L293D

L293D SYC | Alldatasheet

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L293, L293D QUADRUPLE HALF-H DRIVERS SLRS008B – SEPTEMBER 1986 – REVISED JUNE 2002 /C0068 Featuring Unitrode L293 and L293D Products Now From Texas Instruments /C0068 Wide Supply-Voltage Range: 4.5 V to 36 V /C0068 Separate Input-Logic Supply /C0068 Internal ESD Protection /C0068 Thermal Shutdown /C0068 High-Noise-Immunity Inputs /C0068 Functional Replacements for SGS L293 and SGS L293D /C0068 Output Current 1 A Per Channel (600 mA for L293D) /C0068 Peak Output Current 2 A Per Channel (1.2 A for L293D) /C0068 Output Clamp Diodes for Inductive Transient Suppression (L293D)

description

The L293 and L293D are quadruple high-current half-H drivers. The L293 is designed to provide bidirectional drive currents of up to 1 A at voltages from 4.5 V to 36 V. The L293D is designed to provide bidirectional drive currents of up to 600-mA at voltages from 4.5 V to 36 V. Both devices are designed to drive inductive loads such as relays, solenoids, dc and bipolar stepping motors, as well as other high-current/high-voltage loads in positive-supply applications. All inputs are TTL compatible. Each output is a complete totem-pole drive circuit, with a Darlington 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 4 enabled by 3,4EN. When an enable input is high, the associated drivers are enabled and their outputs are active and in phase with their inputs. When the enable input is low, those drivers are disabled and their outputs are off and in the high-impedance state. With the proper data inputs, each pair of drivers forms a full-H (or bridge) reversible drive suitable for solenoid or motor applications. On the L293, external high-speed output clamp diodes should be used for inductive transient suppression. A V CC1 terminal, separate from VCC2 , is provided for the logic inputs to minimize device power dissipation. The L293and L293D are characterized for operation from 0°C to 70°C. HEAT SINK AND GROUND HEAT SINK AND GROUND 1,2EN V CC2 VCC1 3,4EN N, NE PACKAGE (TOP VIEW) 1,2EN NC NC NC NC NC V CC2 VCC1 NC NC NC NC NC 3,4EN DWP PACKAGE (TOP VIEW) HEAT SINK AND GROUND HEAT SINK AND GROUND

L293, L293D QUADRUPLE HALF-H DRIVERS block diagram 8 9 161 M M M VC VCC1 NOTE: Output diodes are internal in L293D. TEXAS INSTRUMENTS AVAILABLE OPTIONS PACKAGE TA PLASTIC DIP (NE) 0°C to 70°C L293NE L293DNE AVAILABLE OPTIONS PACKAGED DEVICES TA SMALL OUTLINE (DWP) PLASTIC DIP (N) 0°C to 70°C L293DWP L293DDWP L293N L293DN The DWP package is available taped and reeled. Add the suffix TR to device type (e.g., L293DWPTR).

L293, L293D QUADRUPLE HALF-H DRIVERS FUNCTION TABLE (each driver) INPUTS † OUTPUT A EN Y H H H L HL X L Z H = high level, L = low level, X = irrelevant, Z = high impedance (off) † In the thermal shutdown mode, the output is in the high-impedance state, regardless of the input levels. logic diagram ÁÁ ÁÁ ÁÁ ÁÁ ÁÁ ÁÁ ÁÁ ÁÁ ÁÁ ÁÁ 1,2EN 3,4EN schematics of inputs and outputs (L293) Input VCC2 Output GND TYPICAL OF ALL OUTPUTSEQUIVALENT OF EACH INPUT VCC1 Current Source GND

L293, L293D QUADRUPLE HALF-H DRIVERS schematics of inputs and outputs (L293D) Input VCC2 Output GND TYPICAL OF ALL OUTPUTSEQUIVALENT OF EACH INPUT VCC1 Current Source GND absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. 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. For operation above 25°C free-air temperature, derate linearly at the rate of 16.6 mW/°C. 3. For operation above 25°C case temperature, derate linearly at the rate of 71.4 mW/°C. Due to variations in individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be activated at power levels slightly above or below the rated dissipation.

