Overview
The SN75452BPSR is a dual peripheral driver produced by Texas Instruments, designed for use in systems that employ TTL (Transistor-Transistor Logic) logic. This device is part of the SN7545xB family, which is functionally interchangeable with and replaces the earlier SN75450 and SN75450A families. The SN75452BPSR is specifically a NAND driver, with the output of the logic gates internally connected to the bases of the npn output transistors. It is characterized for operation from 0°C to 70°C, making it suitable for a wide range of applications requiring high-current switching at very high speeds.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage, VCC | 4.75 | 5 | 5.25 | V |
| Input Voltage, VI | - | - | 5.5 | V |
| Off-state Output Voltage, VO | - | - | 30 | V |
| Continuous Collector or Output Current, IOK | - | - | 400 | mA |
| Peak Collector or Output Current, II (tw ≤ 10 ms, duty cycle ≤ 50%) | - | - | 500 | mA |
| Propagation Delay Time, Low-to-High-Level Output (tPLH) | 26 | 35 | - | ns |
| Propagation Delay Time, High-to-Low-Level Output (tPHL) | 24 | 35 | - | ns |
| Transition Time, Low-to-High-Level Output (tTLH) | 5 | 8 | - | ns |
| Transition Time, High-to-Low-Level Output (tTHL) | 7 | 12 | - | ns |
| Operating Free-Air Temperature Range, TA | 0 | - | 70 | °C |
| Package Type | - | - | SO (8-pin) | - |
Key Features
- High-Speed Operation: The SN75452BPSR operates at high speeds, with propagation delay times as low as 26 ns for low-to-high-level output and 24 ns for high-to-low-level output.
- High-Current Capability: It can handle continuous collector or output currents up to 400 mA and peak currents up to 500 mA.
- High-Voltage Outputs: The device supports off-state output voltages up to 30 V.
- Diode-Clamped Inputs: Simplifies circuit design by preventing latch-up.
- Multiple Package Options: Available in various packages including PDIP, SOIC, and SO, making it versatile for different application needs.
- RoHS Compliance: The SN75452BPSR is RoHS compliant, ensuring environmental sustainability.
Applications
- High-Speed Logic Buffers: Ideal for buffering high-speed logic signals.
- Power Drivers: Suitable for driving high-current loads such as relays, lamps, and LEDs.
- Lamp Drivers: Can be used to drive lamps and other high-current lighting applications.
- Line Drivers: Effective for driving signals over long lines or in noisy environments.
- Memory Drivers: Used in memory systems to drive memory chips.
- MOS Drivers: Suitable for driving MOSFETs in various applications.
Q & A
- What is the operating temperature range of the SN75452BPSR?
The SN75452BPSR operates from 0°C to 70°C.
- What is the maximum continuous collector or output current of the SN75452BPSR?
The maximum continuous collector or output current is 400 mA.
- What is the maximum peak collector or output current of the SN75452BPSR?
The maximum peak collector or output current is 500 mA for a pulse width of ≤ 10 ms and a duty cycle of ≤ 50%.
- What is the propagation delay time for low-to-high-level output of the SN75452BPSR?
The propagation delay time for low-to-high-level output is typically 35 ns.
- What is the transition time for low-to-high-level output of the SN75452BPSR?
The transition time for low-to-high-level output is typically 8 ns.
- Is the SN75452BPSR RoHS compliant?
Yes, the SN75452BPSR is RoHS compliant.
- What are the common applications of the SN75452BPSR?
Common applications include high-speed logic buffers, power drivers, lamp drivers, line drivers, and memory drivers.
- What package types are available for the SN75452BPSR?
The SN75452BPSR is available in SO (8-pin) packages among others.
- How does the SN75452BPSR prevent latch-up?
The device features diode-clamped inputs to prevent latch-up.
- Is the SN75452BPSR functionally interchangeable with other devices?
Yes, it is functionally interchangeable with and replaces the SN75450 and SN75450A families.
