L9349-LF STMicroelectronics, L9349-LF Datasheet

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L9349-LF

Manufacturer Part Number
L9349-LF
Description
IC IPS LOW SIDE QUAD POWERSO20
Manufacturer
STMicroelectronics
Type
Low Sider
Datasheet

Specifications of L9349-LF

Input Type
Non-Inverting
Number Of Outputs
4
On-state Resistance
200 mOhm, 300 mOhm
Current - Output / Channel
3A, 5A
Current - Peak Output
6A, 10A
Voltage - Supply
4.5 V ~ 32 V
Operating Temperature
-40°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
PowerSO-20 Exposed Bottom Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Quantity
Price
Part Number:
L9349-LF
Manufacturer:
ST
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Description
The L9349 is a monolithic IC designed to drive
inductive loads in low side configurations like
hydraulic valves used in ABS systems.
Particular care has been taken to protect the
device against failures, to avoid electromagnetic
interferences and to offer extensive real time
diagnostics.
The internal pull down current source at the
ENable and INput pins assures, that the device is
switched off, in case of open input conditions.
An output voltage slope limitation is implemented
to reduce the EMI.
Table 1.
1. ECOPACK® package (see
September 2008
Four low-side output driver with protection
diagnostics designed as a conventional switch
– 2 channels with 5 A output current
– 2 channels with 3 A output current
Integrated 60 V Zener diodes output clamping
structure
Output slope control
Short circuit protection
Open load detection in ON and OFF condition
Load bypass detection
Overload disable
Signal and power ground loss shutdown
Selective overtemperature shutdown
Electrostatic discharge (ESD) protection
capability and r
capability and r
L9349TR-LF
Order code
Device summary
L9349-LF
ON
ON
= 0.2 Ω typ.
= 0.3 Ω typ.
Section 4: Package
information)
Quad intelligent power low side switch
PowerSO-20
PowerSO-20
Package
Rev 5
The device is equipped with an integrated Zener
diodes clamp for fast inductive load current
recirculation. This structure limits the output
voltage during the recirculation phase to 50V.
The device is self-protected against short circuit
at the outputs and overtemperature.
For the real time error diagnosis, the voltage and
the current of the outputs are compared with
internally fixed thresholds to recognize open load
in OFF and ON conditions.
The output voltages are also compared with each
other in OFF condition with a fixed offset, in order
to recognize load bypasses.
If the over load current threshold is exceeded, the
output current will be limited internally during the
diagnostic overload delay switch-off time.
All four channels are monitored with a status
output. The diagnostic output level in connection
with different enable and input conditions allows it
to recognize the different fail states.
(1)
PowerSO-20
Tape and reel
Packing
L9349-LF
Tray
www.st.com
1/17
1

Related parts for L9349-LF

L9349-LF Summary of contents

Page 1

... All four channels are monitored with a status output. The diagnostic output level in connection with different enable and input conditions allows it to recognize the different fail states. (1) Package PowerSO-20 PowerSO-20 information) Rev 5 L9349-LF PowerSO-20 Packing Tray Tape and reel 1/17 www.st.com 1 ...

Page 2

... Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.3 Electrical characteristics (operating range 3.4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.5 Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.6 Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2/17 L9349-LF ...

Page 3

... L9349-LF List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table 2. Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Table 3. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 4. Thermal data Table 5. Electrical characteristics (operating range Table 6. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table 7. Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Table 8. Corresponding filter time for each detected signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Table 9. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 List of tables 3/17 ...

Page 4

... Pins connection (top view Figure 3. t clamping time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 EO Figure 4. Output slope (resistive load for testing Figure 5. Timing ( DOL DIOU Figure 6. Block diagram - Open load voltage detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 7. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 8. Application circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 9. PowerSO-20 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4/ L9349-LF ...

Page 5

... L9349-LF 1 Block diagram Figure 1. Block diagram IN1 D1 EN IN4 D4 IN2 D2 IN3 D3 00AT0025 Channel 1 Output Control Overtemp R Delay Q S Overload Time Diagnostic Openload Control Channel 4 Channel 2 Channel 3 GND Block diagram OUT1 VS 52V OUT4 R IO OUT2 OUT3 5/17 ...

