描述 Description

The uP9616Q is a high-efficiency synchronous-rectifiedbuck converter with an internal power switch. With internallow RDS(ON) switches, the high-efficiency buck converteris capable of delivering up to 3.3A output current for chargerinterface and a wide input voltage range from 8V to 32V. Itoperates in either CV (Constant Output Voltage) mode orCC (Constant Output Current) mode and provides a currentlimitation function. The uP9616Q has a constant outputvoltage 5.2V/9V/12V for Qualcomm? Quick ChargeTM 3.0/2.0(QC2.0/QC3.0) that is detected from D+ and D- line andautomatically detects whether a connected Powered Device(PD) is Quick Charge (QC2.0/QC3.0) capable beforeenabling output voltage adjustment. If a PD not compliantto Quick Charge (QC2.0/QC3.0) is detected, the uP9616Qdisables output voltage adjustment to ensure safe operationwith legacy 5.2V only USB PDs.

uP9616Q is a USB secondary side fast-charging converter,supporting Qualcomm? Quick ChargeTM 3.0 (QC 3.0) HighVoltage Dedicated Charging Port (HVDCP) Class Aspecification.

uP9616Q allows for selection of the output voltage of anAC/DC USB adapter based on commands from the PortableDevice (PD) being powered. Selecting a higher chargingvoltage will reduce the charging current for a given powerlevel resulting in reduced IR drops and increased systemefficiency. Another advantage of QC3.0 is a decreasedbattery charging time and a reduced PD system cost thanksto the ability to select an optimum charging voltage. Thiseliminates the need for costly DC/DC converters within thePD. The USB-bus voltage can be controlled in discreetsteps from 3.6 V up to 12.1V. The output current is limitednot to exceed maximum allowable power level.

Other features for the buck converter include internal softstart,adjustable external CC (Constant Output Current)limit setting, built-in fixed line-compensation, short circuitprotection, VIN/VOUT over voltage protection, and overtemperature protection. It is available in a space-savingVDFN6x5-8L package.

特性 Features

·Certification: uP9616Q is certified by Qualcomm?and UL. Please refer to the information below for
verification: ·Qualcomm Quick Charge is a product of Qualcomm Technologies, Inc.
·UL Certificate No. 47876554328-2 for uP9616Series
·http://www.qualcomm.com/documents/quickcharge-device-list

·Wide Input Voltage Range : 8V to 32V
·Input Voltage Absolute Maximum Rating: 36V
·Up to 3.3A Output Current
·CV/CC Mode Control (Constant Voltage and Constant Current)
·Supports USB DCP Shorting D+ Line to D- Line Per USB Battery Charging Sepecification BC 1.2
·Supports USB DCP Applying 2.7V on D+ Line and 2.7V on D- Line
·Supports USB DCP Applying 1.2V on D+ Line and D- Line Features
·Compliant with Apple? and Samsung Devices
·Internal QC2.0/QC3.0/PE+1.1/PE+2.0/FCP Protocol
·Wide Output Voltage Range: 3.6V to 12.1V
·Output Voltage Accuracy: +2%
·Fixed 125kHz Frequency Operation
·Up to 95% Conversion Efficiency
·Fixed Cable Compensation Voltage
·Adjustable External CC (Constant Output Current) Limit Setting: Default = 3.3A
·CC (Constant Output Current) Limit Accurarcy:+3%
·Short Circuit Protection
·VIN/VOUT Over Voltage Protection and Over Temperature Protections
·VDFN6x5-8L Package
·RoHS Compliant and Halogen Free

應(yīng)用 Application

·PDA Like Device Car Chargers
·Portable Charging Devices