ST VN920 User Manual

VN920

Single channel high-side solid-state relay

Features

Type	RDS(on)	IOUT	VCC
VN920
VN920-B5	16 mΩ	30 A	36 V
VN920SO

■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 VCC

■Very low standby power dissipation

■Reverse battery protected (see Application schematic )

Table 1. Device summary

PENTAWATT P2PAK

SO-16L

Description

The VN920 is a monolithic device designed in STMicroelectronics VIPower M0-3 technology. The VN920 is intended for driving any type of load with one side connected to ground. The active VCC pin voltage clamp protects the device 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.

Package		Order codes
	Tube		Tape and reel
PENTAWATT	VN920		-
P2PAK	VN920-B5		VN920-B513TR
SO-16L	VN920SO		VN920SO13TR

December 2008

Rev 5

1/34

www.st.com

Contents	VN920

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 P2PAK maximum demagnetization energy (VCC = 13.5V) . . . . . . . . . . . 18 3.5 SO-16L maximum demagnetization energy (VCC = 13.5V) . . . . . . . . . . . 19

4	Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		20
	4.1	SO-16L thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	20
	4.2	P2PAK thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	22
5	Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		25
	5.1	ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	25
	5.2	PENTAWATT mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	26
	5.3	P2PAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	28
	5.4	SO-16L packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	30
	5.5	PENTAWATT packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	31
	5.6	P2PAK packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	31
6	Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		33

2/34

VN920	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 (VCC=13V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table 7. Logic inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 8. Current sense (9V ≤VCC ≤16V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 9. VCC output diode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Table 10. Protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 11. Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Table 12. Electrical transient requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 13. SO-16L thermal parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Table 14. P2PAK thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 15. SO-16L mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Table 16. PENTAWATT mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Table 17. P2PAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table 18. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3/34

List of figures	VN920

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. IOUT/ISENSE versus IOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 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. P2PAK maximum turn-off current versus inductance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 21. SO-16L maximum turn-off current versus inductance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 22. SO-16L PC board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 23. SO-16L Rthj-amb Vs PCB copper area in open box free air condition . . . . . . . . . . . . . . . 20 Figure 24. SO-16L thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 25. Thermal fitting model of a single channel HSD in SO-16L . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 26. P2PAK PC board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 27. P2PAK Rthj-amb Vs. PCB copper area in open box free air condition . . . . . . . . . . . . . . . 23 Figure 28. P2PAK thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 29. Thermal fitting model of a single channel HSD in P2PAK. . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 30. SO-16L package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 31. PENTAWATT package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 32. P2PAK package dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 33. SO-16L tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Figure 34. SO-16L tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 35. PENTAWATT tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Figure 36. P2PAK tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Figure 37. P2PAK tape and reel (suffix “13TR”). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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VN920	Block diagram and pin description

1 Block diagram and pin description

Figure 1. Block diagram

VCC

	VCC	OVERVOLTAGE
	CLAMP	DETECTION
		UNDERVOLTAGE
		DETECTION
GND		Power CLAMP
		DRIVER
INPUT	LOGIC		OUTPUT
		CURRENT LIMITER
		VDS LIMITER
		IOUT	CURRENT
		K	SENSE
	OVERTEMPERATURE
	DETECTION

Figure 2. Configuration diagram (top view)

VCC

V

1

16

5

OUTPUT

CC

OUTPUT

N.C.

4

C.SENSE

GND

OUTPUT

3

VCC

INPUT

OUTPUT

2

INPUT

C.SENSE

OUTPUT

1

GND

N.C.

OUTPUT

N.C.

OUTPUT

V

8

9

VCC

CC

P2PAK/ PENTAWATT

SO-16L

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	X		Through 10KΩ
		resistor			resistor

5/34

Electrical specifications	VN920

2 Electrical specifications

Figure 3. Current and voltage conventions

IS

VCC

IOUT

VF

VCC

IIN

OUTPUT

VOUT

INPUT

VIN

ISENSE

CURRENT SENSE

GND

VSENSE

IGND

2.1Absolute 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
			SO-16L	PENTAWATT	P2PAK
	VCC	DC supply voltage		41		V
	- VCC	Reverse DC supply voltage		- 0.3		V
	- Ignd	DC reverse ground pin current		- 200		mA
	IOUT	DC output current		Internally limited		A
	- IOUT	Reverse DC output current		- 21		A
	IIN	DC input current		+/- 10		mA
	VCSENSE	Current sense maximum voltage		- 3		V
				+ 15		V
		Electrostatic discharge
		(human body model: R = 1.5KΩ;
		C = 100pF)
	VESD	INPUT		4000		V
		CURRENT SENSE		2000		V
		OUTPUT		5000		V
		VCC		5000		V

6/34

VN920				Electrical specifications
	Table 3.	Absolute maximum ratings (continued)
	Symbol	Parameter		Value		Unit
			SO-16L	PENTAWATT	P2PAK
		Maximum switching energy
	EMAX	(L = 0.25mH; RL= 0Ω;	352		364	mJ
		Vbat = 13.5V; Tjstart = 150ºC;
		IL = 45A)
	Ptot	Power dissipation TC ≤25°C	8.3	96.1	96.1	W
	Tj	Junction operating temperature		Internally limited		°C
	Tc	Case operating temperature		- 40 to 150		°C
	Tstg	Storage temperature		- 55 to 150		°C

2.2Thermal data

	Table 4.	Thermal data
	Symbol	Parameter			Max. value		Unit
			SO-16L		PENTAWATT	P2PAK
	Rthj-case	Thermalresistance	-		1.3	1.3	°C/W
		junction-case
	Rthj-lead	Thermalresistance	15		-		°C/W
		junction-lead
	Rthj-amb	Thermalresistance	65(1)		61.3	51.3(2)	°C/W
		junction-ambient	48	(3)		(4)	°C/W
						37

1.When mounted on a standard single-sided FR-4 board with 0.5cm2 of Cu (at least 35 m thick) connected to all VCC pins.

2.When mounted on a standard single-sided FR-4 board with 0.5cm2 of Cu (at least 35 m thick).

3.When mounted on a standard single-sided FR-4 board with 6cm2 of Cu (at least 35 m thick) connected to all VCC pins.

4.When mounted on a standard single-sided FR-4 board with 6cm2 of Cu (at least 35 m thick).

7/34

Electrical specifications	VN920

2.3Electrical characteristics

Values specified in this section are for 8V < VCC < 36V; -40°C < Tj < 150°C, unless otherwise stated.

Table 5.

Power

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VCC

Operating supply voltage

5.5

13

36

V

VUSD

Under-voltage shutdown

3

4

5.5

V

VOV

Over-voltage shutdown

36

V

IOUT = 10A; Tj = 25°C;

16

mΩ

RON

On-state resistance

IOUT = 10A;

32

mΩ

IOUT = 3A; VCC = 6V

55

mΩ

VCLAMP

Clamp voltage

ICC = 20mA

41

48

55

V

Off-state; VCC = 13V;

VIN = VOUT = 0V

10

25

µA

IS

Supply current

Off-state; VCC = 13V;

VIN = VOUT = 0V; Tj = 25°C

10

20

µA

On-state; VCC = 13V; VIN = 5V;

IOUT = 0A; RSENSE = 3.9 kΩ

5

mA

IL(off1)

Off-state output current

VIN = VOUT = 0V

0

50

µA

IL(off2)

Off-state output current

VIN = 0V; VOUT = 3.5V

-75

0

µA

IL(off3)

Off-state output current

VIN = VOUT = 0V; VCC = 13V;

5

µA

Tj = 125°C

IL(off4)

Off-state output current

VIN = VOUT = 0V; VCC = 13V;

3

µA

Tj = 25°C

Note:

VCLAMP and VOV are correlated. Typical difference is 5V.

Table 6.

Switching (VCC=13V)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

td(on)

Turn-on delay time

RL = 1.3Ω (see Figure 4.)

50

µs

td(off)

Turn-off delay time

RL = 1.3Ω (see Figure 4.)

50

µs

dVOUT/dt(on)

Turn-on voltage slope

RL = 1.3Ω (see Figure 4.)

See Figure 10.

V/µs

dVOUT/dt(off)

Turn-off voltage slope

RL = 1.3Ω (see Figure 4.)

See Figure 12.

V/µs

8/34

VN920

Electrical specifications

Table 7.

Logic inputs

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VIL

Input low level voltage

1.25

V

IIL

Low level input current

VIN = 1.25V

1

µA

VIH

Input high-level voltage

3.25

V

IIH

High-level input current

VIN = 3.25V

10

µA

VI(hyst)

Input hysteresis voltage

0.5

V

VICL

Input clamp voltage

IIN = 1mA

6

6.8

8

V

IIN = - 1mA

- 0.7

V

Table 8.

Current sense (9V ≤VCC ≤16V)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

K1

IOUT/ISENSE

IOUT = 1A; VSENSE = 0.5V;

3300

4400

6000

Tj = -40°C...150°C

dK1/K1

Current sense

IOUT = 1A; VSENSE = 0.5V;

-10

+10

%

ratio drift

Tj= - 40°C...150°C

IOUT = 10A; VSENSE = 4V;

K2

IOUT/ISENSE

Tj = - 40°C

4200

4900

6000

Tj= 25°C...150°C

4400

4900

5750

dK2/K2

Current sense

IOUT = 10A; VSENSE = 4V;

-8

+8

%

ratio drift

Tj = -40°C...150°C

IOUT = 30A; VSENSE = 4V;

K3

IOUT/ISENSE

Tj = -40°C

4200

4900

5500

Tj = 25°C...150°C

4400

4900

5250

dK3/K3

Current sense

IOUT = 30A; VSENSE = 4V;

-6

+6

%

ratio drift

Tj = -40°C...150°C

Analog sense

VCC = 6...16V; IOUT = 0A;

ISENSE0

VSENSE = 0V;

current

Tj = -40°C...150°C

0

10

µA

Max analog

VCC = 5.5V; IOUT = 5A;

RSENSE = 10kΩ

2

V

VSENSE

sense output

VCC > 8V, IOUT = 10A;

voltage

RSENSE = 10kΩ

4

V

Sense voltage in

VCC = 13V; RSENSE = 3.9kΩ

VSENSEH

over-temperature

5.5

V

condition

9/34

Electrical specifications							VN920
	Table 8.	Current sense (9V ≤VCC ≤16V) (continued)
	Symbol	Parameter	Test conditions	Min.	Typ.	Max.		Unit
		Analog sense
		output	VCC = 13V; Tj > TTSD;					Ω
	RVSENSEH	impedance in			400
			output open
		over-temperature
		condition
		Current sense	(1)
	tDSENSE	delay response	To 90% ISENSE			500		µs

1. Current sense signal delay after positive input slope.

Table 9.

VCC output diode

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VF

Forward on voltage

- IOUT = 5A; Tj = 150°C

0.6

V

Table 10.

Protections(1)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

TTSD

Shutdown temperature

150

175

200

°C

TR

Reset temperature

135

°C

Thyst

Thermal hysteresis

7

15

°C

Ilim

Current limitation

VCC = 13V

30

45

75

A

5V < VCC < 36V

75

A

Turn-off output clamp

IOUT = 2 A;

Vdemag

VIN = 0V;

VCC - 41

VCC - 48

VCC - 55

V

voltage

L = 6mH

VON

Output voltage drop

IOUT = 1 A;

50

mV

limitation

Tj = -40°C...150°C

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.

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VN920

Electrical specifications

Table 11.

Truth table

Conditions

Input

Output

Sense

Normal operation

L

L

0

H

H

Nominal

Over-temperature

L

L

0

H

L

VSENSEH

Under-voltage

L

L

0

H

L

0

Over-voltage

L

L

0

H

L

0

L

L

0

Short circuit to GND

H

L

(Tj<TTSD) 0

H

L

(Tj>TTSD) VSENSEH

Short circuit to VCC

L

H

0

H

H

< Nominal

Negative output voltage clamp

L

L

0

Table 12.

Electrical transient requirements

ISO T/R

Test level

7637/1

I

II

III

IV

Delays and impedance

Test pulse

1

- 25V(1)

- 50V(1)

- 75V(1)

- 100V(1)

2ms, 10Ω

2

+ 25V(1)

+ 50V(1)

+ 75V(1)

+ 100V(1)

0.2ms, 10Ω

3a

- 25V(1)

- 50V(1)

- 100V(1)

- 150V(1)

0.1µs, 50Ω

3b

+ 25V(1)

+ 50V(1)

+ 75V(1)

+ 100V(1)

0.1µs, 50Ω

4

- 4V(1)

- 5V(1)

- 6V(1)

- 7V(1)

100ms, 0.01Ω

5

+ 26.5V(1)

+ 46.5V(2)

+ 66.5V(2)

+ 86.5V(2)

400ms, 2Ω

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

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

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