STR-W6253MD

STR-W6253MD 60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators Features and Benefits Description ▪ Overcurrent protection (OCP) with AC input voltage compensation function; no additional peripheral circuits required—minimizes dependency of OCP on ac input ▪ Overload protection (OLP) with integrated timer reduces power stress (temperature rise) at overload condition, requires no peripheral components ▪ Avalanche-guaranteed MOSFET improves device capability of withstanding excess surge voltage, providing a simple surge absorber circuit without breakdown voltage derating ▪ Start-up circuit eliminates the need for a start-up resistor, and helps to reduce input power consumption The STR-W6200D series are current-mode PWM ICs that incorporate controller chips. These devices are manufactured using a proprietary high-voltage BCD process, and avalancheguaranteed MOSFETs. These elements allow power supply systems designs that are highly reliable and simple, with fewer peripheral components. These ICs also provide Auto-Burst mode operation, which lowers input power requirements at light loads, and improves efficiency over the entire load range and universal-input range. Applicatons include: ▪ ▪ ▪ ▪ Continued on the next page… Package: TO-220 TV set top box LCD PC monitor, LCD TV Printer, scanner General consumer, PC, and industrial applications requiring SMPS power supply with standby mode Not to scale Functional Block Diagram STARTUP VCC D/ST 7.1 V UVLO REG VREG 28.5 V OVP RST R SQ 15.5 V/ 8.9 V 7.1 V ELP TSD =1.6 mA RQ DMAX 75% PWM OSC I startup S DRV SQ R S2 Frequency Modulation FM/ELP Q OLP CK S1 tOLP = tFM ×32 R 12 V OCP Drain Peak Current Compensation 7.8 V 160 μA Feedback Control FB Slope Compensation 28103.54, Rev. 1 LEB S/OCP GND 60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators STR-W6253MD Features and Benefits (continued) ▪ Bias Assist function improves start-up performance by selfbiasing the VCC pin, and allows a use of a small value VCC capacitor, resulting in improved response to overvoltage conditions ▪ Very low current consumption in nonoperating (UVLO) state: ICC(off) = 5 μA (typical) at VCC = 13.9 V ▪ Slope compensation circuit stabilizes operation, preventing interference from subharmonics ▪ Leading Edge Blanking ▪ Various protections: • Overcurrent Protection (OCP), pulse-by-pulse sensing • Overload Protection (OLP), auto restart after certain duration • External Latch Protection (ELP), latched • Overvoltage Protection (OVP), latched • Thermal Shut Down (TSD), latched ▪ Externally-activated shut down protection (ELP) for emergency system shut down ▪ Auto-Burst Standby function (pin < 0.1 W at zero output load condition) ▪ TO-220 full-molded package with 6 pins Selection Guide Part Number Packing STRW6253MD 50 pieces per tube Pin-out Diagram Terminal List Table Number Name 1 D/ST 2 NC 3 S/OCP 4 Description Functions Drain/startup terminal MOSFET drain and input of start-up signal Clipped No connection Source/Overcurrent Protection terminal MOSFET source and input of overcurrent detection signal VCC Power supply terminal Input of power supply for control circuit 5 GND Ground terminal Ground 6 FB Feedback terminal Input of constant voltage control signal 7 FM/ELP Frequency jittering/External Latch Protection terminal Control input for frequency jittering control and External Latch Protection 1 2 3 4 5 6 7 All performance characteristics given are typical values for circuit or system baseline design only and are at the nominal operating voltage and an ambient temperature, TA, of 25°C, unless otherwise stated. Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com 2 60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators STR-W6253MD ABSOLUTE MAXIMUM RATINGS at TA = 25°C Symbol Terminal Rating Unit Drain Current1 Characteristic IDpeak 1-3 Single Pulse Note 10 A Maximum Switching Current2 IDMAX 1-3 TA = –20°C to 125°C 10 A mJ EAS 1-3 Single Pulse 86 ILpeak 1-3 VDD = 99 V, L = 20 mH 2.7 A S/OCP Terminal Voltage VOCP 3-5 –6 to 6 V FM/ELP Terminal Voltage VFM 7-5 –0.3 to 12 V FM/ELP Terminal Inflow Current IFM 7-5 3 mA FB Terminal Voltage VFB 6-5 –0.3 to 9 V Controller (MIC) Input Voltage VCC 4-5 0 to 32 V MOSFET Power Dissipation4 PD1 1-3 With infinite heatsink 27.5 W Without heatsink 1.3 W Controller (MIC) Power Dissipation PD2 4-5 Operating Internal Frame Temperature TF – Operating Ambient Temperature Top – –20 to 115 °C Storage Temperature Tstg – –40 to 125 °C Channel Junction Temperature TJ – 150 °C Single Pulse Avalanche Energy3 Refer to TOP 0.8 W –20 to 115 °C 1Refer to figure 1 2I DMAX is the drain current on the D/ST pin determined by the drive voltage of the IC and the threshold voltage, Vth, of the MOSFET 3Refer to figure 3 4Refer to figure 5 Figure 1 – MOSFET Safe Operating Area Derating Curve Figure 2 – MOSFET Safe Operating Area Drain Current versus Voltage at TA = 25°C, Single Pulse 100.00 80 Drain Current, ID (A) 10.00 60 40 0. 1 it lim n) nt S(o re R D r Cu e to du 1.00 m s s 1m Safe Operating Area Temperature Derating Coefficient (%) 100 0.10 20 Refer to figure 1 for MOSFET SOA temperature derating coefficient 0.01 0 0 20 40 60 80 Temperature, TF (°C) 100 120 1 10 100 1000 Drain-to-Source Voltage, VDS (V) Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com 3 60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators STR-W6253MD Figure 3 – MOSFET Avalanche Energy Derating Curve Figure 4 – Transient Thermal Resistance 10.00 Transient Thermal Resistance, RQJC (°C/W) 80 60 40 20 1.00 0.10 0.01 0 25 50 75 100 125 150 1μ 10μ 100μ 1m 10m 100m Time, t (s) Channel Junction Temperature, TJ (°C) Figure 5 – MOSFET Power Dissipation versus Temperature 30 25 Power Dissipation, PD1 (W) EAS Temperature Derating Coefficient (%) 100 With infinite heatsink PD1 = 27.5 W at TA ≤ 25°C 20 15 10 5 Without heatsink PD1 = 1.3 W at TA ≤ 25°C 0 0 20 40 60 80 100 120 140 160 Ambient Temperature, TA (°C) Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com 4 60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators STR-W6253MD ELECTRICAL CHARACTERISTICS valid at VCC = 18 V, TA = 25°C, unless otherwise specified Characteristic Symbol Terminal Test Conditions Min. Typ. Max Units Power Supply Start-up Operation Operation Start Voltage VCC(ON) 4-5 (VCC voltage at which operation starts) Measurement circuit 1, VCC = 0 