TLE72422GXT Infineon Technologies, TLE72422GXT Datasheet - Page 4

• Manufacturer Part Number: TLE72422GXT
• Manufacturer: Infineon Technologies

Specifications of TLE72422GXT

• Operating Temperature (max): 150C
• Operating Temperature (min): -40C
• Pin Count: 28
• Mounting: Surface Mount
• Screening Level: Automotive
• Lead Free Status / Rohs Status: Compliant

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1.2
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1.3
The TLE7242 2G IC is a four channel low-side constant current control predriver IC. Each channel can be
configured to function either in on/off mode or in constant current mode by setting the appropriate MODE bit in SPI
message #7.
1.3.1
For On/Off operation, the POSx and NEGx pins must be connected to the circuit in either of the configurations
shown in
a SPI command. The open load in on state fault detection feature is disabled in on/off mode.
Note: An external flyback clamp is required in this configuration otherwise the IC may be damaged.
Data Sheet
– Open load in on state
– Open load in off state
– Short to ground
– Test complete bit - indicates that fault detection test has completed
Control loop monitor capabilities
– The average current measurement over the last completed PWM cycle of each channel can be accessed
– The PWM duty cycle of each channel can be accessed via SPI
– The auto zero values used to null the offsets of the input amplifiers can be accessed via SPI
Required External Components:
– N-Channel Logic level (5V) MOSFET transistor with typical Ron ≤ 100 mΩ (e.g. BSO604NS2)
– Recirculation diode (ultrafast)
– Sense resistor (0.2Ω for 1.2A average output current range)
Green Product (RoHS compliant)
AEC Qualified
Variable Force Solenoids (e.g. automatic transmission solenoids)
Other constant current solenoids
– Idle Air Control
– Exhaust Gas Recirculation
– Vapor Management Valve
– Suspension Control
via SPI.
Figure
Applications
General Description
On / Off Mode Operation
1. If the sense resistor is included, the load current can be monitored by the microcontroller via
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Rev. 1.0, 2008-07-09
TLE7242-2G
Overview