
PIN FUNCTIONS
(referto the blockdiagram)
MW.15
1;15
PowerSO
2;19
Name
Function
Sense A; Sense B
Between this pin and ground isconnected 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 statedisables 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
2;3
4;5
Out 1; Out 2
4
6
V
S
5;7
6;11
7;9
8;14
Input1; Input 2
EnableA; EnableB
8
9
1,10,11,20
12
GND
VSS
10; 12
13; 14
13;15
16;17
Input3; Input 4
Out 3; Out 4
–
3;18
N.C.
ELECTRICAL CHARACTERISTICS
(V
S
= 42V;V
SS
= 5V, T
j
= 25
°
C; unlessotherwise specified)
Symbol
V
S
V
SS
I
S
Parameter
Test Conditions
Operative Condition
Min.
V
IH
+2.5
4.5
Typ.
Max.
46
7
22
70
4
36
12
6
1.5
Unit
V
V
mA
mA
mA
mA
mA
mA
V
Supply Voltage (pin 4)
Logic SupplyVoltage (pin 9)
Quiescent Supply Current (pin 4)
5
13
50
V
en
= H; I
L
= 0
V
i
= L
V
i
= H
V
i
= X
V
i
= L
V
i
= H
V
i
= X
V
en
= L
I
SS
Quiescent Current from V
SS
(pin 9) V
en
= H; I
L
= 0
24
7
V
en
= L
V
iL
Input Low Voltage
(pins 5, 7, 10, 12)
Input High Voltage
(pins 5, 7, 10, 12)
Low Voltage Input Current
(pins 5, 7, 10, 12)
High Voltage Input Current
(pins 5, 7, 10, 12)
Enable Low Voltage (pins 6, 11)
Enable High Voltage (pins 6, 11)
Low Voltage Enable Current
(pins 6, 11)
High Voltage Enable Current
(pins 6, 11)
V
CEsat(H)
Source Saturation Voltage
–0.3
V
iH
2.3
VSS
V
I
iL
V
i
= L
–10
μ
A
I
iH
Vi = H
≤
V
SS
–0.6V
30
100
μ
A
V
en
= L
V
en
= H
I
en
= L
–0.3
2.3
1.5
V
SS
–10
V
V
μ
A
V
en
= L
I
en
= H
V
en
= H
≤
V
SS
–0.6V
30
100
μ
A
I
L
= 1A
I
L
= 2A
I
L
= 1A
I
L
= 2A
I
L
= 1A
I
L
= 2A
0.95
1.35
2
1.2
1.7
1.7
2.7
1.6
2.3
3.2
4.9
2
V
V
V
V
V
V
V
V
CEsat(L)
Sink SaturationVoltage
(5)
(5)
(5)
(5)
0.85
V
CEsat
TotalDrop
1.80
V
sens
SensingVoltage (pins 1, 15)
–1 (1)
L298
3/13