Overview
The TPS2556DRBT is a precision adjustable current-limited power-distribution switch produced by Texas Instruments. Designed for USB and other hot-swap applications, this product ensures reliable power management and protection in a compact package. The TPS2556DRBT is ideal for applications requiring controlled power distribution, such as portable devices, industrial equipment, and consumer electronics. Its adjustable current limit and robust protection features make it a competitive choice for engineers seeking efficient and safe power management solutions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 2.5 to 6.5 | V | |
| Current Limit Range | 50 to 1500 | mA | Adjustable |
| On-Resistance (RDS(ON)) | 70 | mΩ | Typical |
| Operating Temperature Range | -40 to 85 | °C | |
| Package | SON-8 | DRB (3x3 mm) | |
| Quiescent Current | 15 | µA | Typical |
| Fault Response | Latch-Off | Configurable | |
| Overcurrent Protection | Yes | Adjustable | |
| Thermal Shutdown | Yes |
Key Features
- Adjustable Current Limit: Provides flexibility for various application requirements, ranging from 50 mA to 1500 mA.
- Low On-Resistance: Minimizes power loss and improves efficiency with a typical RDS(ON) of 70 mΩ.
- Robust Protection: Includes overcurrent protection, thermal shutdown, and configurable fault response for enhanced reliability.
- Compact Package: Available in a small SON-8 (3x3 mm) package, ideal for space-constrained designs.
- Low Quiescent Current: Ensures minimal power consumption during standby or idle modes.
Applications
The TPS2556DRBT is widely used in applications requiring precise power distribution and protection. Key application areas include:
- USB Ports: Provides current limiting and protection for USB 2.0 and USB 3.0 ports in computers, hubs, and peripherals.
- Portable Devices: Ensures safe power management in smartphones, tablets, and other battery-powered devices.
- Industrial Equipment: Protects sensitive components in industrial automation and control systems.
- Consumer Electronics: Used in devices like gaming consoles, smart home devices, and audio equipment for reliable power distribution.
Q & A
1. What is the input voltage range of the TPS2556DRBT?
The input voltage range is 2.5 V to 6.5 V.
2. Can the current limit be adjusted?
Yes, the current limit is adjustable from 50 mA to 1500 mA.
3. What is the typical on-resistance (RDS(ON))?
The typical on-resistance is 70 mΩ.
4. Does the TPS2556DRBT support thermal shutdown?
Yes, it includes thermal shutdown protection.
5. What is the operating temperature range?
The operating temperature range is -40°C to 85°C.
6. What package does the TPS2556DRBT come in?
It is available in a SON-8 (3x3 mm) package.
7. How does the fault response work?
The fault response is configurable and can be set to latch-off or auto-retry mode.
8. What is the quiescent current?
The typical quiescent current is 15 µA.
9. Is the TPS2556DRBT suitable for USB applications?
Yes, it is ideal for USB 2.0 and USB 3.0 ports.
10. Can it be used in industrial applications?
Yes, it is suitable for industrial automation and control systems due to its robust protection features.
