MP020-5 MPS | Alldatasheet

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Technical content

Offline, Primary-Side Regulator with CC/CV Control and a 700V FET MP020-5 Rev. 1.05 www.MonolithicPower.com 1 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. The Future of Analog IC Technology

DESCRIPTION

The MP020-5 is an offline, primary-side regulator that provides accurate constant voltage and constant current regulation without an opto-coupler or a secondary feedback circuit. It has an integrated 700V MOSFET. The MP020-5's variable off-time control allows a flyback converter to operate in discontinuous conduction mode. The MP020-5 also features protection functions such as VCC under-voltage lockout, over-current protection, over- temperature protection, open circuit protection (OCkP) and over-voltage protection. Its internal high-voltage start-up current source and power- saving technologies limit the no-load power consumption to less than 30mW. The MP020-5's variable-switching-frequency technology provides natural spectrum shaping to smooth the EMI signature, making it suitable for offline, low-power battery chargers and adapters. The MP020-5 is available in SOIC8-7A. Maximum Output Power (85-265Vac) Part Num. RON Adapter Open Frame MP020-5GS 10Ω 5W 8W

FEATURES

  • Primary-Side–Control without Opto-Coupler 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
  • Multiple Protections: OVP, OCP, OCkP, OTP, and VCC UVLO
  • Natural Spectrum Shaping for Improved EMI Signature
  • Low Cost and Simple External circuit
  • SOIC8-7A Package

APPLICATIONS

  • Cell Phone Chargers
  • Adapters for Handheld Electronics
  • Stand-By and Auxiliary Power Supplies
  • Small Appliances 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. TYPICAL APPLICATION

MP020-5 – OFFLINE, PRIMARY-SIDE REGULATOR WITH CC/CV CONTROL AND A 700V FET MP020-5 Rev. 1.05 www.MonolithicPower.com 2 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved.

ORDERING INFORMATION

Part Number* Package Top Marking MP020-5GS SOIC8-7A MP020-5 * For Tape & Reel, add suffix –Z (e.g. MP020-5GS–Z); PACKAGE REFERENCE SOIC8-7A 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 powe r dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanen t damage. 3) The device is not guaranteed to function outside of its operating conditions. 4) Measured on JESD51-7, 4-layer PCB.

MP020-5 – OFFLINE, PRIMARY-SIDE REGULATOR WITH CC/CV CONTROL AND A 700V FET MP020-5 Rev. 1.05 www.MonolithicPower.com 3 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 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 Pin) 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, V CC=20V 360 410 μA Operating current IOP 60kHz, V CC=20V 500 μA Leakage current from VCC Pin I Leak_VCC V CC=0VÆ16V, Drain float 0.1 1 μA Internal MOSFET (Drain Pin) Break-down Voltage VBRDSS V CC=20V, VFB=7V 700 V Supply current from Drain Pin I Charge V CC=4V, VDrain=100V 450 550 750 µA Leakage current from Drain Pin ILeak_Drain VDS=500VDC 1 10 µA On-state resistance RON I D=10mA, TJ=20°C 10 13 Ω Minimum switching frequency f MIN At no load condition 120 Hz Internal Current Sense Current limit ILimit V FB=-0.5V 365 380 395 mA Leading-edge blanking tLEB 230 300 370 ns Feedback input (FB Pin) FB pin input current IFB V FB=4V, VCP=3V 12 16 20 μA Feedback threshold VFB 3.93 4 4.07 V DCM detect threshold VDCM 80 120 160 mV FB open-circuit threshold V FBOPEN -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 Pin) Cable compensation voltage V CP Full load 2 V Thermal Shutdown Thermal shutdown threshold 150 °C Thermal shutdown recovery threshold 120 °C

