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LP876242-Q1

現行

適用於 AWR 和 IWR MMIC 的車用四 8.8 MHz 降壓轉換器

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產品規格表

LP876242-Q1

現行
產品規格表 立即訂購

產品詳細資料

Regulated outputs (#) 4 Configurability Factory programmable, Software configurable Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 0.9 Vout (max) (V) 1.9 Iout (max) (A) 4 Features GPIO, Overvoltage protection, SPMI, UVLO TI functional safety category Functional Safety-Compliant Step-up DC/DC converter 0 Step-down DC/DC converter 4 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 1 Iq (typ) (mA) 0.033 Rating Automotive Switching frequency (max) (kHz) 9600 Operating temperature range (°C) -40 to 125 Processor supplier Texas Instruments Processor name mmWave AWR, mmWave IWR Shutdown current (ISD) (typ) (µA) 1 Switching frequency (typ) (kHz) 8800 Product type Radar sensor
Regulated outputs (#) 4 Configurability Factory programmable, Software configurable Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 0.9 Vout (max) (V) 1.9 Iout (max) (A) 4 Features GPIO, Overvoltage protection, SPMI, UVLO TI functional safety category Functional Safety-Compliant Step-up DC/DC converter 0 Step-down DC/DC converter 4 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 1 Iq (typ) (mA) 0.033 Rating Automotive Switching frequency (max) (kHz) 9600 Operating temperature range (°C) -40 to 125 Processor supplier Texas Instruments Processor name mmWave AWR, mmWave IWR Shutdown current (ISD) (typ) (µA) 1 Switching frequency (typ) (kHz) 8800 Product type Radar sensor
VQFN-HR (RQK) 32 27.5 mm² 5.5 x 5
  • AEC-Q100 Qualified with the following results:
    • Input voltage: 3.0 V to 5.5 V
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification Level 2
    • Device CDM ESD classification Level C4B
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation available to aid ISO 26262 system design up to ASIL-D
    • Documentation available to aid IEC 61508 system design up to SIL-3
    • Systematic capability up to ASIL-D
    • Hardware integrity up to ASIL-D
    • Windowed voltage and over-current monitors
    • Watchdog with selectable trigger / Q&A mode
    • Level or PWM error signal monitoring (ESM)
    • Thermal monitoring with high temperature warning and thermal shutdown
    • Bit-integrity (CRC) error detection on configuration registers and non-volatile memory
  • 4 high-efficiency step-down DC/DC converters:
    • Output voltage: 0.9 V to 1.9 V
    • Maximum output current: 4/3/3/2 A
    • Programmable output voltage slew-rate: 0.5 mV/µs to 33 mV/µs
    • Switching frequency: 8.8 MHz
  • 10 configurable general purpose I/O (GPIO)
  • SPMI interface for multi-PMIC synchronization
  • Input overvoltage monitor (OVP) and undervoltage lockout (UVLO)

.

.
  • AEC-Q100 Qualified with the following results:
    • Input voltage: 3.0 V to 5.5 V
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification Level 2
    • Device CDM ESD classification Level C4B
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation available to aid ISO 26262 system design up to ASIL-D
    • Documentation available to aid IEC 61508 system design up to SIL-3
    • Systematic capability up to ASIL-D
    • Hardware integrity up to ASIL-D
    • Windowed voltage and over-current monitors
    • Watchdog with selectable trigger / Q&A mode
    • Level or PWM error signal monitoring (ESM)
    • Thermal monitoring with high temperature warning and thermal shutdown
    • Bit-integrity (CRC) error detection on configuration registers and non-volatile memory
  • 4 high-efficiency step-down DC/DC converters:
    • Output voltage: 0.9 V to 1.9 V
    • Maximum output current: 4/3/3/2 A
    • Programmable output voltage slew-rate: 0.5 mV/µs to 33 mV/µs
    • Switching frequency: 8.8 MHz
  • 10 configurable general purpose I/O (GPIO)
  • SPMI interface for multi-PMIC synchronization
  • Input overvoltage monitor (OVP) and undervoltage lockout (UVLO)

.

.

The LP876242-Q1 device is designed to meet the power management requirements of the latest processors and platforms in various safety-relevant automotive and industrial applications. The device has four step-down DC/DC converter cores, generating four 1-phase outputs. The device settings can be changed by I2C-compatible serial interface or by a SPI serial interface.

The switching clock is forced to PWM mode and the phases are interleaved. The switching can be synchronized to an external clock and spread-spectrum mode can be enabled to minimize the disturbances.

The LP876242-Q1 device includes protection and diagnostic mechanisms such as register and interface CRC, short-circuit protection, thermal monitoring, and shutdown. The LP876242-Q1 device can notify the processor of these events through the interrupt handler, allowing the processor to take action in response.

The LP876242-Q1 device is designed to meet the power management requirements of the latest processors and platforms in various safety-relevant automotive and industrial applications. The device has four step-down DC/DC converter cores, generating four 1-phase outputs. The device settings can be changed by I2C-compatible serial interface or by a SPI serial interface.

The switching clock is forced to PWM mode and the phases are interleaved. The switching can be synchronized to an external clock and spread-spectrum mode can be enabled to minimize the disturbances.

The LP876242-Q1 device includes protection and diagnostic mechanisms such as register and interface CRC, short-circuit protection, thermal monitoring, and shutdown. The LP876242-Q1 device can notify the processor of these events through the interrupt handler, allowing the processor to take action in response.
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類型 標題 日期
* Data sheet LP876242-Q1 Four 8.8-MHz Buck Converters for AWR and IWR MMICs datasheet (Rev. A) PDF | HTML 2022年 6月 23日
Certificate LP876242Q1EVM EU RoHS Declaration of Conformity (DoC) (Rev. A) 2022年 5月 20日
User guide LP876242-Q1 Evaluation Module (Rev. A) PDF | HTML 2022年 5月 9日

設計與開發

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開發板

LP876242Q1EVM — 適用於雷達的車用評估模組 4A + 3A + 3A + 2A 功能安全標準降壓轉換器

LP876242Q1EVM 評估板可用於測試、示範、偵錯與配置一或多個用於汽車雷達應用的 LP876242-Q1 電源管理 IC。板載裝置為 LP876242B0RQKRQ1，該裝置具有 1+1+1+1 相配置和用於 4 個不同的輸出電壓軌的 8.8 MHz-切換頻率

使用指南: PDF | HTML
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參考設計

TIDA-020047 — 適用於汽車 4D 成像雷達的雙裝置 mmWave 串接參考設計

此汽車雷達參考設計為串接 76-GHz 至 81-GHz 雷達感測器模組。其中包含 AWR2243 裝置的雙裝置串接陣列和 AM2732R 雷達處理器。在此串接雷達配置中，主要裝置會將 20-GHz 本機振盪器 (LO) 訊號分配至主要和次要裝置，讓這兩個裝置能以單一射頻 (RF) 收發器的形式運作。如此即可支援多達 6 個傳輸 (TX) 和 8 個接收 (RX) 天線元件，因此在多輸入多輸出 (MIMO) 虛擬陣列中總共可提供 48 個虛擬通道。
Design guide: PDF
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