MP020A-5 MPS | Alldatasheet
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Technical content
Offline, Primary-Side Regulator with CC/CV Control and a 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 1 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved.
DESCRIPTION
The MP 020A-5 is an offline , primary-side regulator that provides accurate constant voltage and constant current regulation without an optocoupler or a secondary feedback circuit. The MP020A -5 has an integrated 700V MOSFET. The MP020A-5's variable off-time control allows a flyback converter to operate in discontinuous conduction mode (DCM). The MP020A-5 also features protection functions such as VCC under-voltage lockout (UVLO), over-current protection (OCP), over-temperature prot ection (OTP), open -circuit protection (OCkP), and over-voltage protection (OVP). Its internal high- voltage start-up current source and power - saving technolog ies limit the no-load power consumption to less than 30mW. The MP 020A-5's variable switching frequency technology provides natural spectrum shaping to smooth the EMI signature, making it suitable for offline , low-power battery charger s and adapters. The MP020A-5 is available in a SOIC8-7A package. Part Number RDS(ON) Maximum Output Power (85 - 265VAC) Adapter Open Frame MP020A-5GS 10Ω 5W 8W
FEATURES
Primary-Side Control without Optocoupler or Secondary Feedback Circuit Precise Constant Current and Constant Voltage Control (CC/CV) Integrated 700V MOSFET with Minimal External Components Variable Off Time, Peak-Current Control 550µA High-Voltage Current Source 30mW No-Load Power Consumption Programmable Cable Compensation OVP, OCP, OCkP, OTP, and VCC UVLO Natural Spectrum Shaping for Improved EMI Signature Low Cost and Simple External Circuit Available in a SOIC8-7A Package
APPLICATIONS
Cell Phone Chargers Adapters for Handheld Electronics Standby and Auxiliary Power Supplies Small Appliances All MPS parts are lead -free, halogen -free, and adhere to the RoHS directive. For MPS green sta tus, please visit the MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 2 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved.
ORDERING INFORMATION
Part Number* Package Top Marking MP020A-5GS SOIC8-7A See Below * For Tape & Reel, add suffix –Z (e.g. MP020A-5GS–Z) TOP MARKING MP020A-5: Product code of MP020A-5GS LLLLLLLL: Lot number MPS: MPS prefix Y: Year code WW: Week code PACKAGE REFERENCE TOP VIEW SOIC8-7A
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 3 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. ABSOLUTE MAXIMUM RATINGS (1) Continuous power dissipation (TA = +25°C) (2) Recommended Operating Conditions (3) Operating junction temp. (TJ). .. -40°C to +125°C Thermal Resistance (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 T J (MAX), the junction -to- ambient thermal resistance θJA, and the ambient temperature TA. The maximum allowable continuous power dissipation at any ambient temperature is calculated by P D (MAX) = (T J (MAX)-TA)/θJA. Exceeding the maximum allowable power dissipation produces an excessive die temperature, causing the regulator to 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.
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 4 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VCC = 15V, TA = 25°C, unless otherwise noted. Parameter Symbol Condition Min Typ Max Units Supply Voltage Management (VCC) VCC on threshold VCCH 16.8 17.3 17.8 V VCC off threshold VCCL 6 6.3 6.6 V VCC operating voltage 6.6 28 V Quiescent current IQ At no load condition, VCC = 20V 360 410 μA Operating current IOP 60kHz, VCC = 20V 500 μA Leakage current from VCC ILeak_VCC VCC = 0 16V, DRAIN floating 0.1 1 μA Internal MOSFET (DRAIN) Break-down voltage VBRDSS VCC = 20V, VFB = 7V 700 V Supply current from DRAIN ICharge VCC = 4V, VDRAIN = 100V 450 550 750 µA Leakage current from DRAIN ILeak_Drain VDS = 500VDC 1 10 µA On-state resistance RON ID = 10mA, TJ = 20°C 10 13 Ω Minimum switching frequency fMIN At no load condition 120 Hz Internal Current Sense Current limit ILimit VFB = -0.5V 365 380 395 mA Leading-edge blanking tLEB 230 300 370 ns Feedback Input (FB) FB input current IFB VFB = 4V, VCP = 3V 10 14 18 μA FB threshold VFB 3.93 4 4.07 V DCM detect threshold VDCM 80 120 160 mV FB open-circuit threshold VFBOPEN -0.22 -0.15 -0.08 V FB OVP threshold VFBOVP 6.2 6.35 6.5 V OVP sample delay tOVP 3.5 µs Output Cable Compensation (CP) Cable compensation voltage VCP Full load 2 V Thermal Shutdown Thermal shutdown threshold 150 °C Thermal shutdown recovery threshold 120 °C
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 5 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. TYPICAL CHARACTERISTICS
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 6 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. TYPICAL CHARACTERISTICS (continued)
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 7 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. TYPICAL PERFORMANCE CHARACTERISTICS Performance waveforms are tested on the evaluation board in the Design Example section. VIN = 230VAC, VOUT = 5V, IOUT = 1A, L = 1.6mH, TA = 25°C, unless otherwise noted.
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 8 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. TYPICAL PERFORMANCE CHARACTERISTICS (continued) Performance waveforms are tested on the evaluation board in the Design Example section. VIN = 230VAC, VOUT = 5V, IOUT = 1A, L = 1.6mH, TA = 25°C, unless otherwise noted. MP020A-5 CV/CC Characteristics 25℃ CV/CC Io(A) Vo(V) 265Vac 230Vac 115Vac 85Vac
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 9 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. PIN FUNCTIONS SOIC8-7A Pin # Name Description
1 VCC
Supply. The IC begins functioning when VCC charges to the on threshold (VCCH) through an internal high-voltage current source . When VCC falls below the off threshold ( VCCL), the internal high -voltage current source turns on to charge VCC. Connect a 0.1µF decoupling ceramic capacitor for most applications. 2, 5, 6 GND Ground. 3 FB Feedback. FB provides the output reference voltage and detects the falling voltage edges to determine the operation mode (CV mode or CC mode). 4 CP Output cable compensation. Connect a 1μF ceramic capacitor as a low pass filter. The upper resistor of the resistor divider connected to FB adjusts the compensation voltage. 8 DRAIN Internal MOSFET drain. DRAIN is the input for the high-voltage start-up current source.
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 10 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. BLOCK DIAGRAM Drain FB GND VCCProtection Unit DRV Current Sense Constant Current Control Constant Voltage Control Driving Signal Management Power Management Cable CompensationCP Start Up Unit Figure 1: Functional Block Diagram
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 13 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. Output Cable Compensation To compensate for the secondary -side cable voltage drop for a more precise output voltage, the MP020A-5 has an internal output cable compensation circuit (see Figure 5). The internal ZCD sample can detect the duty of the secondary-side diode. A low-pass filter converts the duty signal to a DC voltage (VCP) that changes as the load current varies. VCP can be converted to a current signal draw n from FB. The voltage drop on RUP helps the output cable compensation . When the system operates in the maximum load, the CP voltage reaches a maximum of 2V. CP DS + - VCP VoFB RUP RDOWN VFCP Figure 5: Output Cable Compensator Determine the compensation voltage with Equation (7): P _ AU SS FCP UP 3
5.6 D NV 2 R 360 10 N
Where VFCP is the secondary -side compensation voltage drop, DS is the secondary-diode duty cycle in CC mode (0.4 for the MP020A-5), RUP is the upper resistor of the resistor divider, NS is the number of turns for the secondary-side transformer windings, and NP_AU is the number of transformer auxiliary winding turns.
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 17 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. have the same turns and approximate parasitic capacitors (CSP1 and CSP2), but their hot spot is opposite (Point 9 and Point 10 in Figure 15 ). Therefore, the common mode noise current produced at the secondary-side windings can counteract each other. The transformer structure is simple if the application do es not need to pass the 3 -wire conducted EMI or use s a Y-cap. Figure 16 shows a schematic with a simple transformer structure.
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 19 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. TYPICAL APPLICATION CIRCUITS Figure 16: 5V/1A with Simple Transformer Structure
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET MP020A-5 Rev. 1.0 www.MonolithicPower.com 20 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. FLOW CHART Start Monitor VCC VCC>VCCH N Monitor Io Monitor V FB Monitor VCC Y VCC<VCCL Y N Io<Io_ref CC Operation CV Operation N Y OVP Operation Y N N OCkP Operation Y Shut Off Switching Pulse VFB>-0.15V for entire cycle VFB>6.35V for 3.5us Figure 17: Flow Chart
MP020A-5 – OFFLINE, PRIMARY-SIDE REGULATOR W/ CC/CV CONTROL AND 700V MOSFET 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. MP020A-5 Rev. 1.0 www.MonolithicPower.com 21 6/23/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved.
PACKAGE INFORMATION
PACKAGE OUTLINE DRAWING FOR SOIC8-7-2 MF-PO-D-0126, revision 0.0 0.016(0.41) 0.050(1.27)0o-8o DETAIL "A" 0.010(0.25) 0.020(0.50) x 45o SEE DETAIL "A" 0.0075(0.19) 0.0098(0.25) 0.150(3.80) 0.157(4.00)PIN 1 ID 0.050(1.27) BSC 0.013(0.33) 0.020(0.51) SEATING PLANE 0.004(0.10) 0.010(0.25) 0.189(4.80) 0.197(5.00) 0.053(1.35) 0.069(1.75) TOP VIEW FRONT VIEW 0.228(5.80) 0.244(6.20) SIDE VIEW 1 4 8 5 RECOMMENDED LAND PATTERN 0.213(5.40) 0.063(1.60) 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) JEDEC REFERENCE IS MS-012. 6) DRAWING IS NOT TO SCALE. 0.010(0.25) BSC GAUGE PLANE