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LP87702-Q1

ACTIVO

Convertidor buck doble y boost de 5 V con funciones de diagnóstico

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LP87702-Q1

ACTIVO
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Detalles del producto

Processor supplier Texas Instruments Processor name mmWave AWR, mmWave IWR Regulated outputs (#) 3 Step-down DC/DC converter 2 Step-up DC/DC converter 1 LDO 0 Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.7 Vout (max) (V) 5.2 Iout (max) (A) 3.5 TI functional safety category Functional Safety Quality-Managed 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) 27 Switching frequency (max) (kHz) 4000 Shutdown current (ISD) (typ) (µA) 1 Switching frequency (typ) (kHz) 2000 Product type Radar sensor
Processor supplier Texas Instruments Processor name mmWave AWR, mmWave IWR Regulated outputs (#) 3 Step-down DC/DC converter 2 Step-up DC/DC converter 1 LDO 0 Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.7 Vout (max) (V) 5.2 Iout (max) (A) 3.5 TI functional safety category Functional Safety Quality-Managed 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) 27 Switching frequency (max) (kHz) 4000 Shutdown current (ISD) (typ) (µA) 1 Switching frequency (typ) (kHz) 2000 Product type Radar sensor
VQFN (RHB) 32 25 mm² 5 x 5
  • AEC-Q100 Qualified for Automotive Applications:
    • Device Temperature Grade 1: –40°C to +125°C, TA
  • Functional Safety Quality-Managed
    • Documentation Available to Aid Functional Safety System Design
    • Two Inputs for External Voltage Monitoring
    • Two Programmable Power-Good Signals
    • Dedicated Reference Voltage for Diagnostics
    • Window Watchdog with Reset Output
    • Output Short-Circuit and Overload Protection
    • Overtemperature Warning and Protection
    • Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)
  • Two High-Efficiency Step-Down DC/DC converters:
    • Maximum Output Current 3.5 A
    • 2-MHz, 3-MHz, or 4-MHz Switching Frequency
    • Auto PWM/PFM and Forced-PWM Operations
    • Output Voltage = 0.7 V to 3.36 V
  • 5-V Boost Converter
    • Maximum Output Current 600 mA
  • External Clock Input to Synchronize Switching
  • Spread-Spectrum Modulation
  • Programmable Start-up and Shutdown Delays and Sequencing with Enable Signal
  • Configurable General Purpose Outputs (GPOs)
  • I2C-Compatible Interface Supporting Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) Modes
  • Interrupt Function with Programmable Masking
  • AEC-Q100 Qualified for Automotive Applications:
    • Device Temperature Grade 1: –40°C to +125°C, TA
  • Functional Safety Quality-Managed
    • Documentation Available to Aid Functional Safety System Design
    • Two Inputs for External Voltage Monitoring
    • Two Programmable Power-Good Signals
    • Dedicated Reference Voltage for Diagnostics
    • Window Watchdog with Reset Output
    • Output Short-Circuit and Overload Protection
    • Overtemperature Warning and Protection
    • Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)
  • Two High-Efficiency Step-Down DC/DC converters:
    • Maximum Output Current 3.5 A
    • 2-MHz, 3-MHz, or 4-MHz Switching Frequency
    • Auto PWM/PFM and Forced-PWM Operations
    • Output Voltage = 0.7 V to 3.36 V
  • 5-V Boost Converter
    • Maximum Output Current 600 mA
  • External Clock Input to Synchronize Switching
  • Spread-Spectrum Modulation
  • Programmable Start-up and Shutdown Delays and Sequencing with Enable Signal
  • Configurable General Purpose Outputs (GPOs)
  • I2C-Compatible Interface Supporting Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) Modes
  • Interrupt Function with Programmable Masking

The LP87702-Q1helps meet the power management requirements of the latest platforms, particularly in automotive radar and camera and industrial radar applications. The device contains two step-down DC/DC converters, and a 5-V boost converter to support safety critical applications. The device integrates two voltage monitoring inputs for external power supplies and a window watchdog.

The automatic PWM/PFM (AUTO mode) operation gives high efficiency over a wide output current range for buck converters. The LP87702-Q1 uses remote voltage sensing to compensate IR drop between the converter output and the point-of-load, thus improving the accuracy of the output voltage.

Programmable start-up and shutdown sequences synchronized to the enable signal are supported, including general purpose digital outputs.

During start-up and voltage change, the device controls the output slew rate for minimum output voltage overshoot and inrush current. This device contains one-time-programmable (OTP) memory. Each orderable part number has specific OTP settings for a given application. Details of the default OTP configuration for each orderable part number can be found in the technical reference manual.

The LP87702-Q1helps meet the power management requirements of the latest platforms, particularly in automotive radar and camera and industrial radar applications. The device contains two step-down DC/DC converters, and a 5-V boost converter to support safety critical applications. The device integrates two voltage monitoring inputs for external power supplies and a window watchdog.

The automatic PWM/PFM (AUTO mode) operation gives high efficiency over a wide output current range for buck converters. The LP87702-Q1 uses remote voltage sensing to compensate IR drop between the converter output and the point-of-load, thus improving the accuracy of the output voltage.

