L298 STMicroelectronics, L298 Datasheet - Page 4

• Manufacturer Part Number: L298
• Description: DUAL FULL-BRIDGE DRIVER
• Manufacturer: STMicroelectronics

L298
ELECTRICAL CHARACTERISTICS (continued)
1) 1)Sensing voltage can be –1 V for t 50 sec; in steady state V
2) See fig. 2.
3) See fig. 4.
4) The load must be a pure resistor.
Figure 1 : Typical Saturation Voltage vs. Output
4/13
Symbol
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
fc (V
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
(V
(V
(V
(V
(V
(V
(V
(V
(V
(V
(V
(V
(V
(V
(V
(V
en
en
en
en
en
en
en
en
i
i
i
i
i
i
i
i
i
)
)
)
)
)
)
)
)
)
) Source Current Turn-off Delay
) Source Current Fall Time
) Source Current Turn-on Delay
) Source Current Rise Time
) Sink Current Turn-off Delay
) Sink Current Fall Time
) Sink Current Turn-on Delay
) Sink Current Rise Time
Source Current Turn-off Delay
Source Current Fall Time
Source Current Turn-on Delay
Source Current Rise Time
Sink Current Turn-off Delay
Sink Current Fall Time
Sink Current Turn-on Delay
Sink Current Rise Time
Commutation Frequency
Current.
Parameter
0.5 V
0.9 I
0.5 V
0.1 I
0.5 V
0.9 I
0.5 V
0.1 I
I
0.5 V
0.9 I
0.5 V
0.1 I
0.5 V
0.9 I
0.5 V
0.1 I
L
= 2A
L
L
L
L
L
L
L
L
i
i
i
i
en
en
en
en
to 0.9 I
to 0.1 I
to 0.9 I
to 0.9 I
to 0.1 I
to 0.9 I
to 0.1 I
to 0.9 I
to 0.1 I
to 0.9 I
to 0.1 I
to 0.9 I
to 0.9 I
to 0.1 I
to 0.9 I
to 0.9 I
sens
Test Co nditions
min
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
Figure 2 : Switching Times Test Circuits.
Note : For INPUT Switching, set EN = H
– 0.5 V.
(2); (4)
(2); (4)
(3); (4)
(3); (4)
(2); (4)
(2); (4)
(3); (4)
(3); (4)
(2); (4)
(2); (4)
(3); (4)
(3); (4)
(2); (4)
(2); (4)
(3); (4)
(3); (4)
For ENABLESwitching, set IN = H
Min .
Typ .
0.25
0.35
0.25
1.5
0.2
0.7
0.7
1.6
0.2
0.3
0.4
2.2
0.1
25
2
3
1
Max.
40
Unit
KHz
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s