TLE4678-2EL数据手册Infineon中文资料规格书

描述 Description

The integrated reset and watchdog function, as well as several protection circuits, combined with a wide operating temperature range offered by the TLE4678-2EL make it suitable for supplying microprocessor systems in automotive environments.The watchdog circuitry will be disabled in case the output current drops below a programmable threshold, enabling a microcontroller to switch in stand-by mode. Modifying the reset threshold is possible by an optional resistor divider. The TLE4678-2EL is available in PG-SSOP-14 exposed pad package. Alternatively, the TLE4278-2 is also available in PG-TSON-10 exposed pad package as TLE4678-2LD, featuring thermally enhanced package performance.

特性 Features

• Output Voltage 5 V ± 2%
• Current Capability 200 mA
• Ultra Low Current Consumption
• Very Low Dropout Voltage
• Watchdog Circuit for Monitoring a Microprocessor with Programmable Load-dependent Activating Threshold
• Reset Circuit Sensing the Output Voltage with Programmable Switching Threshold and Delay Time
• Reset Output Active Low Down to V Q = 1 V
• Separated Reset and Watchdog Output
• Excellent Line Transient Robustness
• Maximum Input Voltage -14 V ≤ V I ≤ +45 V
• Reverse Polarity Protection
• Short Circuit Protected
• Overtemperature Shutdown
• Automotive Temperature Range -40 °C ≤ T j ≤ 150 °C
• Green Product (RoHS Compliant)
• AEC Qualified
• PG-SSOP-14 exposed pad package

优势:
• Robust protection features
• Wide input operation and temperature range

应用 Application

• Automotive general ECU's
• Supply with Watchdog requirements
• BCM , Dashboard supply
• Supply with safety requirements