The TPS255x and TPS255x-1 power-distribution switches are intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered and provide up to 1.5 A of continuous load current. These devices offer a programmable current-limit threshold between 75 mA and 1.7 A (typical) through an external resistor. Current-limit accuracy as tight as ±6% can be achieved at the higher current-limit settings. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.
TPS255x devices limit the output current to a safe level by using a constant-current mode when the output load exceeds the current-limit threshold. TPS255x-1 devices provide circuit breaker functionality by latching off the power switch during overcurrent or reverse-voltage situations. An internal reverse-voltage comparator disables the power-switch when the output voltage is driven higher than the input to protect devices on the input side of the switch. The FAULT output asserts low during overcurrent and reverse-voltage conditions.
| Documentación principal | Tipo | Título | Opciones de formato | Descargar la versión más reciente en inglés | Fecha |
|---|---|---|---|---|---|
| * | Hoja de datos | TPS255xx Precision Adjustable Current-Limited Power-Distribution Switches datasheet (Rev. F) | PDF | HTML | 15/08/2014 | |
| Certificado | TPS255x UL 2367 Certificate of Compliance E169910-20090213 | 25/06/2024 | |||
| Certificado | TPS255x UL Certificate of Compliance IEC 62368-1 (Rev. A) | 24/06/2024 | |||
| Guía de selección | Power Management Guide 2018 (Rev. R) | 25/06/2018 | |||
| Guía de diseño | 2-Port USB 3.0 Hub (TIDA-00287) | 1/08/2014 | |||
| EVM User's guide | Power-Distribution Switch with Adjustable Current-Limit Evaluation Module | 8/10/2008 |
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
The TPS2552/3DBVEVM and TPS2552/3DRVEVM are evaluation modules (EVM) for Texas Instruments’family of power-distribution switches with adjustable current-limit. These EVMs operate over a 2.5 V to 6.5 V range. An onboard jumper sets the output current-limit to either 0.5 A or (...)
El TPS2552/3DBVEVM y el TPS2552/3DRVEVM son módulos de evaluación (EVM) para la familia de interruptores de distribución de potencia de Texas Instruments con límite de corriente ajustable. Estos EVM funcionan en un rango de 2.5 V a 6.5 V. Un puente integrado establece el límite de corriente de (...)
This verified reference design is a two-port, USB 3.0 compliant hub. It provides simultaneous SuperSpeed and high-speed/full-speed connections on the upstream port and provides SuperSpeed, high-speed, full-speed, or low-speed connections on the downstream ports.
The hub design provides power (...)
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| SOT-23 (DBV) | 6 | Ultra Librarian |
| WSON (DRV) | 6 | Ultra Librarian |
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