A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the analog and digital grounds separate and connect them at a single point. Use a decoupling capacitor (e.g., 100nF) close to the VCC pin.
The thermal shutdown feature is activated when the junction temperature exceeds 170°C. To handle this, ensure good heat dissipation, use a heat sink if necessary, and monitor the device temperature using the THERMAL_SHUTDOWN pin.
Use a low-pass filter (e.g., RC filter) with a cutoff frequency below 100 kHz to filter out high-frequency noise and ensure stable operation.
To enter low-power mode, set the EN pin low and ensure the device is not switching. This reduces the quiescent current to approximately 10 μA.
The maximum allowed voltage on the VCC pin is 28 V. Exceeding this voltage may damage the device.
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TLE49643KXTSA1 Overview
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