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FAN6100Q — Secondary-Side CV/CC Controller Compatible with Qualcomm
®
Quick Charge 2.0
March 2015
FAN6100Q
Secondary-Side Constant Voltage and Constant Current
Controller Compatible with Qualcomm
®
Quick Charge 2.0
Features
Supports Qualcomm Quick Charge 2.0
Specification
Secondary-Side Constant Voltage (CV) and
Constant Current (CC) Regulation
Built-in Charge-Pump Circuit for Low Output
Voltage Operation
Internal, Accurate, Adaptive CV/CC Reference
Voltage
Low-Value Current Sensing Resistor for High
Efficiency
Programmable Cable Voltage Drop
Compensation
Two Operational Transconductance Amplifiers
with Open-Drain Type for Dual-Loop CV/CC
Control
Compatible with Fairchild’s FAN501A
Adaptive Secondary-Side Output Over-Voltage
Protection through Photo-Coupler
Output Under-Voltage Protection
Low Quiescent Current Consumption in Green
Mode < 850 µA
Wide V
IN
Supply Voltage Range
Available in 20-Pin 3 x 4 mm MLP Package
®
Description
The FAN6100Q is a integrated secondary side power
®
adaptor controller that is compatible with Qualcomm
™
Quick Charge 2.0 Class A technology. It is designed
for use in application that requires Constant Voltage
(CV) and Constant Current (CC) regulation.
The controller consists of two operational amplifiers
for voltage and current loop regulation with adjustable
reference voltage. The CC control loop also
incorporates a current sense amplifier with gain of 10.
Outputs of the CV and CC amplifiers are tied together
in open drain configuration.
The FAN6100Q enables power adaptor’s output
voltage adjustment if it detects a protocol capable
powered device. It can be capable of outputting 5.0 V
at the beginning, and then 9 V or 12 V to meet
requirement of High-Voltage Dedicated Charging Port
(HVDCP) power supply. If a non compliant powered
device is detected, the controller disables output
voltage adjustment to ensure safe operation with
smart phone and tablets that support only 5 V.
FAN6100Q also incorporates an internal charge pump
circuit to maintain CC regulation down to power
supply’s output voltage, V
BUS
of 2 V without an
external voltage supply to the IC. Programmable
cable voltage drop compensation allows precise CV
regulation at the end of a USB cable via adjusting one
external resistor.
The device is available in the 20-pin MLP 3 x 4
package.
Applications
Battery Chargers for quick charge application
AC/DC Adapters for Portable Devices that
Require CV/CC Control
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