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 POWER SUPPLY ICs
ICS
Primary-Side Power Control IC for LED Lights
Monolithic IC MM3460XF
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[Outline]
This IC is a PFC switching power control IC for LED lights.
It uses a one-converter system into which a PFC (Power Factor Correction) circuit and an AC-DC converter become integrated. Compared to a regular two-converter, a high-efficient configuration can be achieved due to reduction in the number of parts and little power loss. In addition, there is me as the protection setting that built-in specialized input low voltage, overvoltage protection, output overvoltage with a delay, a short protection circuit in for one-converter / for LED lights as a protection circuit and I compare it with conventional PFC-IC and can set it with few part marks.
Moreover, the consumption of start-up current and current during operation are lowered for low standby mode electricity.
This IC uses SOP-8 package and supports flow conditions.


[Features]
Limits for harmonic current emissions (one-converter system)
PF≅0.99 (reference value)
High efficiency: 88% (reference value, at rated load)
Reduction in the number of parts by not using an active filter (PFC) control circuit
Longer life can be achieved by not using the primary electrolytic capacitor

1. High voltage input :  28V
2. LED output :           5~60W
3. Critical conduction current mode
4. Built-in input UVLO, overvoltage protection (28V Zener) circuits
5. Built-in output (FB) short, overvoltage protection circuits (with a delay feature)
   *This Function is original protection
6. Start-up current (30µA), current during operation (1mA)


[Package]


[Applications]
1. LED lighting devices
2. LED bulbs
3. Other power supplies


[Pin Assignment]

SOP-8D
(TOP VIEW)
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1
FB
2
COMP
3
MUL
4
ISNS
5
ZCD
6
GND
7
OUT
8
VCC


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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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