SGS Thomson Microelectronics L298HN, L298P, L298N Datasheet



.OPERATINGSUPPLYVOLTAGEUP TO 46 V

.TOTALDC CURRENT UP TO 4 A

.

LOWSATURATIONVOLTAGE

.OVERTEMPERATUREPROTECTION

.

LOGICAL ”0” INPUT VOLTAGE UP TO 1.5 V
(HIGHNOISE IMMUNITY)

L298

DUALFULL-BRIDGE DRIVER

DESCRIPTION

TheL298isan integratedmonolithiccircuitin a 15­lead Multiwatt and PowerSO20 packages. It is a
highvoltage,highcurrentdualfull-bridgedriver de­signedtoacceptstandardTTLlogiclevelsanddrive
inductiveloads such as relays, solenoids, DC and
steppingmotors.Twoenableinputsare providedto
enableordisablethedeviceindependentlyofthein­put signals.The emittersof thelowertransistorsof
each bridgeareconnectedtogetherand the corre­spondingexternalterminalcan beusedforthecon-

BLOCK DIAGRAM

Multiwatt15

ORDERING NUMBERS : L298N (M ultiwatt Vert.)

L298HN (Mult iwat t H oriz .)

L298P (PowerSO20)

nectionofanexternalsensingresistor.Anadditional
supplyinputis providedso that the logicworksat a
lowervoltage.

PowerSO20

Jenuary 2000

1/13

L298

ABSOLUTEMAXIMUM RATINGS

Symbol Parame t er Value Unit

V

V

V

I,Ven

V

P
T

T

stg,Tj

I

sens

Power Supply 50 V

S

LogicSupply Voltage 7 V

SS

Inputand Enable Voltage –0.3 to 7 V
Peak OutputCurrent (each Channel)

O

– Non Repetitive (t = 100µs)
–Repetitive (80% on –20% off; t
–DC Operation

= 10ms)

on

3

2.5
2

Sensing Voltage –1 to 2.3 V

tot TotalPower Dissipation (T

JunctionOperating Temperature –25 to 130 °

op

case

=75°C)

25 W

Storageand JunctionTemperature –40 to 150

A
A
A

C

°C

PIN CONNECTIONS

(top view)

Multiwatt15

TAB CONNECTED TO PIN 8

GND

Sense A

N.C.
Out 1
Out 2

V

S

Input 1

Enable A

Input 2

GND 10

1
2
3
4

PowerSO20

5
6
7
8
9

15
14
13
12
11
10

9
8
7
6
5
4
3
2
1

D95IN239

D95IN240A

20
19
18
17
16
15
14
13
12
11

CURRENT SENSING B
OUTPUT 4
OUTPUT 3
INPUT 4
ENABLE B
INPUT 3
LOGIC SUPPLY VOLTAGE V
GND
INPUT 2
ENABLE A
INPUT 1
SUPPLY VOLTAGE V
OUTPUT 2
OUTPUT 1
CURRENT SENSING A

GND
Sense B
N.C.
Out 4
Out 3
Input 4
Enable B
Input 3
VSS
GND

S

SS

THERMAL DATA

Symbol Parameter PowerSO20 Multiwatt15 Unit

R

th j-case

R

th j-amb

(*) Mountedon aluminumsubstrate

2/13

Thermal Resistance Junction-case Max. – 3
Thermal Resistance Junction-ambient Max. 13 (*) 35 °

°C/W

C/W

PIN FUNCTIONS(referto the block diagram)

MW .15 PowerSO Name Function

1;15 2;19 Sense A; Sense B Between this pin and ground is connected the sense resistorto

control thecurrent of the load.

2;3 4;5 Out 1; Out2 Outputs ofthe Bridge A; the currentthat flows throughthe load

connected between these two pins is monitored at pin 1.

46 V

S

Supply Voltage for the Power Output Stages.
A non-inductive 100nFcapacitor must be connected between this
pin and ground.

5;7 7;9 Input 1; Input 2 TTL CompatibleInputs of the BridgeA.

6;11 8;14 EnableA; Enable B TTL CompatibleEnable Input: theL statedisables the bridge A

(enable A) and/or the bridgeB (enable B).
8 1,10,11,20 GND Ground.
9 12 VSS Supply Voltage forthe Logic Blocks. A100nF capacitor must be

connected between this pin and ground.

