Primary-Side Power Control IC for LED Lights MM3460XF Primary-Side Power Control IC for LED Lights Monolithic IC MM3460XF 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 ow conditions. Features Limits for harmonic current emissions (one-converter system) PF 0.99 (reference value) High efciency: 88% (reference value, at rated load) Reduction in the number of parts by not using an active lter (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) Applications 1. LED lighting devices 2. LED bulbs 3. Other power supplies • 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.

Primary-Side Power Control IC for LED Lights MM3460XF PROTECT LOGIC RESTART TIMER Multiplier ERR Amp Thermal TSD Shut Down Level shift • 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.

Primary-Side Power Control IC for LED Lights MM3460XF Internal Equivalent Circuit Current Comp. Input of the error amplier. Output of the error amplier. Input to the multiplier. ESD Protection Device Input to the current comparator 4 for sensing MOSFET current signal. Input for the transformer zero detect comparetor. Gate driver Output for driving MOSFET. Power supply. • 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...

Primary-Side Power Control IC for LED Lights MM3460XF Absolute Maximum Ratings (Except where noted otherwise Ta=25°C) • 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.

Primary-Side Power Control IC for LED Lights MM3460XF Electrical Characteristics (Except where noted otherwise Ta=25°C, VCC=15V) Measurement conditions Start-up power supply current Power supply current Under voltage lockout release voltage VUVLORelease Under voltage lockout hysteresis voltage VUVLOhys Under voltage lockout (UVLO) ERR Amplier Pullup resistance COMP pin source current COMP pin sink current Multiplier Amplication ratio K Multiplier input voltage ZCD Input high clamp voltage VZCDclampH Delay time Output rise time Output fall time Multiplier clamp voltage Zero current detect ZCD...

Primary-Side Power Control IC for LED Lights MM3460XF Measurement conditions FB OVP detection deley time FB short Detection FB Short detection voltage FB Short detection hysteresis voltage VFBSVPhys Over Power Detection Over Power detection voltage Thermal Shut Down • 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.

Primary-Side Power Control IC for LED Lights MM3460XF Measuring Circuit IDDOFF, IDDON, VUVLO, VUVLORelease, VUVLOhys A VVCCclamp, VZCDclampH, VZCDclampL RONsink, RONsource, Trise, Tfall RPULLUP, IFB, ICOMPSource, ICOMPSink 15V K, VMUL, VCOMP, VMULclamp, VISOPP, TISNS 15V VZCDDET, TRESTART, VZERO, VFBSVP, VFBSVPhys,VFBOVP, TFBOVPhys 15V • 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...

Primary-Side Power Control IC for LED Lights MM3460XF Timing Chart ©VAC Rectification dtiiw^ <AtiWh> dfflfah./itfi/Wfe^ ^/w/^ ^wi^ Short detect release Deley time • 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.

Primary-Side Power Control IC for LED Lights MM3460XF Application Circuit DC OUTPUT LED 5~60W RESTART TIMER 5V 20k Multiplier ERR Amp Thermal TSD Shut Down MM1837(Shunt Reg.+OP Amp.×2) Constant current constant voltage control circuit • 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.