ST VN920SP User Manual

			VN920SP
			Single channel high-side solid-state relay
Features
Type	RDS(on)	IOUT	VCC
VN920SP	15 mΩ	30 A	10
			36 V
			1
■ CMOS compatible input			PowerSO-10

■Proportional load current sense

■Shorted load protection

	■ Under-voltage and over-voltage shutdown		Description
	■ Over-voltage clamp		The VN920SP is a monolithic device designed in
	■	Thermal shutdown	STMicroelectronics VIPower M0-3 technology.
	■	Current limitation	The VN920SP is intended for driving any type of
			load with one side connected to ground. The
	■ Protection against loss of ground and loss of
			active VCC pin voltage clamp protects the device
		VCC
			against low energy spikes (see ISO7637 transient
	■ Very low standby power dissipation		compatibility table). Active current limitation
	■ Reverse battery protected (see Application		combined with thermal shutdown and automatic
			restart protects the device against over-load.
		schematic )
			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
	Package		Order codes
		Tube		Tape and reel
	PowerSO-10	VN920SP		VN920SP13TR

December 2008

Rev 3

1/26

www.st.com

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

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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 (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. Thermal parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Table 14. PowerSO-10 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Table 15. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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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. 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. 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

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VN920SP	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)

GROUND	6	5	OUTPUT
INPUT	7	4	OUTPUT
C.SENSE	8	3	N.C.
N.C.	9	2	OUTPUT
N.C.	10	1	OUTPUT
	VCC	11

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	X		Through 10KΩ
		resistor			resistor

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Electrical specifications	VN920SP

2 Electrical specifications

Figure 3. Current and voltage conventions

IS

VCC

IOUT

VF

VCC

OUTPUT

IIN

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
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		- 40	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

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VN920SP			Electrical specifications
	Table 3.	Absolute maximum ratings (continued)
	Symbol	Parameter	Value	Unit
		Maximum switching energy
	EMAX	(L = 0.25mH; RL= 0Ω; Vbat = 13.5V;	362	mJ
		Tjstart = 150ºC; IL = 45A)
	Ptot	Power dissipation TC ≤25°C	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
Rthj-case	Thermal resistance junction-case	1.3			°C/W
Rthj-amb	Thermalresistance junction-ambient	51.3(1)		37(2)	°C/W
					°C/W

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).

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Electrical specifications	VN920SP

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;

15

mΩ

RON

On-state resistance

IOUT = 10A;

30

mΩ

IOUT = 3A; VCC = 6V

50

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

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