Datasheet VN920-E Datasheet (ST)

Features

Typ e R

VN920-E

VN920-12-E

DS(on)

I

OUT

V

CC

16 mΩ 30 A 36 V

VN920-E

Single-channel high side driver

■ CMOS compatible input

■ Proportional load current sense

■ Shorted load protection

■ Under voltage and overvoltage shutdown

■ Overvoltage 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 on page 16)

■ In compliance with the 2002/95/ec european

directive

Table 1. Device summary

PENTAWATT

Description

PENTAWATT

in-line

The VN920-E 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

pin voltage

CC

clamp protects the device against low energy
spikes (see ISO7637 transient compatibility able).

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. Device
automatically turns off in case of ground pin
disconnection.

Order codes

Package

Tube Tape and reel

PENTAWATT VN920-E -

PENTAWATT in-line VN920-12-E -

October 2009 Doc ID 10894 Rev 3 1/23

www.st.com

1

Contents VN920-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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

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

4 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1 ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1.1 PENTAWATT (vertival) mechanical data . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1.2 PENTAWATT (in-line) mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.2 PENTAWATT packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2/23 Doc ID 10894 Rev 3

VN920-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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 6. Switching (V

Table 7. Logic inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 8. V

output diode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

CC

Table 9. Protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 10. Current sense (9V £ VCC £ 16V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 11. Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 12. Electrical transient requirements (part 1/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 13. Electrical transient requirements (part 2/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 14. Electrical transient requirements (part 3/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 15. PENTAWATT (vertical) mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Table 16. PENTAWATT (in-line) mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 17. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

=13V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

CC

Doc ID 10894 Rev 3 3/23

List of figures VN920-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. I

OUT/ISENSE

Figure 5. Switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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. On-state resistance vs V
Figure 11. On-state resistance vs T

Figure 12. Input high level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 13. Input low level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 14. Input hysteresis voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 15. Turn-on voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 16. Turn-off voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 17. Overvoltage shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 18. ILIM vs Tcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 19. Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 20. PENTAWATT (vertical) package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 21. PENTAWATT (in-line) package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 22. PENTAWATT tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

versus I

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

OUT

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

CC

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

CASE

4/23 Doc ID 10894 Rev 3

VN920-E Block diagram and pin description

1 Block diagram and pin description

Figure 1. Block diagram

V

CC

V

CC

CLAMP

OVERVOLTAGE

DETECTION

UNDERVOLTAGE

GND

INPUT

LOGIC

OVERTEMPERATURE

DETECTION

Figure 2. Configuration diagram (top view)

DETECTION

DRIVER

Power CLAMP

OUTPUT

CURRENT LIMITER

VDS LIMITER

I

OUT CURRENT

OUTPUT
C

SENSE

V

CC

INPUT
GND

K

SENSE

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

resistor

Doc ID 10894 Rev 3 5/23

Electrical specifications VN920-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 Value Unit

V

CC

- V

CC

- I

gnd

I

OUT

- I

OUT

I

IN

V

CSENSE

V

ESD

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

- 3

+ 15

V
V

Electrostatic discharge
(human body model: R = 1.5KΩ; C = 100pF)
– Input
– Current sense
– Output
–V

CC

4000
2000
5000
5000

V
V
V
V

6/23 Doc ID 10894 Rev 3

VN920-E Electrical specifications

Table 3. Absolute maximum ratings (continued)

Symbol Parameter Value Unit

Maximum switching energy

E

MAX

P

T

T

T

stg

(L = 0.25mH; R

= 45A)

I

L

tot

j

c

Power dissipation TC ≤ 25°C 96.1 W

Junction operating temperature

Case operating temperature - 40 to 150 °C

= 0Ω; V

L

= 13.5V; T

bat

jstart

= 150°C;

Internally

limited

Storage temperature - 55 to 150 °C

mJ

°C

2.2 Thermal data

Table 4. Thermal data

Symbol Parameter

R

thj-case

R

thj-lead

R

thj-amb

Thermal resistance junction-case (max) 1.3 °C/W

Thermal resistance junction-lead (max) - °C/W

Thermal resistance junction-ambient (max) 61.3 °C/W

2.3 Electrical characteristics

Values specified in this section are for 8V < V
stated.

Table 5. Power

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

V

V

R

V

CLAMP

I

L(off1)

Operating supply voltage 5.5 13 36 V

CC

Undervoltage shutdown 3 4 5.5 V

USD

Overvoltage shutdown 36 V

OV

On-state resistance

ON

Clamp voltage I

I

Supply current

S

Off-state output current V

I

= 10A; Tj = 25°C;

OUT

I

= 10A;

OUT

= 3A; V

I

OUT

= 20mA

CC

Off-state; V

= V

V

IN

OUT

Off-state; V

= V

V

IN

OUT

On-state; V
I

= 0A; R

OUT

= V

IN

OUT

Max.

value

< 36V; -40°C < Tj < 150°C, unless otherwise

CC

Unit

16
32

= 6V

CC

(1)

= 13V;

CC

= 0V

= 13V;

CC

= 0V; Tj = 25°C

= 13V; V

CC

SENSE

= V

SENSE

IN

= 3.9 kΩ

= 0V 0 50 µA

41 48 55 V

= 5V;

55

101025

20

5

mΩ
mΩ
mΩ

µA

µA

mA

Doc ID 10894 Rev 3 7/23

Electrical specifications VN920-E

Table 5. Power (continued)

Symbol Parameter Test conditions Min. Typ. Max. Unit

I

L(off2)

I

L(off3)

I

L(off4)

1. V

Table 6. Switching (VCC=13V)

Off-state output current V

Off-state output current

Off-state output current

and VOV are correlated. Typical difference is 5V.

clamp

IN

V

IN

V

CC

V

IN

V

CC

= V

= V

OUT

OUT

= V

= V

SENSE

SENSE

= 13V; Tj = 125°C

= V

OUT

= V

SENSE

= 13V; Tj = 25°C

= 3.5V -75 µA

= 0V;

= 0V;

5µA

3µA

Symbol Parameter Test conditions Min. Typ. Max. Unit

t

d(on)

t

d(off)

dV

OUT

dV

OUT

Table 7. Logic inputs

Turn-on delay time RL = 1.3Ω (see Figure 5)- 50 - µs

Turn-off delay time RL = 1.3Ω (see Figure 5)- 50 - µs

/dt

Turn-on voltage slope RL = 1.3Ω (see Figure 5) - See Figure 15 -V/µs

(on)

/dt

Turn-off voltage slope RL = 1.3Ω (see Figure 5) - See Figure 16 -V/µs

(off)

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

V

I(hyst)

V

V

Input low level voltage 1.25 V

IL

Low level input current V

I

IL

Input high-level voltage 3.25 V

IH

I

High-level input current V

IH

= 1.25V 1 µA

IN

= 3.25V 10 µA

IN

Input hysteresis voltage 0.5 V

Input clamp voltage

ICL

I

IN

I

IN

= 1mA
= - 1mA

66.8

- 0.7

8V

V

Table 8. VCC output diode

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

F

Table 9. Protections

Forward on voltage - I

(1)

OUT

Symbol Parameter Test conditions Min. Typ. Max. Unit

T

TSD

T

T

hyst

I

lim

Shutdown temperature 150 175 200 °C

Reset temperature 135 °C

R

Thermal hysteresis 7 15 °C

V

DC short circuit current

CC

5V < V

8/23 Doc ID 10894 Rev 3

= 2A; Tj = 150°C - - 0.6 V

= 13V

CC

< 36V

30 45 75

75

A
A

VN920-E Electrical specifications

Table 9. Protections

(1)

(continued)

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

demag

V

1. To ensure long term reliability under heavy over-load or short circuit conditions, protection and related
diagnostic signals must be used together with a proper software strategy. If the device operates under
abnormal conditions this software must limit the duration and number of activation cycles.

