This is information on a product in full production.
March 2012 Doc ID 14174 Rev 10 1/25
25
VNI4140K
Quad high-side smart power solid-state relay
Datasheet production data
Features
Output current: 0.7 A per channel
Shorted load protections
Junction overtemperature protection
Case overtemperature protection for thermal
independence of the channels
Thermal case shutdown restart not
simultaneous for the various channels
Protection against loss of ground
Current limitation
Undervoltage shutdown
Open drain diagnostic outputs
3.3 V CMOS/TTL compatible inputs
Fast demagnetization of inductive loads
Conforms to IEC 61131-2
ESD according to IEC 61000-4-2 up to +/-
25 kV
Figure 1. Block diagram
Description
The VNI4140K is a monolithic device made using
STMicroelectronics VIPower technology, intended
for driving four independent resistive or inductive
loads with one side connected to ground. Active
current limitation avoids dropping the system
power supply in case of shorted load. Built-in
thermal shutdown protects the chip from
overtemperature and short-circuit. In overload
condition, channel turns OFF and back ON
automatically so as to maintain junction
temperature between TTSD and TR. If this
condition makes case temperature reach TCSD,
overloaded channel is turned OFF and will
restartonly when case temperature has
decreased down to TCR. In case of more than one
channel in overload, re-start of the overloaded
channels will not be simultaneous, in order to
avoid high peak current from the supply. Non
overloaded channels continue to operate
normally. The open drain diagnostics outputs
indicates overtemperature conditions.
Type Vdemag(1)
1. Per channel.
RDS(on)(1) Iout(1) VCC
VNI4140K VCC-41 V 0.08 0.7 A 41 V
PowerSSO-24
www.st.com
Contents VNI1440K
2/25 Doc ID 14174 Rev 10
Contents
1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Typical application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Switching waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 Pin functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 Package and PC board thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8.1 VNI4140K thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
9 Reverse polarity protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
10 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
11 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
12 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
VNI1440K Pin connection
Doc ID 14174 Rev 10 3/25
1 Pin connection
Figure 2. Pin connection (top view)
Table 1. Pin description
Pin Name Description
Tab TAB Exposed tab internally connected to Vcc
1 Vcc Supply voltage
2 IN1 Channel 1 input 3.3 V CMOS/TTL compatible
3 STAT1 Channel 1 status in open drain configuration
4 IN2 Channel 2 input 3.3 V CMOS/TTL compatible
5 STA2 Channel 2 status in open drain configuration
6 GND Device ground connection
7 STAT3 Channel 3 status in open drain configuration
8 IN3 Channel 3 input 3.3 V CMOS/TTL compatible
9 STAT4 Channel 4 status in open drain configuration
10 IN4 Channel 4 input 3.3 V CMOS/TTL compatible
11 NC
12 NC
13 OUT4 Channel 4 power stage output, internally protected
14 OUT4 Channel 4 power stage output, internally protected
15 OUT4 Channel 4 power stage output, internally protected
16 OUT3 Channel 3 power stage output, internally protected
17 OUT3 Channel 3 power stage output, internally protected
OUT1
OUT1
OUT1
OUT2
OUT2
OUT2
VCC
IN1
STAT1
IN2
STAT2
GND
OUT3
OUT3
OUT3
OUT4
OUT4
OUT4
STAT3
IN3
STAT4
NC
NC
IN4
Pin connection VNI1440K
4/25 Doc ID 14174 Rev 10
Pin Name Description
18 OUT3 Channel 3 power stage output, internally protected
19 OUT2 Channel 2 power stage output, internally protected
20 OUT2 Channel 2 power stage output, internally protected
21 OUT2 Channel 2 power stage output, internally protected
22 OUT1 Channel 1 power stage output, internally protected
23 OUT1 Channel 1 power stage output, internally protected
24 OUT1 Channel 1 power stage output, internally protected
Table 1. Pin description (continued)
VNI1440K Maximum ratings
Doc ID 14174 Rev 10 5/25
2 Maximum ratings
2.1 Thermal data
Table 2. Absolute maximum rating
Symbol Parameter Value Unit
VCC Power supply voltage 41 V
-VCC Reverse supply voltage -0.3 V
IGND DC ground reverse current -250 mA
IOUT Output current (continuos) Internally limited A
IRReverse output current (per channel) -5 A
IIN Input current (per channel) ± 10 mA
VIN Input voltage +VCC V
VSTAT Status pin voltage +VCC V
ISTAT Status pin current ± 10 mA
VESD Electrostatic discharge (R = 1.5 k; C = 100 pF) 2000 V
EAS
Single pulse avalanche energy per channel not
simultaneously 300 mJ
PTOT Power dissipation at Tc = 25 °C Internally limited W
TJJunction operating temperature Internally limited °C
TSTG Storage temperature -55 to 150 °C
Table 3. Thermal data
Symbol Parameter Value Unit
Rth(JC) Thermal resistance junction-case (1)
1. Per channel
Max 2 °C/W
Rth(JA) Thermal resistance junction-ambient Max see Figure 11 °C/W
Electrical characteristics VNI1440K
6/25 Doc ID 14174 Rev 10
3 Electrical characteristics
10.5 V < VCC < 36 V; -25 °C < TJ < 125 °C; unless otherwise specified
VCC = 24 V; -25 °C < TJ < 125 °C, RL = 48 , input rise time < 0.1 µs
Table 4. Power section
Symbol Parameter Test condition Min Typ Max Unit
Vcc Supply voltage 10.5 36 V
RDS(on) On-state resistance IOUT = 0.5 A at TJ = 25 °C
IOUT = 0.5 A
0.080
0.140
Vclamp Is = 20 mA 41 45 52 V
ISSupply current
All channel in OFF state
ON state with VIN = 5 V
(TJ = 125 °C)
250
2.4 4
µA
mA
ILGND
Output current at turn-
off
VCC = VSTAT = VIN =
VGND = 24 V, VOUT = 0 V 1mA
VOUT(OFF)
Off state output
voltage VIN = 0 V and IOUT = 0 A 1 V
IOUT(OFF)
Off state output
current VIN = VOUT = 0 V 0 5 µA
FCP
Charge pump
frequency Channel in ON state (1)
