MP44010HS-LF-Z

MP44010 Boundary Mode PFC Controller The Future of Analog IC Technology DESCRIPTION FEATURES The MP44010 is a boundary conduction mode PFC controller which can provide simple and high performance active power factor correction using minimum external components. • The output voltage is accurately regulated by a high performance voltage mode amplifier with an accurate internal voltage reference. • Boundary Conduction Mode PFC Controller for Pre-regulator Zero-crossing Compensation to Minimum THD of AC Input Current Precise Adjustable Output Over-voltage Protection Ultra-low (15μA) Start-up Current. Low (0.46mA) Quiescent Current On-chip Filter on Current Sense Pin Disable Function -800/+1150mA Peak Gate Drive Current Available in SOIC-8 Package • • • • • • • The precise adjustable output over-voltage protection greatly enhances the system reliability. The on-chip R/C filter on the current sense pin can eliminate the external R/C filter. APPLICATIONS The extremely low start-up current, quiescent current and the disable function can reduce the power consumption and result in excellent efficiency performance. • • • • The MP44010 is available in SOIC-8 package. Offline Adaptor Electronic Ballast LLC Front End Other PFC Pre-regulators All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. Other Patents Pending. TYPICAL APPLICATION D4 L1 R3 D2 D3 D1 Vo R9 C2 R4 R5 C4 R6 R1 C5 Vac C1 U1 ZCS VIN MULT R2 COMP MP44010 GND FB + R7 C6 Q1 GATE CS R10 C3 R8 MP44010 Rev. 1.2 3/18/2015 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 1 MP44010 – BOUNDARY MODE PFC CONTROLLER ORDERING INFORMATION Part Number Package SOIC-8 MP44010HS* Top Marking MP44010 * For Tape & Reel, add suffix –Z (e.g. MP44010HS–Z). For RoHS compliant packaging, add suffix –LF (e.g. MP44010HS–LF–Z) PACKAGE REFERENCE TOP VIEW FB 1 8 VIN COMP 2 7 GATE MULT 3 6 GND CS 4 5 ZCS ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance Supply Voltage VIN ................. -0.5V to Self Limit ZCS pin .................................. -0.3V to Self Limit Other Analog Inputs and Outputs ..-0.3V to 6.5V ZCS Max. current......................-2.5mA to 10mA Continuous Power Dissipation (TA = +25°C) (2) SOIC-8 ....................................................... 1.4W Junction Temperature………………… …..150°C Lead Temperature (Solder).......................260°C Storage Temperature............... -55°C to +150°C SOIC-8 ....................................90 ...... 45 ... °C/W Recommended Operating Conditions (3) Supply Voltage VIN .........................13.4V to 22V Analog inputs and outputs .............-0.3V to 6.5V Operating Junction Temp. (TJ). -40°C to +125°C MP44010 Rev. 1.2 3/18/2015 (4) 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 D(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 operating conditions. 4) Measured on JESD51-7, 4-layer PCB. www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 2 MP44010 – BOUNDARY MODE PFC CONTROLLER ELECTRICAL CHARACTERISTICS VIN = 15V, TA = TJ = -40°C to +125°C, unless otherwise noted Parameter Supply Voltage Operating Range Turn On Threshold Turn Off Threshold Hysteresis Zener Voltage Supply Current Start-up Current Quiescent Current Symbol Condition Min VIN VIN_on VIN_off VIN_hys Vz After turn on 10.7 11 8.7 2.1 22 Istartup Iq VIN=11V No switch During OVP(either static or dymanic) or VIN≤150mV Fs =70kHz, CLOAD=1nF Quiescent Current Iq Operating Current Multiplier Input Bias Current Linear Operation Range Icc IIN=20mA IMULT VMULT Gain(5) K Max Units 25 22 13.5 10.7 3 28 V V V V V 15 0.46 40 0.65 µA mA 12.4 9.8 0.42 1.6 mA 2.5 mA -1 µA V 0 to 3 VMULT=0 to 1V , ΔVCS/ΔVMULT VCOMP=upper clamp, TJ = 25°C Output Max. Slope Typ 1.5 1.73 V/V VMULT=1V, VCOMP=4V 0.45 0.64 0.8 1/V TJ = 25°C 2.465 2.5 2.535 V VIN =10.7V to 22V TJ = -40°C to +125°C 2.44 Error Amplifier Feedback Voltage Feedback Regulation Voltage VFB Line VFB_LR Feedback Bias Current IFB Open Loop Voltage Gain GV Gain-Bandwidth Product GB Source Current VIN =10.7V to 22V 2.56 2 60 5 mV 0.2 µA 80 dB 1 MHz ICOMP_source -5.5 -3 Sink Current ICOMP_sink 2.5 5.5 Upper Clamp Voltage VCOMP_H 5.3 6 6.6 V Lower Clamp Voltage VCOMP_L 1.8 2.1 2.3 V -1 450 1.83 µA ns V mV mV Current Sense Comparator Input Bias Current Delay Current Sense Clamp Voltage VCS_Clamp Current Sense Offset VCS_Offset MP44010 Rev. 1.2 3/18/2015 ICS TDT 1.58 VMULT=0V VMULT=2.5V 300 1.72 30 5 -1 mA mA www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 3 MP44010 – BOUNDARY MODE PFC CONTROLLER ELECTRICAL CHARACTERISTICS (continued) VIN = 15V, TA = TJ =-40°C to +125°C, unless otherwise noted. Parameter Zero Current Sensor Upper Clamp Voltage Lower Clamp Voltage Zero Current Sensing Threshold ZCS_EN Threshold ZCS_EN Hysteresis Source Current Capability Restart Current After Disable Re-Starter Re-Start Time Over-Voltage Dynamic OVP Current Hysteresis Static OVP Threshold Gate Driver Dropout Voltage Symbol Condition Min Typ Max Units IZCS=2.5mA IZCS=-1.8mA VZCS rising VZCS falling VZCS rising 7.2 0.3 8.35 0.8 2.5 57 7.8 0.55 2.1 1.35 310 120 4 85 V V V V mV mV mA µA Tstart 80 175 280 µs IOVP 29 49 IOVP_Hys VOVP 1.85 39 30 2.15 µA µA V VZCSclamp_H VZCSclamp_L VZCS_H VZCS_L VZCS_EN_R VZCS_EN_hys IZCS_source IZCS_res VOH VOL Tf Tr VD_max Voltage Fall Time Voltage Rise Time Max Output Drive Voltage Source Current Capability Sink Current Capability IGate_source IGate_sink UVLO Saturation Voltage VSaturation 0.9 IGDsource=20mA IGDsource=200mA IGDsink=200mA 12 VIN=0 to VIN_ON, IGate_sink=10mA 2.4 3.9 0.5 30 40 13.5 -800 1150 2.35 3.1 4.5 1.5 70 80 14 V V V ns ns V mA mA 0.3 V Note: 5) The multiplier Gain is calculated by: K=Vcs /(VMUTL·(VCOMP-2.5)) MP44010 Rev. 1.2 3/18/2015 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 4 MP44010 – BOUNDARY MODE PFC CONTROLLER TYPICAL PERFORMANCE CHARACTERISTICS 14 10 100 Operating Current 13 10 1 12 Quiescent Current 1 Rising 11 0.1 Falling 0.1 10 0.01 Start-up Current 0 5 10 15 20 25 30 28 0.01 -50 0 50 9 100 150 8 -50 2.6 500 2.55 400 2.5 300 2.45 200 0 50 100 150 26 24 20 -50 0 50 100 150 2.4 -50 1.8 50 1.6 1.4 45 1.2 1 40 0.8 0 50 100 150 0 50 100 150 0 50 100 150 0.8 0.6 0.4 0.6 35 100 -50 1 COMP=Upper clamp 22 0.4 0.2 0.2 30 -50 0 MP44010 Rev. 1.2 3/18/2015 50 100 150 0 0 1 2 3 4 0 -50 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 5 MP44010 – BOUNDARY MODE PFC CONTROLLER TYPICAL PERFORMANCE CHARACTERISTICS (continued) ZCS Clamp Levels vs. TJ Gate-Drive Output High Saturation UPPER CLAMP 6 4 2 0 -50 LOWER CLAMP 0 MP44010 Rev. 1.2 3/18/2015 50 100 150 10 2 8 1.5 VGD DROPOUT (V) 8 VGD DROPOUT (V) MULTIPLIER GAIN 10 Gate-Drive Output Low Saturation 6 4 2 0 100 200 300 400 500 600 IGD (mA) 1 0.5 0 0 100 200 300 IGD (mA) www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 400 500 6 MP44010 – BOUNDARY MODE PFC CONTROLLER TYPICAL PERFORMANCE CHARACTERISTICS (continued) Performance waveforms are generated using the evaluation board built with design example on page 11. VAC=220V, VOUT=400V, POUT=100W, TA=25oC, unless otherwise noted. MP44010 MP44010 Rev. 1.2 3/18/2015 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 7 MP44010 – BOUNDARY MODE PFC CONTROLLER PIN FUNCTIONS Pin # 1 Name FB 2 COMP 3 MULT 4 CS 5 ZCS 6 GND 7 GATE 8 VIN MP44010 Rev. 1.2 3/18/2015 Description Feedback pin. The output voltage is fed into this pin through a resistor divider. Output of the error amplifier. A compensation network is connected between this pin and FB pin. Input of the multiplier. Connect this pin to the rectified main voltage via a resistor divider to provide the sinusoidal reference for the current control loop. Current sense pin. The current through MOSFET is fed into this pin via a resistor. The resulting voltage on this pin is compared with the output of internal multiplier to get an internal sinusoidal-shaped reference, to determine MOSFET’s turn-off. On-chip R/C filter can reduce high frequency noise on this pin. Inductor’s zero-crossing current sensing input. A negative-transition edge triggers MOSFET’s turn-on. Ground. Gate driver output. The high output current of the gate driver is able to drive low-cost power MOSFET. The high-level voltage of this pin is clamped to 12V in case this pin is supplied with a high VIN. Supply voltage of both the signal path of the IC and the gate driver. A bypass capacitor from this pin to ground is needed to reduce noise. www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 8 MP44010 – BOUNDARY MODE PFC CONTROLLER BLOCK DIAGRAM ZCS Disable Voltage regulator - 2.1V 1.35V + + Vref - UVLO VIN Starter Driver GATE S Q R Overvoltage detection GND - + 2pF - Multiplier + 150k CS MULT FB 2.5V COMP Figure 1—Functional Block Diagram MP44010 Rev. 1.2 3/18/2015 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 9 MP44010 – BOUNDARY MODE PFC CONTROLLER OPERATION The MP44010 is a boundary conduction mode PFC controller which is optimized for the PFC pre-regulator up to 300W and fully complies with the IEC1000-3-2 specification. Output Voltage Regulation The output voltage is sensed at the FB pin through a resistor divider from output voltage to ground. The accurate on-chip reference voltage and the high performance error amplifier regulate the output voltage accurately. Over-Voltage Protection (OVP) The MP44010 offers two stages of over-voltage protection: dynamic over-voltage protection and static over-voltage protection. With two-stage protection, the circuit can operate reliably. The MP44010 achieves OVP by monitoring the current flow through the COMP pin. At steady-state operation, the current flow through high-side feedback resistor R9 and lowside feedback resistor R10 is: IR9 = VO − VFB V = IR10 = FB R9 R10 If there is an abrupt rise on the output (ΔVO), and the compensation network connected between FB pin and COMP pin takes time to achieve high power factor (PF) due to the long RC time constant. The voltage on FB pin will still be kept at the reference value. The current through R10 remains equal to VFB/R10, but the current through R9 will become: ' = IR9 VO + ΔVO − VFB R9 This current has to flow into the COMP pin. At the same time, this current is monitored inside the chip. If it rises to 35µA, the output voltage of the multiplier will be forced to decrease and the energy delivering to output will be reduced. If this current continues to rise to about 40µA, the dynamic OVP could be triggered. Consequently, the gate driver is blocked to turn off the external power MOSFET and the device enters an idle state. This state is maintained until the current falls below 10µA, the point at which, the internal starter will be re-enabled and allows the switching to restart. MP44010 Rev. 1.2 3/18/2015 When the load is very light, the output voltage tends to stay steadily above the nominal value. In this condition, the error amplifier output will saturate low. When the error amplifier output is lower than 2.2V, static OVP will be triggered. Consequently, the gate driver will be blocked to turn off the external power MOSFET and the device enters an idle state. Normal operation is resumed once the error amplifier output goes back into the regulated region. UVLO Driver GATE Vo IR9 Overvoltage detection R9 FB - Multiplier + MULT 2.5V IR10 R10 COMP Figure 2—OVP Detector Block Disable Function The MP44010 can be disabled by pulling the zero current sensing (ZCS) pin lower than 190mV. This can help to further reduce quiescent current when the PFC pre-regulator needs to be shutdown. After releasing the ZCS pin, it will stay at lower clamp voltage when there is no external voltage from auxiliary winding. Boundary Conduction Mode V aux ZCS Disable 2.1V 1.35V starter + Driver GATE S Q R Figure 3—ZCS, Triggering and Disable Block www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 10 MP44010 – BOUNDARY MODE PFC CONTROLLER When the current of the Boost inductor reaches zero, the voltage on the inductor will be reversed. Then ZCS generates the turn-on signal of the MOSFET by sensing the falling edge of the voltage on the auxiliary winding coupled with the inductor. If the voltage of the ZCS pin rises above 2.1V, the comparator waits until the voltage falls below 1.35V. Once the voltage falls below 1.35V, the MP44010 turns on the MOSFET. The 7.8V high clamp and 0.55V low clamp protect the ZCS pin. The internal 175µs timer generates a signal to turn on the MOSFET if the driver signal has been low for more than 175µs. This also allows the MOSFET to turn on during start-up period since no signal is generated from ZCD then. Zero-crossing Compensation The MP44010 offers 30mV voltage offset for multiplier output near the zero-crossing of the line voltage which can force the circuit to process more energy at the bottom of the line voltage. With this function, the THD of the current could be evidently reduced. from the output of the multiplier. When the external power MOSFET turns on, the inductor current rises linearly. When the peak current hits the sinusoidal-shaped signal, the external power MOSFET begins to turn off and the diode turns on. The inductor current also begins to fall. When the inductor current reaches zero, the power MOSFET begins to turn on again, which causes the inductor current to start rising again. The power circuit works in boundary conduction mode, and the envelope of the inductor current is sinusoidal-shaped. The average input current is half of the peak current, so the average input current is also sinusoidal-shaped. A high power factor can be achieved through this control method. Multiplier output Inductor current Input average current To prevent redundant energy, this offset is reduced as the instantaneous line voltage increases. Therefore the offset will be negligible near the top of the line voltage. Power Factor Correction The MP44010 senses the inductor current through the current sense pin and compares to the sinusoidal-shaped signal which is generated Figure 4—Inductor Current Waveform The control flow chart of the MP44010 is shown in Figure 5. Turn On COMP Clamp to 2.2V N VZCD 12.4V Latch off IC Very low consumption N Monitor VIN Y VIN< 9.5 V V COMP