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