1. To cover EN55022 class A and class B normative.
1450 kHz
Table 5. Switching
Symbol Parameter Min Typ Max Unit
td(ON) Turn on delay - 20 - µs
trRise time - 10 - µs
td(OFF) Turn off - 30 - µs
tfFall time - 8 - µs
dV/dt(ON) Turn on voltage slope - 3 - V/µs
dV/dt(off) Turn off voltage slope - 4 - V/µs
VNI1440K Electrical characteristics
Doc ID 14174 Rev 10 7/25
Table 6. Logical input
Symbol Parameter Test condition Min Typ Max Unit
VIL Input low level voltage 0.8 V
VIH Input high level voltage 2.20 V
VI(HYST)
Input hysteresis
voltage 0.15 V
IIN Input current VIN = 15 V 10
µΑ
VIN = 36 V 210
Table 7. Protection and diagnostic
Symbol Parameter Test condition Min Typ Max Unit
vSTAT
Status voltage
output low ISTAT = 1.6 mA 0.6 V
VUSD
Undervoltage
protection 710.5V
VUSDHYS
Undervoltage
hysteresis 0.4 0.5 V
ILIM
DC short-circuit
current VCC = 24 V; RLOAD < 10 m0.7 1 1.7 A
IPEAK
Maximum DC output
current Dynamic load 1.3 A
Hyst Tracking limits 0.2 A
ILSTAT Status leakage current VCC = VSTAT = 36 V 30 µΑ
TTSD
Junction shutdown
temperature 150 170 190 °C
TR
Junction reset
temperature 135 °C
THIST
Junction thermal
hysteresis 715 °C
TCSD
Case shutdown
temperature 125 130 135 °C
TCR
Case reset
temperature
110 °C
TCHYST
Case thermal
hysteresis 715 °C
Vdemag
Output voltage at
turn-OFF IOUT = 0.5 A; LLOAD >= 1 mH VCC-
41
VCC-
45
VCC-
52 V
Electrical characteristics VNI1440K
8/25 Doc ID 14174 Rev 10
Figure 3. Current and voltage conventions
VNI1440K Truth table
Doc ID 14174 Rev 10 9/25
4 Truth table
5 Typical application circuit
Figure 4. Typical application circuit
Table 8. Truth table
Condition INPUTn OUTPUTn STATUSn
Normal operation L
H
L
H
H
H
Overtemperature L
H
L
L
H
L
Undervoltage L
H
L
L
X
X
Shorted load
(Current limitation)
L
H
L
X
H
H
Typical application circuit VNI1440K
10/25 Doc ID 14174 Rev 10
Figure 5. Thermal behavior
NO
Tj ( i ) > Tt s d
Vi n ( i ) = H
OUT(i) Off
STAT(i) On (L)
Tc > Tc s d
NO
YES
NOYES
Tc > Tc r
YES
NO
Tj(i) > Tjr
YES
STAT(i) Off (H)
OUT(i) On
1)
4)
2)
3)
VNI1440K Switching waveforms
Doc ID 14174 Rev 10 11/25
6 Switching waveforms
Figure 6. Switching waveforms
Pin functions VNI1440K
12/25 Doc ID 14174 Rev 10
7 Pin functions
Figure 7. Input circuit
Figure 8. Status circuit
VNI1440K Pin functions
Doc ID 14174 Rev 10 13/25
Figure 9. Charge pump switching frequency (typical) vs temperature
Freq_CP
800
1000
1200
1400
1600
1800
2000
-50 0 50 100 150 200
temperature("C)
CP_frequency (KHz)
Freq_CP
Package and PC board thermal data VNI1440K
14/25 Doc ID 14174 Rev 10
8 Package and PC board thermal data
8.1 VNI4140K thermal data
Figure 10. VNI4140K PC board
Note: Layout condition of Rth and Zth measurements (PCB: Double layer, Thermal Vias,
FR4 area = 77 mm x 86 mm, PCB thickness=1.6 mm, Cu thickness = 70 mm (front and back
side), Copper areas: from minimum pad lay-out to 8 cm2).