Table 10. Current sense (9V ≤ V

Turn-off output clamp
voltage

Output voltage drop

ON

limitation

I

OUT

= 2A; V

IN

= 0V;

L = 6mH

I

= 1 A;

OUT

Tj = -40°C...150°C

(1)

≤ 16V)

CC

V

CC

- 41 V

CC

- 48 V

- 55 V

CC

50 mV

Symbol Parameter Test conditions Min. Typ. Max. Unit

I

dK

dK

K

1

1/K1

K

2

2/K2

K

3

I

OUT/ISENSE

Current sense
ratio drift

I

OUT/ISENSE

Current sense
ratio drift

I

OUT/ISENSE

= 1A; V

OUT

= -40°C...150°C

T

j

= 1A; V

I

OUT

= - 40°C...150°C

T

j

I

= 10A; V

OUT

= - 40°C

T

j

= 25°C...150°C

T

j

= 10A; V

I

OUT

= -40°C...150°C

T

j

I

= 30A; V

OUT

= -40°C

T

j

Tj = 25°C...150°C

SENSE

SENSE

SENSE

SENSE

SENSE

= 0.5V;

= 0.5V;

= 4V;

= 4V;

= 4V;

3300 4400 6000

-10 +10 %

4200

4900

6000

4400

4900

5750

-8 +8 %

4200

4900

5500

4400

4900

5250

dK

3/K3

I

SENSE0

V

SENSE

Current sense
ratio drift

Analog sense
leakage current

Max analog
sense output
voltage

= 30A; V

I

OUT

Tj = -40°C...150°C

= 6...16V; I

V

CC

V
T

V
V

= 0V;

SENSE

= -40°C...150°C

j

= 5.5V; I

CC

> 8V, I

CC

OUT

SENSE

OUT

= 5A; R

OUT

= 10A; R

= 4V;

= 0A;

SENSE

SENSE

= 10kΩ

= 10kΩ24

-6 +6 %

010µA

V
V

Sense voltage in

V

SENSEH

over temperature

V

CC

= 13V; R

= 3.9kΩ 5.5 V

SENSE

condition

Analog sense

R

VSENSEH

output
impedance in
over temperature

V

= 13V; Tj > T

CC

output open

TSD

;

400 Ω

condition

t

DSENSE

1. See Figure 4.

2. Current sense signal delay after positive input slope.

Current sense
delay response

To 90% I

SENSE

(2)

500 µs

Doc ID 10894 Rev 3 9/23

Electrical specifications VN920-E

Figure 4. I

I

OUT/ISENSE

OUT/ISENSE

versus I

OUT

6500

6000

5500

max.Tj=25...150°C

5000

min.Tj=25...150°C

4500

4000

3500

3000

0 2 4 6 8 101214161820222426283032

Figure 5. Switching characteristics

I

OUT

max.Tj=-40°C

typical value

min.Tj=-40°C

(A)

V

OUT

90%

t

f

dV

OUT

/dt

(off)

dV

OUT

80%

/dt

(on)

t

r

10%

t

I

SENSE

90%

INPUT

t

d(on)

t

DSENSE

t

d(off)

t

t

10/23 Doc ID 10894 Rev 3

VN920-E Electrical specifications

Table 11. Truth table

Conditions Input Output Sense

Normal operation

Over temperature

Undervoltage

Overvoltage

Short circuit to GND

Short circuit to V

CC

L
H

L
H

L
H

L
H

L
H
H

L
H

L

H

Nominal

L
L

V

L
L

L
L

L
L
L

(T

(T

j<TTSD

j>TTSD

H
H

< Nominal

Negative output voltage clamp L L 0

Table 12. Electrical transient requirements (part 1/3)

ISO T/R

Test level

7637/1

Test pulse

I II III IV Delays and impedance

1 - 25V - 50V - 75V - 100V 2ms, 10Ω

0

0

SENSEH

0
0

0
0

0

) V

SENSEH

0

) 0

2 + 25V + 50V + 75V + 100V 0.2ms, 10Ω

3a - 25V - 50V - 100V - 150V 0.1µs, 50Ω

3b + 25V + 50V + 75V + 100V 0.1µs, 50Ω

4 - 4V - 5V - 6V - 7V 100ms, 0.01Ω

5 + 26.5V + 46.5V + 66.5V + 86.5V 400ms, 2Ω

Table 13. Electrical transient requirements (part 2/3)

ISO 7637-2: 2004(E)

Test pulse

I II III IV

Test level results

1 CCCC

2 CCCC

3a CCCC

3b CCCC

4 CCCC

5CEEE

Doc ID 10894 Rev 3 11/23

Electrical specifications VN920-E

Table 14. Electrical transient requirements (part 3/3)

Class Contents

C All functions of the device are performed as designed after exposure to disturbance.

