EV-VN7003ALH
VN7003ALH Evaluation Board
Data brief
– Extreme low voltage operation for deep
cold cranking applications (compliant with
LV124, revision 2013)
Diagnostic functions
– Dedicated high precision proportional load
current sense
– Overload and short to ground (power
limitation) indication
– Thermal shutdown indication
– OFF-state open-load detection
– Output short to VCC detection
Protections
– Undervoltage shutdown
– Overvoltage clamp
– Load current limitation
– Self limiting of fast thermal transients
– Loss of ground and loss of VCC
– Configurable latch-off on overtemperature
or power limitation
– Reverse battery
– Electrostatic discharge protection
Features
Max transient supply voltage
Operating voltage range
Typ. on-state resistance (per
Ch)
Current limitation (typ)
Stand-by current (max)
Minimum cranking supply
voltage (VCC decreasing)
V
CC
V
CC
R
ON
I
LIMH
I
STBY
V
USD_Cr
anking
40 V
4 to 28 V
3.5 mΩ
135 A
0.5 µA
3V
Applications
Specially intended for Automotive Smart Power
Distribution, Glow Plug, Heating Systems, DC
Motors, Relay replacement and high power
resistive and inductive actuators.
Simple single IC application board dedicated
for VN7003ALH
Provides electrical connectivity and thermal
heat-sinking for easy prototyping
General device features
– Single channel smart high-side driver with
CurrentSense analog feedback
– Very low standby current
– Compatible with 3 V and 5 V CMOS
outputs
Description
This board provides you an easy way to connect
STMicroelectronics
®
VIPower
®
M0-7 technology
into your existing system.
Table 1. Device summary
Order Code
EV-VN7003ALH
Reference
VN7003ALH Evaluation Board
October 2016
DocID029878 Rev 1
1/8
www.st.com
For further information contact your local STMicroelectronics sales office.
Overview
EV-VN7003ALH
1
Overview
The board comes pre-assembled with VN7003ALH high-side driver. On board minimum set
of electrical components (as for device datasheet recommendation) is enabling the user to
directly connect the load, the power supply and the microcontroller without any additional
effort in external component design and connection.
The VN7003ALH is a single channel high-side driver manufactured using ST proprietary
VIPower
®
technology and housed in the Octapak package. The device is designed to drive
12 V automotive grounded loads through a 3 V and 5 V CMOS-compatible interface,
providing protection and diagnostics.
The device integrates advanced protective functions such as load current limitation,
overload active management by power limitation and overtemperature shutdown.
A combination of INPUT and FR_DIAG pins latches the output in case of fault, disables the
latch-off functionality and enables OFF-state diagnostic.
Figure 1. EV-VN7003ALH schematic
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DocID029878 Rev 1
EV-VN7003ALH
Board connections
2
Board connections
Figure 2
shows the placement of the connectors to be used for supplying the evaluation
board, connecting the load and controlling the functionality and diagnostic of the device.
Figure 2. Evaluation board connections
Table 2. J3 connector: pin functions
Connector
J3
J3
J3
J3
J3
J3
J3
J3
J3
Pin number
1...4
5
6
7
8
9
10...11
12
13
Pin name
N/A
IN_PullUP
+5 V
N/A
Multisense
FR_DIAG
N/A
N/A
IN0
Not connected
Connection to optional external pull-up resistor for
open load detection in off-state.
5V Power Supply
Not connected
Analog current sense output pin delivers a current
proportional to the load current.
Sets auto-restart and latch-off protection.
Moreover, it enables OFF-state diagnostic.
Not connected
Not connected
Voltage controlled input pin with hysteresis,
compatible with 3 V and 5 V CMOS outputs. It
controls OUT0 switch state.
Voltage controlled input pin with hysteresis,
compatible with 3 V and 5 V CMOS outputs. It
controls OUT1 switch state (input not available for
single channel).
Not connected
Pin function
J3
14
IN1
J3
15...18
N/A
DocID029878 Rev 1
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6
Board connections
EV-VN7003ALH
In case the user wishes to utilize the Current Sense / MultiSense function of the device, it is
necessary to plug a sense resistor in Rsense.
The package includes a through-hole resistor, to be mounted on TP1-TP2 - see
Figure 4.
Different Rsense values can be adopted based on user preference.
Another option is soldering an SMD resistor on the dedicated PCB pad, as shown in
Figure 5.
Figure 3. No sense resistor
Figure 4. Mounting through-hole sense resistor
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DocID029878 Rev 1
EV-VN7003ALH
Figure 5. Pads for soldering SMD resistor
Board connections
DocID029878 Rev 1
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