Figure 11. RthJA vs PCB copper area in open box free air condition (one channel ON)
VNI1440K Package and PC board thermal data
Doc ID 14174 Rev 10 15/25
Figure 12. VNI4140K thermal impedance junction ambient single pulse
(one channel on)
Reverse polarity protection VNI1440K
16/25 Doc ID 14174 Rev 10
9 Reverse polarity protection
This schematic can be used with any type of load.
The following is an indication on how to dimension the RGND resistor.
RGND = (-VCC) / (-IGND)
where -IGND is the DC reverse ground pin current and can be found in the absolute
maximum rating section of the device datasheet.
Power dissipation in RGND (when VCC < 0: during reverse polarity situations) is:
PD = (-VCC)2/RGND
Note: In normal condition (no reverse polarity) due to the diode there will be a voltage drop
between GND of the device and GND of the system.
Figure 13. Reverse polarity protection
Statusi
Inputi
GND
Outputi
+ Vcc
RGND
Load
Diode
Statusi
Inputi
GND
Outputi
+ Vcc
RGND
Load
Diode
VNI1440K Package mechanical data
Doc ID 14174 Rev 10 17/25
10 Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Package mechanical data VNI1440K
18/25 Doc ID 14174 Rev 10
Figure 14. PowerSSO-24 package dimensions
Table 9. PowerSSO-24 mechanical data
Symbol
mm
Min. Typ. Max.
A 2.15 2.47
A2 2.15 2.40
a1 0 0.075
b 0.33 0.51
c 0.23 0.32
D 10.10 10.50
E 7.4 7.6
e 0.8
e3 8.8
G 0.1
G1 0.06
H 10.1 10.5
h 0.4
L 0.55 0.85
N 10deg
X 4.1 4.7
Y 6.5 7.1
VNI1440K Package mechanical data
Doc ID 14174 Rev 10 19/25
Figure 15. PowerSSO-24 tube shipment (no suffix)
Note: All dimensions are in mm.
Table 10. PowerSSO-24 tube shipment
Base quantity 49
Bulk quantity 1225
Tube length (± 0.5) 532
A 3.5
B 13.8
C (± 0.1) 0.6
Package mechanical data VNI1440K
20/25 Doc ID 14174 Rev 10
Figure 16. PowerSSO-24 reel shipment (suffix “TR”)
Table 11. PowerSSO-24 reel dimensions
Base quantity 1000
Bulk quantity 1000
A (max) 330
B (min) 1.5
C (± 0.2) 13
F 20.2
G (2 ± 0) 24.4
N (min) 100
T (max) 30.4
VNI1440K Package mechanical data
Doc ID 14174 Rev 10 21/25
Figure 17. PowerSSO-24™ tape dimensions
Note: According to electronic industries association (EIA) Standard 481 rev. A, Feb 1986
Table 12. PowerSSO-24™ tape dimensions
Tape width W 24
Tape hole spacing P0 (± 0.1) 4
Component spacing P 12
Hole diameter D (± 0.05) 1.55
Hole diameter D1 (min) 1.5
Hole position F (± 0.1) 11.5
Compartment depth K (max) 2.85
Hole spacing P1 (± 0.1) 2
Package mechanical data VNI1440K
22/25 Doc ID 14174 Rev 10
Figure 18. VN14140k suggested footprint
Note: STMicroelectronics is not responsible for any PCB related issues. The footprint shown in the
above figure is a suggestion which might not be in line to the customer PCB supplier design
rules.
All dimensions are in mm.
3OLDER-ASK/PENING





2

 n 
 


VNI1440K Order codes
Doc ID 14174 Rev 10 23/25
11 Order codes
Table 13. Order codes
Order codes Package Packaging
VNI4140K PowerSSO-24 Tube
VNI4140KTR PowerSSO-24 Tape and reel
Revision history VNI1440K
24/25 Doc ID 14174 Rev 10
12 Revision history
Table 14. Document revision history
Date Revision Changes
16-Nov-2007 1 Initial release
26-Nov-2007 2 Updated electrical parameters values
08-Jul-2008 3 Inserted: Figure 4 on page 9 and Section 9: Reverse
polarity protection on page 16
08-Apr-2008 4 Added ILGND parameter in Table 4 on page 6
27-Aug-2009 5 Updated Section 9: Reverse polarity protection
09-Dec-2009 6 Added Section 10: Conformity to IEC 61000-4-2 ESD
immunity test
15-Apr-2010 7 Updated Table 5 on page 6
06-Feb-2012 8
Inserted feature: Conformity to IEC 61000-4-2 ESD
immunity test in cover page.
Removed chapter: Conformity to IEC 61000-4-2 ESD
immunity test.
05-Mar-2012 9 Suggested footprint inserted.
In Table 4. parameter ILGND has been added.
19-Mar-2012 10 Minor text changes.
VNI1440K
Doc ID 14174 Rev 10 25/25
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 TWO AUTHORIZED ST REPRESENTATIVES, 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.
© 2012 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 - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com