E

One or more functions of the device are not performed as designed after exposure to
disturbance and cannot be returned to proper operation without replacing the device.

12/23 Doc ID 10894 Rev 3

VN920-E Electrical specifications

Figure 6. Waveforms

NORMAL OPERATION

INPUT

LOAD CURRENT

SENSE

UNDERVOLTAGE

V

CC

INPUT

LOAD CURRENT

SENSE

V

CC

INPUT
LOAD CURRENT

SENSE

V

USD

V

OV

V

> V

CC

USD

V

USDhyst

OVERVOLTAGE

V

OVhyst

SHORT TO GROUND

INPUT

LOAD CURRENT
LOAD VOLTAGE

SENSE

SHORT TO V

CC

INPUT

LOAD VOLTAGE
LOAD CURRENT

SENSE

T

j

T
T

<Nominal

TSD

R

OVERTEMPERATURE

<Nominal

INPUT

LOAD CURRENT

V

SENSE

I

SENSE

SENSEH

=

R

SENSE

Doc ID 10894 Rev 3 13/23

Electrical specifications VN920-E

2.4 Electrical characteristics curves

k

Figure 7. Off-state output current Figure 8. High level input current

Figure 9. Input clamp voltage Figure 10. On-state resistance vs V

Figure 11. On-state resistance vs T

CASE

Figure 12. Input high level voltage

CC

14/23 Doc ID 10894 Rev 3

VN920-E Electrical specifications

Figure 13. Input low level voltage Figure 14. Input hysteresis voltage

Figure 15. Turn-on voltage slope Figure 16. Turn-off voltage slope

Figure 17. Overvoltage shutdown Figure 18. I

LIM

vs T

case

Doc ID 10894 Rev 3 15/23

Application information VN920-E

3 Application information

Figure 19. Application schematic

+5V

GND

V

CC

OUTPUT

D

GND

R

prot

INPUT

R

μ

C

prot

R

SENSE

CURRENT SENSE

GND

R

V

GND

3.1 GND protection network against reverse battery

3.1.1 Solution 1: resistor in the ground line (R

This can be used with any type of load.

GND

only)

D

ld

The following is an indication on how to dimension the R

1. R

2. R

where - I

≤ 600mV / (I

GND

≥ (- VCC) / (- I

GND

is the DC reverse ground pin current and can be found in the absolute

GND

S(on)max

GND

).

)

maximum rating section of the device datasheet.

Power Dissipation in R

P

= (- VCC)2/ R

D

GND

GND

(when V

CC

This resistor can be shared amongst several different HSDs. Please note that the value of
this resistor should be calculated with formula (1) where I
maximum on-state currents of the different devices.

Please note that if the microprocessor ground is not shared by the device ground then the
R

will produce a shift (I

GND

values. This shift will vary depending on how many devices are ON in the case of several

S(on)max

* R

high-side drivers sharing the same R

If the calculated power dissipation leads to a large resistor or several devices have to share
the same resistor then ST suggests to utilize Solution 2 (see below).

16/23 Doc ID 10894 Rev 3

resistor.

GND

< 0: during reverse battery situations) is:

S(on)max

) in the input thresholds and the status output

GND

.

GND

becomes the sum of the

VN920-E Application information

3.1.2 Solution 2: diode (D

A resistor (R

= 1kΩ) should be inserted in parallel to D

GND

) in the ground line

GND

inductive load.

This small signal diode can be safely shared amongst several different HSDs. Also in this
case, the presence of the ground network will produce a shift (≈600mV) in the input
threshold and in the status output values if the microprocessor ground is not common to the
device ground. This shift will not vary if more than one HSD shares the same diode/resistor
network.

Series resistor in INPUT lines is also required to prevent that, during battery voltage
transient, the current exceeds the absolute maximum rating.

