1/13
L9348
September 2013
SUPPLY VOLTAGE RANGE: 4.8 TO 18V
OUTPUT VOLTAGE UP TO 40V
OUTPUT VOLTAGE CLAMP DURING
RECIRCULATION OF INDUCTIVE LOADS
OUTPUT CURRENT CAPABILITY 2 X 5A AND
2 X 3A
LOW POWER DISSIPATION DURING
RECIRCULATION OF INDUCTIVE LOADS BY
INTEGRATED FREE WHEELING DIODES
(3A-DRIVERS ONLY)
LOW ON-RESISTANCE 2 X 0.2
, 2 X 0.35
(TYP.)
OUTPUT SHORT CIRCUIT CURRENT
PROTECTION
REAL TIME DIAGNOSTIC FUNCTIONS
OVERTEMPERATURE SHUTDOWN
SIGNAL- AND POWER-GROUND-LOSS
SHUTDOWN
3.3V CMOS COMPATIBLE INPUTS AND
STATUS
DESCRIPTION
The L9348 is a monolithic integrated quad low side
driver realized in advanced Multipower-BCD technol-
ogy. It is intended to drive inductive loads (relays,
electromagnetic valves) in automotive and industrial
applications.
PowerSO-36 BARE DIE
ORDERING NUMBERS:
L9348 L9348-DIE1
QUAD LOW SIDE DRIVER
Figure 1. Block Diagram
VS
+
VREG
=
Voltage Regulator
V
CC
V
DD
V
S
V
REG
GL
TSD
SCP
OL
V
S
FAIL
1
C 166kHz
PWRES
CHANNEL1
EN
PWRES
V
DD
PWRES C 166kHz
V
S
EN
IN1
ST1
IN2
ST2
ENA
GND
99AT0073
PGND2
Q2
PGND1
Q1
V
DD
EN
Diagnostic
CHANNEL2
PWRES
C 166kHz EN
V
REG
FB
GL
TSD
SCP
OL
V
S
FAIL
1
C 166kHz
PWRES
CHANNEL3
EN
IN3
ST3
PGND3
Q3
V
DD
EN
Diagnostic
D3
IN4
ST4
CHANNEL4
PWRES
C 166kHz EN
PGND4
Q4
D4
5A - DRIVER
3A - DRIVER
L9348
2/13
Figure 2. Pin Connection
Table 1. Pin Description
Pin Function
1, 18,
19, 36
N.C. (GND)
2, 3 PGND3 Power Ground Channel 3
4, 5 Q3 Power Output Channel 3 (3A switch)
6, 7 D3 Recirculation Diode Channel 3
8, 9 Q1 Power Output Channel 1 (5A switch)
10, 11 Q2 Power Output Channel 2 (5A switch)
12, 13 D4 Recirculation Diode Channel 4
14, 15 Q4 Power Output Channel 4 (3A switch)
16, 17 PGND4 Power Ground Channel 4
20 ST4 Status Output Channel 4
21 IN2 Control Input Channel 2
22 IN4 Control Input Channel 4
23 ST2 Status Output Channel 2
24 ENA Enable
25, 26 PGND2 Power Ground Channel 2
27 GND Signal Ground
28 VS Supply Voltage
29 N.C. Not Connected
30, 31 PGND1 Power Output Channel 3
32 ST1 Status Output Channel 1
33 IN3 Control Input Channel 3
34 IN1 Control Input Channel 1
36
N.C.
35
ST3
IN1
34
IN3
33
32
ST1
31
30
29
N.C.
VS
28
GND
27
26
25
ENA
24
23
ST2
IN4
22
IN2
21
20
ST4
N.C.
19
N.C.
1
PGND3
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
N.C.
99AT0074
Q3
D3
Q1
Q2
D4
Q4
PGND4
PGND1
PGND2
3/13
L9348
Table 2. Thermal Data
Table 3. Absolute Maximum Ratings
The absolute maximum ratings are the limiting values for this device. Damage may occur if this device is
subjected to conditions which are beyond these values.
Note: Human Body Model according to MIL883C. The device withstands ST1 class level.
Table 4. Operating Range.
Symbol Parameter Test Conditions
Values
Unit
Min. Typ. Max.
T
j
Junction temperature -40 150 °C
T
jc
Junction temperature during
clamping (life time)
t = 30min
t = 15min
175
190
°C
°C
T
stg
Storage temperature -55 150 °C
R
th j-case
Thermal resistance junction to
case
C/W
Symbol Parameter Test Conditions Value Unit
Voltages
V
S
Supply voltage range -0.3 to 40 V
V
Q
, V
D
max. static Output voltage 40 V
V
IN
, V
EN
Input voltage range
(IN1 to IN4, EN)
|I
I
| < 10mA -1.5 to 6 V
V
ST
Status output voltage range |I
I
| < 1mA -0.3 to 6 V
V
DRmax
max. Reverse breakdown
voltage free wheeling diodes
D3, D4
I
R
= 100 A
55 V
Currents
I
Q 1/2
Output current at reversal
supply for Q1, Q2
-4 A
I
Q 3/4
Output current at reversal
supply for Q3, Q4
-2 A
I
ST
Status output current range -1 to 1 mA
E
Q1/2
max. Discharging energy for
inductive loads per channel
Q1, Q2
T
j
= 25°C 50 mJ
T
j
= 150°C 30 mJ
I
FDmax
max. load current free
wheeling diodes
t < 5ms 3 A
ESD Protection
Supply and Signal pins versus GND 2kV
Output pins (Q
X
, D
X
) versus common ground (=short of
SGND with all PGND)
4kV
Symbol Parameter Test Conditions
Values
Unit
Min. Typ. Max.
V
S
Supply voltage 4.8 18 V
T
j
Junction temperature -40 150 °C

L9348-TR

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Gate Drivers QUAD Lo SIDE DRIVER
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet