UCC28731-Q1

ACTIVO

Controlador de retorno PSR de potencia en espera cero para automoción

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Detalles del producto

Operating temperature range (°C) -40 to 125 Control mode Primary-side regulation Topology Buck, Flyback Rating Automotive Features Automotive qualified, Current limiting, DCM, Green mode, High voltage startup, High-voltage startup, Input line monitor, Leading edge blanking, Light load efficiency, Light-load efficiency, Low power, Overcurrent protection, Overtemperature protection, PSR, Primary-side regulated, Quasi-Resonant, Soft start, Thermal shutdown, Valley switching TI functional safety category Functional Safety-Capable
Operating temperature range (°C) -40 to 125 Control mode Primary-side regulation Topology Buck, Flyback Rating Automotive Features Automotive qualified, Current limiting, DCM, Green mode, High voltage startup, High-voltage startup, Input line monitor, Leading edge blanking, Light load efficiency, Light-load efficiency, Low power, Overcurrent protection, Overtemperature protection, PSR, Primary-side regulated, Quasi-Resonant, Soft start, Thermal shutdown, Valley switching TI functional safety category Functional Safety-Capable
SOIC (D) 7 29.4 mm² 4.9 x 6
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40⁰C to +125⁰C
    • Device HBM classification Level 2: ±2kV
    • Device CDM classification Level C4B: ±750V
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Enables zero-power (< 5mW) standby consumption
  • Primary-side regulation (PSR) eliminates optical coupler
  • ±5% voltage regulation and current regulation across line and load
  • 700V start-up switch with 30V minimum start-up voltage
  • 83kHz maximum switching frequency enables low stand-by power charger designs
  • Resonant-ring valley-switching operation for improved overall efficiency
  • Frequency-dither to ease EMI compliance
  • Clamped gate-drive output for MOSFET
  • Over-voltage, low-line, and over-current protection functions
  • Programmable cable compensation
  • SOIC-7 package
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40⁰C to +125⁰C
    • Device HBM classification Level 2: ±2kV
    • Device CDM classification Level C4B: ±750V
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Enables zero-power (< 5mW) standby consumption
  • Primary-side regulation (PSR) eliminates optical coupler
  • ±5% voltage regulation and current regulation across line and load
  • 700V start-up switch with 30V minimum start-up voltage
  • 83kHz maximum switching frequency enables low stand-by power charger designs
  • Resonant-ring valley-switching operation for improved overall efficiency
  • Frequency-dither to ease EMI compliance
  • Clamped gate-drive output for MOSFET
  • Over-voltage, low-line, and over-current protection functions
  • Programmable cable compensation
  • SOIC-7 package

The UCC28731-Q1 isolated-flyback power supply controller provides constant-voltage (CV) and constant-current (CC) output regulation without the use of an optical coupler minimizing board area plus BOM count for higher lifetime reliability. This device processes information from the primary power switch and an auxiliary flyback winding for precise regulation of output voltage and current, hence the label "PSR".

A minimum switching frequency of 32Hz facilitates achieving less than 5mW of no-load power. An internal 700V start-up switch, dynamically- controlled operating states and a tailored modulation profile support ultra-low stand-by power without sacrificing start-up time. Control algorithms in the UCC28731-Q1 allow operating efficiencies to meet or exceed applicable standards. Discontinuous conduction mode (DCM) operation with valley-switching reduces switching losses. Modulation of the switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.

The UCC28731-Q1 isolated-flyback power supply controller provides constant-voltage (CV) and constant-current (CC) output regulation without the use of an optical coupler minimizing board area plus BOM count for higher lifetime reliability. This device processes information from the primary power switch and an auxiliary flyback winding for precise regulation of output voltage and current, hence the label "PSR".

A minimum switching frequency of 32Hz facilitates achieving less than 5mW of no-load power. An internal 700V start-up switch, dynamically- controlled operating states and a tailored modulation profile support ultra-low stand-by power without sacrificing start-up time. Control algorithms in the UCC28731-Q1 allow operating efficiencies to meet or exceed applicable standards. Discontinuous conduction mode (DCM) operation with valley-switching reduces switching losses. Modulation of the switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.

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Documentación técnica

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* Data sheet UCC28731-Q1 Zero-Power Standby PSR Flyback Controller for Automotive datasheet (Rev. A) PDF | HTML 12 nov 2024

Diseño y desarrollo

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Placa de evaluación

UCC28730EVM-552 — Controlador de retorno de lado primario UCC28730 con activación de lado secundario UCC24650

El módulo de evaluación UCC28730EVM-552 es un convertidor de retorno en modo discontinuo (DCM) fuera de línea de 10 W que proporciona regulación de salida de tensión constante (CV) y corriente constante (CC) sin el uso de un acoplador óptico.  El (...)

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SOIC (D) 7 Ultra Librarian

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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