MP020-5 – OFFLINE, PRIMARY-SIDE REGULATOR WITH CC/CV CONTROL AND A 700V FET MP020-5 Rev. 1.05 www.MonolithicPower.com 4 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. TYPICAL CHARACTERISTICS VCCL(V) VCCH(V) Leakage Current vs. Junction Temperature Breakdown Voltage vs. Junction Temperature V CC OFF Threshold vs. Junction Temperature Feedback Threshold vs. Junction Temperature V CC ON Threshold vs. Junction Temperature FB Open Circuit Threshold vs. Junction Temperature FB OVP Threshold vs. Junction Temperature DCM Detect Threshold vs. Temperature Chart VFB_OPEN(V) VDCM(V) Charge Current vs. Junction Temperature 400 450 500 550 600 650 700 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 500 550 600 650 700 750 800 850 VBRDSS(V) 15.0 15.5 16.0 16.5 17.0 17.5 18.0 5.00 5.25 5.50 5.75 6.00 6.25 6.50 6.75 7.00 3.900 3.925 3.950 3.975 4.000 4.025 4.050 4.075 4.100 VFB(V) 0.100 0.105 0.110 0.115 0.120 0.125 0.130 -0.200 -0.180 -0.160 -0.140 -0.120 -0.100 -0.080 -0.060 -0.040 -0.020 0.000 5.000 5.250 5.500 5.750 6.000 6.250 6.500 6.750 7.000 VFB_OVP(V)

MP020-5 – OFFLINE, PRIMARY-SIDE REGULATOR WITH CC/CV CONTROL AND A 700V FET MP020-5 Rev. 1.05 www.MonolithicPower.com 5 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. TYPICAL CHARACTERISTICS (CONTINUED) OVP Sample Delay vs. Junction Temperature 2.0 2.5 3.0 3.5 4.0 4.5 5.0 -50 -25 0 25 50 75 100 125 On State Resistance vs. Junction Temperature -50 -25 0 25 50 75 100 125 Current ILimit vs. Junction Temperature 350 360 370 380 390 400 -50 -25 0 25 50 75 100 125 CURRENT ILIMIT(mA)

MP020-5 – OFFLINE, PRIMARY-SIDE REGULATOR WITH CC/CV CONTROL AND A 700V FET MP020-5 Rev. 1.05 www.MonolithicPower.com 6 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. TYPICAL PERFORMANCE CHARACTERISTICS Performance waveforms are tested on the evaluation board of the Design Example section. VIN = 230Vac, VOUT = 5V, IOUT=1A, L = 1.6mH, TA = 25°C, unless otherwise noted. VOUT 2V/div. VDS 100V/div. VOUT 2V/div. VDS 100V/div. VCC 5V/div. VFB 2V/div. VDS 100V/div. VCC 5V/div. VOUT AC Coupled 50mV/div. VFB 2V/div. VDS 100V/div. VCC 10V/div. VFB 2V/div. VOUT 2V/div. VDS 100V/div. VCC 10V/div. VFB 2V/div. VOUT 2V/div. VDS 100V/div. VFB 1V/div. VDS 100V/div. Input Power Startup Input Power Shut Down OCkP Entry OCkP Recovery OVP Entry OVP Recovery Output Voltage Ripple VOUT 1V/div. IOUT 200mA/div. Load Transient Normal Operation

MP020-5 – OFFLINE, PRIMARY-SIDE REGULATOR WITH CC/CV CONTROL AND A 700V FET MP020-5 Rev. 1.05 www.MonolithicPower.com 7 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. TYPICAL PERFORMANCE CHARACTERISTICS (CONTINUED) Performance waveforms are tested on the evaluation board of the Design Example section. VIN = 230VAC, VOUT = 5V, IOUT=1A, L = 1.6mH, TA = 25°C, unless otherwise noted. MP020-5 CV/CC Characteristic 25℃ CV/CC Io(A) Vo(V) 265Vac 230Vac 115Vac 85Vac

MP020-5 – OFFLINE, PRIMARY-SIDE REGULATOR WITH CC/CV CONTROL AND A 700V FET MP020-5 Rev. 1.05 www.MonolithicPower.com 8 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. PIN FUNCTIONS SOIC8-7A Pin # Name Description

1 VCC

Supply. IC begins functioning when V CC charges to V CCH through an internal high-voltage current source. When V CC falls below V CCL, the internal high-voltage current source turns on to charge VCC. Connect 0.1µF decoupling ceramic capacitor for most applications. 3 FB Feedback. Provides the output reference voltage and detects falling voltage edges to determine the operation mode (CV mode and CC mode). 4 CP Output Cable Compensation. Connect a 1 μF ceramic capacitor as a low pass filter. The upper resistor of resistor divider connected to FB adjusts the compensation voltage. 2, 5, 6 GND Ground. 8 Drain Internal MOSFET Drain. Input for the high-voltage start-up current source.

