1、C0076C0050C0057C0051C0044 C0076C0050C0057C0051C0068C0081C0085C0065C0068C0082C0085C0080C0076C0069 C0072C0065C0076C0070C0262C0072 C0068C0082C0073C0086C0069C0082C0083SLRS008C SEPTEMBER 1986 REVISED NOVEMBER 20041POST OFFICE BOX 655303 DALLAS, TEXAS 75265C0068 Featuring Unitrode L293 and L293DProducts N
2、ow From Texas InstrumentsC0068 Wide Supply-Voltage Range: 4.5 V to 36 VC0068 Separate Input-Logic SupplyC0068 Internal ESD ProtectionC0068 Thermal ShutdownC0068 High-Noise-Immunity InputsC0068 Functionally Similar to SGS L293 andSGS L293DC0068 Output Current 1 A Per Channel(600 mA for L293D)C0068 Pe
3、ak Output Current 2 A Per Channel(1.2 A for L293D)C0068 Output Clamp Diodes for InductiveTransient Suppression (L293D)description/ordering informationThe L293 and L293D are quadruple high-currenthalf-H drivers. The L293 is designed to providebidirectional drive currents of up to 1 A at voltagesfrom
4、4.5 V to 36 V. The L293D is designed toprovide bidirectional drive currents of up to600-mA at voltages from 4.5 V to 36 V. Bothdevices are designed to drive inductive loads suchas relays, solenoids, dc and bipolar steppingmotors, as well as other high-current/high-voltageloads in positive-supply app
5、lications.All inputs are TTL compatible. Each output is acomplete totem-pole drive circuit, with aDarlington transistor sink and a pseudo-Darlington source. Drivers are enabled in pairs, with drivers 1 and 2 enabled by 1,2EN and drivers 3 and 4enabled by 3,4EN. When an enable input is high, the asso
6、ciated drivers are enabled, and their outputs are activeand in phase with their inputs. When the enable input is low, those drivers are disabled, and their outputs areoff and in the high-impedance state. With the proper data inputs, each pair of drivers forms a full-H (or bridge)reversible drive sui
7、table for solenoid or motor applications.ORDERING INFORMATIONTAPACKAGEORDERABLEPART NUMBERTOP-SIDEMARKINGHSOP (DWP) Tube of 20 L293DWP L293DWP0C to 70CPDIP (N) Tube of 25 L293N L293NPDIP (NE)Tube of 25 L293NE L293NETube of 25 L293DNE L293DNEPackage drawings, standard packing quantities, thermal data
8、, symbolization, and PCB design guidelines are available 2004, Texas Instruments IncorporatedC0080C0082C0079C0068C0085C0067C0084C0073C0079C0078 C0068C0065C0084C0065 C0105C0110C0102C0111C0114C0109C0097C0116C0105C0111C0110 C0105C0115 C0099C0117C0114C0114C0101C0110C0116 C0097C0115 C0111C0102 C0112C011
9、7C0098C0108C0105C0099C0097C0116C0105C0111C0110 C0100C0097C0116C0101C0046C0080C0114C0111C0100C0117C0099C0116C0115 C0099C0111C0110C0102C0111C0114C0109 C0116C0111 C0115C0112C0101C0099C0105C0102C0105C0099C0097C0116C0105C0111C0110C0115 C0112C0101C0114 C0116C0104C0101 C0116C0101C0114C0109C0115 C0111C0102
10、C0084C0101C0120C0097C0115 C0073C0110C0115C0116C0114C0117C0109C0101C0110C0116C0115C0115C0116C0097C0110C0100C0097C0114C0100 C0119C0097C0114C0114C0097C0110C0116C0121C0046 C0080C0114C0111C0100C0117C0099C0116C0105C0111C0110 C0112C0114C0111C0099C0101C0115C0115C0105C0110C0103 C0100C0111C0101C0115 C0110C011
11、1C0116 C0110C0101C0099C0101C0115C0115C0097C0114C0105C0108C0121 C0105C0110C0099C0108C0117C0100C0101C0116C0101C0115C0116C0105C0110C0103 C0111C0102 C0097C0108C0108 C0112C0097C0114C0097C0109C0101C0116C0101C0114C0115C0046Please be aware that an important notice concerning availability, standard warranty,
