TLE92466EDXUMA1

The TLE92466ED is a flexible, monolithic solenoid driver IC designed for the control of linear solenoids in automatic transmissions, electronic stability control and active suspension applications. The device includes the drive transistors and the current sensing resistors to minimize the number of external components. The device controls the load current with less than 1% error. Target currents from 0 to 1500 mA can be programmed with a resolution of 15 bit. The device supports dither currents up to 1800 mA. The dither generator superimposes a triangular or trapezoidal waveform with programmable amplitude, frequency and shape on the programmed current setpoint. A 32 bit SPI interface is used to control the 6 channels and monitor the status of the diagnostic functions. The SPI communication is secured with an 8 bit CRC and a programmable timeout watchdog. An active low reset input (RESN) is used to disable all channels and reset the internal registers to the default values. An active high enable pin (EN) enables or disables the output channels without disabling the SPI interface. A fault output pin (FAULTN) signal can be used as external interrupt to the microcontroller whenever a fault is detected.

Applications

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

Key features

• Six independent low side channels with integrated MOSFETs (R_DSon = 115 mΩ)
• <1% current control accuracy
• Programmable setpoint from 0 mA to 1.5 A
• Load current including dither 1.8 A
• Current in parallel channel mode 2.7 A
• Integrated dither generator with programmable amplitude, frequency and waveform
• 15 bit current setpoint resolution
• Integrated sense resistor R_SHUNT = 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, Overcurrent)
• Voltage monitoring
• Overtemperature protection
• Two independent current feedback paths with fast measurement option
• Integrated system clock with clock watchdog
• Temperature range -40 ℃ to 175 ℃
• 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