描述 Description

The uP9616A/B 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 uP9616A/B 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 Deviceis Quick Charge (QC2.0/QC3.0) capable before enablingoutput voltage adjustment. If a powered device notcompatible with Quick Charge (QC2.0/QC3.0) is detected,the uP9616A/B disables output voltage adjustment to ensuresafe operation with legacy 5.2V only USB powered devices.uP9616A/B is a USB secondary side fast-charging converter,supporting Qualcomm? Quick ChargeTM 3.0 (QC 3.0) HighVoltage Dedicated Charging Port (HVDCP) Class Aspecification.

uP9616A/B allows for selection of the output voltage of anAC/DC USB adapter based on commands from the PortableDevice being powered. Selecting a higher charging voltagewill reduce the charging current for a given power levelresulting in reduced IR drops and increased systemefficiency. Another advantage of QC3.0 is a decreasedbattery charging time and a reduced portable device systemcost due to the ability to select an optimum charging voltage.This eliminates the need for costly DC/DC converters withinthe portable device. The USB-bus voltage can be controlledin discreet steps from 3.6V up to 12.1V. The output currentis limited not 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 space savingVDFN6x5-8L and VDFN5x6-10L packages.

特性 Features

·Certification: uP9616B 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 uP9616B Series
·http://www.qualcomm.com/documents/quickcharge-device-list

·Wide Input Voltage Range : 8V to 32V
·Input Voltage Absolute Maximum Rating: 40V
·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 Protocol and USB Type C
·Wide Output Voltage Range: 3.6V to 12.1V
·Output Voltage Accuracy: +1.5%
·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 and VDFN5x6-10L Packages
·VDFN6x5-8L and VDFN5x6-10L Packages
·AEC-Q100 Grade 1 Availiable in VDFN6x5-8L(Soon Also Available in VDFN5x6-10L)
·RoHS Compliant and Halogen Free

應(yīng)用 Application

·PDA Like Device Car Chargers
·Portable Charging Devices