View L9374XP_4132913.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

L9374
Four channel valve driver
Data Brief
Features

Four low-side output drivers with protection diagnostic - 2 PWM controlled channels (0.2 typ) - 2 current controlled channels with 6% accuracy (0.3 typ) All outputs with 35V Zener clamp Programmable channel timer Clock monitor Integrated recirculation diodes Serial Peripheral Interface with 16bits, up to 5MHz with diagnosis Battery compatible supply voltage Detailed Load diagnosis - Over load protection - Open Load - Under-current - Under Voltage - Temperature Warning and Shutdown - Power or Signal GND loss - Freewheeling diode loss - Silent valve driver test
PowerSO-36
PowerSSO-36
are stored in the PWM and in the Counter Configuration Register respectively. The PWM Controller translates the programmed digital duty cycle value in a PWM signal which controls the output. For the current controlled channels the target current value is programmed. It is also possible to program two different target currents. The target current is compared with the real load current. The output duty cycle is then calculated with an Arithmetic Logic Unit. As base for the calculation a load model is used respecting the resistivity of the load, the supply voltage as well as the internal recirculation path. To check the plausibility of the current controller all measured and calculated values are available and accessible via SPI. All channels are equipped with a load Diagnostic. This allows to detect an open load in off condition as well as an under current in on condition. The power stage is protected against over current and over temperature. A weak connection in power ground or in the recirculation path is monitored. All monitored functions can be read out in a serial diagnostic protocol dedicated for each channel via SPI.. Table 1.
Order code L9374 L9374XP
Description
The L9374 is a four channel low side driver with integrated recirculation diodes. The switching of the channels is programmable via a SPI (Serial Peripheral Interface). The main time base is given by an external clock via CLKin. The Clock Unit monitors this external clock and provides the system clock for all timings. A Synchronization Unit is used to monitor the SPI communication and provides a sync signal for the channel activation. The Output Duty Cycle for each channel can be programmed individually and will be activated by the Set Point Unit. Is possible to program two output Duty Cycles per channel with a block of 16 SPI commands as well as an individual Duration Time for each channel actuation. Both information
Device summary
Package PowerSO-36 (slug down) PowerSSO-36 (exp. pad) Packing Tube Tube
July 2007
Rev 2
1/10
www.st.com 10
For further information contact your local STMicroelectronics sales office.
1
Power-on Reset Current Detection Q3 DAC PWM Unit PGND3/4
Configure Register
PWM controlled valve PWM controlled valve
Current regulated valve Current regulated valve
Set Point Unit Under Current PWM Controller
Open Load
Q1
CLKIN
Clock Unit
Diagnose Register CLK/SYNC/SPI/Test-Modi / Standard CLK/SYNC/SPI/Test-Modi / Standard Error Detection Error Detection
PGND1/2 D2/D4
EN
Synchronization Unit
Channel 4
Q4 PGND3/4
SPICLK MOSI MISO SPICS SPI
Channel 2 Q2 PGND1/2
Current regulated valve
Channel 1
PWM controlled valve
Signal / Power GND loss
Communication
SGND
Count Configuration Register
PWM Configuration Register
2/10
Block diagram
Figure 1.
Ignition switch Vbatt Reverse polarity protection Channel 3 Under Current Open Load D1/D3 Safety switch
Vs
Block diagram
Block diagram
Supply Voltage
L9374
L9374
Pins description
2
Pins description
Figure 2. PowerSSO36 pins connection (top view)
NC Q3 Q3 D1/D3 D1/D3 Q1 Q1 PGND1 PGND12 PGND2 Q2 Q2 NC D4/D2 D4/D2 Q4 Q4 NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
D06AT546A
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
PGND3 NC NC NC NC SGND EN SPICS MISO MOSI SPICLK CLKIN VS NC NC NC NC PGND4
Figure 3.
PowerSO36 pins connection (top view)
PGND Q3 Q3 D1/D3 D1/D3 Q1 Q1 PGND1 PGND12 PGND2 Q2 Q2 NC D4/D2 D4/D2 Q4 Q4 PGND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
AC00419
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
PGND3 NC NC NC NC SGND EN SPICS MISO MOSI SPICLK CLKIN VS NC NC NC NC PGND4
3/10
Pins description Table 2.
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
L9374 Pins description
