMOS logic rails |
| Operating Temperature | 0°C to 70°C - qualified for commercial-grade embedded and industrial control applications |
| Propagation Delay | 26–35 ns at 25°C - ensures timing-critical high-speed logic buffering and peripheral interfacing |
| Input Compatibility | TTL-diode-clamped - accepts standard TTL logic levels and suppresses input overshoot |
Pinout & Package
SN75452BDRG4 is housed in an 8-pin SOIC (D) package measuring 4.90 mm × 3.90 mm, with standard gull-wing leads and RoHS-compliant NiPdAu plating. Thermal resistance RθJA is 122.2°C/W, supporting moderate-power operation with minimal heatsinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A | Channel 1 Input A | First NAND input - must be driven to defined logic level; floating inputs cause undefined output state |
| 1B | Channel 1 Input B | Second NAND input - both 1A and 1B high required to pull 1Y low |
| 1Y | Channel 1 Output | Open-collector NPN output - sinks current to GND when active; requires external pull-up |
| GND | Ground Reference | Common return path for logic inputs, supply, and output loads |
| VCC | Supply Voltage | +5 V power rail - bypassed with 0.1 µF capacitor near pin for noise suppression |
| 2A | Channel 2 Input A | Independent NAND input for second driver channel |
| 2B | Channel 2 Input B | Second input for NAND logic on Channel 2 |
| 2Y | Channel 2 Output | Open-collector output identical in function to 1Y - fully isolated from Channel 1 |
Key Features
| Feature | Design Value |
|---|---|
| No latch-up at 20V | Guaranteed immunity to destructive latch-up even after conducting 300 mA - eliminates need for external current-limiting protection |
| Diode-clamped inputs | Integrated input clamping diodes absorb transient overvoltages - simplifies ESD protection and reduces external component count |
| Open-collector outputs | Enable wired-OR logic, level translation, and flexible load connection - supports mixed-voltage system interfacing |
| High-speed switching | Sub-40 ns propagation delay allows use in timing-critical digital interfaces and pulse-width modulated (PWM) peripheral control |
| TTL-compatible inputs | Direct interface with legacy 5V TTL logic families without level shifters or resistive biasing networks |
Applications
| LED Driver | Lamp Driver |
|---|---|
Use Scenario: Driving multiple indicator LEDs or high-brightness LED strings in industrial HMIs and instrumentation panels. IC Role / Device Role / Timing Role: Dual-NAND driver provides independent, current-sinking control for two LED channels with TTL-level enable logic. Use Value: Eliminates need for discrete transistors and base resistors - reduces BOM count and PCB area while delivering 300 mA per LED string. | Use Scenario: Controlling incandescent or halogen pilot lamps in factory control panels and test equipment. IC Role / Device Role / Timing Role: Acts as a rugged, high-voltage switch that interfaces microcontroller GPIOs to 12–24 V lamp circuits. Use Value: Withstands 30 V off-state voltage and handles inrush currents - extends lamp life and improves system reliability vs. MOSFET-only solutions. |
| Line Driver | Memory Driver |
Use Scenario: Buffering TTL-level address/data signals across backplanes or long PCB traces in legacy computing systems. IC Role / Device Role / Timing Role: High-speed dual buffer isolates source logic from capacitive line loading and provides current gain. Use Value: 26–35 ns propagation delay preserves signal integrity at >10 MHz data rates - avoids timing violations in parallel bus architectures. | Use Scenario: Driving address strobes or chip-select lines in static RAM or EPROM subsystems with heavy capacitive loads. IC Role / Device Role / Timing Role: Provides low-impedance current sink for memory control signals requiring fast edge rates and strong drive strength. Use Value: Ensures clean, monotonic transitions under 15 pF load - prevents memory access errors caused by slow rise/fall times. |
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 die, identical electrical specs, SOIC-8 package - differs only in tape-and-reel packaging and marking (75452B vs. 75452B) | No functional difference; same commercial temp range and pinout | Select SN75452BD for tube delivery or non-G4 suffix requirements; SN75452BDRG4 preferred for automated assembly with Pb-free finish |
| SN75452BDR | Identical specifications and SOIC-8 footprint - differs in lead finish (NIPDAU) and MSL rating (Level-1-260C-UNLIM), same reel quantity (2500) | No performance or thermal distinction; minor packaging compliance variation | Choose SN75452BDR if RoHS exemption for leaded finish is required; otherwise SN75452BDRG4 offers full Pb-free compliance |
Compared with SN75452BD and SN75452BDR, the SN75452BDRG4 provides identical driver functionality and timing but adds guaranteed Pb-free (NiPdAu) termination and full RoHS compliance - making it the preferred choice for new designs targeting modern environmental standards without sacrificing performance or layout compatibility.