12、 and use in critical applications ofTexas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.HEAT SINK ANDGROUNDHEAT SINK ANDGROUND123456781615141312111091,2EN1A1Y2Y2AVCC2VCC14A4Y3Y3A3,4ENL293 .N OR NE PACKAGEL293D . . . NE PACKAGE(TOP VIEW)1234567891011
13、12131428272625242322212019181716151,2EN1A1YNCNCNCNCNC2Y2AVCC2VCC14A4YNCNCNCNCNC3Y3A3,4ENL293 . . . DWP PACKAGE(TOP VIEW)HEAT SINK ANDGROUNDHEAT SINK ANDGROUNDC0076C0050C0057C0051C0044 C0076C0050C0057C0051C0068C0081C0085C0065C0068C0082C0085C0080C0076C0069 C0072C0065C0076C0070C0262C0072 C0068C0082C007
14、3C0086C0069C0082C0083SLRS008C SEPTEMBER 1986 REVISED NOVEMBER 20042 POST OFFICE BOX 655303 DALLAS, TEXAS 75265description/ordering information (continued)On the L293, external high-speed output clamp diodes should be used for inductive transient suppression.A VCC1terminal, separate from VCC2, is pro
15、vided for the logic inputs to minimize device power dissipation.The L293and L293D are characterized for operation from 0C to 70C.block diagram103456789101112131415161210110243MMM101010VCC2VCC1NOTE: Output diodes are internal in L293D.FUNCTION TABLE(each driver)INPUTSOUTPUTA ENYH H HL HLX L ZH = high
16、 level, L = low level, X = irrelevant,Z = high impedance (off)In the thermal shutdown mode, the output isin the high-impedance state, regardless ofthe input levels.C0076C0050C0057C0051C0044 C0076C0050C0057C0051C0068C0081C0085C0065C0068C0082C0085C0080C0076C0069 C0072C0065C0076C0070C0262C0072 C0068C00
17、82C0073C0086C0069C0082C0083SLRS008C SEPTEMBER 1986 REVISED NOVEMBER 20043POST OFFICE BOX 655303 DALLAS, TEXAS 75265logic diagram217109153611141A1,2EN2A3A3,4EN4A1Y2Y3Y4Yschematics of inputs and outputs (L293)InputVCC2OutputGNDTYPICAL OF ALL OUTPUTSEQUIVALENT OF EACH INPUTVCC1CurrentSourceGNDC0076C005
18、0C0057C0051C0044 C0076C0050C0057C0051C0068C0081C0085C0065C0068C0082C0085C0080C0076C0069 C0072C0065C0076C0070C0262C0072 C0068C0082C0073C0086C0069C0082C0083SLRS008C SEPTEMBER 1986 REVISED NOVEMBER 20044 POST OFFICE BOX 655303 DALLAS, TEXAS 75265schematics of inputs and outputs (L293D)InputVCC2OutputGN
19、DTYPICAL OF ALL OUTPUTSEQUIVALENT OF EACH INPUTVCC1CurrentSourceGNDabsolute maximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage, VCC1(see Note 1) 36 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20、 . . . . . . Output supply voltage, VCC236 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage, VI7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21、. . . . . . . . . . . . . . . . . . . . . . Output voltage range, VO3 V to VCC2+ 3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Peak output current, IO(nonrepetitive, t 5 ms): L293 2 A. . . . . . . . . . . . . . . . . . . . . . . . . .
22、. . . . . . . . . . . . . . . . Peak output current, IO(nonrepetitive, t 100 s): L293D 1.2 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous output current, IO: L293 1 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23、 . . . . . . . . Continuous output current, IO: L293D 600 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package thermal impedance, JA(see Notes 2 and 3): DWP package TBDC/W. . . . . . . . . . . . . . . . . . . . . . . N package 67C/W. . . .
