AFE439A2RTER

8-bit 2-channel smart DAC with PWM output, ADC, PI loop and EEPROM for H-Bridge based TEC control

Manufacturer：

Luminary Micro/Texas Instruments

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Manufacturer NO：

AFE439A2RTER

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Product SN：

10437-AFE439A2RTER

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Package/Case：

WQFN (RTE)-16

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Manufacturer Lead Time：

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Datasheet:

AFE439A2RTER Datasheet PDF

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Detailed Descripition：

(x1) PWM, EEPROM, Smart DAC

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Product Application Field：None

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1000

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$990

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Datasheets PDF AFE439A2RTER Datasheet PDF

Product Description

The 8-bit AFE439A2, 10-bit AFE539A4, and 12-bit AFE639D2 ( AFEx39xx) are smart analog front ends (AFE) for thermoelectric cooling (TEC) control using voltage or PWM output. The AFE639D2 supports an I 2C controller interface to interface with external digital temperature sensors. The AFE639D2 and AFE539A4 support voltage output and AFE439A2 supports PWM output. The AFEx39xx support a comparator channel for fault management. These devices also support Hi-Z power-down mode and Hi-Z output on the DAC channel during power off. These devices have an integrated state machine that is preprogrammed as a proportional-integral (PI) controller. The AFEx39xx are an excellent choice for TEC control, temperature control, and dynamic headroom control applications. The AFEx39xx integrate advanced features, internal reference, and NVM that enable this smart AFE for processor-less applications and design reuse.

Integrated proportional-integral (PI) control
- Standalone operation from nonvolatile memory (NVM)
- Programmable proportional and integral gain
- Comparator input for output clamping
- Programmable min, max, and common-mode values for output
- Programmable loop-phase inversion
AFE639D2
- I 2C controller for external digital temperature sensor interface
- 12-bit DAC output: 4-LSB DNL, 1-LSB DNL
AFE539A4
- 10-bit ADC input: 2-LSB INL, 1-LSB DNL
- 10-bit DAC output: 1-LSB INL and DNL
AFE439A2
- 8-bit ADC input: 1-LSB INL and DNL
- 7-bit duty-cycle PWM output
Programmable comparator for fault management
High impedance output on DAC channel when VDD is off
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 power supply as reference
Wide operating range
- Power supply: 1.8 V to 5.5 V
- Temperature range: –40˚C to +125˚C
Tiny package: 16-pin WQFN (3 mm × 3 mm)