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AFE43902RTERQ1中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

AFE43902RTERQ1
廠商型號

AFE43902RTERQ1

功能描述

AFEx3902-Q1 Smart Analog Front End (AFE) for Multislope Thermal Foldback and LUT-Based Control With I2C and SPI

絲印標(biāo)識

A4902Q

封裝外殼

WQFN

文件大小

2.58918 Mbytes

頁面數(shù)量

65

生產(chǎn)廠商 Texas Instruments
企業(yè)簡稱

TI1德州儀器

中文名稱

德州儀器官網(wǎng)

原廠標(biāo)識
數(shù)據(jù)手冊

下載地址一下載地址二到原廠下載

更新時間

2025-1-15 17:16:00

AFE43902RTERQ1規(guī)格書詳情

1 Features

? AEC-Q100 qualified for automotive applications:

– Temperature grade 1: –40°C to +125°C, TA

? Multislope thermal foldback

– 10-bit analog-to-digital converter (ADC) input

– Digital-to-analog converter (DAC) output

? 10-bit (AFE53902-Q1)

? 8-bit (AFE43902-Q1)

– Pulse Width Modulation (PWM) output with

7?bit duty cycle

– Standalone operation from nonvolatile memory

(NVM)

– Look-up table (LUT) based parameter

configuration

– Piecewise-linearizer for thermistor

? Automatically detects I2C or SPI

– 1.62-V VIH with VDD = 5.5 V

? VREF/MODE pin selects between programming

and standalone modes

? User-programmable NVM

? Internal, external, or VDD reference

? Wide operating range

– Power supply: 1.8 V to 5.5 V

? Tiny package: 16-pin WQFN (3 mm × 3 mm)

2 Applications

? Automotive rear light

? Automotive headlight

3 Description

The 10-bit AFE53902-Q1 and 8-bit AFE43902-Q1

devices (AFEx3902-Q1) are dual-channel, smart

analog front ends (AFE) targeted for multislope

thermal foldback of LED lighting. The output of

LED lights reduce with an increase in temperature.

Multislope thermal foldback helps maintain a steady

light output from LEDs, irrespective of temperature

change, while limiting the LED temperature to

programmed thresholds.

The AFEx3902-Q1 have an ADC for temperature

input and a DAC or PWM generator as an output.

These devices have an integrated state machine that

is preprogrammed as a multislope thermal foldback

controller. The AFEx3902-Q1 are an excellent

choice for thermal foldback of automotive rear

lights and headlights, as well as horticulture lights.

The AFEx3902-Q1 work independently from the

parameters programed into the NVM, and thus enable

these smart AFEs for processor-less applications and

design reuse. These devices also automatically detect

I2C or SPI, and have an internal reference.

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