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October 2018 DB3625 Rev 2 1/12
EV-VNHD7012AY
VNHD7012AY Evaluation board
Data brief
Features
Simple single IC application board dedicated
for VNHD7012AY
Provides electrical connectivity and thermal
heat-sinking for easy prototyping
Description
EV-VNHD7012AY provides you an easy way to
connect ST VIPower M0-7 HBridge drivers into
your existing prototype circuitry. This evaluation
board comes preassembled with VNHD7012AY
H-Bridge. 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.
VNHD7012AY is a full bridge motor driver
intended for a wide range of automotive
applications. The device incorporates a full
protected dual high-side driver and the drivers
and protections for the two external power
MOSFETs in low-side configuration. The device is
designed using STMicroelectronics well known
and proven proprietary VIPower® technology that
allows to efficiently integrate on the same die a
true PowerMOSFET with an intelligent signal/
protection circuitry. The device is housed in a
PowerSSO-36 exposed pad package to optimize
the dissipation performances. The input signals
INA and INB can directly interface the
microcontroller to select the motor direction and
the brake conditions. Two selection pins (SEL0
and SEL1) are available to address to the
microcontroller the information available on the
MultiSense. The MultiSense pin allows to monitor
the motor current, provides a voltage proportional
to the battery value and the information on the
temperature of the chip. The integrated
protections are: load current limitation, overload
active power limitation (with latch-off),
overtemperature shutdown (with latch-off) and
cross current protection. The PWM, up to 20 KHz,
allows to control the speed of the motor in all
possible conditions.
Table 1. Device summary
Parameter Symbol Value Unit
Max transient
supply voltage VCC 38 V
Operating
voltage range VCC 4 to 28 V
Typ.on-state
resistance
RON per
channel 12 mΩ
Current limitation
(typ) ILIMH 38 A
Stand-by current
(max) ISTBY 10 µA
Order code Reference
EV-VNHD7012AY EV-VNHD7012AY Evaluation
Board
www.st.com
Contents EV-VNHD7012AY
2/12 DB3625 Rev 2
Contents
1 Design recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Board connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
DB3625 Rev 2 3/12
EV-VNHD7012AY List of tables
3
List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Pin connection and function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 3. BOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 4. EV-VNHD7012AY thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 5. PCB specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 6. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
List of figures EV-VNHD7012AY
4/12 DB3625 Rev 2
List of figures
Figure 1. VNHD7012AY evaluation board schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. VNHD7012AY evaluation board top layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. VNHD7012AY evaluation board bottom layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
DB3625 Rev 2 5/12
EV-VNHD7012AY Design recommendation
10
1 Design recommendation
This evaluation board provides mounting and some heat sinking capability for prototype
development.
Figure 1. VNH D70 1 2AY evaluation board schematic
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Design recommendation EV-VNHD7012AY
6/12 DB3625 Rev 2
Figure 2. VNHD7012AY evaluation board top layout
DB3625 Rev 2 7/12
EV-VNHD7012AY Design recommendation
10
Figure 3. VNHD7012AY evaluation board bottom layout
Board connections EV-VNHD7012AY
8/12 DB3625 Rev 2
2 Board connections
Table 2. Pin connection and function
Connector Board lead number Device pin function
J1 1, 2, 5, 12, 14, 15 GND
J1 3 SENSE_EN
J1 4 SEL0
J1 6 MULTI-SENSE
J1 13 PWM
J2 1, 2, 8, 14, 15 GND
J2 7 INA
J2 9 INB
J3 1, 2 OUTA
J4 2 VBAT
J4 1 GND
J5 1, 2 OUTB
TP1 1 GATE_LSA
TP2 1 CP
TP3 1 SEL1
TP4 1 GATE_LSB
DB3625 Rev 2 9/12
EV-VNHD7012AY Board connections
10
Table 3. BOM
Component Value
C1 100 nF nc
C2, C3 100 μF 50V nc
C4, C5, C10 10 nF
C6 10nF nc
C7 33nF
C8 470 μF 50V
C9, C11 100 nF
L1, L2, L3 INDUCTOR-SHORTED
M1 STL76DN4LF7AG
Q1 STL120N4F6AG
R1, R15 0R
R2, R3 4.7 KΩ
R4 OR nc
R5, R6, R7, R8, R9, R10 1 KΩ
R11 1.5 KΩ
R12, R13 10 KΩ
R14 1 KΩ nc
Thermal data EV-VNHD7012AY
10/12 DB3625 Rev 2
3 Thermal data
Table 4. EV- V NHD7012AY thermal data
Table 5. PCB specification
Symbol Parameter Max Unit
Rthj-amb
Thermal resistance junction-
ambient HSD (MAX) 28 °C/W
Symbol Parameter Max Unit
Board dimensions - 45x65 mm
Number of Cu layer - 4 µm
Layer Cu thickness - 35 mm
Board finish thickness - 1.6 +/-10% -
Board Material - FR4 -
Thermal vias
separation - 1.1 mm mm
Thermal vias diameter - 0.5 mm mm
EV-VNHD7012AY
12/12 DB3625 Rev 1
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