L293B STMicroelectronics, L293B Datasheet

IC DRIVER PUSH-PULL 4CH 16-DIP

L293B

Manufacturer Part Number
L293B
Description
IC DRIVER PUSH-PULL 4CH 16-DIP
Manufacturer
STMicroelectronics
Type
Half Bridger
Datasheet

Specifications of L293B

Input Type
Non-Inverting
Number Of Outputs
4
Current - Output / Channel
1A
Current - Peak Output
2A
Voltage - Supply
4.5 V ~ 36 V
Operating Temperature
-40°C ~ 150°C
Mounting Type
Through Hole
Package / Case
16-DIP (0.300", 7.62mm)
Operating Supply Voltage
4.5 V to 36 V
Mounting Style
Through Hole
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
On-state Resistance
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-1389-5

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DESCRIPTION
The L293B and L293E are quad push-pull drivers
capable of delivering output currents to 1A per
channel. Each channel is controlled by 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 in-
put 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
PIN CONNECTION (Top view)
July 2003
OUTPUT CURRENT 1A PER CHANNEL
PEAK OUTPUT CURRENT 2A PER CHANNEL
(non repetitive)
INHIBIT FACILITY
HIGH NOISE IMMUNITY
SEPARATE LOGIC SUPPLY
OVERTEMPERATURE PROTECTION
DIP16 - L293B
PUSH-PULL FOUR CHANNEL DRIVERS
sensing resistors, for switchmode control.
The L293B and L293E are package in 16 and 20-
pin plastic DIPs respectively ; both use the four
center pins to conduct heat to the printed circuit
board.
POWERDIP (16+2+2) - L293E
L293B
DIP16
ORDERING NUMBERS:
POWERDIP(16+2+2)
L293E
L293B
L293E
1/12

Related parts for L293B

L293B Summary of contents

Page 1

... July 2003 PUSH-PULL FOUR CHANNEL DRIVERS DIP16 L293B sensing resistors, for switchmode control. The L293B and L293E are package in 16 and 20- pin plastic DIPs respectively ; both use the four center pins to conduct heat to the printed circuit board. POWERDIP (16+2+2) - L293E L293B ...

Page 2

... L293E L293B BLOCK DIAGRAMS 2/12 DIP16 - L293B POWERDIP (16+2+2) - L293E ...

Page 3

... Supply Voltage s V Logic Supply Voltage ss V Input Voltage i V Inhibit Voltage inh I Peak Output Current (non repetitive t = 5ms) out P Total Power Dissipation at T tot Storage and Junction Temperature stg j Parameter = 80°C ground-pins L293E L293B Value Unit –40 to +150 o C 3/12 ...

Page 4

... L293E L293B THERMAL DATA Symbol R Thermal Resistance Junction-case th j-case R Thermal Resistance Junction-ambient th j-amb ELECTRICAL CHARACTERISTCS Symbol Parameter V Supply Voltage s V Logic Supply Voltage ss I Total Quiescent Supply Current s I Total Quiescent Logic Supply ss Current V Input Low Voltage iL Input High Voltage V iH ...

Page 5

... 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 L293E L293B 5/12 ...

Page 6

... L293E L293B Figure 6. Output Voltage versus Input Voltage Figure 7. Output Voltage versus Inhibit Voltage 6/12 APPLICATION INFORMATION Figure 8. DC Motor Controls (with connection to ground and to the supply voltage inh H H Fast Motor Stop Run Free Running X Motor Stop L = Low H = High X = Don’t Care Figure 9 ...

Page 7

... Figure 10. Bipolar Stepping Motor Control L293E L293B 7/12 ...

Page 8

... L293E L293B Figure 11. Stepping Motor Driver with Phase Current Control and Short Circuit Protection 8/12 ...

Page 9

... MOUNTING INSTRUCTIONS The R of the L293B and the L293E can be reduced by soldering the GND pins to a suitable copper th j-amb area of the printed circuit board as shown in figure external heatsink (figure 13). During soldering the pins temperature must not exceed 260°C and the soldering time must not be longer than 12 seconds ...

Page 10

... L293E L293B mm DIM. MIN. TYP. MAX. a1 0.51 0.020 B 0.77 1.65 0.030 b 0 8.5 e 2.54 e3 17.78 F 7.1 I 5.1 L 3.3 Z 1.27 10/12 inch MIN. TYP. MAX. 0.065 0.020 0.010 0.787 0.335 0.100 0.700 0.280 0.201 0.130 0.050 OUTLINE AND MECHANICAL DATA DIP16 ...

Page 11

... MAX. MIN. a1 0.51 0.020 B 0.85 1.40 0.033 b 0.50 b1 0.38 0.50 0.015 D 24.80 E 8.80 e 2.54 e3 22.86 F 7.10 I 5.10 L 3.30 Z 1.27 inch MECHANICAL DATA TYP. MAX. 0.055 0.020 0.020 0.976 0.346 0.100 0.900 0.280 0.201 0.130 0.050 L293E L293B OUTLINE AND Powerdip 20 11/12 ...

Page 12

... L293E L293B Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice ...

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