PwSSO36 N.C. Q3 Q3 D1/D3 D1/D3 Q1 Q1 PGND1 PGND12 PGND2 Q2 Q2 N.C. D4/D2 D4/D2 Q4 Q4 N.C. PGND4 N.C. N.C. N.C. N.C. VS CLKIN SPICLK MOSI MISO SPICS EN SGND N.C. N.C. N.C. N.C. PGND3 PwSO36 PGND Q3 Q3 D1/D3 D1/D3 Q1 Q1 PGND1 PGND12 PGND2 Q2 Q2 N.C. D4/D2 D4/D2 Q4 Q4 PGND PGND4 N.C. N.C. N.C. N.C. VS CLKIN SPICLK MOSI MISO SPICS EN SGND N.C. N.C. N.C. N.C. PGND3 Description Not connected/Power ground Output. Output. Free wheeling diode. Free wheeling diode. Output. Output. Power ground of the output driver 1& 2. Power ground of the output driver 1& 2. Power ground of the output driver 1& 2. Output. Output. Not connected. Free wheeling diode. Free wheeling diode. Output. Output. Not connected/Power ground Power ground of the output driver 4. Not connected. Not connected. Not connected. Not connected. Supply pin Input for precise clock. SPI communication CLocK. Master Out Slave In for SPI communication. Master In Slave Out for SPI communication. SPI Chip Select. Enable Signal ground. Not connected. Not connected. Not connected. Not connected. Power ground of the output driver 3.
4/10
L9374
Absolute maximum ratings
3
Absolute maximum ratings
Table 3.
Symbol Vs VDx VQx VEN VSPICLK VSPICS VMOSI VMISO VCLKIN IQ1; 2 IQ3; 4 IEN_CL ISPICLK_
CL
Absolute maximum ratings
Parameter Supply voltage Freewheeling diode voltage Output voltage Enable voltage SPI clock voltage SPI chip select voltage SPI MOSI voltage SPI MISO voltage SPI clock input voltage Output current at reversal voltage -2 A Min -0.3 -0.3 -0.3 Max 38 35 35 Unit V V V
-0.3
6
V
-4
A
ISPICS_C Input clamping currents (static) Input clamping currents (dynamic) L IMOSI_CL ICLKIN_C
L
-3 -10
+3 +10
mA
Definition:
Current from outside into the L9374-> " + " Current from L9374 towards external components -> " - "
Warning:
Transients beyond this limit will cause currents into ESD structures which must be limited externally to 10 mA (maximum energy to be dissipated: 2 mJ).
5/10
ESD susceptibility
L9374
4
4.1
ESD susceptibility
HBM
ESD susceptibility HBM according to EIA/JESD 22-A 114B otherwise defined. Table 4. HBM
Pin All Pins Output pins DX; QX; PGND12, PGND3, PGND4, LGND and GND are connected together. Condition Min 2 4 Max Unit kV kV
4.2
MM
ESD susceptibility according to EIA/JESD22-A115-A Table 5. MM
Condition All pins Min 250 Max Unit V
Parameter Machine Model (MM)
6/10
L9374
Package informations
5
Package informations
In order to meet environmental requirements, ST offers this device in ECOPACK(R) package. This package has a Lead-free second level interconnect. 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 4. PowerSO-36 (slug down) mechanical data and package dimensions
DIM. A a1 a2 a3 b c D D1 E E1 E2 E3 e e3 G H h L N s 0.8 0 15.50 5.80 0.65 11.05 0.10 15.90 0.6102 1.10 1.10 0.0315 10 (max) 8 (max) 0 0.22 0.23 15.80 9.40 13.90 10.90 0.10 mm MIN. TYP. MAX. 3.60 0.30 3.30 0.10 0.38 0.32 9.80 14.5 2.90 6.20 0.2283 0.0256 0.4350 0.0039 0.6260 0.0433 0.0433 0.0087 0.0091 0.3701 0.5472 0.0039 MIN. inch TYP. MAX. 0.1417 0.0118 0.1299 0.0039 0.0150 0.0126 0.6299 0.3858 0.5709 0.4370 0.1142 0.2441
OUTLINE AND MECHANICAL DATA
16.00 0.6220
11.10 0.4291
PowerSO-36
Note: "D and E1" do not include mold flash or protusions. - Mold flash or protusions shall not exceed 0.15mm (0.006") - Critical dimensions are "a3", "E" and "G".
0096119 C
7/10
Package informations Figure 5.
L9374 PowerSSO-36 (exposed pad) mechanical data and package dimensions
DIM. A A2 a1 b c D (1) E (1) e e3 F G G1 H h L M N O Q S T U X Y MIN. 2.15 2.15 0 0.18 0.23 10.10 7.4 0.50 8.50 2.3 0.10 0.06 10.50 0.40 0.85 4.3 10 (max) 1.2 0.8 2.9 3.65 1.0 4.10 6.50 4.70 7.10 0.161 0.256 0.047 0.031 0.114 0.144 0.039 0.185 0.279 mm TYP. MAX. 2.47 2.40 0.075 0.36 0.32 10.50 7.6 MIN. 0.084 0.084 0 0.007 0.009 0.398 0.291 0.020 0.035 0.090 0.004 0.002 0.413 0.016 0.033 0.169 inch TYP. MAX. 0.097 0.094 0.003 0.014 0.012 0.413 0.299
OUTLINE AND MECHANICAL DATA
10.10 0.55
0.398 0.022
(1) "D and E" do not include mold flash or protusions. Mold flash or protusions shall not exceed 0.15mm (0.006") (2) No intrusion allowed inwards the leads. (3) Flash or bleeds on exposed die pad shall not exceed 0.4 mm per side
PowerSSO-36 (exposed pad)
7587131 A
8/10
L9374
Revision history
6
Revision history
Table 6.
Date 4-Jun-2007 31-Jul-2007
Document revision history
Revision 1 2 Initial release. Updated Section 1: Block diagram , Section 2: Pins description and Section 4: ESD susceptibility. Changes
9/10
L9374
Please Read Carefully:
Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST's terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN ST'S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER'S OWN RISK.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
(c) 2007 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com
10/10

▲Up To Search▲

Price & Availability of L9374XP

	To Download L9374XP Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .