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VN920B5-E
User Manual
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ST VN920B5-E User Manual

Single channel high-side solid state relay
Features
Typ e R
VN920B5-E 16 mΩ 30 A 36 V
DS(on)
I
OUT
VN920B5-E
V
CC
■ ECOPACK
■ Automotive Grade: compliance with AEC
®
Guidelines
■ Very low standby current
■ CMOS compatible input
■ Proportional load current sense
■ Current sense disable
■ Thermal shutdown protection and diagnosis
■ Undervoltage shutdown
■ Overvoltage clamp
■ Load current limitation
P2PAK
Description
The VN920B5-E is a monolithic device designed in STMicroelectronics™ VIPower™ M0-3 technology. The VN920B5-E is intended for driving any type of load with one side connected to ground.
The active V
pin voltage clamp protects the
CC
device against low energy spikes (see ISO7637 transient compatibility table).
Active current limitation combined with thermal shutdown and automatic restart protect the device against overload.
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.

Table 1. Device summary

Order codes
Package
Tube Tape and reel
2
PAK VN920B5-E VN920B5TR-E
P
July 2010 Doc ID 17608 Rev 1 1/26
www.st.com
1
Contents VN920B5-E
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 P
2
PAK maximum demagnetization energy (VCC = 13.5V) . . . . . . . . . . . 18
4 Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 P2PAK thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.1 ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2
5.2 P
5.3 P
PAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2
PAK packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2/26 Doc ID 17608 Rev 1
VN920B5-E 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 (9 V ≤ V Table 9. V
output diode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CC
Table 10. Protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 11. Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 12. Electrical transient requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 13. P Table 14. P
2
PAK thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2
PAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 15. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
= 13 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CC
≤ 16 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CC
Doc ID 17608 Rev 1 3/26
List of figures VN920B5-E
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 5. I
OUT/ISENSE
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. Overvoltage shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 12. Turn-off voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 13. I
LIM
vs T Figure 14. On-state resistance vs V
Figure 15. Input high-level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 16. Input hysteresis voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 17. On-state resistance vs T
Figure 18. Input low level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 19. Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 20. P Figure 21. P Figure 22. P Figure 23. P Figure 24. Thermal fitting model of a single channel HSD in P Figure 25. P Figure 26. P Figure 27. P
2
PAK maximum turn-off current versus inductance
2
PAK PC board
2
PAK Rthj-amb vs PCB copper area in open box free air condition . . . . . . . . . . . . . . . . 19
2
PAK thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . . . . . . . 20
2
PAK package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2
PAK tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2
PAK tape and reel (suffix “TR”). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
versus I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
case
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
OUT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
case
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . 18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2
PAK. . . . . . . . . . . . . . . . . . . . . . . . . . 20
4/26 Doc ID 17608 Rev 1
VN920B5-E 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

Figure 2. Configuration diagram (top view)

5
4
3
2
1
DETECTION
DRIVER
OUTPUT C.SENSE
V
CC
INPUT GND
Power CLAMP
OUTPUT
CURRENT LIMITER
VDS LIMITER
I
OUT CURRENT
K
SENSE
P2PAK

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
Doc ID 17608 Rev 1 5/26
resistor
Electrical specifications VN920B5-E

2 Electrical specifications

Figure 3. Current and voltage conventions

I
S
V
I
IN
V
IN
INPUT
CURRENT SENSE

2.1 Absolute maximum ratings

GND
CC
OUTPUT
I
GND
I
OUT
I
SENSE
V
SENSE
V
F
V
OUT
V
CC
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
V
- V
- I
I
OUT
- I
OUT
I
V
CSENSE
CC
CC
gnd
IN
DC supply voltage 41 V
Reverse DC supply voltage - 0.3 V
DC reverse ground pin current - 200 mA
DC output current Internally limited A
Reverse DC output current - 21 A
DC input current +/- 10 mA
Current sense maximum voltage
Electrostatic discharge (human body model: R=1.5KΩ; C = 100 pF)
V
ESD
– INPUT – CURRENT SENSE –OUTPUT –V
CC
E
MAX
Maximum switching energy (L = 0.25 mH; R
L
=0Ω; V
=13.5V; T
bat
jstart
= 150 °C; IL=45A)
Val ue
- 3
+ 15
4000 2000 5000 5000
364 mJ
Unit
V V
V V V V
6/26 Doc ID 17608 Rev 1
VN920B5-E Electrical specifications
Table 3. Absolute maximum ratings (continued)
Symbol Parameter
Val ue
Unit
P
tot
T
j
T
c
T
stg
Power dissipation TC ≤ 25 °C 96.1 W
Junction operating temperature Internally limited °C
Case operating temperature - 40 to 150 °C
Storage temperature - 55 to 150 °C

2.2 Thermal data

Table 4. Thermal data

Symbol Parameter Max. value Unit
R
thj-case
R
thj-lead
R
thj-amb
1. When mounted on a standard single-sided FR-4 board with 0.5cm2 of Cu (at least 35μm thick).
2. When mounted on a standard single-sided FR-4 board with 6cm2 of Cu (at least 35μm thick).
Thermal resistance junction-case 1.3 °C/W
Thermal resistance junction-lead °C/W
Thermal resistance junction-ambient
51.3
37
(2)
(1)
°C/W
°C/W
Doc ID 17608 Rev 1 7/26
Electrical specifications VN920B5-E

2.3 Electrical characteristics

Values specified in this section are for 8 V < V
< 36 V; -40 °C < Tj < 150 °C, unless
CC
otherwise 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)
I
L(off4)
Operating supply voltage 5.5 13 36 V
CC
Undervoltage shutdown 3 4 5.5 V
USD
Overvoltage shutdown 36 V
OV
I
= 10 A; Tj = 25 °C 16 mΩ
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
Off-state output current
= 10 A 32 mΩ
I
OUT
= 3 A; V
I
OUT
= 20 mA 41 48 55 V
CC
Off-state; V
= V
V
IN
OUT
Off-state; V
= V
V
IN
OUT
On-state; V
= 0 A; R
I
OUT
= V
IN
OUT
= 0 V; V
IN
V
= V
IN
OUT
= 125 °C
T
j
V
= V
IN
OUT
= 25 °C
T
j
= 6 V 55 mΩ
CC
= 13 V;
CC
= 0 V
= 13 V;
CC
= 0 V; Tj = 25 °C
= 13 V; V
CC
SENSE
= 5 V;
IN
= 3.9 kΩ
= 0 V 0 50 µA
= 3.5 V -75 0 µA
OUT
= 0V; V
= 0 V; V
CC
CC
= 13 V;
= 13 V;
10 25 µA
10 20 µA
5mA
5µA
3µA
Note: V

Table 6. Switching (VCC=13V)

and VOV are correlated. Typical difference is 5V.
CLAMP
Symbol Parameter Test conditions Min. Typ. Max. Unit
Turn-on delay time RL = 1.3 Ω (see Figure 4)50µs
Turn-off delay time RL = 1.3 Ω (see Figure 4)50µs
/dt
Turn-on voltage slope RL = 1.3 Ω (see Figure 4) See Figure 10 V/µs
(on)
/dt
Turn-off voltage slope RL = 1.3 Ω (see Figure 4) See Figure 12 V/µs
(off)
dV
dV
t
d(on)
t
d(off)
OUT
OUT
8/26 Doc ID 17608 Rev 1
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