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车规 ET9902
General Description
The ET9902 is a high voltage, high current, bidirectional switch. It provides input over-voltage and surge protection as well as reverse-blocking of output voltage. The logic control of the device is designed to interact with both the system controller and the wireless charging receiver which allows creating a dual input charger application with a single switch.
The device is packaged in advanced WLCSP20, which is ideal for small form factor portable equipment .
Features
Operating range from 3.6V to 20V
Absolute maximum voltage of VIN up to 28V
Pin-selectable over-voltage protection(13V/17V)
Input voltage sense output with selectable clamp(16V/20V)
Low RDS(on) is 23mΩ typical at VIN=5V/1A
5A DC Nominal and 7A maximum current capability
Autonomous mode and slave mode operation
50ms Input supply detect deglitcher in autonomous mode
50ms Break-before-make timing with discharge
Bi-directional status indicator and OTG enable pin
Device enable input (active low)
Wireless enable output (active low)
Surge immunity to ±100V
Compliance to IEC61000−4−2 (Level 4): bypassed with a 1.0μF or larger capacitor
-- 15kV Pass (Air) , 8kV Pass (Contact), ESD Ratings: HBM >2.5kV
Applications
Smartphones, Tablet PC
HDD, Storage, and Solid State Memory Devices
Portable Media Devices, Laptop & MID
SLR Digital Cameras
GPS and Navigation Equipment
Industrial Handheld and Enterprise Equipment
Pin Configuration
Block Diagram
Application Circuits
