Overview
The TPS2812PWR is a dual high-speed MOSFET driver from Texas Instruments, part of the TPS28xx series. This device is designed to deliver high peak currents into highly capacitive loads, making it suitable for high-frequency applications. The TPS2812PWR features dual noninverting drivers and includes an internal regulator that allows operation with supply inputs between 14 V and 40 V. This regulator can power other circuitry, extending the overall circuit operation to 40 V by clamping the driver supply voltage (VCC) to a safe level for both the driver and the MOSFET gate.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range | 4 | - | 14 | V |
| Internal Regulator Input Voltage Range | 14 | - | 40 | V |
| Peak Output Current (VCC = 10 V) | - | - | 2 | A |
| High-Level Output Voltage (IO = -1 mA) | 9.75 | 9.9 | - | V |
| Low-Level Output Voltage (IO = 1 mA) | 0.18 | 0.25 | - | V |
| Rise Time (VCC = 14 V, CL = 1 nF) | 14 | 25 | - | ns |
| Fall Time (VCC = 14 V, CL = 1 nF) | 15 | 25 | - | ns |
| Propagation Delay Time High-to-Low (VCC = 14 V, CL = 1 nF) | 24 | 40 | - | ns |
| Propagation Delay Time Low-to-High (VCC = 14 V, CL = 1 nF) | 26 | 45 | - | ns |
| Ambient Temperature Operating Range | -40 | - | 125 | °C |
| Supply Current (Inputs High or Low) | 0.2 | 5 | - | µA |
Key Features
- Dual noninverting MOSFET drivers with high peak output current of up to 2 A.
- Internal regulator for supply voltage range of 14 V to 40 V, producing an output voltage of 10 V to 13 V.
- Fast switching times with rise and fall times as low as 25 ns and propagation delays as low as 24 ns.
- High input impedance and noise immunity due to Schmidt trigger switching.
- Low shoot-through current, typically less than 6 mA.
- Available in 8-pin PDIP, SOIC, and TSSOP packages.
- Operating temperature range of -40°C to 125°C.
Applications
The TPS2812PWR is suitable for various high-frequency applications, including:
- Power management systems requiring high-speed MOSFET switching.
- Motor control and drive systems.
- High-frequency switching power supplies.
- Audio and video equipment.
- Industrial control systems.
Q & A
- What is the peak output current of the TPS2812PWR?
The TPS2812PWR can deliver a peak output current of up to 2 A. - What is the supply voltage range for the internal regulator?
The internal regulator operates with supply inputs between 14 V and 40 V. - What are the typical rise and fall times of the TPS2812PWR?
The typical rise and fall times are 25 ns each. - What is the propagation delay time for high-to-low and low-to-high transitions?
The propagation delay times are typically 24 ns for high-to-low and 26 ns for low-to-high transitions. - What is the operating temperature range of the TPS2812PWR?
The device operates over an ambient temperature range of -40°C to 125°C. - What are the package options for the TPS2812PWR?
The device is available in 8-pin PDIP, SOIC, and TSSOP packages. - How does the internal regulator contribute to the device's functionality?
The internal regulator allows the device to operate with supply inputs between 14 V and 40 V, producing an output voltage of 10 V to 13 V, which can power other circuitry. - What is the significance of the Schmidt trigger switching in the TPS2812PWR?
Schmidt trigger switching provides high noise immunity and ensures fast transition speeds regardless of the input signal's rise and fall times. - How is shoot-through current managed in the TPS2812PWR?
The design of the TPS2812PWR limits shoot-through current to less than 6 mA, enhancing the device's reliability and efficiency. - What are some typical applications for the TPS2812PWR?
The device is suitable for power management systems, motor control and drive systems, high-frequency switching power supplies, audio and video equipment, and industrial control systems.
