VN751PT
High-side driver
Datasheet - production data
Description
The VN751PT is a monolithic device developed
using STMicroelectronics' VIPower M03
technology, intended to drive any kind of load with
one side connected to ground. Active VCC pin
voltage clamp protects the device against low
energy spikes. Active current limitation combined
with thermal shutdown and automatic restart
protect the device against overload. The device
automatically turns off in case of ground pin
disconnection. This device is especially suitable
for industrial applications in conformity with IEC
61131-2 programmable controller international
standard.
Features
8 V to 36 V supply voltage range
Up to IOUT = 2.5 A operating current
RDS(on): 60 m
CMOS compatible input
Table 1. Device summary
Thermal shutdown
Order code
Shorted load protection
Undervoltage and overvoltage shutdown
VN751PT
VN751PTTR
Protection against loss of ground
Package
PPAK
Packing
Tube
Tape and reel
Fast demagnetization of inductive loads
Very low standby current
Compliance to 61000-4-4 IEC test up to 4 kV
Open drain status output
May 2018
This is information on a product in full production.
DocID12137 Rev 10
1/23
www.st.com
Contents
VN751PT
Contents
1
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5
Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6
Switching time waveforms and truth table . . . . . . . . . . . . . . . . . . . . . . 11
7
Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
8
Reverse polarity protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
9
Active VDS clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
10
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
11
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10.1
PPAK package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
10.2
PPAK packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
DocID12137 Rev 10
VN751PT
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Switching (VCC = 24 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Input pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Status pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
PPAK package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
PPAK tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
DocID12137 Rev 10
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23
List of figures
VN751PT
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
4/23
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Connection diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Current and voltage conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Peak short-circuit current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Avalanche energy test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Switching time waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Reverse polarity protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Active clamp equivalent principle schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Fast demagnetization waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Typical demagnetization energy (single pulse) at VCC = 24 V and TAMB = 125 °C . . . . . . 17
PPAK package outline(1), (2), (3), (4), (5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
PPAK tape outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
PPAK reel outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
DocID12137 Rev 10
VN751PT
1
Block diagram
Block diagram
Figure 1. Block diagram
".
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Pin connection
2
VN751PT
Pin connection
Figure 2. Connection diagram (top view)
".
Figure 3. Current and voltage conventions
".
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VN751PT
3
Maximum ratings
Maximum ratings
Table 2. Absolute maximum ratings
Symbol
Parameter
Value
Unit
45
V
VCC
Power supply voltage
-VCC
Reverse supply voltage
-0.3
V
-IGND
DC reverse ground pin current
-200
mA
IOUT
DC output current
Internally limited
A
-IOUT
Reverse DC output current -
5
A
IIN
DC input current -
1 to +10
mA
ISTAT
DC status current -
1 to +10
mA
VESD
Electrostatic discharge (R = 1.5 k; C = 100 pF)
5000
V
EAS
Single pulse avalanche energy
(Tamb = 125 °C, VCC = 24 V, Iload = 2.0 A)
5.5
J
PTOT
Power dissipation at TC = 25 °C
Internally limited
W
TJ
Junction operating temperature
Internally limited
°C
TC
Case operating temperature
-40 to 150
°C
Storage temperature
-55 to 150
°C
Value
Unit
Max.
3
°C/W
Max.
50(1)
°C/W
TSTG
Table 3. Thermal data
Symbol
Rth(JC)
Rth(JA)
Parameter
Thermal resistance junction-case
Thermal resistance junction-ambient
1. When mounted on a standard single-sided FR-4 board with 0.5 cm2 of Cu (at least 35 m) thick connected
to all VCC pins.
DocID12137 Rev 10
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Electrical characteristics
4
VN751PT
Electrical characteristics
8 V < VCC < 36 V; -40 °C < TJ < 125 °C; unless otherwise specified.
Table 4. Power
Symbol
VCC
RDS(on)
IS(1)
Parameter
Test conditions
Supply voltage
-
On-state resistance
5.5
-
36
V
IOUT = 2 A at TJ = 25 °C
-
60
-
m
IOUT = 2 A
-
OFF-state, VCC = 24 V, TJ = 25 °C,
ON-state, VCC = 24 V, TJ = 25 °C,
ON-state, VCC = 24 V, TJ = 100 °C
Supply current
Min. Typ. Max. Unit
180
-
10
20
µA
-
3.5
-
mA
-
-
3.8
mA
VUSD
Undervoltage shutdown -
3
4
5.5
V
VOV
Overvoltage shutdown
36
-
-
V
IL(off)
Off-state output current VIN = VOUT = 0 V
0
-
10
µA
-
1. Status: floating.
Table 5. Switching (VCC = 24 V)
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
td(ON)
Turn-on delay time
RL = 12 from VIN rising edge to
VOUT = 2.4 V
-
12
-
µs
td(OFF)
Turn-on delay time of RL = 12 from VIN falling edge to
output current
VOUT = 21.6 V
-
35
-
µs
dVOUT/dt(on)
Turn -on voltage
slope
RL = 12 from VOUT = 2.4 V to
VOUT = 19.2 V
-
0.80
-
dVOUT/dt(off)
Turn -off voltage
slope
RL = 12 from VOUT = 21.6 V to
VOUT = 2.4 V
-
0.30
-
V/µs
Table 6. Input pin
Symbol
Test conditions
VIL
Input low level
-
IIL
Low level input current
VIN = 1.25 V
VIH
Input high level
-
IIH
High level input current
VIN = 3.25 V
VI(HYST)
Input hysteresis voltage
-
Input current
IIN
VICL
8/23
Parameter
Input clamp voltage
Min. Typ. Max. Unit
1.25
-
V
1
-
-
µA
3.25
-
-
V
-
-
10
µA
0.5
-
-
V
VIN = VCC = 5 V
-
-
10
µA
IIN = 1 mA
6
6.8
8
IIIN = -1 mA
-
-0.7
-
DocID12137 Rev 10
V
VN751PT
Electrical characteristics
Table 7. Status pin
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
VSTAT
Status low output voltage
ISTAT = 1.6 mA
-
-
0.5
V
ILSTAT
Status leakage current
Normal operation; VSTAT = 5 V
-
-
10
µA
CSTAT
Status pin input capacitance Normal operation; VSTAT = 5 V
-
-
100
pF
VSCL
Status clamp voltage
ISTAT = 1 mA
6
6.8
8
µA
ISTAT = -1 mA
-
-0.7
-
V
Table 8. Protection
Symbol
Vdemag
Parameter
Test conditions
Turn-off output clamp voltage RL = 12 ; L = 6 mH
Min.
Typ.
Max.
VCC -47 VCC -52 VCC -57
Unit
V
Shutdown temperature
-
150
175
200
°C
Current limitation
VCC = 24 V;
RLOAD = 10 m,
t = 0.4 ms
2.7
-
6.0
A
Thyst
Thermal hysteresis
-
7
20
-
°C
TR
Reset temperature
-
135
-
-
°C
TTSD
Ilim
DocID12137 Rev 10
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Test circuits
5
VN751PT
Test circuits
Figure 4. Peak short-circuit current
Figure 5. Avalanche energy test circuit
10/23
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VN751PT
6
Switching time waveforms and truth table
Switching time waveforms and truth table
Figure 6. Switching time waveforms
".
Table 9. Truth table
Conditions
Normal operation
Current limitation
Overtemperature
Undervoltage
Overvoltage
Input
Output
Status
L
L
H
H
H
H
L
L
H
H
X
(TJ < TTSD) H
H
X
(TJ > TTSD) L
L
L
H
H
L
L
L
L
X
H
L
X
L
L
H
H
L
H
DocID12137 Rev 10
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Switching time waveforms and truth table
VN751PT
Figure 7. Waveforms
".
12/23
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VN751PT
7
Application schematic
Application schematic
Figure 8. Application schematic
DocID12137 Rev 10
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23
Reverse polarity protection
8
VN751PT
Reverse polarity protection
A schematic solution to protect the IC against a reverse polarity condition is proposed.
This schematic is effective with any type of load connected to the outputs of the IC. The
RGND resistor value can be selected according to the following conditions:
Equation 1
RGND 600 mV / (IS in ON-state max.)
Equation 2
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.
The power dissipation associated to RGND during reverse polarity condition is:
Equation 3
PD = (-VCC)2 / RGND
This resistor can be shared by several different ICs.
In such case IS value in Equation 1 is the sum of the maximum ON-state currents of the
different devices. Please note that if the microprocessor ground and the device ground are
separated, the voltage drop across the RGND (given by IS in ON-state max. * RGND)
produces a difference between the generated input level and the IC input signal level. This
voltage drop varies depending on how many devices are ON in case of several high-side
switches sharing the same RGND.
Figure 9. Reverse polarity protection
".
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VN751PT
9
Active VDS clamp
Active VDS clamp
Active clamp is also known as fast demagnetization of inductive loads or fast current decay.
When a high-side driver turns off an inductance, an undervoltage is detected on output.
The OUT pin is pulled down to Vdemag. The conduction state is modulated by an internal
circuitry in order to keep the OUT pin voltage at about Vdemag until the load energy has been
dissipated. The energy is dissipated both in IC internal switch and in load resistance.
Figure 10. Active clamp equivalent principle schematic
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DocID12137 Rev 10
15/23
23
Active VDS clamp
VN751PT
Figure 11. Fast demagnetization waveforms
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The demagnetization of inductive load causes a huge electrical and thermal stress to the IC.
The curve plotted below shows the maximum demagnetization energy that the IC can
support in a single demagnetization pulse with VCC = 24 V and TAMB = 125 °C. If higher
demagnetization energy is required then an external free-wheeling Schottky diode has to be
connected between OUT (cathode) and GND (anode) pins. Note that in this case the fast
demagnetization is inhibited.
16/23
DocID12137 Rev 10
VN751PT
Active VDS clamp
Figure 12. Typical demagnetization energy (single pulse) at VCC = 24 V and TAMB = 125 °C
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