L9351 [STMICROELECTRONICS]
L9349DIE1;
| 型号： | L9351 |
| 厂家： | 
ST |
| 描述： | L9349DIE1 外围驱动器 驱动程序和接口 接口集成电路 局域网 |
| 文件： | 总6页 (文件大小：82K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
L9351
HIGH SIDE DRIVER
ADVANCE DATA
.
.
.
.
LOW SATURATION VOLTAGE
TTL COMPATIBLE INPUT
WIDE SUPPLY VOLTAGE
VERY LOW QUIESCENT CURRENT
(30mA max)
NO EXTERNAL COMPONENTS
INTERNAL RECIRCULATION PATH FOR
FAST DECAY OF INDUCTIVE LOAD CUR-
RENT
.
.
.
.
SHORT CIRCUIT PROTECTION
FAILSAFE OPERATION : OUTPUT IS OFF IF
THE LOGIC INPUT IS LEFT OPEN
Pentawatt
ORDERING NUMBER : L9351
DESCRIPTION
The L9351 is a monolithic integrated circuit desi-
gned to drive groundedresistive, inductive or mixed
loads from the power supplypositive side. Very low
standby current (30mA max.) and internally imple-
mented protectionsagainst load dump and reverse
voltages make the device very useful in automotive
applications. No external componentsare required
because the output recirculation clamping zener is
included in the chip. This zener can withstand a re-
circulation peak current of 550mA on a 80mH/25Ω
load.
The device is self-protected against overtempera-
ture, overvoltage and overcurrent conditions. The
L9351 operatesover the full battery voltage range,
from 4.5V (cold cranking) up to 24V (jump starting).
The L9351 withstands revers battery conditions(-
13V) and supply voltage transients up to 80V limit-
ing the maximum output transistor VEC to70V by an
internalzener.ON andOFFdelaytimesof 25µs max
inanyoutputstatus,includingrecirculating situation,
allow PWM use of L9351.
BLOCK DIAGRAM
October 1992
1/6
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
L9351
PIN CONNECTION (top view)
Note : Pin 3 must be left open or connected to ground.
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VS
D.C. Supply Voltage
D.C. Reverse Supply Voltage
Load Dump: 5ms ≤ trise ≤ 10ms
24
–13
60
V
V
V
τf Fall Time Constant = 100ms, Rsource ≥ 0.5Ω
Low Energy Spikes: Rsource ≥ 10Ω, trise = 1µs,
±85
V
V
tf = 2ms, fr Repetition Frequency = 0.2Hz
Vi
IO
Input Voltage
–0.3 to 7
Internally Limited
17.1
Output Current
Ptot
Total Power Dissipation at Tcase = 90°C
Junction and Storage Temperature
W
Tj, Tstg
–55 to 150
°C
THERMAL DATA
Symbol
Parameter
Value
Unit
Rth j-amb Thermal Resistance Junction-ambient
Rth j-case Thermal Resistance Junction-case
Max.
Max.
80
3.5
°C/W
°C/W
2/6
L9351
ELECTRICAL CHARACTERISTICS
(VS = 14.4V, – 40°C ≤ Tj ≤ + 125°C unless otherwise specified).
Symbol
VS
Parameter
Operating Supply Voltage
Input Voltage High
Input Voltage Low
Test Conditions
4.5 < VS < 24
0.8 < VI < 5.5V
Min.
4.5
Typ.
Max.
Unit
V
24
VIH
VIL
2.0
V
1
0.8
40
V
II
Input Current
µA
µA
IPL
Output Leakage Current
VO = 0V
VS = 24V
140
VI < 0.8V
Vsat
Output Saturation Voltage
IO = 125mAVS = 4.5V
IO = 225mAVS = 14.4V
IO = 550mAVS = 14.4V
0.5
0.5
0.7
V
V
V
ISC
IQ
Output Short Circuit Current
Quiescent Current
0.6
1.5
A
VI > 2V
30
mA
µA
V
VI < 0.8V Stand-by Condition
100
150
– 24
VZO
Negative Output Zener Voltage RL = 25Ω
L = 80mH
– 36
– 30
on VI Transition from ”1” to ”0”
Ton
Toff
Turn ON Delay
Turn OFF Delay
Resistive Load RL = 25Ω,
Tj = 25°C (fig.2)
20
25
µs
µs
Figure 1 : Typical Automotive Application Circuit.
3/6
L9351
Figure 2 : Resistive Load.
Figure 3 : Inductive Load.
4/6
L9351
PENTAWATT PACKAGE MECHANICAL DATA
mm
inch
TYP.
DIM.
MIN.
TYP.
MAX.
4.8
MIN.
MAX.
A
C
0.189
0.054
0.110
0.053
0.022
0.041
0.055
0.142
0.276
0.409
0.409
1.37
2.8
D
2.4
1.2
0.35
0.8
1
0.094
0.047
0.014
0.031
0.039
0.126
0.260
D1
E
1.35
0.55
1.05
1.4
F
F1
G
3.4
6.8
0.134
0.268
G1
H2
H3
L
10.4
10.4
10.05
0.396
17.85
15.75
21.4
0.703
0.620
0.843
0.886
L1
L2
L3
L5
L6
L7
M
22.5
2.6
15.1
6
3
0.102
0.594
0.236
0.118
0.622
0.260
15.8
6.6
4.5
4
0.177
0.157
M1
Dia
3.65
3.85
0.144
0.152
L
L1
L2
L3
L5
Dia.
L7
L6
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. Specifica-
tions mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information pre-
viously 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
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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6/6
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