ST VN920SP User Manual
Single channel high-side solid-state relay
Features
Type R
DS(on)
VN920SP 15 mΩ 30 A 36 V
I
OUT
V
CC
VN920SP
10
1
■ CMOS compatible input
■ Proportional load current sense
■ Shorted load protection
■ Under-voltage and over-voltage shutdown
■ Over-voltage clamp
■ Thermal shutdown
■ Current limitation
■ Protection against loss of ground and loss of
V
CC
■
Very low standby power dissipation
■ Reverse battery protected (see Application
schematic
)
Table 1. Device summary
Package
PowerSO-10
Description
The VN920SP is a monolithic device designed in
STMicroelectronics VIPower M0-3 technology.
The VN920SP is intended for driving any type of
load with one side connected to ground. The
active V
against low energy spikes (see ISO7637 transient
compatibility table). Active current limitation
combined with thermal shutdown and automatic
restart protects the device against over-load.
The device integrates an analog current sense
output which delivers a current proportional to the
load current. The device automatically turns off in
the case where the ground pin becomes
disconnected.
Tube Tape and reel
pin voltage clamp protects the device
CC
Order codes
PowerSO-10 VN920SP VN920SP13TR
December 2008 Rev 3 1/26
www.st.com
26
Contents VN920SP
Contents
1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1 GND protection network against reverse battery . . . . . . . . . . . . . . . . . . . 16
3.1.1 Solution 1: resistor in the ground line (RGND only) . . . . . . . . . . . . . . . . 16
3.1.2 Solution 2: diode (DGND) in the ground line . . . . . . . . . . . . . . . . . . . . . 17
3.2 Load dump protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3 MCU I/Os protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.4 PowerSO-10 maximum demagnetization energy (VCC = 13.5V) . . . . . . . 18
4 Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 PowerSO-10 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.1 ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.2 PowerSO-10 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.3 PowerSO-10 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2/26
VN920SP List of tables
List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Suggested connections for unused and not connected pins . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 3. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 4. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 5. Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 6. Switching (V
Table 7. Logic inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 8. Current sense (9V ≤ VCC ≤ 16V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 9. V
Table 10. Protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 11. Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 12. Electrical transient requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 13. Thermal parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 14. PowerSO-10 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 15. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
output diode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CC
=13V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CC
3/26
List of figures VN920SP
List of figures
Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Configuration diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3. Current and voltage conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4. Switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 5. I
Figure 6. Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 7. Off-state output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 8. High-level input current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 9. Input clamp voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 10. Turn-on voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 11. Over-voltage shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 12. Turn-off voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 13. ILIM vs Tcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 14. On-state resistance vs VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 15. Input high-level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 16. Input hysteresis voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 17. On-state resistance vs Tcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 18. Input low-level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 19. Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 20. PowerSO-10 maximum turn-off current versus inductance . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 21. PowerSO-10 PC board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 22. Rthj-amb Vs PCB copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 19
Figure 23. Thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 24. Thermal fitting model of a single channel HSD in PowerSO-10 . . . . . . . . . . . . . . . . . . . . . 20
Figure 25. PowerSO-10 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 26. PowerSO-10 suggested pad layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 27. PowerSO-10 tube shipment (no suffix). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 28. PowerSO-10 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
OUT/ISENSE
versus I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
OUT
4/26
VN920SP Block diagram and pin description
1 Block diagram and pin description
Figure 1. Block diagram
V
CC
V
CC
CLAMP
GND
INPUT
LOGIC
OVERTEMPERATURE
DETECTION
OVERVOLTAGE
DETECTION
UNDERVOLTAGE
DRIVER
Figure 2. Configuration diagram (top view)
GROUND
INPUT
C.SENSE
N.C.
N.C.
6
7
8
9
10
V
CC
11
DETECTION
Powe r CLAMP
CURRENT LIMITER
VDS LIMITER
I
OUT CURRENT
5
4
3
2
1
K
OUTPUT
OUTPUT
N.C.
