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FAN103MY 数据表(PDF) 1 Page - Fairchild Semiconductor

部件名 FAN103MY
功能描述  Primary-Side-Regulation PWM Controller (PWM-PSR)
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

FAN103MY 数据表(HTML) 1 Page - Fairchild Semiconductor

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March 2010
© 2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN103 • Rev. 1.0.3
FAN103
Primary-Side-Regulation PWM Controller (PWM-PSR)
Features
Low Standby Power Under 30mW
High Voltage Startup
Fewest External Component Counts
Constant-Voltage (CV) and Constant-Current (CC)
Control without Secondary-Feedback Circuitry
Green-Mode Function: Linearly-Decreasing PWM
Frequency
Fixed PWM Frequency at 50kHz with Frequency
Hopping to Solve EMI Problem
Cable Compensation in CV Mode
Peak-Current-Mode Control in CV Mode
Cycle-by-Cycle Current Limiting
VDD Over-Voltage Protection with Auto Restart
VDD Under-Voltage Lockout (UVLO)
Gate Output Maximum Voltage Clamped at 15V
Fixed Over-Temperature Protection with
Auto Restart
Available in the 8-Lead SOP Package
Applications
Battery chargers for cellular phones, cordless
phones, PDA, digital cameras, power tools, etc.
Replaces linear transformer and RCC SMPS
Description
This third-generation Primary-Side-Regulation (PSR)
and highly integrated PWM controller provides several
features to enhance the performance of low-power
flyback
converters.
The
proprietary
topology,
TURECURRENT™, of FAN103 enables precise CC
regulation and simplified circuit for battery charger
applications. A low-cost, smaller and lighter charger
results as compared to a conventional design or a linear
transformer.
To
minimize
standby
power
consumption,
the
proprietary green-mode function provides off-time
modulation to linearly decrease PWM frequency under
light-load conditions. This green mode assists the power
supply in meeting the power conservation requirement.
By using the FAN103, a charger can be implemented
with few external components and minimized cost. A
typical output CV/CC characteristic envelope is shown
in Figure 1.
VO
IO
Maximum
Before Cable Compensation
Minimum
After Cable Compensation
Figure 1. Typical Output V-I Characteristic
Ordering Information
Part Number
Operating
Temperature Range
Eco
Status
Package
Packing Method
FAN103MY
-40°C to +105°C
Green
8-Lead, Small Outline Package (SOP-8)
Tape & Reel
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html


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