Read Harman Kardon MAS 101-102-111 Service Manual online
©2006 Fairchild Semiconductor Corporation
www.fairchildsemi.com
April 2006
FAN7602 Rev. 1.0.1
F
AN76
02 Green Current
Mode PWM Controller
FAN7602
Green Current Mode PWM Controller
Green Current Mode PWM Controller
Features
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: Typ. 1mA
8-pin DIP
Applications
Adapter
LCD Monitor Power
Auxiliary Power Supply
Related Application Notes
AN6014 - Green Current Mode PWM Controller
FAN7602
FAN7602
Description
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.
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 burst
mode 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 under 1W when the input line voltage is 265Vac.
On no-load condition, the input power is under 0.3W.
mode 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 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, regard-
less of the line voltage change using the power limit
function.
less of the line voltage change using the power limit
function.
The switching frequency is internally fixed to be 65kHz
and the frequency modulation technique reduces EMI.
and the frequency modulation technique reduces EMI.
The FAN7602 includes various protections for the sys-
tem reliability and the internal soft start prevents the out-
put voltage over-shoot at start-up.
tem reliability and the internal soft start prevents the out-
put voltage over-shoot at start-up.
Ordering Information
Part Number
Operating Temp.
Range
Pb-Free
Package Packing
Method
Marking
Code
FAN7602N
-25
°
C to +125
°
C
Yes
8-DIP
Rail
FAN7602
13
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