OUTPUT
OUTPUT
OUTPUT
SENSE
PowerSO-10
Table 2. Suggested connections for unused and not connected pins
Connection / pin Current Sense N.C. Output Input
Floating X X X
To ground
Through 1KΩ
resistor
X
Through 10KΩ
5/26
resistor
Electrical specifications VN920SP
2 Electrical specifications
Figure 3. Current and voltage conventions
I
S
V
CC
I
OUT
I
SENSE
V
SENSE
GND
OUTPUT
I
GND
I
IN
V
IN
INPUT
CURRENT SENSE
V
F
V
OUT
V
CC
2.1 Absolute maximum ratings
Stressing the device above the rating listed in the “Absolute maximum ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the operating sections of
this specification is not implied. Exposure to Absolute maximum rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics sure
program and other relevant quality document.
Table 3. Absolute maximum ratings
Symbol Parameter Value Unit
V
- V
- I
I
OUT
- I
OUT
I
V
CSENSE
V
ESD
DC supply voltage 41 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 - 40 A
DC input current +/- 10 mA
IN
Current Sense maximum voltage
Electrostatic discharge
(human body model: R = 1.5KΩ; C = 100pF)
INPUT
CURRENT SENSE
OUTPUT
V
CC
- 3
+ 15
4000
2000
5000
5000
V
V
V
V
V
V
6/26
VN920SP Electrical specifications
Table 3. Absolute maximum ratings (continued)
Symbol Parameter Value Unit
Maximum switching energy
E
MAX
P
T
T
T
(L = 0.25mH; R
= 150ºC; IL = 45A)
T
jstart
Power dissipation TC ≤ 25°C 96.1 W
tot
Junction operating temperature Internally limited °C
j
Case operating temperature - 40 to 150 °C
c
Storage temperature - 55 to 150 °C
stg
= 0Ω; V
L
= 13.5V;
bat
362 mJ
2.2 Thermal data
Table 4. Thermal data
Symbol Parameter Max. value Unit
R
thj-case
R
thj-amb
1. When mounted on FR4 printed circuit board with 0.5cm2 of Cu (at least 35µm thick).
2. When mounted on FR4 printed circuit board with 6cm2 of Cu (at least 35µm thick).
Thermal resistance junction-case 1.3 °C/W
Thermalresistance junction-ambient 51.3
(1)
37
(2)
°C/W
°C/W
7/26
Electrical specifications VN920SP
2.3 Electrical characteristics
Values specified in this section are for 8V < V
< 36V; -40°C < Tj < 150°C, unless otherwise
CC
stated.
Table 5. Power
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
V
V
R
V
CLAMP
I
L(off1)
I
L(off2)
I
L(off3)
Operating supply voltage 5.5 13 36 V
CC
Under-voltage shutdown 3 4 5.5 V
USD
Over-voltage shutdown 36 V
OV
I
= 10A; Tj = 25°C;
OUT
On-state resistance
ON
Clamp voltage I
Supply current
I
S
Off-state output current V
Off-state output current V
Off-state output current
I
= 10A;
OUT
= 3A; V
I
OUT
= 20mA 41 48 55 V
CC
Off-state; V
= V
V
IN
OUT
Off-state; V
= V
V
IN
OUT
On-state; V
= 0A; R
I
OUT
= V
IN
OUT
= 0V; V
IN
V
= V
IN
OUT
= 6V
CC
= 13V;
CC
= 0V
= 13V;
CC
= 0V; Tj = 25°C
= 13V; V
CC
SENSE
= 5V;
IN
= 3.9 kΩ
= 0V 0 50 µA
= 3.5V -75 0 µA
OUT
= 0V; V
CC
= 13V;
Tj = 125°C
15
30
50
101025
20
5
5µA
mΩ
mΩ
mΩ
µA
µA
mA
V
= V
IN
Tj = 25°C
Note: V
I
L(off4)
CLAMP
Table 6. Switching (VCC=13V)
Off-state output current
and VOV are correlated. Typical difference is 5V.
Symbol Parameter Test conditions Min. Typ. Max. Unit
Turn-on delay time RL = 1.3Ω (see Figure 4.)50µs
Turn-off delay time RL = 1.3Ω (see Figure 4.)50µs
/dt
Turn-on voltage slope RL = 1.3Ω (see Figure 4.) See Figure 10. V/µs
(on)
/dt
Turn-off voltage slope RL = 1.3Ω (see Figure 4.) See Figure 12. V/µs
(off)
dV
dV
t
d(on)
t
d(off)
OUT
OUT
8/26
OUT
= 0V; V
CC
= 13V;
3µA
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