Puente h 293 data

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L293B L293E
PUSH-PULL FOUR CHANNEL DRIVERS

. . . . . .

OUTPUT CURRENT 1A PER CHANNEL PEAK OUTPUT CURRENT 2A PER CHANNEL (non repetitive) INHIBIT FACILITY HIGH NOISE IMMUNITY SEPARATE LOGIC SUPPLY OVERTEMPERATURE PROTECTION

DIP16 ORDERING NUMBER : L293B

DESCRIPTION The L293B and L293E are quad push-pull drivers capableof delivering output currents to 1A per channel. Each channel iscontrolledby a TTL-compatible logic input and each pair of drivers (a full bridge) is equipped with an inhibit input which turns off all four transistors. A separate supply input is provided for the logic so that it may be run off a lower voltage to reduce dissipation. Additionally, the L293E has external connection of sensing resistors, for switchmode control. The L293Band L293E are package in 16and 20-pin plastic DIPs respectively ; both use the four center pins to conduct heat to the printed circuit board. PIN CONNECTIONS
DIP16 - L293B

POWERDIP (16 + 2+ 2) ORDERING NUMBER : L293E

POWERDIP (16+2+2) - L293E

April 1993

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L293B - L293E
BLOCK DIAGRAMS
DIP16 - L293B

POWERDIP (16+2+2) - L293E

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L293B - L293E
SCHEMATIC DIAGRAM

(*) In the L293 these pointsare not externally available. They are internally connected to the ground (substrate). O Pins of L293 () Pins of L293E.

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L293B - L293E
ABSOLUTE MAXIMUM RATINGS
Symbol Vs Vss Vi Vinh Iout Ptot Tstg, Tj Parameter Supply Voltage Logic Supply Voltage Input Voltage Inhibit Voltage Peak Output Current (non repetitive t = 5ms) o Total Power Dissipation at Tground-pins = 80 C Storage andJunction Temperature Value 36 36 7 7 2 5 –40 to +150 Unit V V V V A W o C

THERMAL DATA
Symbol Rth j-case R th j-amb Parameter Thermal Resistance Junction-case Thermal Resistance Junction-ambient Max. Max. Value 14 80 Unit C/W o C/W
o

ELECTRICAL CHARACTERISTICS For each channel, VS = 24V, VSS = 5V, Tamb = 25oC, unless otherwise specified
Symbol Vs Vss Is Iss Parameter Supply Voltage LogicSupply Voltage Total Quiescent Supply Current Test Conditions Min. Vss 4.5 = = = = = = H H L H H L -03. 2.3 2.3 30 -0.3 2.3 2.3 -30 1.4 1.2 250 250 750 200 TYp. Max. 36 36 6 24 4 60 22 24 1.5 Vss 7 -10 100 1.5 Vss 7 -100 ±10 1.8 1.8 2 Unit V V mA

Vi = L Vi = H Vi = L Vi = H

Io = 0 Io = 0 Io = 0 Io = 0

Total Quiescent Logic Supply Current

Vinh Vinh Vinh Vinh Vinh Vinh

2 16 44 16 16

mAViL ViH IiL IiH VinhL VinhH IinhL IinhH VCEsatH VCEsatL VSENS tr tf ton toff
* **

Input Low Voltage Input High Voltage Low Voltage Input Current High Voltage Input Current Inhibit Low Voltage Inhibit High Voltage Low Voltage Inhibit Current High Voltage Inhibit Current Source Output Saturation Voltage Sink Output Saturation Voltage Sensing Voltage (pins 4, 7, 14, 17) (**) Rise Time FallTime Turn-on Delay Turn-off Delay

VSS ≤ 7V Vss > 7V Vil = 1.5V 2.3V ≤ VIH ≤ Vss - 0.6V VSS ≤ 7V Vss > 7V VinhL = 1.5V 2.3V ≤ Vinh H ≤ Vss - 0.6V Io = -1A Io = 1A 0.1 0.9 0.5 0.5 to to Vi Vi 0.9 Vo (*) 0.1 Vo (*) to 0.5 Vo (*) to 0.5 Vo (*)

V V µA µA V V µA µA V V V ns ns ns ns

See figure 1 Referred to L293E

TRUTH TABLE
Vi (each channel) H L H L Vo H L o X() o X() Vinh (∞) H H L L

(*)High output impedance (**) Relative to the considerate channel

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L293B - L293E
Figure 1 : Switching Timers

Figure 2 : Saturation voltage versus Output Current

Figure 3 : Source Saturation Voltage versus Ambient Temperature

Figure 4 : Sink Saturation Voltage versus Ambient Temperature

Figure 5 : Quiescent Logic Supply Current versus Logic Supply Voltage

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L293B -L293E
Figure 6 : Output Voltage versus Input Voltage Figure 7 : Output Voltage versus Inhibit Voltage

APPLICATION INFORMATION Figure 8 : DC Motor Controls (with connection to ground and to the supply voltage) Figure 9 : Bidirectional DC Motor Control

Vinh H H L

A H L X Run

M1 Fast Motor Stop Free Running Motor Stop H = High

B H L X Run

M2 Fast Motor Stop Free Running Motor Stop...
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