ST L9386 User Manual
Dual intelligent power low side switch
Features
■ Multipower BCD technology
■ Dual power low side driver with 2 x 5 A
■ Low R
■ Internal output clamping diodes V
inductive recirculation
■ Limited output voltage slew rate for low EMI
■ µP compatible enable and input
■ Wide operating supply voltage range 4.5 V to
45 V
■ Real time diagnostic functions:
– Output shorted to GND
– Output shorted to V
– Open load
– Load bypass
– Over temperature
■ Device protection functions:
– Overload disable
– Reverse battery up to -16 V @ V
– Thermal shutdown
Table 1. Device summary
typically 200 mΩ @ TJ = 25 °C
DSON
SS
= 50 V for
FB
S
L9386
SO20
Description
The L9386 is a monolithic integrated dual low side
driver realized in an advanced Multipower BCD
mixed technology.
It is especially intended to drive valves in
automotive environment. Its inputs are µP
compatible for easy driving. Particular care has
been taken to protect the device against failures,
to avoid electro-magnetic interferences and to
offer extensive real time diagnostic.
Part number Order code Package Packing
L9386 L9386MD SO20 (12+4+4) Tube
July 2008 Rev 3 1/14
www.st.com
14
Contents L9386
Contents
1 Block and pins connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4 Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2/14
L9386 Block and pins connection diagrams
1 Block and pins connection diagrams
Figure 1. Block diagram
IN1
DIAG1
EN
Output
Diagnostic
Control
Control
R
QS
IN2
DIAG2
Channel 2
Figure 2. Pins connection (top view)
Channel 1
Overtemp
Delay
Timer
Overload
Openload
GND
OUT1
VS
OUT2
R
O
IN1
DIAG2
OUT2
GND
GND
GND
GND
N.C.
EN
VS
1
2
3
4
5
6
7
8
9
10
IN2
20
DIAG1
19
OUT1
18
GND
17
GND
16
GND
15
GND
14
13
N.C.
N.C.
12
11
N.C.
3/14
Electrical specifications L9386
2 Electrical specifications
2.1 Absolute maximum ratings
Table 2. Absolute maximum ratings (no damage or latch)
Symbol Parameter Value Unit
V
DC supply voltage -16 to 45 V
SDC
Transient supply voltage (t ≤ 500 ms) 60 V
V
STR
,EN Input voltage (| ≤ | 10 mA |) -1.5 to 6 V
V
IN
V
Diagnostic DC output voltage (| ≤ | 50 mA |) -0.3 to 16 V
DDC
DC output voltage 45 V
V
ODC
Transient output voltage (RL ≥ 4 Ω) 60 V
V
OTR
I
Output load current internal limited
O
Reverse output current limited by load -4 A
I
OR
EO
T
jEO
T
T
stg
Switch-off energy for inductive loads
(t
= 250 µs, T = 5 ms)
EO
50 mJ
Junction temperature during switch-off Σt = 30 min 175 °C
Junction temperature -40 to +150 °C
j
Storage temperature -55 to +150 °C
2.2 Thermal data
Table 3. Thermal data
Symbol Parameter Value Unit
T
Thermal disable junction temperature threshold 160 to 190 °C
jDIS
R
Thermal resistance junction to pins 14 °C/W
th j-pins
4/14
L9386 Electrical specifications
2.3 Electrical characteristics
Table 4. Electrical characteristics
(The electrical characteristics are valid within the below defined operative range, unless
otherwise specified.)
Symbol Parameter Test condition Min. Typ. Max. Unit
V
V
T
IS
SB
IS DC supply current
VD
ID
LE
ID
VO
ΔVO
UV1,2
IO
UC
IO
OC
V
OCL
S
ON,OFF
R
IO
R
DSON
Board supply voltage 4.5 12 32 V
S
Stabilized diagnostic output
D
voltage
Junction temperature -40 150 °C
j
(1)
Static standby supply current
Diagnostic output low voltage
L
Diagnostic output leakage
current
Diagnostic output current
capability
Open load voltage threshold VEN = X, VIN = L
UV
Open load difference voltage
threshold
Open load current threshold
(2)
VEN = L, VO ≤ VOuv
(1)
(2)
VEN = VIN = H
(1)
ID = 2 mA
(2)
ID = 1 mA
= 0 V or VS = open;
V
S
= 5.5 V Tj ≤ 125 °C
V
D
VD ≤ 16 V DIAG = L 2 6 30
(1)
VEN = X, V
≥ VOC ≥ VOUV
V
S
= output voltage of other
VO
C
IN1,2
= L
channel
(2)
(3)
VEN = VIN = H
(2)
-0.3 5 16 V
0.73 1.5
1.3
0.35 0.5 V
0.1 2 mA
0.51
xVS
VO
0.9V
VO
0.7V
100
-
C
-
C
0.55
xVS
-
VO
C
1.25V
VO
-
C
1.25V
320 480
20
Over load current threshold b) 5 7 A
Output voltage during clamping IOCL ≥ 100mA 45 52 60 V
Output (fall, rise) slew rate
Internal output pull down
resistor
Output on resistance
(3)
see Figure 4 200 1500 3200 V/ms
= L 10 20 40 KΩ
V
EN
V
> 9.5 V IO = 2 A
S
= 25 °C
T
j
200 300
Tj = 150 °C
15
5
15
0.59
xVS
VO
1.6V
VO
1.8V
500
mA
mA
mA
V
-
C
V
-
C
mA
mΩ
V
(EN,IN)L
V
(EN,IN)H
|IEN, IN| ≤ 10 mA
Logic input low voltage
(1)
(2)
-1.5
-1.5
1
0.5
Logic input high voltage 2.2 5.5 V
5/14
V
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