MP4051 Non-isolated Solution Offline LED Controller with Active PFC The Future of Analog IC Technology DESCRIPTION FEATURES The MP4051 is a non-isolated offline LED lighting controller that achieves high power factor and accurate LED current for single-stage PFC lighting applications in a single SOIC8 package. • Unique Architecture for Superior Line Regulation Achieve <1% Line and Load Regulation High Power Factor≥0.9 Over Universal Input Voltage Boundary Conduction Mode improves Efficiency Ultra-low (20µA) Start-up Current Low (1mA) Quiescent Current Input UVLO Cycle-by-cycle Current Limit Over-voltage Protection Short-circuit Protection Over-temperature Protection Available in an SOIC8 Package • • The MP4051 integrates power factor correction and works in boundary conduction mode to reduce the MOSFET switching losses. • • • • • • • • • The extremely low start-up current and quiescent current reduces the total power consumption and provides a high-efficiency solution for nonisolated lighting applications. The multi-protection features of MP4051 greatly enhance system reliability and safety. The MP4051 features over-voltage protection, shortcircuit protection, cycle-by-cycle current limiting, VCC UVLO, and auto-restart over-temperature protection. APPLICATIONS • • • Solid-state Lighting Industrial and Commercial Lighting Residential Lighting All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page. “MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power Systems, Inc. The MP4051 is under patent pending. TYPICAL APPLICATION (HIGH-SIDE BUCK-BOOST TOPOLOGY) 4 1 3 2 EMI Filter MP4051 Rev. 1.01 1/21/2014 GATE CS MULT FB VCC GND ZCD COMP 5 7 6 8 MP4051 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 1 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC ORDERING INFORMATION Part Number* Package SOIC8 MP4051GS Top Marking MP4051 * For Tape & Reel, add suffix –Z (e.g. MP4051GS–Z); PACKAGE REFERENCE TOP VIEW MULT 1 8 COMP ZCD 2 7 FB VCC 3 6 GND GATE 4 5 CS SOIC8 (4) ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance Input Voltage VCC ......................... -0.3V to +30V ZCD Pin ............................................ -7V to +7V Other Analog Inputs and Outputs..... -0.3V to 7V Max. Gate Current ....................................±1.2A Continuous Power Dissipation (TA = +25°C) (2) SOIC8........................................................1.3W Junction Temperature.............................. 150°C Lead Temperature ................................... 260°C Storage Temperature............... -65°C to +150°C SOIC8 ...................................96 ...... 45 ...°C/W Recommended Operating Conditions (3) Supply Voltage VCC ....................... 10.3V to 23V Operating Junction Temp. (TJ). -40°C to +125°C θJA θJC Notes: 1) Exceeding these ratings may damage the device. 2) The maximum allowable power dissipation is a function of the maximum junction temperature TJ(MAX), the junction-toambient thermal resistance θJA, and the ambient temperature TA. The maximum allowable continuous power dissipation at any ambient temperature is calculated by PD(MAX)=(TJ(MAX)TA)/ θJA. Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. 3) The device is not guaranteed to function outside of its operation conditions. 4) Measured on JESD51-7 4-layer board. MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 2 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC ELECTRICAL CHARACTERISTICS VCC = 14V, TA = +25°C, unless otherwise noted. Parameter Supply Voltage Symbol Operating Range Turn-on Threshold Turn-off Threshold Hysteretic Voltage Supply Current Start-up Current Quiescent Current Operating Current Multiplier Operation Range Gain VCC VCC_ON VCC_OFF VCC_HYS ISTARTUP IQ ICC Condition Min After turn on VCC rising edge VCC falling edge 10.3 12.6 8.4 VCC=11V No switching Fs =70kHz Typ Max Units 23 14.6 9.6 V V V V 30 1 3 µA mA mA 3 V 1/V 0.425 V 13.6 9.0 4.5 20 0.75 2 VMULT (5) K 0 VFB 0.403 1 Error Amplifier Feedback Voltage Transconductance (6) GEA 0.414 222 µA/V Upper Clamp Voltage VCOMP_H 5.3 5.65 6 Lower Clamp Voltage VCOMP_L 1.3 1.5 1.7 Max Source Current (6) V V ICOMP 75 µA ICOMP -400 