Overview
The TPS2051BDR is a power-distribution switch integrated circuit designed and manufactured by Texas Instruments (TI). This device is tailored for applications requiring robust power distribution with built-in protection features. It incorporates a 70mΩ N-channel MOSFET power switch, making it suitable for handling heavy capacitive loads and short circuits. The TPS2051BDR operates within a voltage range of 2.7V to 5.5V and is controlled by an internal charge pump that minimizes current surges during switching. It features thermal and short-circuit protection, accurate current limiting, and an undervoltage lockout mechanism, ensuring reliable and safe operation in various power distribution systems.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Vin (min) (V) | 2.7 | Vin (max) (V) | 5.5 |
| Continuous current (max) (A) | 0.5 | Current limit (A) | 1 |
| Operating temperature range (°C) | -40 to 125 | Enable | Active High |
| Number of switches | 1 | Current limit accuracy at 1 A | 0.25 |
| Rise Time (typical) | 0.6 ms | Standby Supply Current (max) | 1 µA (Single, Dual) or 2 µA (Triple, Quad) |
| Ambient Temperature Range (°C) | -40 to 85 | Package Type | SOP8 |
Key Features
- 70mΩ High-Side MOSFET
- 500mA Continuous Current
- Thermal and Short-Circuit Protection
- Accurate Current Limit (0.75A Minimum, 1.25A Maximum)
- Operating Range: 2.7V to 5.5V
- 0.6ms Typical Rise Time
- Undervoltage Lockout
- Deglitched Fault Report (OC)
- No OC Glitch During Power Up
- Maximum Standby Supply Current: 1µA (Single, Dual) or 2µA (Triple, Quad)
- Ambient Temperature Range: –40°C to 85°C
- UL Recognized, File Number E169910
- Real-time fault reporting
- Adjustable current limiting
- Thermal shutdown protection
- Fault tolerant operation
- Safe operating area (SOA) protection
- Rapidly adjustable current control
- Soft-start functionality for smooth power delivery
- Compact SOP8 package design
- Low thermal resistance and high frequency performance
- Durable construction for reliable long-term use
- Fast response time and low power consumption
Applications
The TPS2051BDR is designed for use in various applications that require robust power distribution and protection. Key application areas include:
- USB ports: Providing overcurrent protection and thermal shutdown features essential for USB port applications.
- Portable devices: Ensuring safe and efficient power distribution in battery-powered devices.
- Battery systems: Managing power distribution with built-in protection against short circuits and overcurrent conditions.
- Heavy capacitive loads: Handling applications where heavy capacitive loads are likely to be encountered.
Q & A
- What is the operating voltage range of the TPS2051BDR?
The TPS2051BDR operates within a voltage range of 2.7V to 5.5V.
- What is the maximum continuous current of the TPS2051BDR?
The maximum continuous current is 500mA.
- What type of MOSFET is used in the TPS2051BDR?
The TPS2051BDR uses a 70mΩ N-channel MOSFET.
- Does the TPS2051BDR have thermal protection?
Yes, the TPS2051BDR features thermal shutdown protection to prevent damage from overheating.
- What is the package type of the TPS2051BDR?
The TPS2051BDR comes in an SOP8 (Small Outline Package) package.
- Does the TPS2051BDR have undervoltage lockout?
Yes, the TPS2051BDR includes an undervoltage lockout feature.
- What is the typical rise time of the TPS2051BDR?
The typical rise time is 0.6 ms.
- Is the TPS2051BDR UL recognized?
Yes, the TPS2051BDR is UL recognized with File Number E169910.
- What are the key applications of the TPS2051BDR?
The TPS2051BDR is used in USB ports, portable devices, battery systems, and applications with heavy capacitive loads.
- Does the TPS2051BDR have real-time fault reporting?
Yes, the TPS2051BDR features real-time fault reporting.
