Datasheet L9351 Datasheet (SGS Thomson Microelectronics)

. LOWSATURATIONVOLTAGE

.TTL COMPATIBLEINPUT

.WIDE SUPPLYVOLTAGE

.VERYLOW QUIESCENTCURRENT

(30mA max)

.NO EXTERNAL COMPONENTS

.INTERNAL RECIRCULATION PATH FOR

FAST DECAY OF INDUCTIVE LOAD CUR­RENT

.SHORT CIRCUIT PROTECTION

.FAILSAFE OPERATION : OUTPUT IS OFF IF

THELOGIC INPUTIS LEFTOPEN

DES CRIP TI ON

The L9351 is a monolithic integrated circuit desi­gnedto drivegroundedresistive,inductiveor mixed
loadsfromthe powersupplypositive side.Very low
standbycurrent (30mA max.) and internally imple­mentedprotectionsagainstload dumpandreverse
voltagesmakethe deviceveryusefulin automotive
applications.No externalcomponentsare required
becausethe outputrecirculationclampingzener is
includedin thechip. This zenercan withstanda re­circulation peakcurrentof 550mAon a 80mH/25Ω
load.

L9351

HIGHSIDE DRIVER

ADVANCE DATA

Pentawatt

ORDERING NUMBER : L9351

The device is self-protectedagainst overtempera­ture, overvoltage and overcurrent conditions. The
L9351operatesover thefull battery voltage range,
from4.5V (coldcranking)upto 24V (jumpstarting).
TheL9351 withstands revers battery conditions(­13V)and supplyvoltage transientsup to 80Vlimit­ingthemaximum outputtransistorV
internalzener.ONandOFFdelaytimesof25µsmax
inanyoutputstatus,includingrecirculatingsituation,
allowPWM useof L9351.

to70V byan

EC

BLOCK DIAGRAM

October1992

Thisis advanced informationon a new product now in development or undergoing evaluation.Details are subject to changewithoutnotice.

1/6

L9351

PIN CO NNE CTI O N (top view)

Note : P i n 3 mus t be left op en or connected to ground.

ABSOLUTEMAXIMUM RATINGS

Symbol Parameter Value Unit

V

D.C. Supply Voltage

S

D.C. Reverse Supply Voltage
Load Dump: 5ms ≤ trise ≤ 10ms
τf Fall Time Constant = 100ms, Rsource ≥ 0.5Ω

24

–13

60

V
V
V

Low Energy Spikes: Rsource ≥ 10Ω,t

rise

=1µs,

±85

tf = 2ms, fr Repetition Frequency = 0.2Hz

Input Voltage –0.3 to 7 V

i

Output Current Internally Limited

O

Total Power Dissipation at T

tot

=90°C 17.1 W

case

Junction and Storage Temperature –55 to 150 °C

P

T

j,Tstg

V
I

THERMAL DATA

Symbol Parameter Value Unit

R

th j-amb

R

th j-case

Thermal Resistance Junction-ambient Max.
Thermal Resistance Junction-case Max.

80

3.5

V

°C/W
°C/W

2/6

ELECTRICALCHARACTERISTICS

= 14.4V, – 40°C ≤ Tj≤ + 125°C unlessotherwisespecified).

(V

S

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

S

V

IH

V

IL

I

I

I

PL

V

sat

I

SC

I

Q

V

ZO

T

on

T

off

Operating Supply Voltage 4.5 24 V
Input Voltage High 4.5 < VS< 24 2.0 V
Input Voltage Low 1 0.8 V
Input Current 0.8 < VI< 5.5V 40 µA
Output Leakage Current VO=0V VS= 24V

V

< 0.8V

I

140 µA

Output Saturation Voltage IO= 125mAVS= 4.5V 0.5 V

= 225mAVS= 14.4V 0.5 V

I

O

= 550mAVS= 14.4V 0.7 V

I

O

Output Short Circuit Current 0.6 1.5 A
Quiescent Current VI>2V 30 mA

< 0.8V Stand-by Condition 100 150 µA

V

I

Negative Output Zener Voltage RL=25Ω L = 80mH

Transition from ”1”to ”0”

on V

I

Turn ON Delay Resistive Load RL=25Ω,

=25°C (fig.2)

T

Turn OFF Delay 25 µs

j

–36 –30 –24 V

20 µs

L9351

Figure1 : TypicalAutomotiveApplicationCircuit.

3/6

L9351

Figure 2 : ResistiveLoad.

Figure 3 : InductiveLoad.

4/6

PENTAWATT PACKAGE MECHANICAL DATA

L9351

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

mm inch

A 4.8 0.189
C 1.37 0.054
D 2.4 2.8 0.094 0.110

D1 1.2 1.35 0.047 0.053

E 0.35 0.55 0.014 0.022
F 0.8 1.05 0.031 0.041

F1 1 1.4 0.039 0.055

G 3.4 0.126 0.134 0.142

G1 6.8 0.260 0.268 0.276

H2 10.4 0.409
H3 10.05 10.4 0.396 0.409

L 17.85 0.703
L1 15.75 0.620
L2 21.4 0.843
L3 22.5 0.886
L5 2.6 3 0.102 0.118
L6 15.1 15.8 0.594 0.622
L7 6 6.6 0.236 0.260

M 4.5 0.177
M1 4 0.157
Dia 3.65 3.85 0.144 0.152

A

H3

L

L1

C

D1

L5

Dia.

L7

L6

L2
L3

D

F1

H2

E

MM1

G1

G

F

5/6

L9351

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for
the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its
use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifica­tions mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information pre­viously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of SGS-THOMSON Microelectronics.

 1994 SGS-THOMSON Microelectronics - All Rights Reserved

HEPTAWATT is a Trademark of SGS-THOMSON Microelectronics

Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore-

SGS-THOMSON Microelectronics GROUP OF COMPANIES

Spain - Sweden - Switzerland - Taiwan - Thaliand - United Kingdom - U.S.A.

6/6