MP020-5 – OFFLINE, PRIMARY-SIDE REGULATOR WITH CC/CV CONTROL AND A 700V FET MP020-5 Rev. 1.05 www.MonolithicPower.com 9 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. FUNCTIONAL 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

MP020-5 – OFFLINE, PRIMARY-SIDE REGULATOR WITH CC/CV CONTROL AND A 700V FET MP020-5 Rev. 1.05 www.MonolithicPower.com 12 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. OVP & OCkP The MP020-5 includes over-voltage protection (OVP) and open-circuit protection (OCkP). If the voltage at the FB pin exceeds 6.35V for 3.5µs, or the FB input’s 0.15V falling edge cannot be monitored, the MP020-5 immediately shuts off the driving signals and enters hiccup mode. The MP020-5 resumes normal operation when the fault has been removed. Thermal Shutdown (TSD) When the temperature of the IC exceeds 150°C, over-temperature protection (OTP) triggers and the IC enters the auto recovery mode. When the temperature falls below 120°C, the IC will recover. Output Cable Compensation In order to compensate the secondary side cable voltage drop for a more precise output voltage, the MP020-5 has an internal output cable compensation circuit as shown in Figure 8. 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 (V CP) that changes as the load current varies. VCP can be converted to a current signal drawn from the FB pin. The voltage drop on R UP helps the output cable compensation. When the system operates in maximum load, the CP pin voltage reaches a maximum of 2V. CP DS + - VCP VoFB RUP RDOWN VFCP Figure 8: Output Cable Compensator The equation below determines the compensation voltage: P_A U SS FCP UP 3

5.6 D NV2 R360 10 N

Where:

  • V FCP is the secondary-side compensation voltage drop,
  • D S is the secondary-diode duty cycle in CC mode (0.4 for the MP020-5),
  • R UP is the upper resistor of resistor divider,
  • N S is the number of turns for the secondary- side transformer windings, and
  • N P_AU is the number of transformer auxiliary winding turns.

MP020-5 – OFFLINE, PRIMARY-SIDE REGULATOR WITH CC/CV CONTROL AND A 700V FET MP020-5 Rev. 1.05 www.MonolithicPower.com 16 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. EMI (Output GND connect to earth) without Y cap. The Y cap will bring about the leakage current which is prohibited in some cell phone charger application. Figure 15 could illustrate how the Common Noise of the secondary side diode be restrained. The secondary side winding split to two separate windings N SEC1 and N SEC2 which have same turns and approximate parasitic capacitor C SP1,and C SP2 but their ‘hot spot’ is opposite as the Point 9 and Point 10 in Figure 15, so the common mode noise current produced at secondary side windings can be counteracted each other. The transformer structure could be simple if the application does not need to pass the 3 wire Conducted EMI or could use the Y cap. Figure 16 shows the schematic with the simple transformer structure.

MP020-5 – OFFLINE, PRIMARY-SIDE REGULATOR WITH CC/CV CONTROL AND A 700V FET MP020-5 Rev. 1.05 www.MonolithicPower.com 18 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. VCC 1 GND 2 FB 3 CP 4GND5 GND6 Drain8 MP 020-5GS/SOIC8-7A FR107 PGND AGND PGND PGND PGND Vo AGND LN 22uF/50V NP:NP_AU:NS=127 :18: 8 LP=1.6mH NP NS NP_AU FR1 1.2nF/ 100VC7 CR 1 1000 uH/0.25AL1

10 K/ 0805R1

27K/1% 10/1W 200 V/0.2A

1000 V/1 A

600V/0.5A 5V/ 1A 85VAC~265VAC B560C/60 V/ 5AD3

150 K/1206

4 .7uF/400V 1uF/10V C10 1nF/ 630 V/1206 330uF/10V 330uF/10V 100nF/50V 1u F/ 2 5V 13 .3K/1% 2 .2/ 1206 2.2K 2.2nF/250V CY1 Figure 16: Typical Application, 5V/1A with Simple Transformer Structure

MP020-5 – OFFLINE, PRIMARY-SIDE REGULATOR WITH CC/CV CONTROL AND A 700V FET MP020-5 Rev. 1.05 www.MonolithicPower.com 19 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 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 3.5 us

MP020-5 – OFFLINE, PRIMARY-SIDE REGULATOR WITH CC/CV CONTROL AND A 700V FET 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. MP020-5 Rev. 1.05 www.MonolithicPower.com 20 1/23/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved.

PACKAGE INFORMATION

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 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