MPQ4491-AEC1中文资料Smart, Single USB Charging Port Power Converter with Selectable Frequency for Automotive, AEC-Q100 Qualified数据手册MPS规格书

描述 Description

The MPQ4491 integrates a monolithic, step-down, switch-mode converter and a single USB current-limit switch with charging port identification circuits. The MPQ4491 achieves 2.5A of continuous output current with excellent load and line regulation over a wide input supply range.
The output of the USB switch is current-limited. The MPQ4491 has a USB-dedicated charging port (DCP), which supports battery charging specification 1.2 (BC1.2), divider mode, and 1.2V/1.2V mode without the need for outside user interaction. The output voltage has a programmable line drop compensation.
Full protection features include hiccup current limiting, output over-voltage protection (OVP), and thermal shutdown.
The MPQ4491 requires a minimal number of readily available, standard, external components and is available in a QFN-25 (4mmx4mm) package.

特性 Features

●14V Typical Operating Input Voltage
●36V Max Operating Input Voltage
●Fixed 5V Output Voltage with Line Drop Compensation
●Accurate USB Output Current Limit
●40mΩ/32mΩ Low RDS(ON) Internal Buck Power MOSFETs
●24mΩ Low RDS(ON) Internal USB Power MOSFETs
●350kHz / 250kHz / 150kHz Frequency Selectable
●ProgrammableLine Drop Compensation
●Output Over-Voltage Protection (OVP)
●Hiccup Current Limit
●Supports DCP Schemes for BC1.2, Divider Mode, and 1.2V/1.2V Mode
●±8kV HBM ESD Rating for USB, DP, and DM
●Available in a QFN-25 (4mmx4mm) Package
●Available in AEC-Q100 Grade 1