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PDF L239B Data sheet ( Hoja de datos )
| Número de pieza | L239B | |
| Descripción | PUSH-PULL FOUR CHANNEL DRIVERS | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de L239B (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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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
DESCRIPTION
The L293B and L293E are quad push-pull drivers
capableof delivering output currents to 1A per chan-
nel. Each channel is controlledby 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 16 and 20-pin
plastic DIPs respectively ; both use the four center
pins to conduct heat to the printed circuit board.
ORDERING NUMBER : L293B
POWERDIP (16 + 2+ 2)
ORDERING NUMBER : L293E
PIN CONNECTIONS
DIP16 - L293B
POWERDIP (16+2+2) - L293E
April 1993
1/12
1 page  
Figure 1 : Switching Timers
L293B - L293E
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
5/12
5 Page 
POWERDIP (16+2+2) PACKAGE MECHANICAL DATA
Dimensions
Min.
Millimeters
Typ.
Max.
a1 0.51
B 0.85
1.4
b 0.5
b1 0.38
0.5
D 24.8
E 8.8
e 2.54
e3 22.86
F 7.1
i 5.1
L 3.3
Z 1.27
Min.
0.020
0.033
0.015
L293B - L293E
Inches
Typ.
0.020
0.346
0.100
0.900
0.130
Max.
0.055
0.020
0.976
0.280
0.201
0.050
b
Z
20
1
B
e3
e
Z
D
11
10
b1
E
11/12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet L239B.PDF ] | |
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