TLE82452-3SA数据手册Infineon中文资料规格书

描述 Description

The TLE 82452 is a flexible, monolithic solenoid driver IC designed for the control of linear solenoids in automatic transmission, electronic stability control, and active suspension applications. The two channels can be used as either low-side or high-side drivers in any combination.  The device includes the drive transistor, recirculation transistor, and current sensing resistor; minimizing the number of required external components. This device is capable of regulating the average current flow in a load up to 1500 mA, depending on the dither settings and the load characteristics, with 0.73 mA resolution. A triangular dither waveform generator, when enabled, superimposes a triangular waveform with programmable amplitude and frequency on the programmed current setpoint

特性 Features

·Two independent low side / high side configurable channels
·Integrated half-bridge power stages
·RON(max) = 250 mOhms@ Tj = 150 °C
·Integrated sense resistor with internal TCR compensation
·Load current measurement range = 0 mA to 1500 mA (typical)
·Current setpoint resolution = 0.73 mA
·Current control accuracy (-40C to 125C)
·+/- 5mA for load currents less than 500 mA
·+/- 1% for load currents greater than 500 mA
· Current control accuracy (-40C to 150C)
· +/- 7.5mA for load currents less than 500 mA
· +/- 1.5% for load currents greater than 500 mA
·Excellent immunity to large load supply voltage changes
·Integrated dither generator with programmable amplitude & frequency
·SPI interface for output control, diagnosis, and configuration
·Independent thermal shutdown for each channel
·Open load, switch bypass, and over-current protection and diagnosis for each channel
·Programmable slew rate control for reduced EMI
·Green Product (RoHS compliant)
·AEC Qualified

应用 Application

·Variable force solenoids (e.g. automatic transmission solenoids)
·Constant current controlled solenoids like
·Idle Speed Control
·Exhaust Gas Recirculation
·Valve control
·Suspension Control