ST L9332 User Manual
Quad intelligent power low side switch
Features
■ Quad power low side driver with 3 A output
current capability
■ Low R
@ T
= 25 °C
j
■ Internal output clamping structures with
V
= 50 V for fast inductive load current re
FB
circulation
■ Limited output voltage slew rate for low EMI
■ Protected µP compatible enable and input
■ Wide operating supply voltage range 4.5 V to
32 V
■ Real time diagnostic functions:
– Output shorted to GND
– Output shorted to V
– Open load detection in ON and OFF
condition
– Overtemperature detection
■ Device protection functions:
– Overload disable
– Selective thermal shutdown
– Signal- and Power-Ground-loss shutdown
Table 1. Device summary
typically 200 mΩ and 300 mΩ
DSON
S
L9332
PowerSO-20
Die
Description
The L9332 is a monolithic integrated quad low
side driver realized in an advanced Multipower
BCD mixed technology. The device is intended to
drive valves in automotive environment.
The inputs are µP compatible. Particular care has
been taken to protect the device against failures,
to avoid electromagnetic interferences and to offer
extensive real time diagnostic.
Order code Package Packing
(1)
L9332
L9332-DIE1 Die –
1. Only for evaluation.
March 2008 Rev 2 1/17
PowerSO-20 Tube
www.st.com
1
Contents L9332
Contents
1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Pad description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.3 ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.5 Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2/17
L9332 List of tables
List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 3. Pad coordinates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 4. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 5. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 6. ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 7. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 8. Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 9. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3/17
List of figures L9332
List of figures
Figure 1. Block circuit diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. Pad position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 4. t
Figure 5. Output slope (resistive load for testing) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 6. Timing (t
Figure 7. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 8. PowerSO-20 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 15
clamping time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
EO
, t
DOL
). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
DIOU
4/17
L9332 Block diagram
1 Block diagram
1.1 Block diagram
Figure 1. Block circuit diagram
IN1
D1
EN
IN4
D4
IN2
D2
IN3
D3
Output Control
Diagnostic
Control
R
QS
Channel 1
Delay
Time
Channel 4
Channel 2
Channel 3
OUT1
VS
52V
OUT4
Overtemp
Overload
Openload
OUT2
OUT3
05UG32_25A
GND
5/17
Pin description L9332
2 Pin description
Figure 2. Pin connection (top view)
Heat sink connected to pins 1, 10, 11, 20
PGND 1
OUT1 2
D1
IN4 4
VS 5
NC
IN3 7
D2 8
OUT2
PGND 10
05UG32_26
3
6
9
20 PGND
19
OUT4
D418
IN117
16
EN
GND15
IN214
13
D3
OUT312
PGND11
PowerSO-20 package (only for engineering samples)
Table 2. Pin description
Pin #. Pin name Function
1 GND Power ground
2 Out1 Output 1 (3 A)
3 D1 Diagnostic 1
4 IN4 Input 4
5 VS Supply voltage
6 NC Not connected
7 IN3 Input 3
8 D2 Diagnostic 2
9 Out2 Output 2 (3 A)
10 GND Power ground
11 GND Power ground
12 Out3 Output 3 (3 A)
13 D3 Diagnostic 3
14 IN2 Input 2
15 GND Signal ground
16 EN Common enable
17 IN1 Input 1
18 D4 Diagnostic 4
19 Out4 Output 4 (3 A)
20 GND Power ground
6/17
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