24、 . . . . . . . . . . . . . . . . . . . . . . . . NE package TBDC/W. . . . . . . . . . . . . . . . . . . . . . . . . Maximum junction temperature, TJ150C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg65C
25、 to 150C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, andfunctional operation of the device at these or any o
26、ther conditions beyond those indicated under “recommended operating conditions” is notimplied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.NOTES: 1. All voltage values are with respect to the network ground terminal.2. Maximum power dissipation is
27、 a function of TJ(max), C0113JA, and TA. The maximum allowable power dissipation at any allowableambient temperature is PD= (TJ(max) TA)/C0113JA. Operating at the absolute maximum TJof 150C can affect reliability.3. The package thermal impedance is calculated in accordance with JESD 51-7.C0076C0050C
28、0057C0051C0044 C0076C0050C0057C0051C0068C0081C0085C0065C0068C0082C0085C0080C0076C0069 C0072C0065C0076C0070C0262C0072 C0068C0082C0073C0086C0069C0082C0083SLRS008C SEPTEMBER 1986 REVISED NOVEMBER 20045POST OFFICE BOX 655303 DALLAS, TEXAS 75265recommended operating conditionsMIN MAX UNITSupply voltageVC
29、C14.5 7VSupply voltageVCC2VCC136VIHHigh-level input voltageVCC1 7 V 2.3 VCC1VVCC1 7 V 2.3 7 VVILLow-level output voltage 0.31.5 VTAOperating free-air temperature 0 70 CThe algebraic convention, in which the least positive (most negative) designated minimum, is used in this data sheet for logic volta
30、ge levels.electrical characteristics, VCC1= 5 V, VCC2= 24 V, TA= 25CPARAMETER TEST CONDITIONS MIN TYP MAX UNITVOHHigh-level output voltageL293: IOH= 1 AL293D: IOH= 0.6 AVCC2 1.8 VCC2 1.4 VVOLLow-level output voltageL293: IOL= 1 AL293D: IOL= 0.6 A1.2 1.8 VVOKHHigh-level output clamp voltage L293D: IO
31、K= 0.6 A VCC2+ 1.3 VVOKLLow-level output clamp voltage L293D: IOK= 0.6 A 1.3 VIIHHigh-level input currentAVI= 7 V0.2 100AEN 0.2 10IILLow-level input currentAVI= 03 10AEN 2 100All outputs at high level 13 22ICC1Logic supply current IO= 0All outputs at low level 35 60mAAll outputs at high impedance 8
32、24All outputs at high level 14 24ICC2Output supply current IO= 0 All outputs at low level 2 6 mAAll outputs at high impedance 2 4switching characteristics, VCC1= 5 V, VCC2= 24 V, TA= 25CPARAMETER TEST CONDITIONSL293NE, L293DNEUNITMIN TYP MAXtPLHPropagation delay time, low-to-high-level output from A
33、 input 800 nstPHLPropagation delay time, high-to-low-level output from A inputCL= 30 pF, See Figure 1400 nstTLHTransition time, low-to-high-level output 300 nstTHLTransition time, high-to-low-level output 300 nsswitching characteristics, VCC1= 5 V, VCC2= 24 V, TA= 25CPARAMETER TEST CONDITIONSL293DWP
34、, L293NL293DNUNITMIN TYP MAXtPLHPropagation delay time, low-to-high-level output from A input 750 nstPHLPropagation delay time, high-to-low-level output from A inputCL= 30 pF, See Figure 1200 nstTLHTransition time, low-to-high-level output 100 nstTHLTransition time, high-to-low-level output 350 nsC0
35、076C0050C0057C0051C0044 C0076C0050C0057C0051C0068C0081C0085C0065C0068C0082C0085C0080C0076C0069 C0072C0065C0076C0070C0262C0072 C0068C0082C0073C0086C0069C0082C0083SLRS008C SEPTEMBER 1986 REVISED NOVEMBER 20046 POST OFFICE BOX 655303 DALLAS, TEXAS 75265PARAMETER MEASUREMENT INFORMATIONOutputCL= 30 pF(s
36、ee Note A)VCC1Input3 VTEST CIRCUITtftr3 V0tPHLVOHtTHLtTLHVOLTAGE WAVEFORMStPLHOutputInputVOLtwNOTES: A. CLincludes probe and jig capacitance.B. The pulse generator has the following characteristics: tr 10 ns, tf 10 ns, tw= 10 s, PRR = 5 kHz, ZO= 50 .PulseGenerator(see Note B)5 V 24 VVCC2AENY90%90%50
37、%10%50%10%90% 90%50%10%50%10%Figure 1. Test Circuit and Voltage WaveformsC0076C0050C0057C0051C0044 C0076C0050C0057C0051C0068C0081C0085C0065C0068C0082C0085C0080C0076C0069 C0072C0065C0076C0070C0262C0072 C0068C0082C0073C0086C0069C0082C0083SLRS008C SEPTEMBER 1986 REVISED NOVEMBER 20047POST OFFICE BOX 65
