描述 Description

The device controls the current through inductive loads with less than 1% error. Target currents can be programmed from 0 to 1500mA with a resolution of 15 bit. The TLE92464ED supports dither currents up to 1800mA. The dither generator superimposes a triangular or trapezoidal waveform with programmable amplitude and frequency on the programmed current setpoint.The device includes the drive transistors and the current sensing resistors to minimize the number of external components. TLE92464ED is ISO 26262 compliant and achieves safety level ASIL C.

特性 Features

? Four independent low side channels with integrated MOSFETs (RDSon = 115 mΩ)
? <1% current control accuracy
? Programmable setpoint from 0mA to 1.5A
? Load current including dither 1.8A
? Current in parallel channel mode 2.7A
? Integrated dither generator with programmable amplitude, frequency and waveform
? 15 bit current setpoint resolution
? Integrated sense resistor RSHUNT = 140 mΩ
? Excellent immunity to large load supply voltage changes
? Operation down to 3.5 V at VDD pin
? 32 bit SPI with 8 bit CRC and SPI watchdog
? Sophisticated protection and diagnostic functions for each channel in on and off state - Independent thermal shutdown for each channel - Diagnostic Function (Open Load, Short Circuit Ground, Over Current) - Voltage monitoring - Overtemperature protection
? Two independent current feedback paths
? Integrated system clock with clock watchdog
? Temperature range -40°C to 175 °C
? Small power package PG-DSO-36-72
? Green product (RoHS-compliant)
? Pb-free (RoHS-compliant) package
? AEC-Q100 Grade 0 qualified
? ISO 26262 Safety Element out of Context for safety requirements up to ASIL C

應(yīng)用 Application

? Variable force solenoids (e.g. automatic transmission solenoids)
? Other constant current solenoids - Idle air control - Exhaust gas recirculation - Vapor management valve - Suspension control

簡(jiǎn)介

TLE92464ED屬于開發(fā)板套件編程器的評(píng)估演示板及套件。由制造生產(chǎn)的TLE92464ED評(píng)估和演示板及套件該系列產(chǎn)品提供了一種方便的方法，在經(jīng)過驗(yàn)證的實(shí)施環(huán)境中評(píng)估某些重點(diǎn)器件的性能或特性。評(píng)估方法通常有完善的文檔說明，并且視乎具體情況由評(píng)估軟件提供支持。產(chǎn)品通常由印刷電路板組成，板上已裝有重點(diǎn)器件以及必要或有用的支持元器件，另外也可能包括其他組件，例如電纜或電源。對(duì)于數(shù)量特別多或類別獨(dú)特的器件類別(如 ADC、DAC 和開關(guān)模式電源)，評(píng)估平臺(tái)可組合為一個(gè)單獨(dú)的產(chǎn)品系列。