through 13.9 to 17.1 V 13.9 15.5 17.1 V Operation Stop Voltage VCC(OFF) 4-5 (VCC voltage at which operation stops) Measurement circuit 1, VCC = 17.1 through 9.8 to 8.0 V 8.0 8.9 9.8 V ICC(ON) 4-5 (Inflow current into VCC terminal in oscillation) Measurement circuit 1 – 1.4 2.8 mA Circuit Current in Non-Oscillation ICC(STOP) 4-5 (Inflow current into VCC terminal at VFB = 0 V) Measurement circuit 1 – 0.8 1.3 mA Circuit Current in Non-Operation ICC(OFF) 4-5 (Inflow current into VCC terminal prior to oscillation) Measurement circuit 1, VCC = 13.8 – 5 20 μA Start-up Current Istartup 4-5 (Inflow current into D/ST terminal) Measurement circuit 7, VCC = 0, D/ST = 450 V –0.9 –1.6 –2.3 mA Bias Assist Voltage VBIAS 4-5 (VCC voltage at which Istartup starts, and IstartupBias begins) Measurement circuit 7, VCC = 17.1 through 13.6 to 16.8 V 13.6 15.2 16.8 V FM/ELP High Threshold Voltage VFM(H) 7-5 (FM/ELP terminal voltage at which IFM changes from –13 μA to 13 μA) Measurement circuit 2 4.0 4.5 5.0 V FM/ELP Low Threshold Voltage VFM(L) 7-5 (FM/ELP terminal voltage at which IFM changes from 13 μA to –13 μA) Measurement circuit 2 2.4 2.8 3.2 V FM/ELP Voltage Difference ∆VFM 7-5 (VFM(H) – VFM(L)) Measurement circuit 2 1.4 1.7 1.8 V –17.4 –13 –8.6 μA Circuit Current in Operation Operating Characteristics FM/ELP Outflow Current1 IFMsrc 7-5 (FM/ELP terminal outflow current at VFM = VFM(L)) Measurement circuit 2 FM/ELP Inflow Current1 IFMsink 7-5 (FM/ELP terminal inflow current at VFM = VFM(H)) Measurement circuit 2 8.6 13 17.4 μA Average Switching Frequency fOSC(av) 1-5 (D/ST terminal average oscillation frequency) Measurement circuit 2 60 67 74 kHz ∆f 1-5 fOSC (peak-to-peak) Measurement circuit 2 4.8 6.9 9 kHz DMAX 1-5 (Maximum width of the low portion of the D/ST terminal waveform) Measurement circuit 2 71 75 79 % IFB(MAX) 6-5 (FB terminal outflow current at VFB = 0 V) Measurement circuit 3 –220 –160 –100 μA Standby Operation Start-up Threshold Voltage VSTBY 6-5 Set VFM = 0 V and decrease VFB (VSTBY is the FB terminal voltage level at which D/ST changes from low to high) Measurement circuit 3 0.99 1.10 1.21 V Slope Compensation Start-up Duty Cycle DSLP 6-5 DSLP = (t3 / t4) × 100 (see figure for measurement circuit 4 for values of t) Measurement circuit 4 – 27 – % Slope Compensation Rate SLP 6-5 SLP = 0.02 / (t2 – t1) (see figure for measurement circuit 4 for values of t) Measurement circuit 4 –22 –17 –12 mV/μs Frequency Jitter Deviation Maximum Duty Cycle (On-Duty) Maximum Feedback Current1 Continued on next page… Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com 5 60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators STR-W6253MD ELECTRICAL CHARACTERISTICS, continued, valid at VCC = 18 V, TA = 25°C, unless otherwise specified Characteristic Symbol Terminal Test Conditions Min. Typ. Max Units Set VFM = 0 V and increase VOCP. (VOCP1 is the S/OCP terminal voltage level at which D/ST changes from low to high) Measurement circuit 5 0.71 0.78 0.86 V Protection Operation OCP Threshold Voltage at Zero Duty Cycle (0% On-Duty) VOCP1 3-5 DPC – DPC = –0.75× SLP / fOSC(av) 1.5 1.9 2.3 mV/ DC% OCP Threshold Voltage After Compensation VOCP2 3-5 VOCP2 = DPC × DMAX + VOCP1 0.82 0.93 1.04 V Leading Edge Blanking Time tblank 1-5 (The low portion of the D/ST terminal waveform at VOCP = 2 V) Measurement circuit 5 280 400 520 ns OLP Delay Time2 tOLP 1-5 (Time between setting FB terminal open and when oscillation stops) Measurement circuit 6 – 400 – ms Circuit Current in OLP-Operation ICC (OLP) 4-5 (Inflow current into VCC terminal after OLP operation) Measurement circuit 6 – 1.2 1.9 mA OVP Protection Voltage VCC(OVP) 4-5 Set VFM = 0 V and increase VCC (VCC terminal voltage at which the voltage of D/ST terminal is switched from low to high) Measurement circuit 1, VCC = 18.0 V through 27 to 30 V 27 28.5 30 V Latch Circuit Sustaining Current3 ICC(La.H) 4-5 (Inflow current into VCC terminal after OVP operation) Measurement circuit 1, VCC = 8 V – 140 220 μA VCC(La.OFF) 4-5 (VCC voltage at which ICC is dropped below 20 μA by decreasing VCC after OVP operation) VCC = 31.0 V through 7.8 to 6.4 V 6.4 7.1 7.8 V ELP Threshold Voltage VELP 7-5 (FM/ELP terminal voltage at which the oscillation of the D/ST terminal waveform is stopped by increasing VFM) Measurement circuit 2 6.4 7.1 7.8 V Inflow Current at External Latch Protection IELP 7-5 – 55 100 μA TJTSD – 135 – – °C Drain-to-Source Breakdown Voltage VDSS 1-3 ID = 300 μA, Measurement circuit 8 650 – – V Drain Leakage Current IDSS 1-3 VDS = 650 V, VCC = 13 V, Measurement circuit 7 – – 300 μA ON-Resistance RDS(ON) 1-3 ID = 1.2 A, VFM = 0 V Measurement circuit 10 – – 1.9 Ω Switching Time tr 1-3 Measurement circuit 9 – – 400 ns Thermal Resistance RθJ-F – Measured between junction and internal frame – – 1.75 °C/W Single Pulse Avalanche Energy EAS – Measurement circuit 11 – – – – Drain Peak Current Compensation Coefficient Latch Circuit Release Voltage3 Thermal Shutdown Operating Temperature Power MOSFET Characteristics 1Input and output current polarity at the device pin; plus(+) represents sink and minus(–) represents source. reference value when applying 47 nF between the FM/ELP terminal and GND. 3The latch circuit means a circuit operated ELP, OVP, TSD, and OLP. 2The Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com 6 60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators STR-W6253MD Measurement Circuit 1 V CC(ON) 13.8V STR-W6200D D/ST 1 S/OCP VCC GND 3 4 5 FB 6 FM/ ELP V CC 7 V FM 0V V FB 0V V CC(OVP) 18V 5V A ICC V DD 10V + 1μF V FB V CC 8V V CC(OFF) 3.65V V CCc(La.OFF) V OFF(FM) 0V 2V VD 100Ω 32V VD V FM ICC ICC(OFF) ICC(STOP) ICC(La.H) ICC(ON) Measurement Circuit 2 18V V CC 5V V FB STR-W6200D D/ST 1 S/OCP VCC GND 3 4 5 FB 6 FM/ ELP VD A + 100Ω 18V V DD 10V 0V 0V V FM V FML V FB V FM 2.8Vtyp Isrc(FM) IFM 0μA V FML+(V FMH -V FML)/2 IELP ࡮Δf =f osc(Hi)-f osc(Lo) ࡮Dmax= t2/ t1х100 Isnk(FM) 1μF V CC V ELP 4.5Vtyp V FMH 7 IFM 5V t2 VD f osc(Hi) f osc(Lo) f osc(av) t1 Measurement Circuit 3 18V V CC 5V V FM STR-W6200D D/ST 1 S/OCP VCC GND 3 4 5 6 FM/ ELP 2V V FB 7 V STBY 0V IFB VD + 100Ω 18V V DD 10V FB 0V V CC VD A 1μF V FM V FB I FB IFB(MAX) Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com 7 60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators STR-W6253MD Measurement Circuit 4 18V V CC 5V 3.65V V FM STR-W6200D D/ST 1 VD 100Ω