Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| SwitchType | General Purpose |
| NumberofOutputs | 1 |
| Ratio-Input:Output | 1:1 |
| OutputConfiguration | High Side |
| OutputType | N-Channel |
| Interface | On/Off |
| Voltage-Load | 2.5V ~ 6.5V |
| Voltage-Supply(Vcc/Vdd) | Not Required |
| Current-Output(Max) | 500mA |
| RdsOn(Typ) | 22mOhm |
| InputType | Non-Inverting |
| Features | Slew Rate Controlled, Status Flag |
| FaultProtection | Current Limiting (Adjustable), Over Temperature, UVLO |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| SupplierDevicePackage | 8-SON (3x3) |
Tổng quan
Description
The TPS2556DRBR is a power switch IC designed by Texas Instruments, tailored for USB port power control and protection. It is part of the TPS255x series, known for precision current limiting and robust protection features. The device is ideal for applications requiring current limiting for USB ports, power distribution switches, or similar applications where protection against over-current and short-circuit scenarios is necessary.
Key features include:
1. Current Limiting: Adjustable current limit from 500 mA to 5 A for protecting connected devices and the power source.
2. Over-Current and Short-Circuit Protection: Automatically reduces current to prevent damage.
3. Thermal Shutdown: Protects the chip by disabling it when the temperature exceeds safe levels.
4. Fault Reporting: Provides a fault flag to indicate over-current, over-temperature, or other fault conditions.
5. Low ON-Resistance: Minimizes power loss during operation.
6. Reverse Current Blocking: Protects the power source when the switch is off.
The TPS2556DRBR is typically used in consumer electronics, automotive infotainment systems, and other areas where reliable power delivery and protection are critical.
Key features include:
1. Current Limiting: Adjustable current limit from 500 mA to 5 A for protecting connected devices and the power source.
2. Over-Current and Short-Circuit Protection: Automatically reduces current to prevent damage.
3. Thermal Shutdown: Protects the chip by disabling it when the temperature exceeds safe levels.
4. Fault Reporting: Provides a fault flag to indicate over-current, over-temperature, or other fault conditions.
5. Low ON-Resistance: Minimizes power loss during operation.
6. Reverse Current Blocking: Protects the power source when the switch is off.
The TPS2556DRBR is typically used in consumer electronics, automotive infotainment systems, and other areas where reliable power delivery and protection are critical.
Equivalent
The TPS2556DRBR chip, a power distribution switch by Texas Instruments, can be replaced with several equivalent products, including the following:
1. TPS2553 - Similar TI product with slightly different specifications.
2. MIC2005/6 - Microchip Technology's current limiting power switch.
3. AP2553 - Diodes Incorporated's adjustable current-limited power switch.
4. RT9751 - Richtek's current limiting power switch.
Always ensure compatibility with specific requirements before substituting components.
1. TPS2553 - Similar TI product with slightly different specifications.
2. MIC2005/6 - Microchip Technology's current limiting power switch.
3. AP2553 - Diodes Incorporated's adjustable current-limited power switch.
4. RT9751 - Richtek's current limiting power switch.
Always ensure compatibility with specific requirements before substituting components.
Features
The TPS2556DRBR is a power distribution switch designed for USB applications. Key features include:
1. Current Limiting: It provides adjustable current limiting, which can be set between 500 mA and 5 A, allowing flexibility for various load requirements.
2. Overcurrent and Overtemperature Protection: The device includes protection mechanisms to prevent damage during overcurrent conditions and overheating.
3. USB Compliance: The switch is compliant with USB power distribution requirements, ensuring safe and reliable operation in USB applications.
4. Reverse Current Blocking: It has reverse current blocking to prevent current flowing from the device back to the power source.
5. Low Quiescent Current: The device offers low quiescent current, which helps in conserving power.
6. Fast Short-Circuit Response: The switch provides a fast response to short-circuit events, enhancing system protection.
7. Compact Package: The device is available in a small, space-saving package, making it suitable for compact designs.
These features make the TPS2556DRBR ideal for applications requiring efficient power management and robust protection.
1. Current Limiting: It provides adjustable current limiting, which can be set between 500 mA and 5 A, allowing flexibility for various load requirements.
2. Overcurrent and Overtemperature Protection: The device includes protection mechanisms to prevent damage during overcurrent conditions and overheating.
3. USB Compliance: The switch is compliant with USB power distribution requirements, ensuring safe and reliable operation in USB applications.
4. Reverse Current Blocking: It has reverse current blocking to prevent current flowing from the device back to the power source.
5. Low Quiescent Current: The device offers low quiescent current, which helps in conserving power.
6. Fast Short-Circuit Response: The switch provides a fast response to short-circuit events, enhancing system protection.
7. Compact Package: The device is available in a small, space-saving package, making it suitable for compact designs.
These features make the TPS2556DRBR ideal for applications requiring efficient power management and robust protection.
Pinout
The TPS2556DRBR is a power distribution switch from Texas Instruments. It comes in an 8-pin SON (Small Outline No-lead) package. The pin functions are as follows:
1. IN: Input voltage pin. Connects to the power supply.
2. OUT: Output voltage pin. Connects to the load.
3. GND: Ground pin. Reference point for the device.
4. EN: Enable pin. Used to turn the device on or off.
5. ILIM: Current limit set pin. An external resistor connected to this pin sets the current limit.
6. FAULT: Fault indicator pin. An open-drain output that signals an overcurrent or thermal shutdown condition.
7. NC: No Connection pin. Not internally connected.
8. NC: No Connection pin. Not internally connected.
The TPS2556DRBR is designed for applications requiring current limiting and protection, such as USB ports and general power distribution.
1. IN: Input voltage pin. Connects to the power supply.
2. OUT: Output voltage pin. Connects to the load.
3. GND: Ground pin. Reference point for the device.
4. EN: Enable pin. Used to turn the device on or off.
5. ILIM: Current limit set pin. An external resistor connected to this pin sets the current limit.
6. FAULT: Fault indicator pin. An open-drain output that signals an overcurrent or thermal shutdown condition.
7. NC: No Connection pin. Not internally connected.
8. NC: No Connection pin. Not internally connected.
The TPS2556DRBR is designed for applications requiring current limiting and protection, such as USB ports and general power distribution.
Manufacturer
The TPS2556DRBR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of analog and embedded processing chips. These products are essential components used in a variety of electronic systems, including consumer electronics, automotive, industrial, and communications equipment. TI is known for its innovation in semiconductor technology and is one of the largest semiconductor manufacturers worldwide. The company focuses on developing efficient and high-performance components that help manage power, enhance connectivity, and improve overall electronics functionality.
Application
The TPS2556DRBR is a current-limiting power distribution switch used primarily in applications requiring precision current limiting and overcurrent protection. It is commonly used in USB ports and hubs, ensuring safe power delivery by protecting against overcurrent and short-circuit conditions. This makes it ideal for consumer electronics, computers, and peripheral devices. Its small size and efficiency also make it suitable for use in portable and battery-powered devices. Additionally, it finds application in industrial and automotive systems where reliable and robust power management is required. The TPS2556DRBR helps improve system reliability and safety by managing power distribution effectively.
Package
The TPS2556DRBR is a current-limited power distribution switch from Texas Instruments, packaged in a 10-pin VSON (DRB) package. This package type is compact and thermally efficient, suitable for applications requiring high current protection and distribution in constrained spaces.
