AFE43902RTERQ1
ActiveAUTOMOTIVE TWO-CHANNEL 8-BIT SMART DAC WITH MULTISLOPE THERMAL FOLDBACK CONTROL WITH BUILT-IN ADC
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AFE43902RTERQ1
ActiveAUTOMOTIVE TWO-CHANNEL 8-BIT SMART DAC WITH MULTISLOPE THERMAL FOLDBACK CONTROL WITH BUILT-IN ADC
Technical Specifications
Parameters and characteristics for this part
| Specification | AFE43902RTERQ1 |
|---|---|
| Mounting Type | Surface Mount |
| Number of Bits | 8 |
| Number of Channels [custom] | 2 |
| Package / Case | 16-WFQFN Exposed Pad |
| Supplier Device Package | 16-WQFN (3x3) |
| Voltage - Supply, Analog [Max] | 5.5 V |
| Voltage - Supply, Analog [Min] | 1.8 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 3000 | $ 1.64 | |
| 6000 | $ 1.59 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.30 | |
| 100 | $ 1.07 | |||
| 250 | $ 0.77 | |||
| 1000 | $ 0.58 | |||
Description
General part information
AFE43902-Q1 Series
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 I 2C or SPI, and have an internal reference.
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.
Documents
Technical documentation and resources