Datat

L293D
L293DD

®

PUSH-PULL FOUR CHANNEL DRIVER WITH DIODES
600mA OUTPUT CURRENT CAPABILITY
PER CHANNEL
1.2A PEAK OUTPUT CURRENT (non repetitive) PER CHANNEL
ENABLE FACILITY
OVERTEMPERATURE PROTECTION
LOGICAL "0" INPUT VOLTAGE UP TO 1.5 V
(HIGH NOISE IMMUNITY)
INTERNAL CLAMP DIODES
DESCRIPTION
The Device is a monolithic integrated high voltage, high current four channel driverdesigned to
accept standard DTL or TTL logic levels and drive
inductive loads (such as relays solenoides, DC
and stepping motors) and switching power transistors.
To simplify use as two bridges each pair of channels is equipped with an enable input. A separate
supply input is provided for the logic, allowing operation at a lower voltage and internal clamp diodes are included.
This device issuitable for use in switching applications at frequencies up to 5 kHz.

SO(12+4+4)

Powerdip (12+2+2)

ORDERING NUMBERS:
L293DD

L293D

The L293D is assembled in a 16 lead plastic
packaage which has 4 center pins connected together and used for heatsinking
The L293DD is assembled in a 20 lead surface
mount which has 8 center pins connected together and used for heatsinking.

BLOCKDIAGRAM

July 2003

1/7

L293D - L293DD
ABSOLUTE MAXIMUM RATINGS
Symbol

Parameter

Value

Unit

VS

Supply Voltage

36

V

VSS
Vi
Ven

Logic Supply Voltage
Input Voltage

36
7

V
V

Enable Voltage
Peak Output Current (100 µs non repetitive)

7
1.2

V
A

Io
Ptot
Tstg, Tj

Total Power Dissipation at Tpins = 90 °C

4

W

– 40 to 150

Storage andJunction Temperature

°C

PIN CONNECTIONS (Top view)

Powerdip(12+2+2)

SO(12+4+4)

THERMAL DATA
Symbol

Decription

Rth j-pins
Rth j-amb

Thermal Resistance Junction-pins
Thermal Resistance junction-ambient

Rth j-case

Thermal Resistance Junction-case

(*) With 6sq. cm on board heatsink.

2/7

DIP

SO

Unit

max.
max.

–
80

14
50 (*)

°C/W
°C/Wmax.

14

–

L293D - L293DD
ELECTRICAL CHARACTERISTICS (for each channel, VS = 24 V, VSS = 5 V, Tamb = 25 °C, unless
otherwise specified)
Symbol
VS
VSS
IS

ISS

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Supply Voltage (pin 10)

VSS

36

V

Logic Supply Voltage (pin 20)
Total Quiescent Supply Current
(pin 10)

4.5

V
mA

Total Quiescent LogicSupply
Current (pin 20)

Vi = L ; IO = 0 ; Ven = H

2

36
6

Vi = H ; IO = 0 ; Ven = H

16

24

mA

44

4
60

mA
mA

Ven = L
Vi = L ; IO = 0 ; Ven = H

VIL

Input High Voltage (pin 2, 9,
12, 19)

16

22

mA

16
– 0.3

24
1.5

mA
V

2.3
2.3

VSS
7

V
V

– 10

µA

100

µA

– 0.3

1.5

V

2.3
2.3

VSS
7

V
V

– 100

µA± 10

µA

Input Low Voltage (pin 2, 9, 12,
19)

VIH

Vi = H ; IO = 0 ; Ven = H
Ven = L

VSS ≤ 7 V
VSS > 7 V

IIL

Low Voltage Input Current (pin
2, 9, 12, 19)

VIL = 1.5 V

IIH

High Voltage Input Current (pin
2, 9, 12, 19)

2.3 V ≤ VIH ≤ VSS – 0.6 V

30

Ven L

Enable Low Voltage
(pin 1, 11)

Ven H

Enable High Voltage
(pin 1, 11)

VSS ≤ 7 V
VSS > 7 VIen L

Low Voltage Enable Current
(pin 1, 11)

Ven L = 1.5 V

Ien H

High Voltage Enable Current
(pin 1, 11)

2.3 V ≤ Ven H ≤ VSS – 0.6 V

VCE(sat)H

Source Output Saturation
Voltage (pins 3, 8, 13, 18)

IO = – 0.6 A

1.4

1.8

V

VCE(sat)L

Sink Output Saturation Voltage
(pins 3, 8, 13, 18)

IO = + 0.6 A

1.2

1.8

V

VF

Clamp Diode Forward VoltageIO = 600nA

1.3

V

tr

Rise Time (*)

0.1 to 0.9 VO

250

ns

tf

Fall Time (*)
Turn-on Delay (*)
Turn-off Delay (*)

0.9 to 0.1 VO
0.5 Vi to 0.5 VO
0.5 Vi to 0.5 VO

250
750
200

ns
ns
ns

ton
toff

– 30

(*) See fig. 1.

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L293D - L293DD
Figure 1: Switching Times

TRUTH TABLE (one channel)
Input

Enable (*)

Output

H
L
H
L

H
H...