L298 Просмотр технического описания (PDF) - STMicroelectronics
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L298 Datasheet PDF : 14 Pages
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L298
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
T1 (Vi) Source Current Turn-off Delay
T2 (Vi) Source Current Fall Time
T3 (Vi) Source Current Turn-on Delay
T4 (Vi) Source Current Rise Time
T5 (Vi) Sink Current Turn-off Delay
T6 (Vi) Sink Current Fall Time
T7 (Vi) Sink Current Turn-on Delay
T8 (Vi) Sink Current Rise Time
fc (Vi) Commutation Frequency
T1 (Ven) Source Current Turn-off Delay
T2 (Ven) Source Current Fall Time
T3 (Ven) Source Current Turn-on Delay
T4 (Ven) Source Current Rise Time
T5 (Ven) Sink Current Turn-off Delay
T6 (Ven) Sink Current Fall Time
T7 (Ven) Sink Current Turn-on Delay
T8 (Ven) Sink Current Rise Time
Test Conditions
0.5 Vi to 0.9 IL (2); (4)
0.9 IL to 0.1 IL (2); (4)
0.5 Vi to 0.1 IL (2); (4)
0.1 IL to 0.9 IL (2); (4)
0.5 Vi to 0.9 IL (3); (4)
0.9 IL to 0.1 IL (3); (4)
0.5 Vi to 0.9 IL (3); (4)
0.1 IL to 0.9 IL (3); (4)
IL = 2A
0.5 Ven to 0.9 IL (2); (4)
0.9 IL to 0.1 IL (2); (4)
0.5 Ven to 0.1 IL (2); (4)
0.1 IL to 0.9 IL (2); (4)
0.5 Ven to 0.9 IL (3); (4)
0.9 IL to 0.1 IL (3); (4)
0.5 Ven to 0.9 IL (3); (4)
0.1 IL to 0.9 IL (3); (4)
1) 1)Sensing voltage can be –1 V for t ≤ 50 µsec; in steady state Vsens min ≥ – 0.5 V.
2) See fig. 2.
3) See fig. 4.
4) The load must be a pure resistor.
Min.
Typ .
1.5
0.2
2
0.7
0.7
0.25
1.6
0.2
25
3
1
0.3
0.4
2.2
0.35
0.25
0.1
Max.
40
Unit
µs
µs
µs
µs
µs
µs
µs
µs
KHz
µs
µs
µs
µs
µs
µs
µs
µs
Figure 1 : Typical Saturation Voltage vs. Output
Current.
Figure 2 : Switching Times Test Circuits.
4/13
Note : For INPUT Switching, set EN = H
For ENABLESwitching, set IN = H
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