WS3222D-8/TR

WS3222D WS3222D Http//:www.willsemi.com Over-Voltage-Protection Load Switch with Adjustable OVLO threshold Descriptions The WS3222 is an Over-Voltage-Protection (OVP) load switch with adjustable OVLO threshold voltage. The device will switch off internal MOSFET to disconnect IN to OUT to protect load when any of input DFN2×2-8L (Bottom View) voltage over the threshold. When the OVLO input set below the external OVLO select voltage, the WS3222 automatically chooses the internal fixed OVLO threshold voltage. The over voltage protection threshold voltage can be adjusted with external resistor divider and the OVLO threshold voltage range is 4V~15V. The Over temperature protection (OTP) function monitors chip temperature to Pin configuration (Top view) protect the device. The WS3222 is available in DFN2×2-8L Package. Standard products are Pb-free and Halogen-free. Features  Maximum input voltage : 29V  Switch ON resistance : 45mΩ Typ.  Ultra fast OVP response time : 450ns Typ.  Adjust OVLO threshold voltage : 4V~15V Marking D= Package code b = Voltage code Y = Year code W = Week code Applications  Mobile Handsets and Tablets  Portable Media Players  STB, OTT  Car DVR, Car Media System  Peripherals Will Semiconductor Ltd. Order information Device WS3222D-8/TR 1 Package Shipping DFN2×2-8L 3000/Reel&Tape Jul, 2019 - Rev.1.3 WS3222D Function Block Diagram Typical Applications Note1: R1 and R2 are only required for External OVP, otherwise connect OVLO to GND Note2: Recommend 10K≤R2≤50K；add unidirection TVS close to VIN Pin Descriptions Pin No. Symbol 1, 2, 3 OUT Output 4 GND Ground 5 OVLO OVLO Threshold set pin. Connect a resistor-divider to set different OVLO threshold, VOVLO=1.2x(1+R1/R2) as shown typical application diagram. 6, 7, 8 IN 9 EXPOSED PAD Will Semiconductor Ltd. Descriptions Input and Device Power Supply. Connected to GND. 2 Jul, 2019 - Rev.1.3 WS3222D Absolute Maximum Ratings Parameter Symbol Value Unit VIN -0.3 ~ 29 V Output voltage (OUT pin) VOUT -0.3 ~ 22 V Input voltage (OVLO pin) VOVLO -0.3~17 V IOUT 3 A 0.5 W Input voltage (IN pin) MAX Continuous Output current Power dissipation * * 1 3 PD Power dissipation * * 2 3 Thermal resistance *1 Thermal resistance * RθJA 2 0.3 W 250 oC/W 416 o C/W Junction temperature TJ 150 o Lead temperature(10s) TL 260 o Tstg -55 ~ 150 o HBM ±4000 V MM ±200 V Storage temperature ESD Ratings C C C Note:Thesearestressratingsonly.Stressesexceedingtherangespecifiedunder“AbsoluteMaximumRatings” maycausesubstantialdamagetothedevice.Functionaloperationofthisdeviceatotherconditionsbeyondthose listedinthespecificationisnotimpliedandprolongedexposuretoextremeconditionsmayaffectdevicereliability. *1: Surface mounted on FR-4 Board using 1 square inch pad size, dual side, 1oz copper *2:Surface mounted on FR-4 board using minimum pad size,1oz copper *3: Power dissipation is calculated by PD = (VIN-VOUT) x IOUT Recommend Operating Conditions (Ta=25oC, unless otherwise noted) Parameter Symbol Value Unit Input voltage VIN 2.5 ~ 28 V Ambient operating temperature TA -40 ~ 85 oC Will Semiconductor Ltd. 3 Jul, 2019 - Rev.1.3 WS3222D Electronics Characteristics(VIN=5V, CIN=1uF, COUT=4.7uF, Ta=25oC, unless otherwise noted) Parameter Symbol Conditions Input voltage range VIN Quiescent current IQ NO Load ON resistance RON VIN=5V, IOUT=1A OVP response time TOVP VIN rising, CIN=CL=0pF OVLO reference voltage Min. Typ. 2.5 VOVLO_TH 110 *1 1.17 VOVLO_HYS*2 Max. Units 28 V 200 uA 45 mΩ 450 ns 1.2 1.23 35 VIN rising V mV Adjust OVP voltage range VOVLO_RANGE 4 15 V External OVLO select Threshold VOVLO_SELECT 0.2 0.3 V UVLO threshold voltage VUVLO VIN rising 2.25 2.45 V UVLO hysteresis voltage VUVLO_HYS VIN falling 0.25 V Turn ON time TON VIN>UVLO to VOUT=VIN*90% CL=0 16 ms Output discharge resistance RDCHG VIN=5V 220 Ω OTP threshold temperature TOTP VIN=5V 150 o OTP hysteresis temperature THYS VIN=5V 20 C oC *1: Guaranteed by design *2: If connect a resistor-divider to set different OVLO threshold, then VOVLO_HYS = 35 x (1+R1/R2) mV Will Semiconductor Ltd. 4 Jul, 2019 - Rev.1.3 WS3222D Typical Characteristics (TA=25°C, unless otherwise noted) ON Resistance vs. Load Current ON Resistance vs. Temperature OVLO Threshold vs. Temperature OVLO Reference Threshold vs. Temperature Output Voltage vs. Output Current Will Semiconductor Ltd. Output Voltage vs. Output Current 5 Jul, 2019 - Rev.1.3 WS3222D UVLO vs. Temperature Power-ON Quiescent Current vs. Temperature Power-OFF VIN=5V,IOUT=3A,Cout=1uf VIN=5V,IOUT=3A,Cout=1uf Power-ON VIN=14.6V, IOUT=2A,Cout=1uf Will Semiconductor Ltd. Power-OFF VIN=14.6V,IOUT=2A,Cout=1uf 6 Jul, 2019 - Rev.1.3 WS3222D OVP and OVP Recovery(OVP=6.8V, Iout=0A) OVP and OVP Recovery(OVP=6.8V, Iout=2.5A) OVP and OVP Recovery(OVP=16V, Iout=0A) Will Semiconductor Ltd. 7 OVP and OVP Recovery(OVP=16V, Iout=2A) Jul, 2019 - Rev.1.3 WS3222D PACKAGE OUTLINE DIMENSIONS DFN2x2-8L Symbol A Dimensions in Millimeters Min. Typ. Max. 0.52 0.55 0.58 A3 0.13 Ref. L 0.2 0.25 0.30 D 1.90 2.00 2.10 E 1.90 2.00 2.10 D1 0.90 1.00 1.10 E1 1.60 1.70 1.80 e b Will Semiconductor Ltd. 0.50 Typ. 0.25 0.30 8 0.35 Jul, 2019 - Rev.1.3 WS3222D TAPE AND REEL INFORMATION Reel Dimensions RD Reel Dimensions Tape Dimensions W P1 Quadrant Assignments For PIN1 Orientation In Tape Q1 Q2 Q1 Q2 Q3 Q4 Q3 Q4 User Direction of Feed RD Reel Dimension 7inch 13inch W Overall width of the carrier tape 8mm 12mm P1 Pitch between successive cavity centers 2mm 4mm 8mm Pin1 Pin1 Quadrant Q1 Q2 Q3 Will Semiconductor Ltd. 9 Q4 Jul, 2019 - Rev.1.3