Programmable start-up and shutdown sequences synchronized to the enable signal are supported, including general purpose digital outputs.

During start-up and voltage change, the device controls the output slew rate for minimum output voltage overshoot and inrush current. This device contains one-time-programmable (OTP) memory. Each orderable part number has specific OTP settings for a given application. Details of the default OTP configuration for each orderable part number can be found in the technical reference manual.
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Documentación técnica

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* Data sheet LP87702-Q1 Dual Buck Converter and 5-V Boost With Diagnostic Functions datasheet (Rev. C) PDF | HTML 26 feb 2021
User guide LP877021RHBRQ1 Technical Reference Manual PDF | HTML 21 jun 2023
Product overview Mobileye EyeQ6L – Semi Discrete Power Tree PDF | HTML 05 ago 2022
User guide Power Supply Design for xWR Radar Using LP87702K-Q1 (Rev. A) PDF | HTML 29 ene 2022
Technical article Improving industrial radar RF performance with low-noise, thermal-optimized power PDF | HTML 21 abr 2021
Application brief The Benefits of FlexPower PMIC Devices (Rev. B) PDF | HTML 23 nov 2020
Technical article Powering levels of autonomy: a quick guide to DC/DC solutions for SAE autonomy lev 18 nov 2020
User guide LP87702-Q1 Technical Reference Manual (Rev. D) 09 abr 2020
User guide LP877020-Q1 Technical Reference Manual (Rev. A) 09 abr 2020
User guide LP877020-Q1 Configuration Guide 18 feb 2020
Technical article How to meet European Commission ADAS requirements with TI DC/DC converters PDF | HTML 09 may 2019
Design guide Automated Parking System Reference Design Using 77-GHz mmWave Sensor 24 ene 2019
More literature Automotive mmWave sensors 10 jul 2018
EVM User's guide LP8770Q1EVM Evaluation Module User Guide (Rev. A) 13 jun 2018

Diseño y desarrollo

Soluciones de alimentación

Explore las soluciones que incluyan el LP87702-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.

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Placa de evaluación

LP8770Q1EVM — Módulo de evaluación para los reguladores Boost y doble buck LP8770-Q1 con funciones de diagnóstico

The LP8770Q1EVM is designed to meet the power management requirements of the latest processor and platform needs in automotive camera and radar applications. The device contains two step-down DC-DC converters and two linear regulators and general purpose digital output signal. The device is (...)
Guía del usuario: PDF
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Modelo de simulación

LP8770-Q1 SIMPLIS Model

SNVMC02.ZIP (33 KB) - SIMPLIS Model
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Modelo de simulación

LP87702-Q1 PSpice Average Model

SNVMBI8.ZIP (86 KB) - PSpice Model
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Herramienta de cálculo

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

The PMIC Efficiency Estimator Tool (PEET GUI) is a graphical user interface used to easily evaluate PMIC DC/DC regulator efficiency relative to your design conditions. The PEET GUI can be used to configure each DC/DC regulator separately and provides real-time efficiency and power dissipation data (...)
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Esquema

LP87702x Design Checklist

SNVR494.ZIP (324 KB)
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Diseños de referencia

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This reference design utilizes mmWave Radar and a full automotive power design to provide a sleek, simple solution to capture hand gestures and improve the experience of the driver. The evolution of the automobile has led to the desire for simpler and easier interaction with the ever increasing (...)
Design guide: PDF
Esquema: PDF
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TIDEP-01021 — Diseño de referencia de orientación del haz para radar de esquina

This reference design provides a foundation for blind-spot detection (BSD), cross-traffic alert (CTA), lane-change assist (LCA), and traffic-jam assist (TJA) applications using the AWR1843BOOST evaluation module (EVM). This design allows the estimation (in the azimuthal and elevation plane), (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDEP-01025 — Diseño de referencia de diagnóstico y monitoreo de mmWave

Este diseño de referencia muestra la funcionalidad de monitoreo independiente incorporada en los sensores de radar mmWave que mejora la eficiencia del sistema al minimizar la carga de procesamiento en el servidor. El diseño utiliza una biblioteca de diagnóstico de seguridad (SDL) para ejecutar (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-01570 — Diseño de referencia de módulo de radar de 77 GHz para automoción con salida de datos de objetos

TIDA-01570 is a reference design for a 76- to 81-GHz radar sensor module. The power supplies on board convert the automotive battery input to the required rails for the radar analog front end (AFE), processors and CAN-FD transceiver. After processing, object data is provided over the included N-FD (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-020004 — Diseño de referencia de módulo de radar RFCMOS de 77 GHz para automoción, con salida de datos de obj

This reference design is a solution for a 76 to 81 GHz radar sensor module. The power supplies on board convert the automotive battery input to the required rails for the radar AFE, processors and CAN FD transceiver. All of these functions are included in a small form factor PCB suitable for front (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

PMP22334 — Diseño de referencia de pantalla de automóvil de alta eficiencia y bajo ruido de 5 V/3,3 V/1,8 V/1,1

This reference design is for an automotive display application with a customized form factor. The design demonstrates the excellent thermal performance of LM61460-Q1 with its HotRod™ QFN package as well as the low EMI aided by its spread spectrum feature. It generates four (...)
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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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