FEBFAN104WMX_T06U005A Fairchild Semiconductor, FEBFAN104WMX_T06U005A Datasheet - Page 3

• Manufacturer Part Number: FEBFAN104WMX_T06U005A
• Description: Power Management IC Development Tools Smart Phone Battery Charger PSR SMPS
• Manufacturer: Fairchild Semiconductor
• Type: Battery Managementr

Specifications of FEBFAN104WMX_T06U005A

• Product: Evaluation Boards
• Tool Is For Evaluation Of: FAN104WMX
• Input Voltage: 90 VAC to 264 VAC
• Output Voltage: 5 V
• Dimensions: 32.4 mm x 26 mm
• Output Current: 1.2 A

1. Introduction
© 2012 Fairchild Semiconductor Corporation
1.1.
1.2.
This user guide supports the evaluation kit for the FAN104WMX. It should be used in
conjunction with the FAN104WMX datasheet as well as Fairchild’s application notes and
technical support team. Please visit Fairchild’s website at
The FAN104WMX has several functions to achieve standby power consumption lower
than 30 mW at 230 V
light-load conditions and a built-in HV startup circuit to reduce startup resistor power
loss both improve performance. By using the FAN104WMX, a smart phone charger can
be implemented with few external components and minimized cost.
This document is an engineering report describing a 5 W power supply using the
FAN104WMX. This power supply targets the smart phone battery charger market with a
<30 mW solution and high efficiency.
Description
This highly integrated PWM controller, FAN104WMX, provides several features to
enhance the performance of low-power flyback converters. The proprietary topology
enables simplified circuit design for battery-charger applications. The result is a lower-cost,
smaller and lighter charger compared to a conventional design or a linear transformer. To
minimize standby power consumption, a proprietary Green-Mode function provides off-
time modulation to linearly decrease PWM frequency under light-load conditions. Green
Mode assists the power supply in meeting power conservation requirements.
Features
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Achieves < 30 mW; Energy Star’s 5-Star Level
Proprietary 500 V High-Voltage JFET Startup Reduces Startup Resistor Loss
Low Operating Current in the Burst Mode: 600 µA
Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Side
Feedback Circuitry
Green Mode: PWM Frequency Linearly-Decreasing
PWM Frequency at 85 kHz with Frequency Hopping to Solve EMI Problem
Boundary-Conduction-Mode (BCM) Operation at Lower AC Input Voltage
Cable Compensation in CV Mode
V
Built-in Protections:
Output Short-Circuit Protection
Output Over-Voltage-Protection (V
V
CS Pin Single-Fault Protection
VS Pin Single-Fault Protection
Over-Temperature-Protection (OTP) with Latch Mode
DD
DD
Under-Voltage Lockout (UVLO) Available
Over-Voltage-Protection (V
AC
. Proprietary Burst Mode with lower operation current under
3
DD
S
OVP)
OVP) with Latch Mode
www.fairchildsemi.com.
FEB-FAN104WMX_T06U005A • Rev. 1.0.0