MCP1650/51/52/53 - Microchip Technology

1 2004-2013 Microchip Technology 1 MCP1650/51/52/53 Features Output Power Capability Over 5 Watts Output Voltage Capability From to Over 100V 750 kHz Gated Oscillator Switching Frequency Adaptable Duty Cycle for Battery or Wide-Input, Voltage-Range Applications Input Voltage Range: to Capable of SEPIC and Flyback Topologies Shutdown Control with IQ < A (Typical) Low Operating Quiescent Current: IQ = 120 A Voltage Feedback Tolerance ( , Typical) Popular MSOP-8 Package Peak Current Limit Feature Two Undervoltage Lockout (UVLO) Options:- or Operating Temperature Range: -40 C to +125 CApplications High-Power Boost Applications High-Voltage Bias Supplies White LED Drivers and Flashlights Local to Supplies Local to 12V Supplies Local to 12V Supplies LCD Bias SupplyDescriptionThe MCP1650/51/52/53 is a 750 kHz gated oscillatorboost controller packaged in an 8 or 10-pin MSOP package.

2 Developed for high-power, portable applica-tions, the gated oscillator controller can deliver 5 wattsof power to the load while consuming only 120 A ofquiescent current at no load. The mcp1650 /51/52/53can operate over a wide input voltage range ( ) to accommodate multiple primary-cell and single-cell Li-Ion battery-powered applications, in addition , and regulated input voltages. An internal 750 kHz gated oscillator makes theMCP1650/51/52/53 ideal for space-limited high switching frequency minimizes the size of theexternal inductor and capacitor, saving board spaceand cost.

3 The internal oscillator operates at two differ-ent duty cycles depending on the level of the input volt-age. By changing duty cycle in this fashion, the peakinput current is reduced at high input voltages, reducingoutput ripple voltage and electrical stress on powertrain components. When the input voltage is low, theduty cycle changes to a larger value in order to providefull-power capability at a wide input voltage rangetypical of battery-powered, portable MCP1650/51/52/53 was designed to drive externalswitches directly using internal features integrated on the MCP1650/51/52/53 family include peak input current limit, adjustableoutput voltage/current.

4 Low battery detection andpower-good Types10-Pin MSOPEXTGNDCSFBVINNCNCSHDN12348765 MCP16508-Pin MSOPGNDCSFBNCPGLBOLBISHDN23459876 MCP1653 EXTVIN110 EXTGNDCSFBVINPGNCSHDN12348765 MCP16528-Pin MSOPEXTGNDCSFBVINLBOLBISHDN12348765 MCP16518-Pin MSOP750 kHz Boost ControllerMCP1650/51/52/53DS21876B-page 2 2004-2013 Microchip Technology Block DiagramISNS+ +-+ -Internal Osc. with 2 fixed Duty CyclesVHIGHVLOW VDUTY+-VREFVINVHIGHVLOWVDUTYDC = 80% VIN < DC = 56% VIN > +-Voltage FeedbackCurrent DRSoft-StartON/OSC. 2004-2013 Microchip Technology 3 MCP1650/51/52/53 MCP1651/2/3 Block DiagramVinCSEXTMCP1650/51/52/53 SHDNGND+- Low Battery VrefLBILBO+-Power GoodComparatorsPG85% of VrefVIN+-115% of VrefVINMCP1651 - Low Battery DetectionMCP1652 - Power Good IndicationAMCP1650 - No FeaturesMCP1651 - Low Battery DetectionMCP1652 - Power Good IndicationMCP1653 - Low Battery Detection and PGMCP1650 VFBVref.

5 ( )MCP1653 - LBI and PG FeaturesMCP1650/51/52/53DS21876B-page 4 2004-2013 Microchip Technology Diagram Typical Application CircuitsLatch Truth TableSRQ00Qn011100111 OscSRQDREXTMCP1650/1/2/3 Timing 10%CIN10 H10 k VOUT = 12 VIOUT = 0 to 100 mA10 k MOSFET/SchottkyCombination to 12V 100 mA Boost Converter13 NCNCCOUT 2004-2013 Microchip Technology 5 mcp1650 /51/52 CHARACTERISTICSA bsolute Maximum Ratings VIN TO GND .. ,FB,LBI,LBO,SHDN,PG,EXT .. GND to VIN + at EXT pin.

6 1 AStorage temperature .. -65 C to +150 COperating Junction -40 C to +125 CESD protection on all pins 4kV HBM Notice: Stresses above those listed under Maximum Rat-ings may cause permanent damage to the device. This is astress rating only and functional operation of the device atthose or any other conditions above those indicated in theoperational listings of this specification is not implied. Expo-sure to maximum rating conditions for extended periods mayaffect device CHARACTERISTICSE lectrical Specifications: Unless otherwise noted, all parameters apply at VIN= + to + , SHDN=High,TJ= -40 C to +125 C.

7 Typical values apply for VIN= , TA+25 CharacteristicsSupply Lockout(S Option) rising edgeUnder Voltage Lockout(R Option) rising edgeUndervoltage HysteresisUVLOHYST 117 mVShutdown Supply CurrentISHD ASHDN = GNDQ uiescent Supply CurrentIQ 120220 AEXT = OpenSoft Start TimeTSS 500 sFeedback CharacteristicsFeedback conditionsFeedback Comparator HysteresisVHYS 1223 mVFeedback Input Bias CurrentIFBlk-50 50nAVFB < Sense InputCurrent Sense ThresholdISNS-TH75114155mVDelay from Current Sense to OutputTdly_ISNS 80 nsExt DriveEXT Driver ON Resistance (High Side)RHIGH 818 EXT Driver ON Resistance (Low Side)

8 RLOW 412 Oscillator CharacteristicsSwitching FrequencyFOSC650750850kHzLow Duty Cycle Switch-Over VoltageVLowDuty VVIN rising edgeDuty Cycle Switch Voltage HysteresisDCHyst 92 mVLow Duty CycleDCLOW505662%High Duty CycleDCHIGH728088% mcp1650 /51/52/53DS2187 6B-page 6 2004-2013 Microchip Technology SPECIFICATIONSS hutdown InputLogic High InputVIN-HIGH50 % of VINL ogic Low InputVIN-Low 15% of VINI nput Leakage CurrentISHDN 5100nASHDN=VINLow Battery Detect (MCP1651/MCP1653 Only)Low Battery Input falling (All Conditions)Low Battery Threshold HysteresisLBITHHYS95123145mVLow Battery Input Leakage CurrentILBI 10 nAVLBI = Battery Output VoltageVLBO 53200mVILB SINK = mA, VLBI = 0 VLow Battery Output Leakage CurrentILBO 1 AVLBI = , VLBO = Delay from LBI to LBOTD_LBO 70 sLBI Transitions from LBITH+ Good Output (MCP1652/MCP1653 Only)

9 Power Good Threshold LowVPGTH-L-20-15-10%Referenced to Feedback VoltagePower Good Threshold HighVPGTH-H+10+15+20%Referenced to Feedback VoltagePower Good Threshold HysteresisVPGTH-HYS 5 %Referenced to Feedback Voltage (Both Low and High Thresholds)Power Good Output VoltageVPGOUT 53200mVIPG SINK = mA, VFB = 0 VTime Delay from VFB out of regulation to Power Good Output transitionTD_PG 85 sVFB Transitions from VFBTH+ Specifications: Unless otherwise noted, all parameters apply at VIN = + to + , SHDN = High,TA = -40 C to +125 C. Typical values apply for VIN = , TA = +25 RangesStorage Temperature RangeTA-40 +125 COperating Junction Temperature RangeTJ-40 +125 CContinuousThermal Package ResistancesThermal Resistance, MSOP-8 JA 208 C/W Single-Layer SEMI G42-88 Board, Natural ConvectionThermal Resistance, MSOP-10 JA 113 C/W 4-Layer JC51-7 Standard Board, Natural Convection DC CHARACTERISTICS (CONTINUED)Electrical Specifications: Unless otherwise noted, all parameters apply at VIN= + to + , SHDN=High,TJ= -40 C to +125 C.

10 Typical values apply for VIN= , TA+25 2004-2013 Microchip Technology 7 mcp1650 /51/52 PERFORMANCE CURVESNote: Unless otherwise indicated, VIN = , VOUT= 12V, CIN = 10 F (x5R or X7R Ceramic), COUT = 10 F (X5R or X7R),IOUT=10mA, L= H, SHDN > VIH, TA = +25 2-1:Input Quiescent Current vs. Input 2-2:Input Quiescent Current vs. Ambient 2-3:Oscillator Frequency vs. Input 2-4:Oscillator Frequency vs. Ambient 2-5:Duty Cycle Switch-Over Voltage vs. Ambient 2-6:Duty Cycle Switch-Over Hysteresis Voltage vs. Ambient :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.