µA Leading Edge Blanking Time tLEB 280 ns Current Sense Clamp Voltage VCS_CLAMP Max Sink Current (6) Current Sense Comparator 2.3 2.5 2.7 V Zero Current Detector Zero Current Detect threshold VZCD_T Zero Current Detect Hysteresis VZCD_HYS VZCD falling edge ZCD Blanking Time tLEB_ZCD After turn-off Over-voltage Blanking Time Over-voltage Threshold tLEB_OVP VZCD_OVP Over-current Blanking Time tLEB_OCP After turn-off 1.5μs delay after turn-off After turn-on, same as tLEB Over-current Threshold VZCD_OCP Minimum Off Time tOFF_MIN 280ns delay after turn-on 0.31 V 650 mV 1.8 2.5 5.1 1.5 5.4 3.2 μs 5.7 μs V 280 ns 0.57 0.60 0.63 V 2 3.5 5 µs Starter Start Timer Period tSTART 130 MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. µs 3 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC ELECTRICAL CHARACTERISTICS (Continued) VCC = 14V, TA = +25°C, unless otherwise noted. Parameter Gate Driver Symbol Output Clamp Voltage Minimum Output Voltage (6) Max Source Current (6) Max Sink Current Condition VGATE_CLAMP VCC=23V VGATE_MIN VCC=VCC_OFF + 50mV Min Typ Max Units 12 13.5 15 V 6.0 V IGATE_SOURCE 1 A IGATE_SINK -1.2 A Notes: 5) The multiplier output is given by: VCS=K•VMULT• (VCOMP-1.5) 6) Guaranteed by design. MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 4 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC PIN FUNCTIONS Pin # Name 1 MULT 2 ZCD 3 VCC Pin Function Multiplier input. Connect this pin to the tap of resistor divider from the rectified voltage of the AC line. The half-wave sinusoid signal to this pin provides a reference signal for the internal current control loop. Zero-current detection. A negative going-edge triggers the turn-on signal of the external MOSFET. Connect this pin to a resistor divider between the auxiliary winding to GND. Overvoltage condition is detected through ZCD. Every switching turn-off interval, if ZCD voltage is higher than the over-voltage-protection (OVP) threshold after the 1.5µs blanking time, the over-voltage protection will be triggered and the system will stop switching until auto-restart comes. ZCD pin can also monitor over-current condition. Connect this pin thru a diode to a resistor divider between CS to GND. Every switching turn-on interval, if ZCD voltage is higher than the over-current-protection (OCP) threshold after the 280ns blanking time, the over-current protection will trigger and the system will stop switching until auto-restart comes. Power supply input. This pin supplies the power for the control signal and the high-current MOSFET grade drive output. Bypass this pin to ground with an external bulk capacitor of typically 22µF in parallel with a 100pF ceramic cap to reduce noise. Gate drive output. This totem pole output stage is able to drive a high-power MOSFET with a peak current of 1A source capability and 1.2A sink capability. The high level voltage of this pin is clamped to 13.5V to avoid excessive gate drive voltage. And the low level voltage is higher than 6V to guarantee enough drive capacity. Current sense. The MOSFET current is sensed via a sensing resistor to its source lead. The comparison between the resulting voltage and the internal sinusoidal-current reference signal determines when the MOSFET turns off. In Buck-Boost solution (both high side and low side), CS Pin is also used for current sample. A feed-forward from the rectified AC line voltage connected to the current sense pin maximizes the line regulation. If the pin voltage is higher than the current limit threshold of 2.5V (after turn-on blanking) the gate drive will turn off. 4 GATE 5 CS 6 GND 7 FB/NC Feedback signal. This Pin is used for current sample in high side Buck-Boost or Buck, and it’s benefit for load regulation to sample the current through FB Pin. Leave this pin floating (NC) in low side Buck-Boost solution. 