High-Accuracy, High-Side, Adjustable Current-Limit Power ...

1 2018 Microchip Technology 1 MIC2039 Features 5% Current-Limit accuracy Input Supply Range from to Low Quiescent Current: 100 A Typical (Switch ON) 75m Typical RDS(ON) at 5V to Adjustable Output Current Kickstart: Momentary Secondary Current-Limit Threshold (120 ms period) Soft-Start Functionality Undervoltage Lockout (UVLO) Fast 10 s Short-Circuit Response Time (Non-Kickstart Options) Fault Status Output Flag Logic Controlled Enable (Active-High, Active-Low) Thermal Shutdown Pin Compatible with MIC2009/MIC2019 6-Pin 2 mm x 2 mm Thin DFN and 6-Pin SOT-23 Packages Junction Temperature Range from 40 C to +125 CApplications USB Peripherals and USB DTV/STB Notebooks and Consumer Electronics General Purpose Power DistributionGeneral DescriptionThe MIC2039 is a high-side MOSFET powerdistribution switch that provides increased systemreliability by using 5% Current-Limit MIC2039 has an operating input voltage rangefrom to , is internally current-limited.

2 And hasthermal shutdown to protect the device and MIC2039 is offered with either active-high oractive-low logic level enable input controls. It has anopen drain fault status output flag with a built-in 32 msdelay that asserts low during overcurrent orthermal-shutdown MIC2039 features an Adjustable output currentlimit that is resistor-programmable from to MIC2039 also offers a unique, kickstart featurethat allows momentary high-current surges up to thesecondary current limit (ILIMIT_2nd) during startup orwhile operating in steady-state. This is useful forcharging loads with high inrush currents, such ascapacitors.

3 After an overcurrent condition isestablished, these switches enter into a constantcurrent-limit mode unless the die temperature exceedsthe thermal-shutdown specification. The MIC2039 is available in 6-pin SOT-23 and 6-pin2 mm x 2 mm thin DFN packages. The MIC2039 hasan operating junction temperature range of 40 C to+125 TypesNote 1:Thin DFN = Pin 1 (M6)MIC20392x2 TDFN (MT) (Note 1)VINFAULT/ILIMITVOUTGND456123 ENVINFAULT/ILIMITVOUTGNDEPEN612354 High- accuracy , High-Side, Adjustable Current-Limit Power SwitchMIC2039DS20005540A-page 2 2018 Microchip Technology Application CircuitFunctional Block DiagramMIC2039 SOT-23-6 VOUTGNDVINILIMITFAULT/C147 R2287 THERMALSENSORENGNDVOUTVINCONTROLREFERENC ECURRENT LIMITDELAYUVLOILIMITSENSE FETPOWER FETFAULT / 2018 Microchip Technology CHARACTERISTICSA bsolute Maximum Ratings VIN to GND.

4 To +6 VVOUT to to VINVILIMIT to to VIN + to to VINVFAULT/ to GND .. to VIN + Current (IFAULT/) .. 25 mAMaximum Power Dissipation (PD) .. Internally LimitedESD Rating (HBM) (Note 1) .. 3 kVESD Rating (MM) (Note 1) .. 300 VOperating Ratings Supply Voltage (VIN) .. + to + to VINVFAULT/.. to + , to VIN Notice: Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the is a stress rating only and functional operation of the device at those or any other conditions above those indicatedin the operational sections of this specification is not intended. Exposure to maximum rating conditions for extendedperiods may affect device reliability.

5 Notice: The device is not guaranteed to function outside its operating 1:Devices are ESD sensitive. Handling precautions are recommended. Human body model, k in serieswith 100 4 2018 Microchip Technology 1-1:ELECTRICAL CHARACTERISTICSE lectrical Characteristics: VIN = VEN = 5V, CIN = 1 F; TJ = +25 C, unless noted. Bold values indicate 40 C TJ +125 C. (Note 1). Supply InputVINI nput Voltage VUVLOI nput Supply Undervoltage Lockout fallingVUVLOHYSI nput Supply Undervoltage Lockout Threshold Hysteresis 100 mV VIN rising or VIN fallingIDDS upply Current ASwitch OFF; Active-High Enable (A): VEN = 0V, VIN = 5V, IOUT = 0 ASwitch OFF; Active-Low Enable (B): VEN = , VIN = 5V, IOUT = 0A 100300 ASwitch ON; Active-High Enable (A): VEN = , VIN = 5V, IOUT = 0 ASwitch ON.

6 Active-Low Enable (B): VEN = 0V, VIN = 5V, IOUT = 0 APower MOSFETRDS(ON)Switch On-Resistance 100177m VIN = , IOUT = 350 mA 85145 VIN = , IOUT = 350 mA 75125 VIN = 5V, IOUT = 350 mAILKGO utput Leakage ASwitch OFF, VOUT = 0 VCurrent LimitILIMITC urrent Limit (Resistor Values are Standard Values) = 115 , VIN = 5V, VOUT = VINRLIMIT = 115 , VIN = , VOUT = 0V = 145 , VIN = 5V, VOUT = = 287 , VIN = 5V, VOUT = = 576 , VIN = 5V, VOUT = = k , VIN = 5V, VOUT = VINILIMIT_2 NDSecondary Current Limit (Kickstart parts only) = 0 VNote 1:Specification for packaged product :See Timing :For dynamic current loads faster than typically 30 mA/ms. Slower current loads will delay the deactivation of VOUT and the current limitation, allowing FAULT/ to be asserted before these.

