L298 Просмотр технического описания (PDF) - STMicroelectronics
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L298 Datasheet PDF : 14 Pages
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L298
PIN FUNCTIONS (refer to the block diagram)
MW.15
1;15
2;3
4
5;7
6;11
8
9
10; 12
13; 14
–
Po werSO
2;19
4;5
6
7;9
8;14
1,10,11,20
12
13;15
16;17
3;18
Name
Sense A; Sense B
Out 1; Out 2
VS
Input 1; Input 2
Enable A; Enable B
GND
VSS
Input 3; Input 4
Out 3; Out 4
N.C.
Fun ction
Between this pin and ground is connected the sense resistor to
control the current of the load.
Outputs of the Bridge A; the current that flows through the load
connected between these two pins is monitored at pin 1.
Supply Voltage for the Power Output Stages.
A non-inductive 100nF capacitor must be connected between this
pin and ground.
TTL Compatible Inputs of the Bridge A.
TTL Compatible Enable Input: the L state disables the bridge A
(enable A) and/or the bridge B (enable B).
Ground.
Supply Voltage for the Logic Blocks. A100nF capacitor must be
connected between this pin and ground.
TTL Compatible Inputs of the Bridge B.
Outputs of the Bridge B. The current that flows through the load
connected between these two pins is monitored at pin 15.
Not Connected
ELECTRICAL CHARACTERISTICS (VS = 42V; VSS = 5V, Tj = 25°C; unless otherwise specified)
Symbol
Parameter
Test Conditions
VS Supply Voltage (pin 4)
Operative Condition
VSS Logic Supply Voltage (pin 9)
IS Quiescent Supply Current (pin 4) Ven = H; IL = 0
Ven = L
ISS Quiescent Current from VSS (pin 9) Ven = H; IL = 0
ViL Input Low Voltage
(pins 5, 7, 10, 12)
Ven = L
Vi = L
Vi = H
Vi = X
Vi = L
Vi = H
Vi = X
ViH Input High Voltage
(pins 5, 7, 10, 12)
IiL Low Voltage Input Current
(pins 5, 7, 10, 12)
Vi = L
IiH High Voltage Input Current
(pins 5, 7, 10, 12)
Vi = H ≤ VSS –0.6V
Ven = L
Ven = H
Ien = L
Enable Low Voltage (pins 6, 11)
Enable High Voltage (pins 6, 11)
Low Voltage Enable Current
(pins 6, 11)
Ven = L
Ien = H High Voltage Enable Current
(pins 6, 11)
Ven = H ≤ VSS –0.6V
VCEsat(H) Source Saturation Voltage
VCEsat(L) Sink Saturation Voltage
VCEsat Total Drop
Vsens Sensing Voltage (pins 1, 15)
IL = 1A
IL = 2A
IL = 1A (5)
IL = 2A (5)
IL = 1A (5)
IL = 2A (5)
Min.
VIH +2.5
4.5
Typ .
5
13
50
24
7
–0.3
2.3
30
–0.3
2.3
30
0.95 1.35
2
0.85 1.2
1.7
1.80
–1 (1)
Max.
46
7
22
70
4
36
12
6
1.5
VSS
–10
100
1.5
VSS
–10
100
1.7
2.7
1.6
2.3
3.2
4.9
2
Unit
V
V
mA
mA
mA
mA
mA
mA
V
V
µA
µA
V
V
µA
µA
V
V
V
V
V
V
V
3/13
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