STMICROELECTRONICS VN751STR

VN751S
High side driver
Features
Type
RDS(on)
Iout
VCC
VN751S
60 mΩ
2.5 A
36 V
SO-8
■
CMOS compatible input
■
Thermal shutdown
■
Shorted load protection
■
Undervoltage and overvoltage shutdown
■
Protection against loss of ground
■
Very low stand-by current
■
Compliance to 61000-4-4 IEC test up to 4 kV
Figure 1.
Description
The VN751S is a monolithic device designed in
STMicroelectronics VIPower M0-3 technology,
intended for driving 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. 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 controllers international standard.
Block diagram
VCC
OVERVOLTAGE
DETECTION
VCC
CLAMP
UNDERVOLTAGE
DETECTION
GND
Power CLAMP
DRIVER
OUTPUT
LOGIC
INPUT
CURRENT LIMITER
STATUS
OVERTEMPERATURE
DETECTION
July 2008
Rev 6
1/17
www.st.com
17
VN751S
Contents
Contents
1
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4
Waveforms and truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6
Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7
Reverse polarity protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
9
Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
10
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
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VN751S
1
Maximum ratings
Maximum ratings
Table 1.
Absolute maximum rating
Symbol
Value
Unit
DC supply voltage (overvoltage protected)
45
V
- VCC
Reverse DC supply voltage
-0.3
V
- IGND
DC reverse ground pin current
-200
mA
Internally limited
A
-5
A
VCC
IOUT
- IOUT
Parameter
DC output current
Reverse DC output current
IIN
DC input current
+/- 10
mA
ISTAT
DC status current
+/- 10
mA
VESD
Electrostatic discharge ( R = 1.5 kΩ; C = 100 pF )
5000
V
Ptot
Power dissipation TC = 25 °C
Internally limited
W
TJ
Junction operating temperature
Internally limited
°C
Tc
Case operating temperature
- 40 to 150
°C
Tstg
Storage temperature
- 55 to 150
°C
EAS
Single-pulse avalanche energy
0.8
J
Value
Unit
93(1)
°C/W
Table 2.
Symbol
Thermal data
Parameter
RthJA
Thermal resistance junction-ambient
RthJC
Thermal resistance junction-case
Max
82(2)
Max
15
°C/W
1. When mounted on a standard single-sided FR-4 board with 0.5 cm2 of Cu (at least 35µm) thick connected to all
VCC pins. Horizontal mounting and no artificial air flow.
2. When mounted on a standard single-sided FR-4 board with 2 cm2 of Cu (at least 35µm) thick connected to all
VCC pins. Horizontal mounting and no artificial air flow.
3/17
Pin connections
2
Pin connections
Figure 2.
Connection diagram (top view)
Figure 3.
Current and voltage conventions
4/17
VN751S
VN751S
3
Electrical characteristics
Electrical characteristics
8 V < VCC < 36 V; -40 °C < TJ < 125 °C, unless otherwise specified
Table 3.
Symbol
Power
Parameter
Test conditions
Min
VCC
Operating supply
voltage
VUSD
Undervoltage
shut-down
3
VOV
Overvoltage
shut-down
36
RON
On state resistance
5.5
IOUT = 2 A; TJ = 25 °C
Supply current
4
Table 4.
Symbol
Off state output
current
IOUT = 2 A
36
V
5.5
V
180
10
1.5
On state; VCC = 24 V
VIN = VOUT = 0 V
Unit
V
On state; VCC = 24 V;TCASE =100 °C
IL(off)
Max
60
Off state; VCC = 24 V; TCASE =25 °C
IS
Typ
0
mΩ
mΩ
1.8
µA
mA
mA
10
µA
20
Switching ( VCC = 24 V )
Parameter
Test conditions
Min
Typ
Max Unit
td(on)
Turn-on delay time
RL = 12 Ω from VIN rising edge to
VOUT = 2.4 V
12
µs
td(off)
Turn-off delay time
RL = 12 Ω from VIN falling edge to
VOUT = 21.6 V
35
µs
dVOUT/dt(on)
Turn -on voltage
slope
RL = 12Ω from VOUT = 2.4 V to
VOUT = 19.2 V
0.80
V/µs
dVOUT/dt(off)
Turn -off voltage
slope
RL = 12 Ω from VOUT = 21.6 V to
VOUT = 2.4 V
0.30
V/µs
5/17
VN751S
Electrical characteristics
Table 5.
Symbol
Parameter
VIL
Input low level
IIL
Low level input
current
VIH
Input high level
IIH
High level input
current
Vhyst
Input hysteresis
voltage
IIN
VICL
Table 6.
