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L9332
Quad intelligent power low side switch
Features

Quad power low side driver with 3 A output current capability Low RDSON typically 200 m and 300 m @ Tj = 25 C Internal output clamping structures with VFB = 50 V for fast inductive load current re circulation Limited output voltage slew rate for low EMI Protected P 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 VS - Open load detection in ON and OFF condition - Overtemperature detection Device protection functions: - Overload disable - Selective thermal shutdown - Signal- and Power-Ground-loss shutdown Device summary
Order code L9332(1) L9332-DIE1 Package PowerSO-20 Die Packing Tube - Die

PowerSO-20
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 P compatible. Particular care has been taken to protect the device against failures, to avoid electromagnetic interferences and to offer extensive real time diagnostic.
Table 1.
1. Only for evaluation.
March 2008
Rev 2
1/17
www.st.com 1
Contents
L9332
Contents
1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 3 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pad description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 4.2 4.3 4.4 4.5 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 6 7
Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2/17
L9332
List of tables
List of tables
Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pad coordinates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3/17
List of figures
L9332
List of figures
Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Block circuit diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pad position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 tEO clamping time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Output slope (resistive load for testing) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Timing (tDOL, tDIOU). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 PowerSO-20 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4/17
L9332
Block diagram
1
1.1
Block diagram
Block diagram
Figure 1. Block circuit diagram
IN1 D1 EN
Channel 1
OUT1
VS
52V Output Control IN4 R Delay Time Overtemp OUT4
Q D4 Diagnostic Control
S
Overload
Openload Channel 4
IN2 D2
Channel 2
OUT2
IN3 D3
Channel 3
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 OUT1 D1 IN4 VS NC IN3 D2 OUT2 PGND
05UG32_26
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
PGND OUT4 D4 IN1 EN GND IN2 D3 OUT3 PGND
PowerSO-20 package (only for engineering samples)
Table 2.
Pin #. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Pin description
Pin name GND Out1 D1 IN4 VS NC IN3 D2 Out2 GND GND Out3 D3 IN2 GND EN IN1 D4 Out4 GND Power ground Output 1 (3 A) Diagnostic 1 Input 4 Supply voltage Not connected Input 3 Diagnostic 2 Output 2 (3 A) Power ground Power ground Output 3 (3 A) Diagnostic 3 Input 2 Signal ground Common enable Input 1 Diagnostic 4 Output 4 (3 A) Power ground Function
6/17
L9332
Pad description
3
Pad description
Figure 3. Pad position
OUT4 D4 IN1 EN GND IN2 D3 OUT3
PG4
PG1
D1 OUT1
IN4
VS
IN3
D2 OUT2
Table 3.
Pin # 1 2 3 4 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Pad coordinates
Pad name PG1 Out1 D1 IN4 VS IN3 D2 Out2 PG2 PG3 Out3 D3 IN2 GND EN IN1 D4 Out4 PG4 Description Power ground Output 1 (3 A) Diagnostic 1 Input 4 Supply voltage Input 3 Diagnostic 2 Output 2 (3 A) Power ground Power ground Output 3 (3 A) Diagnostic 3 Input 2 Signal ground Common enable Input 1 Diagnostic 4 Output 4 (3 A) Power ground Size 510*150 510*150 150 *150 150 *150 150 *150 150 *150 150 *150 510 *150 510 *150 430 *150 430 *150 150 *150 150 *150 150 *150 150 *150 150 *150 150 *150 430 *150 430*150 X -136 -1219 -1093 -1093 -1093 -1093 -1093 -1219 -138 624 1195 1181 1181 1181 1181 1181 1181 1196 624 Y 1846 1152 662 452 242 -446 -656 -1148 -1842 -1842 -1064 -557 -347 -137 156 365 575 1067 1846
PG2
PG3
7/17
Electrical specifications
L9332
4
4.1
Electrical specifications
Thermal data
Table 4.
Symbol RTH(j-c)
Thermal data
Parameter Thermal resistance junction to case for Power SO-20 Value 3 Unit C/W
4.2
Absolute maximum ratings
Table 5.
