FAN3989 − USB/Charger Detection Device

The FAN3989 is a USB connection monitoring device used to determine if a standard USB device is connected or a battery-changing device is connected. The FAN3989 sets the FLAG1 pin to logic HIGH or LOW as an indicator to the system controller that a standard USB device or a charger is connected to the USB port. The FAN3989 also monitors the V_BUS for over- or under-voltage conditions. The FLAG2 pin is set LOW if V_BUS is less than 3.3V or greater than 6.0V. The internal load switch control pin is set HIGH if V_BUS is less than 3.3V or greater than 6.0V, turning off the PMOS switch.The FAN3989 is available in a very small 8-lead MLP package suitable for small board space applications, like mobile phones.

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Product Status/Pricing/Packaging

Index	Product	Product & Eco Status	*Pricing	Packaging & Packing Info	**Package Marking Convention	Qualification Support	Compliance Certificates
0	FAN3989MLP8X	Full Production Green as of Dec 2007	$0.62	MLP 3x3 8L (Power 33) Details MLP 3x3 8L (Power 33) Drawing TAPE REEL	Line 1:$Y (Fairchild logo) &Z (Plant Code) &2 (2-Digit Date Code) &K Line 2:3989	ESD (CDM) : 1000 V ESD (HBM) : 4000 V Moisture Sensitivity Level (MSL) : 1 Show more... Max Reflow Temp : 260	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG

Fairchild 1,000 piece Budgetary Pricing. *
If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
Top mark packaging information for product FAN3989 is available. **

Features

Charger/USB Detection Device with Load Switch
Charger/USB Device Detection Flag
Over/Under-Voltage Detection Flag
Load Switch Output, Up to 1.5A Charge Current
V_BUS Supply: 2.7V to 20V
C_ON of 1.5pF
Package: 8-Lead MLP

Applications

Mobile Handsets

External AC-DC Merchant Power Supply - Wireless Communications

Additional Resources

Design Tools Knowledgebase – Ask a Question Find a local sales office Product change notices (PCN) How to Buy Products or Order Samples

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