Product
0
AFE539F1-Q1
  • AFE539F1-Q1
  • AFE539F1-Q1
  • AFE539F1-Q1

AFE539F1-Q1

ACTIVE

Automotive single-channel ten-bit smart AFE with PWM active discharge control

Texas Instruments AFE539F1-Q1 Product Info

1 April 2026 0

Parameters

Resolution (Bits)

10

Interface type

I2C, SPI

Output voltage range (V)

0 to 5.5

INL (max) (±LSB)

1

Settling time (µs)

20

Reference type

Ext, Int

Architecture

String

Rating

Automotive

Features

(x1) PWM, EEPROM, Integrated ADC, Smart DAC

Sample/update rate (Msps)

0.025

Power consumption (typ) (mW)

0.4

Operating temperature range (°C)

-40 to 125

Product type

Smart DAC

Package

WQFN (RTE)-16-9 mm² 3 x 3

Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • Constant power-dissipation control state-machine
    • 10-bit analog-to-digital converter (ADC) input
    • 7-bit duty-cycle pulse-width modulation (PWM) output
    • Standalone operation from nonvolatile memory (NVM)
  • Automatically detects I 2C or SPI
    • 1.62-V V IH with V DD = 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)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • Constant power-dissipation control state-machine
    • 10-bit analog-to-digital converter (ADC) input
    • 7-bit duty-cycle pulse-width modulation (PWM) output
    • Standalone operation from nonvolatile memory (NVM)
  • Automatically detects I 2C or SPI
    • 1.62-V V IH with V DD = 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)

Description

The AFE539F1-Q1 is a 10-bit smart analog front end (AFE) targeted for constant power-dissipation control. The AFE539F1-Q1 can be used everywhere where constant power dissipation is desired on a resistive load independently on applied voltage. The AFE539F1-Q1 has an ADC input and a PWM output. This device has an integrated state machine that is preprogrammed as a constant power-dissipation controller. The AFE539F1-Q1 is an excellent choice for automotive DC-link capacitor discharge circuit and general constant-power-heating applications. The AFE539F1-Q1 works independently from parameters programmed into the NVM, which enable this smart AFE for processor-less applications and design reuse. This device also automatically detects I 2C or SPI, and has an internal reference.

The AFE539F1-Q1 is a 10-bit smart analog front end (AFE) targeted for constant power-dissipation control. The AFE539F1-Q1 can be used everywhere where constant power dissipation is desired on a resistive load independently on applied voltage. The AFE539F1-Q1 has an ADC input and a PWM output. This device has an integrated state machine that is preprogrammed as a constant power-dissipation controller. The AFE539F1-Q1 is an excellent choice for automotive DC-link capacitor discharge circuit and general constant-power-heating applications. The AFE539F1-Q1 works independently from parameters programmed into the NVM, which enable this smart AFE for processor-less applications and design reuse. This device also automatically detects I 2C or SPI, and has an internal reference.

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