Symbol VS VSP
dVS/dt
Absolute maximum ratings
Parameter DC supply voltage Supply voltage pulse (duration <200 ms) Supply voltage slope Input voltage Diagnostic DC output voltage DC output voltage DC output current out Reverse output current Switch-off energy for inductive loads GND potential difference t 4800 h t 1200 h t 160 h t 50 h tEO = 250 s T = 5ms
I I
Conditions
Value -0.3 to 32 -0.3 to 45 10
Unit V V V/s V V V A A mJ mJ V C C C C C
VIN, EN VD VODC IO IOR EO1, 2 EO3, 4 VGND
10 mA 50 mA
-1.5 to 6 -0.3 to 16 -0.3 to 45 3 -3 50 30 0.3 -40 to 145 145 to 160 160 to 170 170 to 175 -40 to 175
Tj
Junction temperature
Tstg
Storage temperature
Note:
For diagnostic output (Dx Pins), maximum supply voltage during Latch-up = 20V
4.3
ESD protection
Table 6.
Symbol VO Vs, IN EN D
ESD protection
Parameter Outputs test voltage All other pins Test conditions Versus GND + PG shorted Versus GND Value 3.75 2 Unit kV kV
Note:
Tested according to JEDEC (Norm: JESD22-A114C.01).
8/17
L9332
Electrical specifications
4.4
Electrical characteristics
VS = 4.5 to 32 V; -40 C Tj1 175 C, unless other-wise specified. Function is guaranteed until thermal shut down threshold;
Table 7.
Symbol
Electrical characteristics
Values Tj1 Parameter Test conditions Min. Typ. Max. Unit
Supply IVS VRES DC supply current off Reset Voltage 1.5 5 15 4.5 mA V
Outputs Out 1 - 4 VZ RDSON 1, 2 Output on resistance RDSON 3, 4 Z-diode clamping voltage IOCL 200 mA Tj = 25 C Tj = 150 C Tj = 175 C Tj = 25 C Tj = 150 C Tj = 175 C Tj = 140 C Vout = 20 V -40 C < Tj 175 C Vout = 20 V IOLE Output leakage Tj = 140 C VS = 32 V; Vout = 4 V Tj = 140 C VS = 8 V; Vout = 4 V -40 C < Tj 175 C VS = 8 V; Vout = 4 V S Output slope Io = 1 A; Figure 5 0.5 -50 -5 45 200 60 300 500 600 450 750 900 3 36 -5 2.5 25 4 V m
300
m
A A A A A V/s
Inputs IN1-4, EN VIN,EN L VIN,EN H VEN,IN hys IIN IEN Logic input/enable low voltage Logic input/enable high voltage Logic input hysteresis Input sink current Enable sink current VIN > 1 V (1) IN, EN 2.0 50 5 5 100 20 20 40 40 1.0 V V mV A A
9/17
Electrical specifications Table 7.
Symbol
L9332
Electrical characteristics (continued)
Values Tj1 Parameter Test conditions Min. Typ. Max. Unit
Protection and diagnostic functions VOUV VOUV hys IOUC Output open load voltage threshold Output open load voltage hysteresis Output open load current threshold VEN = VIN = 2 V; VS = 6.5 to 16 V 0.525 x VS 10 30 3 185 205 20 1 0.1 2.5 4 0.6 80 0.55 x VS 0.575 x VS 250 140 8 225 V mV mA A C K V V
IOOC 1, 2, 3, 4 Over load current threshold TSD Tsd-hys VPGL VSGL Thermal shut down TSD hysteresis Power-GND-loss threshold Signal-GND-loss threshold
Diagnostic outputs D1 - D4 VDL RDon Diagnostic output low voltage Output resistor Tj = 140 C VD = 14 V -40 C < Tj 175 C VD = 14 V 2 28 ID 2 mA 50 0.1 1.0 500 2 10 50 V A A mA
IDLE
Diagnostic output leakage current
IDCL Timing tON tOFF
Diagnostic output current limitation
Output delay on time Output delay off time Delta off on time (channel 1 +2)
(2)
Figure 5
1 10 10 20 10 4
25 50 30 40 30 50
s s s s s s
Figure 5 < 150 C
toff-ton Delta off on time (channel 3 +4) tD Diagnostic delay time
> 150 C -40 C < Tj 175 C
(2)
Figure 5 & 6
1. Open pins (EN, IN) are detected as low 2. VS = 9 to 16V IOUC IO IOOC
10/17
L9332
Electrical specifications
4.5
Table 8.