7 2018 Microchip Technology 5 MIC2039I/OVENE nable Voltage Logic-HighIENE nable Input Current 1 A0V VEN 5 VRFAULT/FAULT/ Output Resistance 25 IOUT = 10 mAIFAULT/_OFFFAULT/ Off Current 10 AVFAULT/ = VINT hermal ProtectionTSDT hermal Shutdown Threshold 157 CTJ risingTSDHYST hermal Shutdown Hysteresis 15 C Timing Specifications (AC Parameters)tRISEO utput Turn-On Rise Time (Note 2) 700 sRLOAD = 10 ; COUT = 1 FtFALLO utput Turn-Off Fall Time (Note 2) 32 sVEN = OFF; RLOAD = 10 ; COUT = 1 FtON_DLYO utput Turn-On Delay (Note 2) 700 s RLOAD = 10 ; COUT = 1 FtOFF_DLYO utput Turn-Off Delay (Note 2) 5 s RLOAD = 10 ; COUT = 1 FtSC_RESPS hort Circuit Response Time (Note 2, Note 3) 10 s VOUT = 0V (short-circuit)tFAULT/Overcurrent Fault Response Delay Time (Note 2, Note 3)163249msNon-kickstart Fault Response Delay During Kickstart (Note 2)64120200msKickstart parts 1-1:ELECTRICAL CHARACTERISTICS (CONTINUED)Electrical Characteristics: VIN = VEN = 5V, CIN = 1 F; TJ = +25 C, unless noted.

8 Bold values indicate 40 C TJ +125 C. (Note 1). 1:Specification for packaged product :See Timing :For dynamic current loads faster than typically 30 mA/ms. Slower current loads will delay the deactivation of VOUT and the current limitation, allowing FAULT/ to be asserted before 6 2018 Microchip Technology RangesJunction Operating Temperature RangeTJ 40 +125 CNote 1 Storage Temperature RangeTS 65 +150 C Lead Temperature +260 CSoldering, 10sPackage Thermal ResistancesThermal Resistance SOT-23-6 JA C/W Thermal Resistance 6-pin 2 mm x 2 mm Thin DFN JA 90 C/W Note 1:The maximum allowable Power dissipation is a function of ambient temperature, the maximum allowable junction temperature and the thermal resistance from junction to air ( , TA, TJ, JA).

9 Exceeding the maximum allowable Power dissipation will cause the device operating junction temperature to exceed the maximum +125 C rating. Sustained junction temperatures above +125 C can impact the device reliability. 2018 Microchip Technology PERFORMANCE CURVESFIGURE 2-1:Input Supply Current vs. Temperature. FIGURE 2-2:VIN OFF Current vs. 2-3:Undervoltage Lockout vs. 2-4:RDS(ON) vs. 2-5:RDS(ON) vs. 2-6:RDS(ON) vs. Output :The graphs and tables provided following this note are a statistical summary based on a limited number ofsamples and are provided for informational purposes only. The performance characteristics listed hereinare not tested or guaranteed. In some graphs or tables, the data presented may be outside the specifiedoperating range ( , outside specified Power supply range) and therefore outside the warranted 8 2018 Microchip Technology 2-7:FAULT/ Response Time vs.

10 2-8:FAULT/ Response Time vs. 2-9:FAULT/ Response Time vs. Output 2-10:Output Leakage Current vs. 2-11:VIN - VOUT vs. Output 2-12:Current Limit Set Resistor vs. Output Current. 2018 Microchip Technology 9 MIC2039 FIGURE 2-13:Soft-Start 2-14:Soft-Start 2-15:Enable 2-16:Enable 2-17:Turn-On Into 2-18:Turn-On Into Short (Kickstart).VIN = 5V ILOAD= 250mA ILIMIT = 1 ACOUT = 1 FTime (2ms/div)IIN(500mA/div)VIN(2V/div)VOUT(2 V/div)Time (4ms/div)VIN = 5V ILOAD= 250mA ILIMIT = 1 ACOUT = 1 FIIN(500mA/div)VIN(2V/div)VOUT(2V/div)Ti me (200 s/div)IIN(200mA/div)VEN(5V/div)VOUT(2V/d iv)VIN = 5V ILOAD= 250mA ILIMIT = 1 ACOUT = 1 F MIC2039 AYM6 Time (100 s/div)VIN = 5V ILOAD= 250mA ILIMIT = 1 ACOUT = 1 FIIN(100mA/div)VEN(5V/div)VOUT(2V/div)MI C2039 AYM6 Time (4ms/div)VIN = 5V ILOAD= Short Circuit ILIMIT = 1 ACOUT = 1 FIIN(500mA/div)VEN(5V/div)VOUT(500mV/div )VFAULT/(5V/div)Time (40ms/div)VIN = 5V ILOAD= Short CircuitIIN(1A/div)VOUT(500mV/div)VFAULT/ (5V/div)VEN(5V/div)