IC manufacturers Onsemi

IC manufacturers (95)

Onsemi NCP4371 | Demoboard NCP4371QC30GEVB

HVDCP Controller for Qualcomm Quick Charge™ 3.0

Overview

TopologyOther Topology

Description

NCP4371 is a USB secondary side fast-charging controller, supporting Qualcomm Quick Charge™ 3.0 (QC 3.0) High Voltage Dedicated Charging Port (HVDCP) Class A and Class B specification. NCP4371 allows for selection of the output voltage of an AC-DC USB adapter based on commands from the Portable Device (PD) being powered. Selecting a higher charging voltage will reduce the charging current for a given power level resulting in reduced IR drops and increased system efficiency. Another advantage of QC3.0 is a decreased battery charging time and a reduced PD system cost thanks to the ability to select an optimum charging voltage. This eliminates the need for costly DC-DC converters within the PD. The USB-bus voltage can be controlled in discreet steps from 3.6V up to 20V. The output current is limited not to exceed maximum allowable power level. The NCP4371 resides at the secondary (isolated) side of the adapter. It includes voltage and current feedback regulation eliminating the need for a shunt regulator such as TL431. The NCP4371 provides charging current limits down to VBUS=2.2V protecting the portable device from excessive currents in case of a soft short-circuit condition. The NCP4371 integrates a safe-discharge circuitry to quickly and reliably discharge output capacitors in case the USB cable is unplugged or connected to a 5V only USB port.

Features

Supports Qualcomm Quick Charge™ 3.0 HVDCP Class A/B

  • Increases system efficiency and reduces charging time
  • Output Voltage Can be Configured in Discreet Steps from Class A: 3.6V up to 12V Class B: 3.6V up to 20V

    • Supports a wide range of applications
  • Constant Voltage and Constant Current Regulation

    • Provides current protection and system robustness
  • Soft Short-Circuit Current Limitation Down to VBUS = 2.2V

    • Provides Short Circuit protection and system robustness
  • USB pins ESD rated to 8 kV

    • Increased robustness
  • Removes a Need for the Secondary Side Shunt Regulator such as TL431

    • Reduced BOM
  • Output Capacitor Safe-Discharge Circuitry at Cable Unplug

    • Safety
  • Low Supply Current

    • Increases system efficiency
  • Wide Operating Input Voltage Range: 2.2V to 28V

    • Design flexibility
  • Compatible with USB Battery Charging Specification Revision 1.2 (USB BC1.2)

  • Fast Dynamic Response

  • Built-in Power Limiting Function

  • Pb-free Device

Typical applications

  • Fast Charging AC/DC Adapters

Products

Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
VersionApplicationInterface TypeTypeGenderPinsMountIR
(A)
Working Voltage
(V (AC))
PackagingCVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Pitch
(mm)
Ø D
(mm)
L
(mm)
Samples
7447462010SPEC
8 files WE-TI Radial Leaded Wire Wound Inductor 1 8.5 8 0.015 140 Heat Shrinking Tube THT 6
7447462221SPEC
8 files WE-TI Radial Leaded Wire Wound Inductor 220 0.5 0.5 1.2 4.8 Heat Shrinking Tube THT 6
870025374005SPEC
7 files WCAP-PTG5 Aluminum Polymer Capacitors Radial THT Ammopack330 µF 16 2000 -55 °C up to +105 °C 4500 528 8 3.5 8 8
614104150121SPEC
7 files WR-COM USB 2.0 Type A Horizontal THT Short Type 1.5 USB 2.0 Type A Horizontal - Short Type Receptacle 4 THT 1.5 30 Tape and Reel & Mylar -40 °C up to +85 °C
750315544SPEC
Offline Transformer
Order Code Data­sheet Simu­lation
7447462010SPEC
7447462221SPEC
870025374005SPEC
614104150121SPEC
750315544SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
VersionApplicationInterface TypeTypeGenderPinsMountIR
(A)
Working Voltage
(V (AC))
PackagingCVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Pitch
(mm)
Ø D
(mm)
L
(mm)
Samples