L293, L293D QUADRUPLE HALF-H DRIVERS recommended operating conditions MIN MAX UNIT Supply voltage VCC1 4.5 7 VSupply voltage VCC2 VCC1 36 V VIH High level input voltage VCC1 ≤ 7 V 2.3 VCC1 V VIH High-level input voltage VCC1 ≥ 7 V 2.3 7 V VIL Low-level output voltage –0.3† 1.5 V TA Operating free-air temperature 0 70 °C † The algebraic convention, in which the least positive (most negative) designated minimum, is used in this data sheet for logic voltage levels. electrical characteristics, VCC1 = 5 V, VCC2 = 24 V, TA = 25°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOH High-level output voltage L293: IOH = –1 A L293D: IOH = –0.6 A VCC2 –1.8 VCC2 –1.4 V VOL Low-level output voltage L293: IOL = 1 A L293D: IOL = 0.6 A 1.2 1.8 V VOKH High-level output clamp voltageL293D: IOK = –0.6 A VCC2 + 1.3 V VOKL Low-level output clamp voltageL293D: IOK = 0.6 A 1.3 V IIH High level input current A VI=7V 0.2 100 µAIIH High-level input current EN VI = 7 V 0.2 10 µA IIL Low level input current A VI=0 –3 –10 µAIIL Low -level input current EN VI = 0 –2 –100 µA All outputs at high level 13 22 ICC1 Logic supply current I O = 0 All outputs at low level 35 60 mA All outputs at high impedance 8 24 All outputs at high level 14 24 ICC2 Output supply current I O = 0 All outputs at low level 2 6 mA All outputs at high impedance 2 4 switching characteristics, VCC1 = 5 V, VCC2 = 24 V, TA = 25°C PARAMETER TEST CONDITIONS L293NE, L293DNE UNITPARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH Propagation delay time, low-to-high-level output from A input 800 ns tPHL Propagation delay time, high-to-low-level output from A input C L =3 0 pF See Figure 1 400 ns tTLH Transition time, low-to-high-level output C L = 30 pF, See Figure 1 300 ns tTHL Transition time, high-to-low-level output 300 ns switching characteristics, VCC1 = 5 V, VCC2 = 24 V, TA = 25°C PARAMETER TEST CONDITIONS L293DWP , L293N L293DDWP , L293DN UNIT MIN TYP MAX tPLH Propagation delay time, low-to-high-level output from A input 750 ns tPHL Propagation delay time, high-to-low-level output from A input C L =3 0 pF See Figure 1 200 ns tTLH Transition time, low-to-high-level output C L = 30 pF, See Figure 1 100 ns tTHL Transition time, high-to-low-level output 350 ns

NOTES: A. C L includes probe and jig capacitance. B. The pulse generator has the following characteristics: tr ≤ 10 ns, tf ≤ 10 ns, tw = 10 µs, PRR = 5 kHz, ZO = 50 Ω .

5 V 24 V

Figure 1. Test Circuit and Voltage Waveforms

L293, L293D QUADRUPLE HALF-H DRIVERS

APPLICATION INFORMATION

24 V5 V

10 kΩ VCC1 VCC2 Control A Control B 4, 5, 12, 13 GND Thermal Shutdown Motor 16 3 1,2EN 3,4EN Figure 2. Two-Phase Motor Driver (L293)

L293, L293D QUADRUPLE HALF-H DRIVERS 10 kΩ VCC1 VCC2 16 3 1,2EN 3,4EN Control A Control B 4, 5, 12, 13 GND Thermal Shutdown Motor Figure 3. Two-Phase Motor Driver (L293D)