8 COMP Loop compensation input. Connect a compensation network to stabilize the LED drive and maintain an accurate LED current. Ground. Current return for the control signal and the gate drive signal. MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 5 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC TYPICAL PERFORMANCE CHARACTERISTICS VIN =120VAC/220VAC, VO =300V, ILED=80mA, Lm=1.88mH, NP:NAUX =161: 13, unless otherwise noted. Efficiency vs. VIN 100 92.0 90 PF 120 1 PK CLRWR 70 89.0 60 88.0 50 87.0 60 86.0 50 2 AV CLRWR 90 TDS 80 70 85.0 20 84.0 20 83.0 10 0 85 125 165 205 245 265 VIN (VAC) 120 100kHz 1 MHz 82.0 85 6DB EN55015A 40 30 THD 10 MHz SGL 90.0 10 1 MHz 100 80 40 100kHz EN55015Q 110 91.0 30 0 125 165 205 245 265 9kHz 30MHz VIN (VAC) 10 MHz EN55015Q 110 1 PK CLRWR 2 AV CLRWR SGL 100 90 TDS 80 70 60 50 6DB EN55015A 40 30 20 10 0 9kHz 30MHz MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 6 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC TYPICAL PERFORMANCE CHARACTERISTICS (continued) VIN =120VAC/220VAC, VO =300V, ILED=80mA, Lm=1.88mH, NP:NAUX =161: 13, unless otherwise noted. VIN 100V/div. IIN 200mA/div. ILED 20mA/div. VCOMP 2V/div. VCC 10V/div. VFB 500mV/div. VZCD 2V/div. VMULT 2V/div. VGATE 5V/div. VIN 200V/div. IIN 200mA/div. ILED 20mA/div. VIN 100V/div. VCOMP 2V/div. VCC 10V/div. VFB 500mV/div. VMULT 2V/div. VZCD 2V/div. VGATE 5V/div. VIN 200V/div. VCC 10V/div. IIN 200mA/div. IIN 200mA/div. ILED 20mA/div. ILED 20mA/div. VZCD 2V/div. VGATE 10V/div. MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 7 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC TYPICAL PERFORMANCE CHARACTERISTICS (continued) VIN =120VAC/220VAC, VO =300V, ILED=80mA, Lm=1.88mH, NP:NAUX =161: 13, unless otherwise noted. VCC 10V/div. VZCD 2V/div. VGATE 10V/div. VCC 10V/div. VZCD 2V/div. VFB 500mV/div. VOUT 100V/div. ILED 20mA/div. VCC 10V/div. VZCD 2V/div. VFB 500mV/div. VOUT 100V/div. ILED 20mA/div. MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 8 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC FUNCTION DIAGRAM Figure 1—MP4051 Function Block Diagram MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 9 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC OPERATION The MP4051 is a non-isolated control offline LED controller which incorporates all the features for high-performance LED lighting. Active Power Factor Correction (PFC) eliminates unwanted harmonic noise to pollute the AC line. In low-side Buck-Boost, the mean output LED current is calculated through the peak current sensed from the MOSFET (through CS Pin). And the mean output LED current can be calculated approximately as: Start Up Initially, VCC of the MP4051 is charged through the start up resistor from the AC line. When VCC reaches 13.6V, the control logic works and the gate drive signal begins to switch. Then the power supply is taken over by the auxiliary winding. The MP4051 will shut down when VCC drops below 9V. Boundary Conduction Mode Operation Io ≈ VFB—The feedback reference voltage (typical 0.4V) RFB—The sensing resistor connected between the FB RC filter and GND in high-side solution. Rs—The sensing resistor connected between the MOSFET source and GND in low-side BuckBoost. During the external MOSFET on time (tON), the rectified input voltage (VBUS) applies to the inductor (Lm), and the inductor current (ILm) increases linearly from zero to the peak value (Ipk). When the external MOSFET turns off, the output diode is turned on and the energy stored in the inductor is transferred to the load. Then the inductor current (ILm) begins to decrease linearly from the peak value to zero. The auxiliary winding is coupled with the inductor to supply the Vcc voltage and turn on signal detection for ZCD. The zero-current detector in the ZCD pin generates the turn-on signal of the external MOSFET when the ZCD voltage falls below 0.31V (see Figure 3). As a result, there are virtually no MOSFET turnon losses and no output-diode reverse-recover losses. It ensures high efficiency and low EMI noise. Real Current Control In high-side solution (including both Buck and Buck-Boost), the current is controlled through FB Pin, the mean output LED current is directly sampled by FB pin, so the load regulation of high-side solution is good. The output LED current can be set as: Io = VFB RFB VFB 2 ⋅ Rs VDS VBUS+ VOUT VBUS turn-on toff I pk ILm ton I Lm VZCD 0 Figure 2—Boundary Conduction Mode (Buck-Boost for example) Auxiliary Winding + Vcc RZCD1 ZCD turn-on