Overview
The TPS2020DR, part of the TPS202x family from Texas Instruments, is a high-side power distribution switch designed to handle heavy capacitive loads and short circuits. This device is an N-channel MOSFET switch with a maximum on-state resistance of 50 mΩ at 5 V input. It features a logic-level enable input compatible with both 5-V and 3-V logic, making it versatile for various applications. The switch includes internal protection mechanisms such as short-circuit and thermal protection, as well as an overcurrent logic output. The TPS2020DR operates within an input voltage range of 2.7 V to 5.5 V and is available in an 8-pin SOIC package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 5.5 | V |
| On-State Resistance (at 5 V, 25°C) | 33 to 36 | mΩ |
| Short-Circuit Current Limit | 0.22 to 0.4 | A |
| Operating Junction Temperature Range | –40 to 125 | °C |
| Ambient Temperature Range | –40 to 85 | °C |
| Rise Time (at 5 V, 1 μF load) | 6.1 | ms |
| Fall Time (at 5 V, 1 μF load) | 3.4 | ms |
| Enable Input Voltage (High-Level) | 2 to 4.5 | V |
| Enable Input Voltage (Low-Level) | 0 to 0.5 | V |
| ESD Protection | 2 kV Human-Body-Model, 200 V Machine-Model | |
| Package Type | 8-Pin SOIC |
Key Features
- High-side N-channel MOSFET switch with low on-state resistance.
- Short-circuit and thermal protection to prevent device damage.
- Overcurrent logic output for monitoring and control.
- Logic-level enable input compatible with 5-V and 3-V logic.
- Internal charge pump for controlling rise and fall times without external components.
- Undervoltage lockout to ensure valid input voltage before enabling the switch.
- ESD protection up to 2 kV Human-Body-Model and 200 V Machine-Model.
Applications
The TPS2020DR is suitable for various applications where reliable power distribution and protection against short circuits and overcurrent conditions are critical. These include:
- Power management in portable electronics.
- Hot-swap applications in data centers and servers.
- Protection of heavy capacitive loads in industrial and automotive systems.
- General-purpose power switching in consumer electronics.
Q & A
- What is the input voltage range of the TPS2020DR?
The input voltage range is from 2.7 V to 5.5 V. - What is the on-state resistance of the TPS2020DR at 5 V input?
The on-state resistance is typically 33 mΩ to 36 mΩ at 25°C. - What protection mechanisms are built into the TPS2020DR?
The device includes short-circuit protection, thermal protection, and overcurrent logic output. - Is the enable input compatible with both 5-V and 3-V logic?
Yes, the enable input is compatible with both 5-V and 3-V logic. - What is the typical rise time of the TPS2020DR?
The typical rise time is 6.1 ms at 5 V input with a 1 μF load. - What is the ESD protection rating of the TPS2020DR?
The device has ESD protection up to 2 kV Human-Body-Model and 200 V Machine-Model. - In what package types is the TPS2020DR available?
The TPS2020DR is available in an 8-pin SOIC package. - What is the operating junction temperature range of the TPS2020DR?
The operating junction temperature range is from –40°C to 125°C. - Does the TPS2020DR have undervoltage lockout?
Yes, the device has undervoltage lockout to ensure valid input voltage before enabling the switch. - What is the short-circuit current limit of the TPS2020DR?
The short-circuit current limit is from 0.22 A to 0.4 A.