Availability
SN75452BDRG4 is available at Aetrix Electronics and suitable for LED drivers, lamp drivers, and line drivers requiring stable component supply, long-term industrial availability, and RoHS-compliant manufacturing.
Supply support for SN75452BDRG4 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 for industrial, automotive, and communications markets.
The SN7545xB family was designed to replace legacy SN75450-series drivers with improved latch-up immunity and consistent high-current drive - targeting TTL-based peripheral interfacing in cost-sensitive, reliability-critical control systems.
FAQ
What logic function does the SN75452BDRG4 implement?
The SN75452BDRG4 implements a dual-NAND peripheral driver: each channel outputs a low signal only when both inputs (1A/1B or 2A/2B) are high. Internally, the NAND output drives the base of an NPN transistor, enabling high-current sinking. This logic matches positive-logic NAND behavior per the device's function table and schematic - confirmed in TI's SLRS021E datasheet Section 8.4 and Figure 8-6.
Can the SN75452BDRG4 drive inductive loads like relays?
Yes, the SN75452BDRG4 can drive relays and other inductive loads up to 300 mA per channel, provided an external flyback diode is placed across the coil. Its open-collector NPN outputs safely sink current during turn-off, and its latch-up immunity at 20V protects against voltage spikes. The datasheet explicitly lists "power drivers" and "lamp drivers" as applications, and Figure 9-1 shows high-voltage peripheral driving - confirming suitability for relay interface with proper snubbing.
What is the maximum supply voltage for the SN75452BDRG4?
SN75452BDRG4 has a recommended operating supply voltage of 4.75 V to 5.25 V. Its absolute maximum VCC rating is 7 V, but operation above 5.25 V violates recommended conditions and risks parametric degradation or reduced reliability. All electrical characteristics - including VOL, propagation delay, and supply current - are specified only within the 4.75–5.25 V range per Section 6.2 of the TI datasheet.
Does the SN75452BDRG4 require external base resistors for its outputs?
No, the SN75452BDRG4 does not require external base resistors. Its internal schematic (Figure 8-10) shows integrated base-drive resistors (1 kΩ and 1.6 kΩ) for each NPN output transistor. These resistors set appropriate base current for 300 mA collector drive at 5 V supply - eliminating the need for external components and ensuring optimal saturation under rated load conditions.
Is the SN75452BDRG4 pin-compatible with the SN75451B series?
Yes, SN75452BDRG4 is pin-compatible with SN75451B, SN75453B, and SN75454B in the same SOIC-8 (D) package - all share identical pin configuration (1A, 1B, 1Y, GND, VCC, 2B, 2A, 2Y) per Figure 5-1 and Table 5-1. However, logic functions differ: SN75451B is AND, SN75452B is NAND, SN75453B is OR, SN75454B is NOR. Swapping requires logic-level verification but no PCB change.
SN75452BDRG4 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
SN75452BDRG4 FAQ
1.How can I place an order for SN75452BDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN75452BDRG4 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 SN75452BDRG4 reliable?
The price and inventory of SN75452BDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN75452BDRG4 is usually 5 days.
3.What payment methods are accepted for SN75452BDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN75452BDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN75452BDRG4?
SN75452BDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN75452BDRG4 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 SN75452BDRG4?
For technical support, including SN75452BDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN75452BDRG4 requirements.
6.How does Aetrix verify that SN75452BDRG4 is sourced from the original manufacturer or authorized distributors?
All SN75452BDRG4 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 SN75452BDRG4 meets industry standards.
7.What is the process for return or replacement of SN75452BDRG4?
All SN75452BDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN75452BDRG4, 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 SN75452BDRG4 part is unused and in its original packaging.
Return procedure for SN75452BDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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