10; 12 13;15 Input3; Input 4 TTL CompatibleInputs of the BridgeB.
13; 14 16;17 Out 3; Out 4 Outputs of the BridgeB. The current that flows throughthe load

connected between these two pins is monitored at pin 15.
– 3;18 N.C. NotConnected

ELECTRICALCHARACTERISTICS (VS= 42V; VSS=5V,Tj=25°C;unlessotherwise specified)

L298

Symb o l Parameter Test Co n d ition s Min. Typ. Max. Unit

Supply Voltage(pin 4) Operative Condition VIH+2.5 46 V

V

S

V

Logic SupplyVoltage (pin 9) 4.5 5 7 V

SS

Quiescent SupplyCurrent (pin 4) Ven=H; IL=0 Vi=L

I

S

=L Vi=X 4 mA

V

en

Quiescent Current from VSS(pin 9) Ven=H; IL=0 Vi=L

I

SS

=L Vi=X 6 mA

V

en

Input Low Voltage

V

iL

V

V

i

i

=H

=H

–0.3 1.5 V

13
50

24

7

22
70

36
12

mA
mA

mA
mA

(pins 5, 7, 10, 12)

V

Input High Voltage

iH

2.3 VSS V

(pins 5, 7, 10, 12)

I

Low Voltage Input Current

iL

Vi= L –10

A

µ

(pins 5, 7, 10, 12)

I

High Voltage Input Current

iH

Vi = H≤V

(pins 5, 7, 10, 12)

V

= L EnableLow Voltage (pins 6,11) –0.3 1.5 V

en

= H Enable High Voltage (pins 6, 11) 2.3 V

V

en

=L Low VoltageEnable Current

I

en

Ven= L –10

SS

–0.6V

30 100 µ

SS

A

V

A

µ

(pins 6, 11)

I

=H HighVoltage Enable Current

en

(pins 6, 11)

V

CEsat(H)

V

CEsat(L)

V

V

Source Saturation Voltage IL=1A

Sink SaturationVoltage IL= 1A (5)

TotalDrop IL= 1A (5)

CEsat

SensingVoltage (pins 1, 15) –1 (1) 2 V

sens

=H≤VSS–0.6V

V

en

I

=2A

L

I

= 2A (5)

L

I

= 2A (5)

L

0.95 1.35

0.85 1.2

1.80 3.2

30 100 µ

1.7

2

2.7

1.6

1.7

2.3

4.9

A

V
V

V
V

V
V

3/13

L298

ELECTRICALCHARACTERISTICS (continued)

Symb o l Param et er Test Co n d ition s Min . T yp. Max. U n it

T

) SourceCurrent Turn-off Delay 0.5Vito 0.9IL(2);(4) 1.5

1(Vi

T

) SourceCurrent Fall Time 0.9 ILto 0.1 IL(2);(4) 0.2

2(Vi

) SourceCurrent Turn-on Delay 0.5Vito 0.1IL(2);(4) 2

T

3(Vi

T

) SourceCurrent Rise Time 0.1 ILto 0.9 IL(2);(4) 0.7

4(Vi

T5(Vi) Sink Current Turn-offDelay 0.5Vito 0.9IL(3);(4) 0.7
T6(Vi) Sink Current Fall Time 0.9ILto 0.1 IL(3);(4) 0.25
T7(Vi) Sink Current Turn-onDelay 0.5Vito 0.9IL(3);(4) 1.6
T8(Vi) Sink Current Rise Time 0.1 ILto 0.9 IL(3);(4) 0.2

fc (Vi) Commutation Frequency IL= 2A 25 40 KHz

T

) SourceCurrent Turn-off Delay 0.5Vento 0.9 IL(2); (4) 3

1(Ven

T2(Ven) SourceCurrent Fall Time 0.9 ILto 0.1 IL(2);(4) 1
T3(Ven) SourceCurrent Turn-on Delay 0.5Vento 0.1 IL(2); (4) 0.3
T

) SourceCurrent Rise Time 0.1ILto 0.9 IL(2);(4) 0.4

4(Ven

) Sink Current Turn-off Delay 0.5Vento 0.9 IL(3); (4) 2.2

T

5(Ven

T

) Sink Current Fall Time 0.9 ILto 0.1 IL(3);(4) 0.35

6(Ven

T7(Ven) Sink Current Turn-on Delay 0.5Vento 0.9 IL(3); (4) 0.25
T8(Ven) Sink Current Rise Time 0.1 ILto 0.9 IL(3);(4) 0.1

µs
µ
µs
µ
µ
µ
µ
µs

µs
µ
µs
µ
µs
µ
µ
µ

s

s
s
s
s

s

s

s
s
s

1) 1)Sensingvoltage canbe –1V for t≤50µsec; insteady stateV

2) See fig.2.

3) See fig.4.

4) The loadmust be a pureresistor.

Figure1 : Typical SaturationVoltagevs.Output

Current.

min≥–0.5 V.

sens

Figure2 : SwitchingTimes TestCircuits.

4/13

Note : For INPUT Switching,set EN = H

For ENABLESwitching, set IN = H