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iW632-00-SO8

更新时间： 2024-11-15 01:04:39
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6页 526K
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RapidCharge™ Dedicated Charging Port Controller for Qualcomm® Quick Charge™ 2.0 and Divider Mode

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iW632  
RapidCharge™ Dedicated Charging Port Controller for  
Qualcomm® Quick Charge™ 2.0 and Divider Mode  
1 Description  
The iW632 is a RapidCharge™ Dedicated Charging Port (DCP) controller for Qualcomm® Quick ChargeTM 2.0  
(QC2.0) technology, optional Samsung Adaptive Fast Charging (AFC) and divider mode USB interface. It allows  
rapid charging of QC2.0 or divider mode enabled mobile devices (MDs), and it automatically identifies QC2.0, AFC  
and divider mode protocols. The iW632 resides on the USB port of the power adapter and allows the adapter to be  
configured for multi-level output such as 5V, 9V, or 12V depending on the voltage requested by MD. It can be used  
in DC/DC power converter systems to achieve smooth voltage transition and low no-load power consumption. The  
iW632 implements three output pins for output feedback ratio change, output over-voltage, and fault and reset signals.  
In addition, iW632 also implements proprietary D+/D- over-voltage protection (OVP) and proprietary D- impedance  
detection to address soft short issues in the output cables and connectors that can be caused by such things as a  
poor or loose connection between the cable connector and the socket, contamination in the USB connector, or a  
worn-out cable, and provides protection against the damages.  
Dialog’s innovative proprietary technology ensures that power supplies designed with the iW632 can provide multi-  
level output voltage configuration, smooth voltage transition and ultra-low no load power consumption.  
2 Features  
● Proprietary D+/D- OVP and proprietary D-  
impedance detection address soft short issues in  
the output cables and connectors and provides  
protection against damages  
● Supports Qualcomm® QC2.0 High Voltage Dedicated  
Charging Port (HVDCP) Class A with voltage  
configuration of 5V, 9V, and 12V  
● Supports divider mode with D+/D- at 2.7V/2.0V for  
● Programmable active fast discharge from 9V/12V  
to 5V at MD unplug or from a high voltage level to  
a lower level upon request with built-in switch or  
external switch  
2.1A rapid charging  
● Optionally supports Samsung Adaptive Fast Charging  
(AFC) for output voltage and current negotiation  
● Backward compatible with USB Battery Charging  
● Normally OFF state with <120µA cut-off current  
during 5V steady-state operation to achieve ultra-low  
power consumption at no load  
Specification Revision 1.2 (USB BC1.2) DCP  
● Backward compatible with Chinese Telecom Standard  
YD/T 1591-2009 Shorted Mode  
● Wide operating voltage range from 3V to 25V  
● Automatically differentiates MDs and determines rapid  
charging protocols  
3 Applications  
● DC/DC converters/chargers for smart phones, tablets,  
and other mobile devices  
Qualcomm® Quick ChargeTM 2.0 is a product of Qualcomm Technologies, Inc.  
VOUT  
U1  
iW632  
V_Logic_H  
1
DIS  
VCC  
OVP  
V1  
D+  
GND  
D-  
8
7
6
D+  
D-  
2
3
4
Power  
Converter  
OVP  
5
V2  
FB  
GND  
Figure 3.1 : iW632 Typical Application Circuit  
08-February-2017  
Product Summary  
Rev. 1.1  
www.dialog-semiconductor.com  
1 of 6  
© 2017 Dialog Semiconductor  
123456

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