uP9618数据手册uPI(UBIQ)中文资料规格书

描述 Description

The uP9618 is a high-efficiency synchronous-rectified buckconverter with an internal power switch. With internal lowRDS(ON) switches, the high-efficiency buck converter iscapable of delivering up to 2.3A output current for chargerinterface and a wide input voltage range from 10.8V to 30V.It operates in either CV (Constant Output Voltage) modeor CC (Constant Output Current) mode and provides acurrent limitation function. The uP9618 has a constantoutput voltage 5.2V/9.2V/12.3V for Quick Charge 2.0 (QC2.0 ) that is detected from D+ and D- line andautomatically detects whether a connected Powered Device(PD) is Quick Charge 2.0 capable before enabling outputvoltage adjustment. If a PD not compliant to Quick Charge2.0 is detected, the uP9618 disables output voltageadjustment to ensure safe operation with legacy 5.2V onlyUSB PDs.

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 packages.

特性 Features

·Wide Input Voltage Range : 10.8V to 32V.
·Input Voltage Absolute Maximum Rating: 36V.
·Up to 2.3A Output Current.
·CV/CC Mode Control (Constant Voltage and Constant Current).
·Automatic Selection of D+/D- Mode for an Attached Device
·Apple Mode: D+/D- Divider Mode 2.7V and 2.7V.
·Short Mode: BC 1.2DCP Mode.
·Samsung Mode: D+/D- Divider Mode 1.2V and 1.2V.

·Internal QC2.0 and FCP.
·Output Constant Voltage: 5.2V/9.2V/12.3V.
·Output Voltage Accuracy: ±2%
·Fixed 125kHz Frequency Operation.
·Up to 95% Conversion Efficiency.
·Internal Soft Start: 10ms.
·Fixed Cable Compensation Voltage.
·Adjustable External CC (Constant Output Current) Limit Setting: Default = 2.3A.
·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.

应用 Application

·PDA Like Device Car Chargers.
·Portable Charging Devices.