ST VN751PT User Manual

Features
VN751PT
High side driver
Typ e R
DS(on)
I
out
V
CC
VN751PT 60 mΩ 2.5 A 36 V
CMOS compatible input
Thermal shutdown
Shorted load protection
Protection against loss of ground
Very low standby current
Compliance to 61000-4-4 IEC test up to 4 kV
Open drain status output

Figure 1. Block diagram

PPAK
Description
The VN751PT 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 V 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.
V
CC
pin voltage
CC
OVERVOLTAGE
DETECTION
UNDERVOLTAGE
DETECTION
Power CLAMP
DRIVER
CURRENT LIMITER
OUTPUT
GND
INPUT
STATUS
V
CC
CLAMP
OVERTEMPERATURE
DETECTION
LOGIC
November 2009 Doc ID 12137 Rev 8 1/17
www.st.com
17
Contents VN751PT
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
2/17 Doc ID 12137 Rev 8
VN751PT Maximum ratings

1 Maximum ratings

Table 1. Absolute maximum rating

Symbol Parameter Value Unit
V
- V
- I
I
- I
I
V
T
E
OUT
I
STAT
ESD
P
T
T
DC supply voltage (overvoltage protected) 45 V
CC
Reverse DC supply voltage -0.3 V
CC
DC reverse ground pin current -200 mA
GND
DC output current Internally limited A
Reverse DC output current -5 A
OUT
DC input current +/- 10 mA
IN
DC status current +/- 10 mA
Electrostatic discharge ( R = 1.5 kΩ; C = 100 pF ) 5000 V
Power dissipation TC = 25 °C
tot
Junction operating temperature Internally limited °C
J
Case operating temperature - 40 to 150 °C
c
Storage temperature - 55 to 150 °C
stg
Single-pulse avalanche energy 0.8 J
AS
Internally limited W

Table 2. Thermal data

Symbol Parameter Value Unit
R
R
1. When mounted on a FR-4 printed circuit board with 0.5 cm2 of Cu (at least 35μm thick) connected to all V
Thermal resistance junction-ambient Max
thJA
Thermal resistance junction-case Max 3 °C/W
thJC
pins.
CC
50
(1)
Doc ID 12137 Rev 8 3/17
°C/W
Pin connections VN751PT

2 Pin connections

Figure 2. Connection diagram (top view)

Figure 3. Current and voltage conventions

4/17 Doc ID 12137 Rev 8
VN751PT Electrical characteristics

3 Electrical characteristics

8 V < V
< 36 V; -40 °C < TJ < 125 °C, unless otherwise specified
CC

Table 3. Power

Symbol Parameter Test conditions Min Typ Max Unit
V
V
V
R
I
L(off)
CC
USD
OV
ON
I
Operating supply voltage
Undervoltage shut-down
Overvoltage shut-down
On state resistance
Supply current
S
Off state output current
I
= 2 A; TJ = 25 °C
OUT
= 2 A
I
OUT
Off state; V
On state; V
On state; V
= V
V
IN
OUT
= 24 V; T
CC
= 24 V
CC
= 24 V;T
CC
= 0 V
CASE
CASE
=25 °C
=100 °C
5.5 36 V
345.5V
36 V
60
180mΩmΩ
10
20
1.5
1.8
010μA

Table 4. Switching ( VCC = 24 V )

Symbol Parameter Test conditions Min Typ Max Unit
μA mA mA
dV
dV
t
d(on)
t
d(off)
OUT
OUT
/dt
/dt
Turn-on delay time
Turn-off delay time
Turn -on voltage slope
(on)
Turn -off voltage slope
(off)
= 12 Ω from VIN rising edge to
R
L
V
= 2.4 V
OUT
= 12 Ω from VIN falling edge to
R
L
= 21.6 V
V
OUT
= 12Ω from V
R
L
= 19.2 V
V
OUT
= 12 Ω from V
R
L
= 2.4 V
V
OUT
= 2.4 V to
OUT
= 21.6 V to
OUT
12 μs
35 μs
0.80 V/μs
0.30 V/μs
Doc ID 12137 Rev 8 5/17
Electrical characteristics VN751PT

Table 5. Input pin

Symbol Parameter Test conditions Min Typ Max Unit
V
IL
I
IL
V
IH
I
IH
V
hyst
I
IN
V
ICL
Input low level 1.25 V
Low level input current
V
= 1.25 V
IN
1 μA
Input high level 3.25 V
High level input current
Input hysteresis voltage
Input current
Input clamp voltage
V
= 3.25 V
IN
V
IN = VCC
I
= 1 mA
IN
= -1 mA
I
IN
= 5 V
0.5 V
6
6.8
-0.7
10 μA
10 μA
8 V

Table 6. Status pin

Symbol Parameter Test conditions Min Typ Max Unit
V
STAT
I
LSTAT
C
STAT
V
SCL
Status low output voltage
Status leakage current
Status pin input capacitance
Status clamp voltage
I
= 1.6 mA
STAT
Normal operation; V
Normal operation; V
= 1 mA;
I
STAT
=-1 mA
I
STAT
STAT
STAT
= 5 V
= 5 V
6 6.8
-0.7
0.5 V
10 µA
100 pF
8 V
V
V

Table 7. Protections

Symbol Parameter Test conditions Min Typ Max Unit
T
TSD
T
R
T
hyst
I
lim
V
demag
6/17 Doc ID 12137 Rev 8
Shut-down temperature
Reset temperature 135 °C
Thermal hysteresis 7 20 °C
Current limitation
CC
t = 0.4 ms
LOAD
V
= 24 V, R
Turn-off output clamp
RL =12 Ω; L = 6 mH
voltage
= 10 mΩ,
150 175 200 °C
2.7 6.0 A
V
-47VCC-52VCC-
CC
57
V
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