Inicio Gestión de la energía Interruptores de alimentación y controladores de puertos de carga USB

TPS2051B

ACTIVO

Interruptor de alimentación USB con carga de 0.5 A, 2.7 V a 5.5 V y 70 mΩ, activa-alta

Detalles del producto

Product type Fixed current limit, Power switch 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 Rating Catalog
Product type Fixed current limit, Power switch 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 Rating Catalog
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9 SOIC (D) 8 29.4 mm² 4.9 x 6 SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 70-mΩ High-Side MOSFET
  • 500-mA Continuous Current
  • Thermal and Short-Circuit Protection
  • Accurate Current Limit (0.75 A Minimum, 1.25 A Maximum)
  • Operating Range: 2.7 V to 5.5 V
  • 0.6-ms Typical Rise Time
  • Undervoltage Lockout
  • Deglitched Fault Report ( OC)
  • No OC Glitch During Power Up
  • Maximum Standby Supply Current: 1-µA (Single, Dual) or 2-µA (Triple, Quad)
  • Ambient Temperature Range: –40°C to 85°C
  • UL Recognized, File Number E169910
  • Additional UL Recognition for TPS2042B and TPS2052B for Ganged Configuration
  • 70-mΩ High-Side MOSFET
  • 500-mA Continuous Current
  • Thermal and Short-Circuit Protection
  • Accurate Current Limit (0.75 A Minimum, 1.25 A Maximum)
  • Operating Range: 2.7 V to 5.5 V
  • 0.6-ms Typical Rise Time
  • Undervoltage Lockout
  • Deglitched Fault Report ( OC)
  • No OC Glitch During Power Up
  • Maximum Standby Supply Current: 1-µA (Single, Dual) or 2-µA (Triple, Quad)
  • Ambient Temperature Range: –40°C to 85°C
  • UL Recognized, File Number E169910
  • Additional UL Recognition for TPS2042B and TPS2052B for Ganged Configuration

The TPS20xxB power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporates 70-mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.

When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent ( OCx) logic output low. When continuous heavy overloads and short circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A (typical).

The TPS20xxB power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporates 70-mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.

When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent ( OCx) logic output low. When continuous heavy overloads and short circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A (typical).

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Documentación técnica

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Tipo Título Fecha
* Data sheet TPS20xxB Current-Limited, Power-Distribution Switches datasheet (Rev. N) PDF | HTML 17 jul 2023
Certificate US-36986-UL Certificate of Compliance IEC 62368-1 12 mar 2021
EVM User's guide Single Channel Power-Distribution Switch EVM (Rev. B) 17 dic 2007
EVM User's guide TPS2041B/51B EVM Power-Distribution Switch (Rev. A) 01 jun 2007
User guide HPA228A/HPA240A Power-Distribution Switch 22 mar 2007

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Paquete Pasadores Descargar
HVSSOP (DGN) 8 Ver opciones
SOIC (D) 8 Ver opciones
SOT-23 (DBV) 5 Ver opciones

Pedidos y calidad

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  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
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