Diagnostic
Diagnostic
Conditions EN L Normal function H H Open load off Open load on VOtyp < 0.55 xVS IOmin < 30 mA Tjtyp < 205 C IOmin > 3 A channel off channel on L H H X H X L H IN X L H X L H X H L H H OUT off off on off on off off off off DIAG. L L H H L L L H L no no tD tD tD tD IN=low IN=low IN= low Filter Reset
Overtemperature Over load SGND or PGND loss SGND or PGND loss
11/17
Circuit description
L9332
5
Circuit description
The L9332 is a quad low side driver for inductive loads like valves in automotive environment. The internal pull down current sources at the ENable and INput pins assure in case of open input conditions that the device is switched off. An output voltage slope limitation for du/dt is implemented to reduce the EMI. This is valid up to the clamping voltage VZ. This active flyback voltage limitation clamps the output voltage during the flyback phase. It is alowed to connect two power stages from one device in parallel if external free wheeling diodes are used in the application. For the Ron calculation the parallel resistivity is expected. The nominal current is 70% of the sum of the nominal currents of the used channels. Each driver is protected against short circuit at VOUT < 32 V and thermal overload. In short circuit condition the output will be disabled after a short delay time tD. The thermal disable for TJ > 175C of the output will be reset if the junction temperature decreases about 20 C below the disable threshold temperature. The overtemperature, overload and groundloss information is stored until IN is low. For the real time error diagnosis the voltage and the current of the outputs are compared with internal fixed values VOUV for OFF and IOUC for ON conditions to recognize open load in OFF and ON conditions. The diagnostic output level in connection with different ENable and INput conditions allows to recognize different fail states, like overtemp, short to VS, short to GND, bypass to GND and disconnected load (see diagnostic table). The diagnostic output is protected against short circuit. Exceeding the over load current threshold IOOC, the output current will be limited internally during the diagnostic overload delay switch-off time tD. The device complies the ISO pulses imposed to the supply voltage of the valves without any failures of the functionality. Therefore some diagnostic functions are internal filtered. The diagnostic table shows the corresponding filter time for each detected signal. Figure 4.
VO1-4 VZ
tEO clamping time
VS tEO T
05UG32_27
t
12/17
L9332 Figure 5. Output slope (resistive load for testing)
VIN VEN 5V VH VL VOUT
Circuit description
t tON tOFF
VS 0.8VS VOUV 0.2VS VDIAG tf tD VD 0.5VD tr t
05UG32_30
Figure 6.
IN
Timing (tDOL, tDIOU)
VON
IOOC IOUC
VD tD
05UG32_32
Open Load Current
tD
13/17
14/17
Circuit description
Figure 7.
VD
VIN
IOU
IOO
VEN
VOU
Open Load Current Normal Operation ON Open Load Current
Open Load Current Normal Operation ON Open Load Voltage Normal Operation OFF Open Load Voltage
05UG32_34
Logic diagram
Latched Over. Load Diagnostic Latch Reset
L9332
L9332
Package information
6
Package information
In order to meet environmental requirements, ST (also) offers these devices in ECOPACK(R) packages. ECOPACK(R) packages are lead-free. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. Figure 8. PowerSO-20 mechanical data and package dimensions
DIM. A a1 a2 a3 b c D (1) D1 (2) E e e3 E1 (1) E2 E3 G H h L N S T 10 0.8 5.8 0 15.5 10.9 0 0.4 0.23 15.8 9.4 13.9 1.27 11.43 11.1 2.9 6.2 0.1 15.9 1.1 1.1 0.031 8(typ.) 8(max. ) 0.394 0.228 0.000 0.610 0.429 0.1 mm MIN. TYP. MAX. 3.6 0.3 3.3 0.1 0.53 0.32 16 9.8 14.5 0.000 0.016 0.009 0.622 0.370 0.547 0.050 0.450 0.437 0.114 0.244 0.004 0.626 0.043 0.043 JEDEC MO-166 0.004 MIN. inch TYP. MAX. 0.142 0.012 0.130 0.004 0.021 0.013 0.630 0.386 0.570
Weight: 1.9gr
OUTLINE AND MECHANICAL DATA
(1) "D and E1" do not include mold flash or protusions. - Mold flash or protusions shall not exceed 0.15mm (0.006") - Critical dimensions: "E", "G" and "a3". (2) For subcontractors, the limit is the one quoted in jedec MO-166
PowerSO-20
N
N a2 b e A
R
c DETAIL B a1 E DETAIL A
DETAIL A e3 H
lead
D a3 DETAIL B
20 11
Gage Plane 0.35
slug
-C-
S E2 T E1 BOTTOM VIEW
L
SEATING PLANE G C
(COPLANARITY)
E3
1 1 0
h x 45
PSO20MEC
D1
0056635 I
15/17
Revision history
L9332
7
Revision history
Table 9.
Date 14-Feb-2008 28-Mar-2008
Document revision history
Revision 1 2 Initial release. Updated the IOLE, IDLE and toff-ton parameters on Table 7: Electrical characteristics. Changes
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L9332
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