signal 0.31V RZCD2 CZCD Figure 3—Zero Current Detector MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 10 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC Power Factor Correction The MULT pin is connected to the tap of the resistor divider from the rectified instantaneous line voltage and fed as one input of the Multiplier. The output of the multiplier will be shaped as sinusoid too. This signal provides the reference for the current comparator and comparing with the inductor current which sets the inductor peak current shaped as sinusoid with the input line voltage. High power factor can be achieved. Multiplier output Inductor current off, if ZCD fails to send out another turn on signal after 130µs, the starter will automatically send out the turn on signal which can avoid the IC unnecessary shut down by ZCD missing detection. Minimum Off Time The MP4051 operates with variable switching frequency, the frequency is changing with the input instantaneous line voltage. To limit the maximum frequency and get a good EMI performance, MP4051 employs an internal minimum off time limiter—3.5µs, show as Figure 6. ZCD Figure 4—Power Factor Correction Scheme The maximum voltage of the multiplier output to the current comparator is clamped to 2.5V to get a cycle-by-cycle current limitation. VCC Under-voltage Lockout When the VCC voltage drops below UVLO threshold 9V, the MP4051 stops switching and totally shuts down, the VCC will restart charging by the external start up resistor from AC line. Figure 5 shows the typical waveform of VCC under-voltage lockout Auxiliary Winding Takes Charge And Regulates the VCC Vcc Protection happens 13.6V 9V GATE 3.5us Figure 6—Minimum Off Time Leading Edge Blanking In order to avoid the premature termination of the switching pulse due to the spike at MOSFET turning on, an internal leading edge blanking (LEB) unit is employed between the CS Pin and the current comparator input. During the blanking time, the path, CS Pin to the current comparator input, is blocked. Figure 7 shows the leading edge blanking. VCS Gate Switching Pulses tLEB =280 ns Figure 5—VCC Under-Voltage Lockout Auto Starter The MP4051 integrates an auto starter, the starter starts timing when the MOSFET is turned t Figure 7—Leading Edge Blanking MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 11 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC Output Over-Voltage Protection (OVP) Output over voltage protection can prevent the components from damage in the over voltage condition. The positive plateau of auxiliary winding voltage is proportional to the output voltage, the OVP uses the auxiliary winding voltage instead of directly monitoring the output voltage, the OVP sample is shown in Figure 8. Once the ZCD pin voltage is higher than 5.4V after a 1.5us blanking time, the OVP signal will be triggered and latched, the gate driver will be turned off and the IC work at quiescent mode, the VCC voltage dropped below the UVLO which will make the IC shut down and the system restarts again. The output OVP setting point can be calculated as: VOUT _ OVP ⋅ NAUX R ZCD2 ⋅ = 5.4V NSEC R ZCD1 + R ZCD2 VOUT_OVP—Output over voltage protection point NAUX—The auxiliary winding turns NSEC—The secondary winding turns Auxiliary Winding + Vcc RZCD1 ZCD OVP signal Latch 5.4V RZCD2 CZCD VZCD Sampling Here 0V tLEB _OVP Figure 9—ZCD Voltage and OVP Sample Output Short Circuit Protection The MP4051 clamps the CS pin voltage to less than 2.5V to limit the available output power. When the short circuit of the LED load occurs, the voltage of the auxiliary winding will fall down following the voltage of the Load and the VCC drops to less than UV threshold and re-start the system. As supplementary, tie a resistor divider form CS sensing resistor to ZCD pin, shown in Figure 10. When the power MOSFET is turned on, the ZCD pin monitors the rising inductor current, once the ZCD pin reaches OCP threshold, typical 0.6V, the gate driver will be turned off to prevent the chip form damage and the IC works at quiescent mode, the VCC voltage dropped below the UVLO which will make the IC shut down and the system restarts again. Please note that the value of the resistors to set the OCP threshold (ROCP1 & ROCP2) should be much smaller than those of the ZCD zero-current detector (RZCD1 & RZCD2). Primary Winding VBUS 1.5µs Blanking Figure 8—OVP Sample Unit To avoid the mis-trigger OVP by the oscillation spike after the switch turns off, the OVP sampling has a tLEB_OVP blanking period, typical 1.5µs, shown in Figure 9. The current-limiting resistor between the output of the aux-winding and the ZCD resistor divider can also work as suppresser to avoid the OVP mis-trigger. GATE PSR control RCS ROCP1 ZCD OCP signal Latch CS 0 .6 V D ROCP2 280ns Blanking Figure 10—OCP Sample Unit MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 12 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC The OCP setting point can be calculated as: IPRI _ OCP ⋅ RCS ⋅ R OCP2 − VD = 0.6V ROCP1 + ROCP2 IPRI_OCP—Primary-side over current protection point. For some applications, the inductor value is very small, the minimal-off time feature could make the system work in DCM at the zero-crossing of the BUS voltage. To improve the OCP function in this condition, please remove CZCD and reduce the value of RZCD1 and RZCD2 proportionally. Thermal Shut Down To prevent from any lethal thermal damage, when the inner temperature exceeds OTP threshold, the MP4051 shuts down switching cycle and latched until VCC drop below UVLO and restart again. Design Example For the design example, please refer to MPS application note AN0xx for the detailed design procedure and information. MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 13 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC TYPICAL APPLICATION CIRCUIT LEDR9 2.2/1% 1206 R8 1.1/1% 1206 BD1 KBP206 600V/2A R3 1M R5 510k D5 HER208 1kV/2A R16 150k/1% 1206 R10 3.3/1% 1206 R6 51 1 R1 1k/1% 1206 R4 10k C1 1% 220nF 400V R2 1k/1% 1206 C2 22nF 16V 2 F1 250V/2A COMP ZCD FB PGND R13 100 8 7 13Ts 0.20mm PGND R11 R15 R12 510/1% R16 1k/1% 3k/1% 16k/1% AGND MP4051 3 AGND D1 BZT52C27 27V/2mA L3 20mH 500mA MULT VCC GND 6 CS 5 4 GATE D3 1N4148WS 75V/0.15A AGND PGND PGND RV1 ERZ-V10D431 430V/2500A LED+ 161Ts 0.33mm U1 L2 L1 3.3mH 3.3mH 500mA 500mA CX1 100nF/275VAC OUTPUT: 200-300V/80mA D4 75V/0.15A 1N4148WS AGND D2 BAV21W 200V/0.2A R7 51/1% 1206 85-265VAC Figure 11—Universal Input, Non-isolated High-side Buck-boost Converter, Drive 200V-300V/80mA LED Lamp M1 SM K0870F/700V/8A LED+ BD1 MB6S/600V/0.5A C5 100nF/400VAC D1 S3J/600V/4A LED- GND GND R12 4k/1%/0603 U1 1 2 3 GATE 4 D3 BZT52C16/16V/5mA L N GND GATE LED+ GND D4 WGC10GH/400V/1A GND MULT COMP ZCD 8 ZCD FB 7 VCC GND 6 GATE CS 5 D2 1N4148WT/75V/0.15A R7 5k/1206 MP4051 R16 1M/0603 VCC Figure 12—100VAC Input, Non-isolated High-side Buck Converter, Drive 12 LEDs in Series, 150mA LED Current for 6W LED Bulb Lighting MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 14 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC MULT COMP ZCD FB VCC GND GATE CS MP4051 Figure 13—Universal Input, Non-isolated Low-side Buck-boost Converter, Drive 19 LEDs in Series, 350mA LED Current for 21W LED Tube Lighting MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 15 MP4051—NON-ISOLATED OFFLINE LED CONTROLLER WITH ACTIVE PFC PACKAGE INFORMATION SOIC8 0.189(4.80) 0.197(5.00) 8 0.050(1.27) 0.024(0.61) 5 0.063(1.60) 0.150(3.80) 0.157(4.00) PIN 1 ID 1 0.228(5.80) 0.244(6.20) 0.213(5.40) 4 TOP VIEW RECOMMENDED LAND PATTERN 0.053(1.35) 0.069(1.75) SEATING PLANE 0.004(0.10) 0.010(0.25) 0.013(0.33) 0.020(0.51) 0.0075(0.19) 0.0098(0.25) SEE DETAIL "A" 0.050(1.27) BSC SIDE VIEW FRONT VIEW 0.010(0.25) x 45o 0.020(0.50) GAUGE PLANE 0.010(0.25) BSC 0o-8o 0.016(0.41) 0.050(1.27) DETAIL "A" NOTE: 1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN BRACKET IS IN MILLIMETERS. 2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. 3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. 4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.004" INCHES MAX. 5) DRAWING CONFORMS TO JEDEC MS-012, VARIATION AA. 6) DRAWING IS NOT TO SCALE. NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. MP4051 Rev. 1.01 www.MonolithicPower.com 1/21/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 16