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L293B 数据表(PDF) 4 Page - STMicroelectronics

部件名 L293B
功能描述  PUSH-PULL FOUR CHANNEL DRIVERS
PDF  12 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L293B 数据表(HTML) 4 Page - STMicroelectronics

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THERMAL DATA
Symbol
Parameter
Value
Unit
Rth j-case
Thermal Resistance Junction-case
Max.
14
oC/W
Rth j-amb
Thermal Resistance Junction-ambient
Max.
80
oC/W
ELECTRICAL CHARACTERISTICS
For each channel, VS = 24V, VSS = 5V, Tamb =25
oC, unless otherwise specified
Symbol
Parameter
Test Conditions
Min.
TYp.
Max.
Unit
Vs
Supply Voltage
Vss
36
V
Vss
Logic Supply Voltage
4.5
36
V
Is
Total Quiescent Supply Current
Vi =L
Io =0
Vinh =H
Vi =H
Io =0
Vinh =H
Vinh =L
2
16
6
24
4
mA
Iss
Total Quiescent Logic Supply Current
Vi =L
Io =0
Vinh =H
Vi =H
Io =0
Vinh =H
Vinh =L
44
16
16
60
22
24
mA
ViL
Input Low Voltage
-03.
1.5
V
ViH
Input High Voltage
VSS
≤ 7V
Vss >7V
2.3
2.3
Vss
7
V
IiL
Low Voltage Input Current
Vil = 1.5V
-10
µA
IiH
High Voltage Input Current
2.3V
≤ VIH ≤ Vss - 0.6V
30
100
µA
VinhL
Inhibit Low Voltage
-0.3
1.5
V
VinhH
Inhibit High Voltage
VSS
≤ 7V
Vss >7V
2.3
2.3
Vss
7
V
IinhL
Low Voltage Inhibit Current
VinhL = 1.5V
-30
-100
µA
IinhH
High Voltage Inhibit Current
2.3V
≤ VinhH ≤ Vss - 0.6V
±10
µA
VCEsatH
Source Output Saturation Voltage
Io = -1A
1.4
1.8
V
VCEsatL
Sink Output Saturation Voltage
Io = 1A
1.2
1.8
V
VSENS
Sensing Voltage (pins 4, 7, 14, 17) (**)
2
V
tr
Rise Time
0.1 to 0.9 Vo (*)
250
ns
tf
Fall Time
0.9 to 0.1 Vo (*)
250
ns
ton
Turn-on Delay
0.5 Vi to 0.5 Vo (*)
750
ns
toff
Turn-off Delay
0.5 Vi to 0.5 Vo (*)
200
ns
*
See figure 1
**
Referred to L293E
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
Vs
Supply Voltage
36
V
Vss
Logic Supply Voltage
36
V
Vi
Input Voltage
7
V
Vinh
Inhibit Voltage
7
V
Iout
Peak Output Current (non repetitive t = 5ms)
2
A
Ptot
Total Power Dissipation at Tground-pins =80
oC5
W
Tstg,Tj
Storage and Junction Temperature
–40 to +150
oC
TRUTH TABLE
Vi (each channel)
Vo
Vinh
(
∞)
H
L
H
L
H
L
X(
o)
X(
o)
H
H
L
L
(*)
High output impedance
(**) Relative to the considerate channel
L293B - L293E
4/12



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