Inicio Administración de potencia Circuitos integrados multicanal (PMIC)

LP875701-Q1

ACTIVO

Convertidor buck multifase de 1 V y 10 A para Mobileye EyeQ4 de grado automotriz

Detalles del producto

Processor supplier Mobileye Processor name EyeQ4 Mid Product type Processor and FPGA Regulated outputs (#) 1 Step-down DC/DC converter 1 Step-up DC/DC converter 0 LDO 0 Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.985 Vout (max) (V) 1.015 Iout (max) (A) 10 Configurability Factory programmable, Software configurable Features Dynamic voltage scaling, Enable, Enable pin, I2C control, Overcurrent protection, Power good, Power sequencing, Power supply and system monitoring, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO fixed Rating Automotive Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.0067 Switching frequency (max) (kHz) 3300 Shutdown current (ISD) (typ) (µA) 1.4 Switching frequency (typ) (kHz) 3000
Processor supplier Mobileye Processor name EyeQ4 Mid Product type Processor and FPGA Regulated outputs (#) 1 Step-down DC/DC converter 1 Step-up DC/DC converter 0 LDO 0 Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.985 Vout (max) (V) 1.015 Iout (max) (A) 10 Configurability Factory programmable, Software configurable Features Dynamic voltage scaling, Enable, Enable pin, I2C control, Overcurrent protection, Power good, Power sequencing, Power supply and system monitoring, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO fixed Rating Automotive Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.0067 Switching frequency (max) (kHz) 3300 Shutdown current (ISD) (typ) (µA) 1.4 Switching frequency (typ) (kHz) 3000
VQFN-HR (RNF) 26 18 mm² (4.5 mm × 4 mm)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Input Voltage: 2.8 V to 5.5 V
  • Output Voltage: 1.0 V
  • Four High-Efficiency Step-Down DC/DC Converter Cores:
    • Maximum Output Current: 10 A (2.5 A per Phase)
  • Switching Frequency: 3 MHz
  • Spread-Spectrum Mode and Phase Interleaving
  • Configurable General Purpose I/O (GPIOs)
  • I2C-Compatible Interface That Supports Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) Modes
  • Interrupt Function With Programmable Masking
  • Programmable Power-Good Signal (PGOOD)
  • Output Short-Circuit and Overload Protection
  • Overtemperature Warning and Protection
  • Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Input Voltage: 2.8 V to 5.5 V
  • Output Voltage: 1.0 V
  • Four High-Efficiency Step-Down DC/DC Converter Cores:
    • Maximum Output Current: 10 A (2.5 A per Phase)
  • Switching Frequency: 3 MHz
  • Spread-Spectrum Mode and Phase Interleaving
  • Configurable General Purpose I/O (GPIOs)
  • I2C-Compatible Interface That Supports Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) Modes
  • Interrupt Function With Programmable Masking
  • Programmable Power-Good Signal (PGOOD)
  • Output Short-Circuit and Overload Protection
  • Overtemperature Warning and Protection
  • Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)

The LP875701-Q1 device is designed to meet the power-management requirements of the latest processors and platforms in various automotive power applications. The device contains four step-down DC/DC converter cores, which are configured as a 4-phase output in forced-PWM mode. The device is controlled by an I2C-compatible serial interface and by enable signals.

The LP875701-Q1 supports remote differential-voltage sensing for multiphase outputs to compensate IR drop between the regulator output and the point-of-load (POL) which improves the accuracy of the output voltage. The switching clock can be forced to PWM mode and also synchronized to an external clock to minimize the disturbances.

The LP875701-Q1 device supports load-current measurement without the addition of external current-sense resistors. The LP875701-Q1 device also supports programmable start-up and shutdown delays and sequences synchronized to enable signals. The sequences can also include GPIO signals to control external regulators, load switches, and processor reset. During start-up , the device controls the output slew rate to minimize output-voltage overshoot and in-rush current.

The LP875701-Q1 device is designed to meet the power-management requirements of the latest processors and platforms in various automotive power applications. The device contains four step-down DC/DC converter cores, which are configured as a 4-phase output in forced-PWM mode. The device is controlled by an I2C-compatible serial interface and by enable signals.

The LP875701-Q1 supports remote differential-voltage sensing for multiphase outputs to compensate IR drop between the regulator output and the point-of-load (POL) which improves the accuracy of the output voltage. The switching clock can be forced to PWM mode and also synchronized to an external clock to minimize the disturbances.

The LP875701-Q1 device supports load-current measurement without the addition of external current-sense resistors. The LP875701-Q1 device also supports programmable start-up and shutdown delays and sequences synchronized to enable signals. The sequences can also include GPIO signals to control external regulators, load switches, and processor reset. During start-up , the device controls the output slew rate to minimize output-voltage overshoot and in-rush current.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LP875701-Q1 Four-Phase 3-MHz 1-V 10-A DC/DC Buck Converter With Integrated Switches datasheet (Rev. A) PDF | HTML 2/08/2021
* Guía del usuario LP875701A-Q1 Technical Reference Manual 4/10/2018
Application brief The Benefits of FlexPower PMIC Devices (Rev. B) PDF | HTML 23/11/2020
Nota sobre la aplicación How to Design Flexible Processor Power Systems Using PMICs (Rev. B) 27/01/2020
Nota sobre la aplicación Power Supply Design for Mobileye EyeQ4 Using LP8757x-Q1 11/10/2018

Diseño y desarrollo

Soluciones de alimentación

Explore las soluciones que incluyan el LP875701-Q1. TI ofrece soluciones de alimentación para sistemas en chip (SoC), procesadores, microcontroladores, sensores y matrices de compuertas programables de campo (FPGA), sean o no de TI.

Placa de evaluación

LP875701Q1EVM — Módulo de evaluación LP875701-Q1 de convertidor buck monofásico de salida simple

El LP875701Q1EVM presenta el circuito integrado LP875701-Q1 de Texas Instruments.

El LP875701-Q1 es un convertidor reductor multifase de alto rendimiento diseñado para cumplir con los requisitos de administración de potencia de los últimos procesadores para aplicaciones automotrices. El dispositivo (...)

Guía del usuario: PDF
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GUI para el módulo de evaluación (EVM)

SNVC232 — LP8757EVM GUI

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Modelo de simulación

LP875701 SIMPLIS Transient

SNVMBP0.ZIP (105 KB) - Modelo SIMPLIS
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Modelo de simulación

LP875701-Q1 PSpice Transient Model

SNVMBP1.ZIP (246 KB) - Modelo PSpice
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Herramienta de cálculo

PEET-GUI — Herramienta de estimación de la eficiencia de los PMIC (PEET)

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Diseño de referencia

TIPA-050039 — Diseño de la fuente de alimentación de EyeQ4 con LP875701-Q1

Este diseño de fuente de alimentación detalla las consideraciones de potencia para el carril de núcleo Mobileye EyeQ4 Mid SoC (sistema en chip) que utiliza el IC de gestión de potencia LP875701-Q1. Este diseño de potencia asume una tensión de entrada de 3.3 V o 5 V (+/-5 %). Si la tensión de (...)

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Pedidos y calidad

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Soporte y capacitación

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