Safest configuration for unused INPUT pin is to leave it unconnected, while unused SENSE
pin has to be connected to ground pin.

3.2 Load dump protection

Dld is necessary (voltage transient suppressor) if the load dump peak voltage exceeds the
V

max DC rating. The same applies if the device is subject to transients on the VCC line

CC

that are greater than the ones shown in the ISO T/R 7637/1 table.

3.3 MCU I/Os protection

if the device drives an

GND

If a ground protection network is used and negative transient are present on the VCC line,
the control pins will be pulled negative. ST suggests to insert a resistor (R

) in line to

prot

prevent the µC I/Os pins to latch-up.

The value of these resistors is a compromise between the leakage current of μC and the
current required by the HSD I/Os (Input levels compatibility) with the latch-up limit of μC
I/Os.

-V

CCpeak/Ilatchup

≤ R

prot

≤ (V

OHµC-VIH-VGND

) / I

IHmax

Calculation example:

For V

5kΩ ≤ R

Recommended values: R

CCpeak

prot

= - 100V and I

≤ 65kΩ.

latchup

prot

≥ 20mA; V

=10kΩ.

OHµC

≥ 4.5V

Doc ID 10894 Rev 3 17/23

Package and packing information VN920-E

4 Package and packing information

4.1 ECOPACK® packages

In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK

®

packages, depending on their level of environmental compliance. ECOPACK®

specifications, grade definitions and product status are available at: www.st.com

ECOPACK

®

is an ST trademark.

4.1.1 PENTAWATT (vertival) mechanical data

Figure 20. PENTAWATT (vertical) package dimensions

.

Table 15. PENTAWATT (vertical) mechanical data

Symbol

Min Typ Max

A 4.8

C 1.37

D2.4 2.8

D1 1.2 1.35

E 0.35 0.55

F 0.8 1.05

18/23 Doc ID 10894 Rev 3

millimeters

VN920-E Package and packing information

Table 15. PENTAWATT (vertical) mechanical data (continued)

millimeters

Symbol

Min Typ Max

F1 1 1.4

G 3.2 3.4 3.6

G1 6.6 6.8 7

H2 10.4

H3 10.05 10.4

L 17.85

L1 15.75

L2 21.4

L3 22.5

L5 2.6 3

L6 15.1 15.8

L7 6 6.6

M4.5

M1 4

Diam. 3.65 3.85

Doc ID 10894 Rev 3 19/23

Package and packing information VN920-E

4.1.2 PENTAWATT (in-line) mechanical data

Figure 21. PENTAWATT (in-line) package dimensions

Table 16. PENTAWATT (in-line) mechanical data

millimeters

Symbol

Min Typ Max

A 4.3 4.8

C1.17 1.37

D2.4 2.8

E0.35 0.55

F 0.8 1.05

F2 1.1 1.4

F3 1.25 1.55

G 3.2 3.6

G1 6.6 7

H1 9.3 9.7

H2 10.4

H3 10.05 10.4

L2 23.05 23.8

L3 25.3

20/23 Doc ID 10894 Rev 3

VN920-E Package and packing information

Table 16. PENTAWATT (in-line) mechanical data (continued)

millimeters

Symbol

Min Typ Max

L4 0.9 2.9

L5 2.6 3

L6 15.1 15.8

L7 6 6.6

V4 90°

Diam. 3.65 3.85

4.2 PENTAWATT packing information

Figure 22. PENTAWATT tube shipment (no suffix)

Base Q.ty 50
Bulk Q.ty 1000

B

C

Tube length (± 0.5) 532
A 18
B 33.1
C (± 0.1) 1

All dimensions are in mm.

A

Doc ID 10894 Rev 3 21/23

Revision history VN920-E

5 Revision history

Table 17. Document revision history

Date Revision Changes

22-Oct-2004 1 Initial release.

22-Sep-2009 2 Removed all the references to VN920B5-E and VN920SO-E

Added PENTAWATT in-line package:

08-Oct-2009 3

– UpdatedTable 1: Device summary.
– Added Section 4.1.2: PENTAWATT (in-line) mechanical data.

22/23 Doc ID 10894 Rev 3

VN920-E

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Doc ID 10894 Rev 3 23/23