FAN7602
Green Current Mode PWM Controller
Features
Description
Green Current Mode PWM Control
Fixed 65kHz Operation with Frequency Modulation
Internal High-Voltage Start-up Switch
Burst Mode Operation
Line Voltage Feed Forward to Limit Maximum Power
Line Under-Voltage Protection
Latch Protection & Internal Soft-Start (10ms) Function
Overload Protection
Over-Voltage Protection
Low Operation Current: Typical 1mA
8-pin DIP/SOP
Applications
Adapter
LCD Monitor Power
Auxiliary Power Supply
The FAN7602 is a green current mode PWM controller. It
is specially designed for off-line adapter application,
DVDP, VCR, LCD monitor application, and auxiliary
power supplies.
The internal high-voltage start-up switch and the burstmode operation reduce the power loss in standby mode.
Because of the internal start-up switch and the burst
mode, it is possible to supply 0.5W load, limiting the
input power to under 1W when the input line voltage is
265VAC. On no-load condition, the input power is under
0.3W.
The maximum power can be limited constantly, regardless of the line voltage change, using the power limit
function.
The switching frequency is internally fixed at 65kHz and
the frequency modulation technique reduces EMI.
The FAN7602 includes various protections for the system reliability and the internal soft-start prevents the output voltage overshoot at start-up.
Related Application Notes
AN6014 - Green Current Mode PWM Controller
FAN7602
Ordering Information
Part Number
Operating Temp.
Range
FAN7602N
FAN7602M
-25°C to +125°C
FAN7602MX
© 2006 Fairchild Semiconductor Corporation
FAN7602 Rev. 1.0.2
Yes
Package
Packing Method
Marking
Code
8-DIP
Pb-Free
Rail
FAN7602
8-SOP
Rail
FAN7602
Tape & Reel
FAN7602
www.fairchildsemi.com
FAN7602 Green Current Mode PWM Controller
November 2006