38、5303 DALLAS, TEXAS 75265APPLICATION INFORMATION24 V5 V10 kVCC1VCC2Control AControl B4, 5, 12, 13GNDThermalShutdownMotor16 83611144Y3Y2Y1Y1,2EN1A2A3,4EN3A4A15109721Figure 2. Two-Phase Motor Driver (L293)C0076C0050C0057C0051C0044 C0076C0050C0057C0051C0068C0081C0085C0065C0068C0082C0085C0080C0076C0069 C
39、0072C0065C0076C0070C0262C0072 C0068C0082C0073C0086C0069C0082C0083SLRS008C SEPTEMBER 1986 REVISED NOVEMBER 20048 POST OFFICE BOX 655303 DALLAS, TEXAS 75265APPLICATION INFORMATION24 V5 V10 kVCC1VCC21681,2EN11A22A73,4EN93A104A15Control AControl B4, 5, 12, 13GNDThermalShutdownMotor1Y32Y63Y114Y14Figure 3
40、. Two-Phase Motor Driver (L293D)C0076C0050C0057C0051C0044 C0076C0050C0057C0051C0068C0081C0085C0065C0068C0082C0085C0080C0076C0069 C0072C0065C0076C0070C0262C0072 C0068C0082C0073C0086C0069C0082C0083SLRS008C SEPTEMBER 1986 REVISED NOVEMBER 20049POST OFFICE BOX 655303 DALLAS, TEXAS 75265APPLICATION INFOR
41、MATIONEN 3A M1 4A M2H H Fast motor stop H RunH L Run L Fast motor stopL XFree-running motorstopXFree-running motorstopL = low, H = high, X = dont careEN 1A 2A FUNCTIONH L H Turn rightH H L Turn leftH L L Fast motor stopH H H Fast motor stopL X X Fast motor stopL = low, H = high, X = dont careVCC2SES
42、50011/2 L2934, 5, 12, 1310SES5001VCC1EN1511 14169M2M13A 4A8Figure 4. DC Motor Controls(connections to ground and to supply voltage)GND2 SES50011/2 L2934, 5, 12, 1336781216VCC22 SES50012A 1AVCC1ENMFigure 5. Bidirectional DC Motor ControlGNDC0076C0050C0057C0051C0044 C0076C0050C0057C0051C0068C0081C0085
43、C0065C0068C0082C0085C0080C0076C0069 C0072C0065C0076C0070C0262C0072 C0068C0082C0073C0086C0069C0082C0083SLRS008C SEPTEMBER 1986 REVISED NOVEMBER 200410 POST OFFICE BOX 655303 DALLAS, TEXAS 75265APPLICATION INFORMATION34567812910111213141516+D7D8 D4D3L2 IL2C1D5 D1D6 D2VCC1L293IL1/IL2 = 300 mA0.22 FVCC2
44、L1 IL1D1D8 = SES5001Figure 6. Bipolar Stepping-Motor Controlmounting instructionsThe Rthj-amp of the L293 can be reduced by soldering the GND pins to a suitable copper area of the printedcircuit board or to an external heat sink.Figure 9 shows the maximum package power PTOTand the JAas a function of
45、 the side of two equal squarecopper areas having a thickness of 35 m (see Figure 7). In addition, an external heat sink can be used (seeFigure 8).During soldering, the pin temperature must not exceed 260C, and the soldering time must not exceed 12seconds.The external heatsink or printed circuit copp
46、er area must be connected to electrical ground.C0076C0050C0057C0051C0044 C0076C0050C0057C0051C0068C0081C0085C0065C0068C0082C0085C0080C0076C0069 C0072C0065C0076C0070C0262C0072 C0068C0082C0073C0086C0069C0082C0083SLRS008C SEPTEMBER 1986 REVISED NOVEMBER 200411POST OFFICE BOX 655303 DALLAS, TEXAS 75265A
47、PPLICATION INFORMATIONCopper Area 35-m ThicknessPrinted Circuit BoardFigure 7. Example of Printed Circuit Board Copper Area (used as heat sink)11.9 mm17.0 mm38.0 mmFigure 8. External Heat Sink Mounting Example(JA= 25C/W)C0076C0050C0057C0051C0044 C0076C0050C0057C0051C0068C0081C0085C0065C0068C0082C008
48、5C0080C0076C0069 C0072C0065C0076C0070C0262C0072 C0068C0082C0073C0086C0069C0082C0083SLRS008C SEPTEMBER 1986 REVISED NOVEMBER 200412 POST OFFICE BOX 655303 DALLAS, TEXAS 75265APPLICATION INFORMATION310201020P4MAXIMUM POWER AND JUNCTION vsTHERMAL RESISTANCE30TOT Power Dissipation W602004080JA Thermal R
49、esistance C/W40Side mmFigure 9JAPTOT(TA= 70C)505310250 0 504MAXIMUM POWER DISSIPATIONvsAMBIENT TEMPERATURE100TA Ambient Temperature CWith Infinite Heat SinkFree AirHeat Sink With JA= 25C/WFigure 10150PTOT Power Dissipation WPACKAGING INFORMATIONOrderable Device Status (1) PackageTypePackageDrawingPins PackageQtyEco Plan (2) Lead/Ball Finish MSL Peak Temp (3)L293DDWP OBSOLE
