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The quasi resonant control IC for AC-DC converter
Monolithic IC MM3661 Series
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[Outline]
This IC is a quasi resonant control IC for AC-DC converter. This control helps to keep the EMI low by soft switching. This IC has a built-in start-up circuit that 500V tolerates voltage. It helps to which improve start-up speed with the start-up circuit loss reduction. This IC contributes to the high efficiency at light-load by frequency decrease function with Burst operation.
In addition, This IC is equipped with AC detection function and load detection function or a dedicated output terminal.
Thereby it is possible to realize a the start-stop control and output voltage control of the PFC circuit.


[Features]
1.Absolute maximum rating (HV pin)
500V
2.Recommended operating condition (VDD pin)
10 to 24V
3.PFC drive voltage (PSTB pin)
VDD
4.Operating current
0.72mA (TYP)
5.Frequency
27.7 to 75kHz (TYP)
6.The range of temperature
-30℃ to +125℃
7.Light load burst operation
8.Frequency decrease function
9.PFC circuit control function
AC detection, Load detection
10.Protective function
VDD overvoltage protection, external latch protection,
  
soft-start function, overload protection,
  
overcurrent protection, CS pin OPEN protection


[Package]


[Applications]
1. AC adapters
2. Game console
3. TV
4. Printer
5. Various consumer electronics


[Pin Assignment]

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SOP-10A
(TOP VIEW)
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1
PSTB
2
PCHG
3
CS
4
FB
5
DMG
6
GND
7
GATE
8
VDD
9
NC
10
HV


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[NOTE]
-Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
-The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
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