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TPS40077

ACTIVO

Controlador reductor síncrono de 4.5 V a 28 V con alimentación de tensión de avance en encapsulado H

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TPS543B20 ACTIVO Convertidor reductor SWIFT™ síncrono de 4 V a 19 V y 25 A con compensación interna adaptable Stackable (x2) with frequency synchronization, soft start adjustable and an extended operating temperature.

Detalles del producto

Vin (min) (V) 4.5 Vin (max) (V) 28 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Control mode Voltage mode Topology Buck Rating Catalog Vout (min) (V) 0.7 Vout (max) (V) 23 Features Enable, Power good, Pre-Bias Start-Up, Synchronous Rectification Iq (typ) (µA) 1500 Duty cycle (max) (%) 84 Number of phases 1
Vin (min) (V) 4.5 Vin (max) (V) 28 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Control mode Voltage mode Topology Buck Rating Catalog Vout (min) (V) 0.7 Vout (max) (V) 23 Features Enable, Power good, Pre-Bias Start-Up, Synchronous Rectification Iq (typ) (µA) 1500 Duty cycle (max) (%) 84 Number of phases 1
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • Operation Over 4.5-V to 28-V Input Range
  • Programmable, Fixed-Frequency, up to 1-MHz, Voltage-Mode Controller
  • Predictive Gate-Drive Anti-Cross-Conduction Circuitry
  • <1% Internal 700-mV Reference
  • Internal Gate-Drive Outputs for High-Side and Synchronous N-Channel MOSFETs
  • 16-Pin PowerPAD™ Package
  • Thermal Shutdown Protection
  • Pre-Bias Compatible
  • Power-Stage Shutdown Capability
  • Programmable High-Side Sense Short-Circuit Protection
  • Operation Over 4.5-V to 28-V Input Range
  • Programmable, Fixed-Frequency, up to 1-MHz, Voltage-Mode Controller
  • Predictive Gate-Drive Anti-Cross-Conduction Circuitry
  • <1% Internal 700-mV Reference
  • Internal Gate-Drive Outputs for High-Side and Synchronous N-Channel MOSFETs
  • 16-Pin PowerPAD™ Package
  • Thermal Shutdown Protection
  • Pre-Bias Compatible
  • Power-Stage Shutdown Capability
  • Programmable High-Side Sense Short-Circuit Protection

The TPS40077 is a mid-voltage, wide-input (4.5-V to 28-V), synchronous, step-down controller, offering design flexibility for a variety of user-programmable functions, including soft start, undervoltage lockout (UVLO), operating frequency, voltage feed-forward, and high-side, FET-sensed, short-circuit protection.

The TPS40077 drives external N-channel MOSFETs using second-generation, predictive-gate drive to minimize conduction in the body diode of the low-side FET and maximize efficiency. Pre-biased outputs are supported by not allowing the low-side FET to turn on until the voltage commanded by the closed-loop soft start is greater than the pre-bias voltage. Voltage feed-forward provides good response to input transients and provides a constant PWM gain over a wide input-voltage operating range to ease compensation requirements. Programmable short-circuit protection provides fault-current limiting and hiccup recovery to minimize power dissipation with a shorted output. The 16-pin PowerPAD package gives good thermal performance and a compact footprint.

The TPS40077 is a mid-voltage, wide-input (4.5-V to 28-V), synchronous, step-down controller, offering design flexibility for a variety of user-programmable functions, including soft start, undervoltage lockout (UVLO), operating frequency, voltage feed-forward, and high-side, FET-sensed, short-circuit protection.

The TPS40077 drives external N-channel MOSFETs using second-generation, predictive-gate drive to minimize conduction in the body diode of the low-side FET and maximize efficiency. Pre-biased outputs are supported by not allowing the low-side FET to turn on until the voltage commanded by the closed-loop soft start is greater than the pre-bias voltage. Voltage feed-forward provides good response to input transients and provides a constant PWM gain over a wide input-voltage operating range to ease compensation requirements. Programmable short-circuit protection provides fault-current limiting and hiccup recovery to minimize power dissipation with a shorted output. The 16-pin PowerPAD package gives good thermal performance and a compact footprint.

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* Data sheet TPS40077 4.5-V to 28-V Input, Voltage Mode, Synchronous Buck Controller With Voltage Feed Forward datasheet (Rev. E) PDF | HTML 04 jun 2019

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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