Symbol
Input current
Input clamp voltage
Test conditions
VIN = 1.25 V
Min
Typ
Max
Unit
1.25
V
1
µA
3.25
V
VIN = 3.25 V
10
0.5
V
VIN = VCC = 5 V
IIN = 1 mA
µA
10
µA
6
6.8
-0.7
8
V
V
Min
Typ
Max
Unit
IIN = -1 mA
Status pin
Parameter
Test conditions
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;
ISTAT =-1 mA
6
6.8
-0.7
8
V
V
Min
Typ
Max
Unit
Shut-down
temperature
150
175
200
°C
TR
Reset temperature
135
Thyst
Thermal hysteresis
7
Table 7.
Symbol
TTSD
Ilim
Vdemag
6/17
Input pin
Protections
Parameter
Current limitation
Test conditions
VCC = 24 V, RLOAD = 10 mΩ,
t = 0.4 ms
Turn-off output clamp
RL =12 Ω; L = 6 mH
voltage
°C
20
2.7
VCC47
VCC52
°C
6.0
A
VCC57
V
VN751S
4
Waveforms and truth table
Waveforms and truth table
Figure 4.
Switching time waveforms
VOUT
90%
80%
dVOUT/dt(off)
dVOUT/dt(on)
10%
t
VIN
td(on)
td(off)
t
Table 8.
Truth table
Conditions
Input
Output
Status
Normal operation
L
H
L
H
H
H
Current limitation
L
H
H
L
X
X
Overtemperature
L
H
L
L
H
L
Undervoltage
L
H
L
L
X
X
Overvoltage
L
H
L
L
H
H
H
(TJ < TTSD) H
(TJ > TTSD) L
7/17
VN751S
Waveforms and truth table
Figure 5.
Waveforms
NORMAL OPERATION
INPUT
LOAD VOLTAGE
STATUS
UNDERVOLTAGE
VUSDhyst
VCC
VUSD
INPUT
LOAD VOLTAGE
undefined
STATUS
OVERVOLTAGE
VCC<VOV
VCC>VOV
VCC
INPUT
LOAD VOLTAGE
STATUS
TJ
INPUT
LOAD CURRENT
STATUS
8/17
TTSD
TR
OVERTEMPERATURE
VN751S
5
Figure 6.
Test circuit
Test circuit
Peak short circuit current test circuit
R
Figure 7.
Avalanche energy test circuit
R
9/17
VN751S
Application schematic
6
Figure 8.
Application schematic
Application schematic
VN751S
10/17
VN751S
7
Reverse polarity protection
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 to be met:
1.
RGND ≤ 600 mV / (IS in ON state max).
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 RGNG during reverse polarity condition is:
PD = (-VCC)2/RGND
This resistor can be shared by several different ICs. In such case IS value on formula (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 then the
voltage drop across the RGND (given by IS in ON state max * RGND) produce a difference
between the generated input level and the IC input signal level. This voltage drop will vary
depending on how many devices are ON in the case of several high side switches sharing the
same RGND.
Figure 9.
Reverse polarity protection
+ Vcc
Statusi
Outputi
Inputi
RGND
GND
Load
(Optional)
11/17
Package mechanical data
8
VN751S
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK® packages.
These packages have a lead-free second level interconnect . The category of second level
interconnect 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 is an ST trademark. ECOPACK specifications are available at:
www.st.com
12/17
VN751S
Package mechanical data
Table 9.
SO-8 mechanical data
mm
inch
Dim.
Min
Typ
A
a1
Max
Min
Typ
1.75
0.1
0.068
0.25
a2
Max
0.003
0.009
1.65
0.064
a3
0.65
0.85
0.025
0.033
b
0.35
0.48
0.013
0.018
b1
0.19
0.25
0.007
0.010
C
0.25
0.5
0.010
0.019
c1
45 ( typ. )
D
4.8
5.0
0.188
0.196
E
5.8
6.2
0.228
0.244
e
1.27
0.050
e3
3.81
0.150
F
3.8
4.0
0.14
0.157
L
0.4
1.27
0.015
0.050
M
S
0.6
0.023
8º (max.)
Figure 10. Package dimensions
13/17
Package mechanical data
Figure 11. SO-8 tape and reel information
14/17
VN751S
VN751S
9
Order code
Order code
Table 10.
Order codes
Order codes
Package
Packaging
VN751S
SO-8
Tube
VN751STR
SO-8
tape and reel
15/17
VN751S
Revision history
10
Revision history
Table 11.
16/17
Document revision history
Date
Revision
Changes
18-Sep-2006
1
Initial release
12-Mar-2007
2
Document reformatted, typo in Section Table 3.: Power on
page 5, updated Ptot value Table 2.
15-May-2007
3
Typo in Table 1 on page 3 VESD
18-Sep-2007
4
Added ISTAT valuein Table 1 on page 3
11-Oct-2007
5
Updated Table 2 on page 3
08-Jul-2008
6
Added Section 7 on page 11
VN751S
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