S/OCP VCC GND 3 4 5 FB 6 V FB + V DD 10V V FB 7 V OCP 18V FM/ ELP 1μF V FM 4V V1 Internal feedback signal 0.68V V1-0.02V V1-0.04V V OCP t4 4V V CC VD ࡮DSLP= t3 / t4 ˜100 ࡮SLP = 0.02 / (t2-t1) t1 t2 t3 t5(≈tblank) Measurement Circuit 5 18V V CC 5V V FM STR-W6200D D/ST 1 VD 100ǡ S/OCP VCC GND 3 4 5 FB 6 FM/ ELP 7 3.65V 0V 2V V OCP1 V OCP 0V V OCP tblank + 18V V DD 20V 1μF V FM V CC VD V D(Lo) VOCP2 = (–0.75 × SLP / fOSC(av)) × DMAX + VOCP1 Measurement Circuit 6 18 V V CC STR-W6200D D/ST 1 S/OCP VCC GND 3 VD 100Ω 4 5 ICC A 6 FM/ ELP + SW V FM 7 t FM SW ONψOFF V FB 1μF V DD 10V FB 7.8 V typ V FB V FM 47nF VD V CC 18V ICC(OLP) ICC t OLP(= t FM˜32) Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com 8 60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators STR-W6253MD Measurement Circuit 7 650V 400V V DD 18V STR-W6200D D/ST 1 S/OCP VCC GND 3 ID 4 ICC A 5 FB 6 V CC FM/ ELP 13V 0V V FM 7 V BIAS 5V 0V A ID + V DD V CC IDSS V FM ICC 1μF ISTARTUP Measurement Circuit 8 STR-W6200D D/ST 1 S/OCP VCC GND 3 4 5 FB 6 FM/ ELP 7 Measurement Circuit 9 STR-W6200D D/ST S/OCP 1 VD 3 VCC GND 4 5 FB 6 FM/ ELP VD 10V 7 90% VD ID V + 300 μ A 18V V FM 1μF 47nF V CC 100Ω + 18V V DD 10V 10% V FM 1μF 47nF V CC tf Measurement Circuit 10 18V V CC STR-W6200D D/ST 1 S/OCP VCC GND 3 4 5 FB 6 FM/ ELP 7 VD V ID 0.6A 5V V FM 0V + 18V V CC 1μF V FM VD V D(Lo) RDS(ON) =V D(Lo) / 1.2 Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com 9 60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators STR-W6253MD Measurement Circuit 11 Vcc STR-W6200D D/ST S/OCP L 1 3 VCC GND 4 V DD 5 FB 6 FM/ ELP 18V 8V V GS 7 V DSpeak + V DS 18V V GS IL 1μF V DD V DS V CC t TYPICAL APPLICATION CIRCUIT O UT V IN ( ac) 1 4 D/ST VCC S T R -W 6200D FM / S/O C P ELP 3 7 GND 5 FB 6 G ND Option Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com 10 60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators STR-W6253MD PACKAGE DIMENSIONS, TO-220 Branding XXXXXXXX XXXXXXXX 2.6 ±0.1 ×R (2 Terminal dimension at case surface +0.2 (5.4) 0.65 –0.1 10.4 ±0.5 2.8 5.0 ±0.5 1) 0.74 ±0.15 Ø3.2 ±0.2 16.9 ±0.3 2.8 ±0.2 7.9 ±0.2 Gate Burr 4.2 ±0.2 4 ±0.2 10.0 ±0.2 +0.2 View A 6×P1.27 ±0.15 = 7.62 ±0.15 Terminal dimensions at case surface 0.45 –0.1 View B 5.08 ±0.6 Terminal dimension at lead tips 0.5 MAX 1 2 3 4 5 6 7 Terminal core material: Cu Terminal treatment: Ni plating and solder dip Leadform: 2003 Weight (approximate): 2.3 g Dimensions in millimeters Deflection at pin bend View A 0.5 MAX Deflection at pin tip View B Drawing for reference only Branding codes (exact appearance at manufacturer discretion): 1st line, type: W6253DM 2nd line, lot: YMDD R Where: Y is the last digit of the year of manufacture M is the month (1 to 9, O, N, D) DD is the 2-digit date R is the manufacturer registration symbol Leadframe plating Pb-free. Device composition complies with the RoHS directive. Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com 11 60 W-Universal Input/90 W-230 Vac Input PWM Switching Regulators STR-W6253MD PACKING SPECIFICATIONS Minimum packing option: Tube FM-205 E 4.8 +0.4 0 1.4 5.1 9 × R0.6 35.0 (15.4) 9.5–0.1 +0.3 8.9 Shipping Tube Dimensions: Wall thickness: 0.6±0.3 mm Wall warp: