Inicio Gestión de la energía Convertidores de CA/CC y CC/CC (FET integrado)
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Gestión de la energía
Convertidores de CA/CC y CC/CC (FET integrado)
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TPS551892-Q1

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Convertidor buck-boost completamente integrado de 27 V y 8 A para aplicación automotriz

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TPS551892-Q1

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Detalles del producto

Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck-Boost Type Converter Vin (min) (V) 3 Vin (max) (V) 27 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Load Disconnect, Power good, Spread Spectrum, Synchronous Rectification, UVLO adjustable EMI features Frequency Dithering, Spread Spectrum Vout (min) (V) 0.8 Vout (max) (V) 22 Iq (typ) (µA) 760 Duty cycle (max) (%) 100 Switch current limit (typ) (A) 8
Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck-Boost Type Converter Vin (min) (V) 3 Vin (max) (V) 27 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Load Disconnect, Power good, Spread Spectrum, Synchronous Rectification, UVLO adjustable EMI features Frequency Dithering, Spread Spectrum Vout (min) (V) 0.8 Vout (max) (V) 22 Iq (typ) (µA) 760 Duty cycle (max) (%) 100 Switch current limit (typ) (A) 8
VQFN-HR (RYQ) 21 15 mm² 5 x 3
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Wide input and output voltage range
    • Wide input voltage range: 3.0V to 27V (absolute maximum. 42V)
    • Programmable output voltage range: 0.8V to 22V
    • ±1% reference voltage accuracy
    • Adjustable output voltage compensation for voltage droop over the cable
    • ±5% accurate output current monitoring
  • High efficiency over entire load range
    • 96% efficiency at VIN = 12V, VOUT = 20V and IOUT = 3A
    • Programmable PFM and FPWM mode at light load
  • Avoid frequency interference and crosstalk
    • Optional clock synchronization
    • Programmable switching frequency from 200kHz to 2.2MHz
  • EMI mitigation
    • Optional programmable spread spectrum
    • Lead-less package
  • Rich protection features
    • Output overvoltage protection
    • Hiccup mode for output short-circuit protection
    • Thermal shutdown protection
    • 8 A average inductor current limit
  • Small solution size
    • Maximum switching frequency up to 2.2MHz
    • 3.0mm × 5.0mm HotRod™ QFN package
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Wide input and output voltage range
    • Wide input voltage range: 3.0V to 27V (absolute maximum. 42V)
    • Programmable output voltage range: 0.8V to 22V
    • ±1% reference voltage accuracy
    • Adjustable output voltage compensation for voltage droop over the cable
    • ±5% accurate output current monitoring
  • High efficiency over entire load range
    • 96% efficiency at VIN = 12V, VOUT = 20V and IOUT = 3A
    • Programmable PFM and FPWM mode at light load
  • Avoid frequency interference and crosstalk
    • Optional clock synchronization
    • Programmable switching frequency from 200kHz to 2.2MHz
  • EMI mitigation
    • Optional programmable spread spectrum
    • Lead-less package
  • Rich protection features
    • Output overvoltage protection
    • Hiccup mode for output short-circuit protection
    • Thermal shutdown protection
    • 8 A average inductor current limit
  • Small solution size
    • Maximum switching frequency up to 2.2MHz
    • 3.0mm × 5.0mm HotRod™ QFN package

The TPS551892-Q1 is a synchronous buck-boost converter that is optimized for converting battery voltage or adapter voltage into power supply rails. The TPS551892-Q1 integrates four MOSFET switches providing a compact solution for a variety of applications. The TPS551892-Q1 has up to 27V input voltage capability. When working in boost mode, the TPS551892-Q1 can deliver 60W from a 12V input. It is capable of delivering 45W from 9V input voltage.

The TPS551892-Q1 employs an average current-mode control scheme. The switching frequency is programmable from 200kHz to 2.2MHz by an external resistor and can be synchronized to an external clock. The TPS551892-Q1 also provides optional spread spectrum to minimize peak EMI.

The TPS551892-Q1 offers output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit, output short circuit protection. The TPS551892-Q1 also ensures safe operating with optional output current limit and hiccup-mode protection in sustained overload conditions.

The TPS551892-Q1 can use a small inductor and small capacitors with high switching frequency. It is available in a 3.0mm × 5.0mm QFN package.

The TPS551892-Q1 is a synchronous buck-boost converter that is optimized for converting battery voltage or adapter voltage into power supply rails. The TPS551892-Q1 integrates four MOSFET switches providing a compact solution for a variety of applications. The TPS551892-Q1 has up to 27V input voltage capability. When working in boost mode, the TPS551892-Q1 can deliver 60W from a 12V input. It is capable of delivering 45W from 9V input voltage.

The TPS551892-Q1 employs an average current-mode control scheme. The switching frequency is programmable from 200kHz to 2.2MHz by an external resistor and can be synchronized to an external clock. The TPS551892-Q1 also provides optional spread spectrum to minimize peak EMI.

The TPS551892-Q1 offers output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit, output short circuit protection. The TPS551892-Q1 also ensures safe operating with optional output current limit and hiccup-mode protection in sustained overload conditions.

The TPS551892-Q1 can use a small inductor and small capacitors with high switching frequency. It is available in a 3.0mm × 5.0mm QFN package.
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Documentación técnica

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* Data sheet TPS551892-Q1, Automotive, 27V, 8A, Fully Integrated Buck-boost Converter datasheet PDF | HTML 18 jul 2024
Functional safety information TPS551892-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 31 jul 2024

Diseño y desarrollo

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Placa de evaluación

TPS552892EVM — Módulo de evaluación TPS552892

El TPS552892 es un convertidor reductor‑elevador síncrono optimizado para convertir la tensión de la batería o del adaptador en rieles de suministro de energía. El TPS552892 integra cuatro interruptores MOSFET que proporcionan una solución compacta para la aplicación USB Power Delivery (USB PD).

Guía del usuario: PDF | HTML
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