Page 6

... Power Ground Output 1 (5A) Diagnostic 1 Input 4 Supply Voltage Not Connected Input 3 Diagnostic 2 Output 2 (5A) Power Ground Power Ground Output 3 (3A) Diagnostic 3 Input 2 Signal Ground Common Enable Input 1 Diagnostic 4 Output 4 (3A) Power Ground 20 PGND 19 OUT4 IN1 GND 14 IN2 OUT3 11 PGND Function L9349-LF ...

Page 7

... L9349-LF 3 Electrical specifications 3.1 Absolute maximum ratings Table 3. Absolute maximum ratings Symbol V DC supply voltage S Supply voltage pulse V SP (duration <200ms) ⎪ ⎪ dV /dt Supply voltage slope S V Input voltage IN Diagnostic DC output voltage output voltage ODC I DC output current out 1, 2 O1, 2 ...

Page 8

... T = 150° > 25° 150° > 9. 1.3A O3,4 OCL ≥ I 200mA 45 VS > 9. 0.525 L9349-LF Min. Typ. Max. 4 -40 150 150 T jDIS Values T Values Typ. Max. Min. Max 0.65 1.0 1.5 0 300 200 500 450 300 750 ...

Page 9

... L9349-LF Table 6. Electrical characteristics (continued) = 4.5 to 32V; -40°C ≤ Symbol Parameter V Hysteresis OUV hys 1-4 ΔV Open load difference OUV 1-4, voltage threshold 2-3, 4-1, 3-2 Δ V OUV hys 1- Open load hysteresis 4, 2-3, 4-1, 3-2 Open load current I OUC threshold I Over load current ...

Page 10

... Omin 1,2 I > 3A Omin 3,4 channel off channel on , unless otherwise specified.) Values T Values T j1 Typ. Max. Min OUT L X off H L off off H L off off H H off X L off H H off L9349-LF j2 Unit Max. μ μ s μ s μ DIAG ...

Page 11

... L9349-LF 3.6 Circuit description The L9349 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 ...

Page 12

... Electrical specifications Figure 3. t clamping time EO V O1-4 V OCL V S 00AT0027 Figure 4. Output slope (resistive load for testing OUT V S 0.85V S V OUV 0.15V S V DIAG V D 0.5V D 00AT0030 12/ OFF H-L Diag L9349- ...

Page 13

... L9349-LF Figure 5. Timing ( OOC I OUC V D 00AT0032 Figure 6. Block diagram - Open load voltage detection IN 1 00AT0033 , t ) DOL DIOU t Open Load Current DIOU V Batt OUT1 OUT4 (OUT2) (OUT3 55% Enable R S Latch UV1 Electrical specifications t filt t DOL Latch Q VO UV4 4 13/17 ...

Page 14

... I/O GND 00AT0035 14/17 IN1 Channel Output Control IN4 Overtemp R Delay Q S Time D4 Diagnostic Control Channel 4 IN2 Channel 2 D2 IN3 Channel 3 D3 GND L9349-LF OUT1 Z VALVE VS +45V 52V OUT4 Z V VALVE Batt R IO Overload Openload OUT2 Z VALVE OUT3 Z VALVE KL15 KL30 ...

Page 15

... L9349-LF 4 Package information In order to meet environmental requirements, ST (also) offers these devices in ECOPACK packages. ECOPACK 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 trademark. ECOPACK specifications are available at: www.st.com. ...

Page 16

... Revision history 5 Revision history Table 9. Document revision history Date 20-Sep-2002 09-Sep-2008 16/17 Revision 4 Initial release. Document reformatted. Updated feature and description on page 1. 5 Added Table 1: Device summary on page Updated Table 3: Absolute maximum ratings on page L9349-LF Changes 1. 7. ...

Page 17

... L9349-LF 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. ...

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