《机器人摄像头016max603.doc》由会员分享，可在线阅读，更多相关《机器人摄像头016max603.doc（13页珍藏版）》请在三一办公上搜索。
1、19-0269; Rev 0; 9/945V/3.3V or Adjustable, Low-Dropout,Low IQ, 500mA Linear Regulators_General DescriptionThe MAX603/MAX604 low-dropout, low quiescent cur-rent, linear regulators supply 5V, 3.3V, or an adjustableoutput for currents up to 500mA. They are available in a1.8W SO package. Typical dropout
2、s are 320mV at 5Vand 500mA, or 240mV at 3.3V and 200mA. Quiescentcurrents are 15A typ and 35A max. Shutdown turnsoff all circuitry and puts the regulator in a 2A off mode.A unique protection scheme limits reverse currentswhen the input voltage falls below the output. Other fea-tures include foldback
3、 current limiting and thermaloverload protection.The output is preset at 3.3V for the MAX604 and 5V forthe MAX603. In addition, both devices employ DualMode operation, allowing user-adjustable outputsfrom 1.25V to 11V using external resistors. The inputvoltage supply range is 2.7V to 11.5V.The MAX60
4、3/MAX604 feature a 500mA P-channel_Featureso500mA Output Current, with Foldback CurrentLimitingoHigh-Power (1.8W) 8-Pin SO PackageoDual Mode Operation: Fixed or AdjustableOutput from 1.25V to 11VoLarge Input Range (2.7V to 11.5V)oInternal 500mA P-Channel Pass Transistoro15A Typical Quiescent Current
5、o2A (Max) Shutdown ModeoThermal Overload ProtectionoReverse-Current Protection_Ordering InformationMOSFET pass transistor. This transistor allows thedevices to draw less than 35A over temperature, inde-pendent of the output current. The supply currentremains low because the P-channel MOSFET pass tra
6、n-sistor draws no base currents (unlike the PNP transis-tors of conventional bipolar linear regulators). Also,when the input-to-output voltage differential becomesPARTMAX603CPAMAX603CSAMAX603C/DMAX603EPAMAX603ESATEMP. RANGE0C to +70C0C to +70C0C to +70C-40C to +85C-40C to +85CPIN-PACKAGE8 Plastic DI
7、P8 SODice*8 Plastic DIP8 SOsmall, the internal P-channel MOSFET does not sufferMAX603MJA-55C to +125C8 CERDIP*from excessive base current losses that occur with sat-urated PNP transistors._Applications5V and 3.3V Regulators1.25V to 11V Adjustable RegulatorsMAX604CPAMAX604CSAMAX604C/DMAX604EPAMAX604E
8、SA0C to +70C0C to +70C0C to +70C-40C to +85C-40C to +85C8 Plastic DIP8 SODice*8 Plastic DIP8 SOBattery-Powered DevicesMAX604MJA-55C to +125C8 CERDIP*Pagers and Cellular PhonesPortable InstrumentsSolar-Powered Instruments_Typical Operating Circuit* Dice are tested at TA = +25C, DC parameters only.* C
9、ontact factory for availability._Pin ConfigurationTOP VIEWINMAX603MAX604OUTOUTPUTVOLTAGEINGND1287OUTGNDBATTERYCIN10FOFFGNDSETCOUT10FGNDOFF34MAX603MAX604DIP/SO65GNDSET Dual Mode is a trademark of Maxim Integrated Products._ Maxim Integrated Products1Call toll free 1-800-998-8800 for free samples or l
10、iterature. MAX603/MAX6045V/3.3V or Adjustable, Low-Dropout,Low IQ, 500mA Linear RegulatorsABSOLUTE MAXIMUM RATINGSSupply Voltage (IN or OUT to GND).-0.3V to +12VOutput Short-Circuit Duration .1 minContinuous Output Current .600mASET, OFF Input Voltages .-0.3V to the greater of(IN + 0.3V) or (OUT + 0
11、.3V)Continuous Power Dissipation (TA= +70C)Plastic DIP (derate 9.09mW/C above +70C) .727mWSO (derate 23.6mW/C above +70C) .1.8WCERDIP (derate 8.00mW/C above +70C) .640mWOperating Temperature RangesMAX60_C_A .0C to +70CMAX60_E_A .-40C to +85CMAX60_MJA .-55C to +125CJunction Temperature .+150CStorage
12、Temperature Range .-65C to +160CLead Temperature (soldering, 10sec) .+300CStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functionaloperation of the device at these or any other conditions beyond those indicat
13、ed in the operational sections of the specifications is not implied. Exposure toabsolute maximum rating conditions for extended periods may affect device reliability.ELECTRICAL CHARACTERISTICS(VIN = 6V (MAX603) or 4.3V (MAX604), CIN = COUT = 10F, OFF = VIN, SET = GND, TJ = TMIN to TMAX, unless other
14、wise noted.Typical values are at TJ = +25C.) (Note 1)PARAMETERSYMBOLCONDITIONSMAX60_CMINTYPMAX2.711.5UNITSInput VoltageVINSET = OUT, RL = 1kMAX60_EMAX60_M2.93.011.511.5VOutput Voltage (Note 2)Load RegulationVOUTVLDRIOUT = 20A to 500mA,6.0V VIN 11.5VIOUT = 20A to 300mA,4.3V VIN 11.5VIOUT = 1mA to 500
15、mAIOUT = 1mA to 300mAMAX603MAX604MAX603C/EMAX603MMAX6044.755.005.253.153.303.456010015030100VmVLine RegulationDropout Voltage (Note 3)VLNRVDO(VOUT + 0.5V) VIN 11.5V, IOUT = 25mAIOUT = 200mAMAX603IOUT = 500mAIOUT = 200mAMAX604IOUT = 400mAMAX60_C/E7130320240480154022055041082035mVmVQuiescent CurrentOF
16、F Quiescent CurrentMinimum Load CurrentFoldback Current Limit(Note 4)IQIQ OFFIOUT MINILIM3.0V VIN 11.5V, SET = OUTOFF 0.4V, RL = 1k,(VOUT + 1V) VIN 11.5VVIN = 11.5V, SET = OUTVOUT 0.8V and VIN - VOUT 0.7VMAX60_MMAX60_CMAX60_EMAX60_MMAX60_CMAX60_EMAX60_M0.01350120040210202620AAAmAThermal Shutdown Tem
17、peratureTSD160CThermal Shutdown HysteresisTSD10C2_ MAX603/MAX6045V/3.3V or Adjustable, Low-Dropout,Low IQ, 500mA Linear RegulatorsELECTRICAL CHARACTERISTICS (continued)(VIN = 6V (MAX603) or 4.3V (MAX604), CIN = COUT = 10F, OFF = VIN, SET = GND, TJ = TMIN to TMAX, unless otherwise noted.Typical value
18、s are at TJ = +25C.) (Note 1)PARAMETERReverse-Current ProtectionThreshold (Note 5)SYMBOLVRTHVOUT = 4.5VVOUT = 3.0VCONDITIONSMAX603MAX604MAX60_CMINTYPMAX6206200.0110UNITSmVReverse Leakage CurrentIRVLVIN = 0V, VOUT = 4.5V (MAX603)VOUT = 3.0V (MAX604)MAX60_EMAX60_M20100AStart-Up OvershootTime Required
19、to Exit ShutdownDual-Mode SET ThresholdVOSHtSTARTVSET THRL = 1k, COUT = 10F, OFF rise time 1sVIN = 9V, RL = 18, VOFF switched from0V to VIN, time from 0% to 95% of VOUTFor internal feedbackFor external feedback1502200808030%VOUTsmVSET Reference VoltageSET Input Leakage CurrentOUT Leakage CurrentOFF
20、Threshold VoltageOFF Input Leakage CurrentVSETISETIOUT LKGVIL OFFVIH OFFIOFFSET = OUT, RL = 1kVSET = 1.5V or 0VVIN = 11.5V, VOUT = 2V,SET = OUTOffOn, SET = OUT, VIN = 4VOn, SET = OUT, VIN = 6VOn, SET = OUT, VIN = 11.5VVOFF = VIN or GNDMAX60_CMAX60_EMAX60_M1.161.201.240.01100.0126200.42.03.04.00.0110
21、VnAAVnAOutput Noise (Note 6)en10Hz to 10kHz, SET = OUT, RL = 1k,COUT = 10F250VRMSNote 1:Electrical specifications are measured by pulse testing and are guaranteed for a junction temperature (TJ) equal to theoperating temperature range. C and E grade parts may be operated up to a TJ of +125. Expect p
22、erformance similar toM grade specifications. For TJ between +125C and +150C, the output voltage may drift more.Note 2:(VIN - VOUT) is limited to keep the product (IOUT x (VIN - VOUT) from exceeding the package power dissipation limits.Note 3:Dropout Voltage is (VIN - VOUT) when VOUT falls to 100mV b
23、elow its nominal value at VIN = VOUT + 2V. For example, theMAX603 is tested by measuring the VOUT at VIN = 7V, then VIN is lowered until VOUT falls 100mV below the measured value.The difference (VIN - VOUT) is then measured and defined as VDO.Note 4:Foldback Current Limit was characterized by pulse
24、testing to remain below the maximum junction temperature.Note 5:The Reverse-Current Protection Threshold is the output/input differential voltage (VOUT - VIN) at which reverse-currentprotection switchover occurs and the pass transistor is turned off.Note 6:Noise is tested using a bandpass amplifier
25、with two poles at 10Hz and two poles at 10kHz._3 MAX603/MAX6045V/3.3V or Adjustable, Low-Dropout,Low IQ, 500mA Linear Regulators_Typical Operating Characteristics(VIN = 7V for MAX603, VIN = 5.3V for MAX604, OFF = VIN, SET = GND, CIN = COUT = 10F, RL = 1k, TJ = +25C, unless otherwise noted.)OUTPUT VO
26、LTAGE AND1.01OUTPUT VOLTAGE vs. LOAD CURRENT30QUIESCENT CURRENT vs. LOAD CURRENT QUIESCENT CURRENT vs. SUPPLY VOLTAGE 6241.000.990.980.970.960.95VOUT = 3.3V, 5V, 10VNORMALIZED TO OUTPUT VOLTAGE AT 1mA2520151050MAX603, VIN = 12V, VOUT = 10VMAX603, VIN = 7V, VOUT = 5VMAX604, VIN = 5.3V, VOUT = 3.3VUPW
27、ARD CURVE ISTHERMAL EFFECT543210MAX603, VOUT = 5VMAX604, VOUT = 3.3V22201816141210860.11101007000.11101007002345678910111210410310210110099989796-55LOAD CURRENT (mA)OUTPUT VOLTAGE vs.TEMPERATURE-35-15525456585105TEMPERATURE (C)1252520151050-55LOAD CURRENT (mA)QUIESCENT CURRENT vs.TEMPERATUREMAX603MA
28、X604-35-15525456585105125TEMPERATURE (C)0.90.80.70.60.50.40.30.20.10SUPPLY VOLTAGE (V)DROPOUT VOLTAGE vs. LOAD CURRENTMAX604VOUT = 3.3VMAX603 VOUT = 5V MAX603, VOUT = 10V, SET EXTERNALLY0100200300400500600700LOAD CURRENT (mA)MAX60310Hz TO 10kHz OUTPUT NOISEMAX603VOUT = 5VLINE-TRANSIENT RESPONSEABVOU
29、T = 5V10ms/divtR = 10s, tF = 70s2ms/divA: VIN = 8V (HIGH), VIN = 7V (LOW)B: OUTPUT VOLTAGE (50mV/div)4_ MAX603/MAX604 MAX603/4-TOC-01 NORMALIZED OUTPUT VOLTAGE MAX603/4-TOC-02 QUIESCENT CURRENT ( A) MAX1603/4 TOC-03 OUTPUT VOLTAGE (V) QUIESCENT CURRENT ( A) I Q , MAX604 I Q , MAX603 MAX603/4-TOC-04
30、NORMALIZED OUTPUT VOLTAGE (%) OUTPUT NOISE (1mV/div) MAX603/4-TOC-05 QUIESCENT CURRENT ( A) MAX603/4-TOC-06 DROPOUT VOLTAGE (V) R DS(ON) = 0.4 R DS(ON) = 0.65 R DS(ON) = 1.2 5V/3.3V or Adjustable, Low-Dropout,Low IQ, 500mA Linear Regulators_Typical Operating Characteristics (continued)(VIN = 7V for
31、MAX603, VIN = 5.3V for MAX604, OFF = VIN, SET = GND, CIN = COUT = 10F, RL = 1k, TJ = +25C, unless otherwise noted.)OVERSHOOT AND TIMEMAX603LOAD-TRANSIENT RESPONSEABEXITING SHUTDOWN MODEBA5V0VVOUT = 5V2ms/div500s/divA: OFF PIN VOLTAGE (1V/div)A: OUTPUT VOLTAGE (100mV/div)B: IOUT = 500mA (HIGH), IOUT
32、= 5mA (LOW) RISE TIME = 13sB: MAX603 OUTPUT VOLTAGE (1V/div) DELAY = 4.936ms, OVERSHOOT = 1%, RISE TIME = 55s_Pin DescriptionPINNAMEDESCRIPTION1INRegulator Input. Supply voltage can range from 2.7V to 11.5V.2, 3, 6, 7GNDGround. These pins function as heatsinks, only in the SOIC package. All GND pins
33、 must be soldered to thecircuit board for proper power dissipation. Connect to large copper pads or planes to channel heat from the IC.458OFFShutdown, active low. Switch logic levels in less than 1s with the high level above the OFF threshold.SETFeedback for Setting the Output Voltage. Connect to GN
34、D to set the output voltage to the preselected 3.3Vor 5V. Connect to an external resistor network for adjustable output operation.OUTRegulator Output. Fixed or adjustable from 1.25V to 11.0V. Sources up to 500mA for input voltages above 4V.18INMAX603OUTVOUTFigure 1. Test CircuitVINCIN10F234GNDGNDOFF
35、MAX604GNDGNDSET765R1R2COUT10FRL_5 MAX603/MAX6045V/3.3V or Adjustable, Low-Dropout,Low IQ, 500mA Linear RegulatorsINSHUTDOWNMOSFET DRIVERWITH FOLDBACKREVERSEOFFGNDSHUTDOWNLOGICTHERMALSENSOR1.20VREFERENCEERROR AMPDUAL-MODECOMPARATORCURRENT LIMIT80mVPR1R2CURRENTPROTECTIONMAX603MAX604OUTSETFigure 2. Fun
36、ctional Diagram_Detailed DescriptionThe MAX603/MAX604 are low-dropout, low-quiescent-current linear regulators designed primarily for battery-powered applications. They supply an adjustable 1.25Vto 11V output or a preselected 5V (MAX603) or 3.3V(MAX604) output for load currents up to 500mA. Asillustrated in Figure 2, they consist of a 1.20V reference,error amplifier, MOSFET driver, P-channel pass transis-tor, dual-mode comparator, and internal feedback volt-age divider.The 1.20V bandgap reference is connected to the erroramplifiers inverting input.
