ST VN750SMP-E User Manual

Features

Typ e R

DS(on)

VN750SMP-E 55 mΩ 6 A 36 V

I

OUT

V

VN750SMP-E

High side driver

CC

■ ECOPACK

■ Automotive Grade: compliance with AEC

®

: lead free and RoHS compliant

guidelines

■ CMOS compatible input

■ On-state open-load detection

■ Off-state open-load detection

■ Shorted load protection

■ Undervoltage and overvoltage shutdown

■ Protection against loss of ground

■ Very low standby current

■ Reverse battery protection (see Application

schematic on page 16

■ In compliance with the 2002/95/EC european

)

directive

SO-8

Description

The VN750SMP-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
against low energy spikes (see ISO7637 transient
compatibility table). Active current limitation
combined with thermal shutdown and automatic
restart help protect the device against overload.

The device detects open-load condition in on and
off-state. The open-load threshold is aimed at
detecting the 5W/12V standard bulb as an open­load fault in the on-state. Output shorted to V
detected in the off-state. Device automatically
turns off in case of ground pin disconnection.

pin voltage clamp protects the device

CC

CC

is

Table 1. Device summary

Package

Order codes

Tube Tape and reel

SO-8 VN750SMP-E VN750SMPTR-E

November 2009 Doc ID 16812 Rev 1 1/27

www.st.com

1

Contents VN750SMP-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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.5 GND protection network against reverse battery . . . . . . . . . . . . . . . . . . . 16

2.5.1 Solution 1: resistor in the ground line (RGND only) . . . . . . . . . . . . . . . . 16

2.5.2 Solution 2: diode (DGND) in the ground line . . . . . . . . . . . . . . . . . . . . . 17

2.6 Load dump protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.7 Microcontroller I/Os protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.8 Open-load detection in off-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.9 SO-8 maximum demagnetization energy (V

= 13.5 V) . . . . . . . . . . . . . 19

CC

3 Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1 SO-8 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.1 ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.2 SO-8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.3 Packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2/27 Doc ID 16812 Rev 1

VN750SMP-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. Input pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 8. V

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

CC

Table 9. Status pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 10. Protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 11. Open-load detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 12. Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 13. Electrical transient requirements on V
Table 14. Electrical transient requirements on V
Table 15. Electrical transient requirements on V

Table 16. SO-8 thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 17. SO-8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 18. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

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

CC

pin (part 1/3). . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

CC

pin (part 2/3). . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

CC

pin (part 3/3). . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

CC

Doc ID 16812 Rev 1 3/27

List of figures VN750SMP-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. Status timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 5. Switching time waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 6. Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 7. Off-state output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 8. High level input current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 9. Input clamp voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 10. Status leakage current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 11. Status low output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 12. Status clamp voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 13. On-state resistance vs T
Figure 14. On-state resistance vs V

Figure 15. Open-load on-state detection threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 16. Open-load off-state voltage detection threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 17. Input high level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 18. Input low level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 19. Turn-on voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 20. Turn-off voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 21. Overvoltage shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 22. I

lim

vs T

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

case

Figure 23. Input hysteresis voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 24. Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 25. Open-load detection in off-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 26. SO-8 maximum turn-off current versus inductance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 27. SO-8 PC board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 28. Rthj-amb vs PCB copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 20

Figure 29. SO-8 thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 30. SO-8 thermal fitting model of a single channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 31. SO-8 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 32. SO-8 tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 33. SO-8 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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

case

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

CC

4/27 Doc ID 16812 Rev 1

VN750SMP-E Block diagram and pin description

1 Block diagram and pin description

Figure 1. Block diagram

V

CC

OVERVOLTAGE

AND OUTPUT SHORTED TO V

GND

INPUT

STATUS

OVERTEMPERATURE

DETECTION

V

CC

CLAMP

LOGIC

Figure 2. Configuration diagram (top view)

V

CC

OUTPUT
OUTPUT

V

CC

5
6

7

8

DETECTION

UNDERVOLTAGE

DETECTION

Power CLAMP

DRIVER

CURRENT LIMITER

ON STATE OPENLOAD

DETECTION

OFF STATE OPENLOAD

DETECTION

4

STAT_DIS

3

STATUS

2

INPUT

1

GND

OUTPUT

CC

SO-8

Table 2. Suggested connections for unused and not connected pins

Connection/pin Status N.C. Output Input

Floating X X X X

To ground X Through 10 KΩ resistor

Doc ID 16812 Rev 1 5/27

Electrical specifications VN750SMP-E

2 Electrical specifications

Figure 3. Current and voltage conventions

I

S

V

I

IN

INPUT

I

STAT

STATUS

V

IN

V

STAT

2.1 Absolute maximum ratings

V

CC

GND

OUTPUT

I

GND

F

I

OUT

V

CC

V

OUT

Stress values that exceed those listed in the “Absolute maximum ratings” table can cause
permanent damage to the device. These are stress ratings only, and operation of the device
at these, or any other conditions greater than 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 documents.

Table 3. Absolute maximum ratings

Symbol Parameter

V

- V

- I

I

- I

I

STAT

CC

CC

gnd

OUT

OUT

I

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 - 6 A

DC input current +/- 10 mA

DC status current +/- 10 mA

Electrostatic discharge
(human body model: R=1.5 KΩ; C=100pF)

V

ESD

- Input

- Status

- Output

- V

CC

Value

4000
4000
5000
5000

Unit

V
V
V
V

6/27 Doc ID 16812 Rev 1

VN750SMP-E Electrical specifications

Table 3. Absolute maximum ratings (continued)

Symbol Parameter

Maximum switching energy

E

MAX

(L=1.3mH; RL=0Ω; V

=13.5V; T

bat

IL=10A)

P

tot

T

j

T

stg

Power dissipation TC=25°C 4.2 W

Junction operating temperature Internally limited °C

Storage temperature - 55 to 150 °C

jstart

=150ºC;

Value

90 mJ

Unit

2.2 Thermal data

Table 4. Thermal data

Symbol Parameter Max. value Unit

R

thj-case

R

thj-amb

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

2. When mounted on a standard single-sided FR-4 board with 2cm2 of Cu (at least 35µm thick) connected to
all VCC pins. Horizontal mounting and no artificial air flow.

Thermal resistance junction-case 1.7 °C/W

Thermal resistance junction-ambient 93

pins. Horizontal mounting and no artificial air flow.

CC

2.3 Electrical characteristics

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

Table 5. Power

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

CC

V

USD

V

USDhyst

V

OV

R

ON

I

S

I

L(off1)

I

L(off2)

Operating supply voltage 5.5 13 36 V

Undervoltage shutdown 3 4 5.5 V

Undervoltage shutdown
hysteresis

Overvoltage shutdown 36 V

On-state resistance

Supply current

Off-state output current VIN=V

Off-state output current VIN=0V; V

I

=2 A; Tj=25 °C; VCC> 8 V

OUT

=2 A; VCC>8 V

I

OUT

Off-state; V

=13 V; VIN=V

CC

Off-state; VCC=13 V; VIN=V

=25 °C

T

j

On-state; V
I

=0 A

OUT

OUT

=13 V; VIN=5 V;

CC

=0 V 0 50 µA

=3.5 V -75 0 µA

OUT

OUT

OUT

=0 V
=0 V;

(1)

(2)

82

°C/W

0.5 V

55

110mΩmΩ

10
10

2

25
20

3.5

µA
µA

mA

Doc ID 16812 Rev 1 7/27

Electrical specifications VN750SMP-E

Table 5. Power (continued)

Symbol Parameter Test conditions Min. Typ. Max. Unit

I

L(off3)

I

L(off4)

Table 6. Switching (VCC=13 V)

Off-state output current VIN=V

Off-state output current VIN=V

=0 V; Vcc=13 V; Tj =125 °C 5 µA

OUT

=0 V; Vcc=13 V; Tj =25 °C 3 µA

OUT

Symbol Parameter Test conditions Min. Typ. Max. Unit

t

d(on)

t

d(off)

dV

OUT

dV

OUT

Table 7. Input pin

Turn-on delay time

Turn-off delay time

/dt

Turn-on voltage slope

(on)

/dt

Turn-off voltage slope

(off)

L

V

=1.3 V

OUT

R

=6.5 Ω from VIN falling edge to

L

V

=11.7 V

OUT

=6.5 Ω from V

R

L

V

=10.4 V

OUT

=6.5 Ω from V

R

L

=1.3 V

V

OUT

=1.3 V to

OUT

=11.7 V to

OUT

-40-µs

-30-µs

See

-

relative

-V/µs

diagram

See

-

relative

-V/µs

diagram

=6.5 Ω from VIN rising edge to

R

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

IL

I

IL

V

IH

I

IH

V

hyst

V

ICL

Input low level 1.25 V

Low level input current VIN=1.25 V 1 µA

Input high level 3.25 V

High level input current VIN=3.25 V 10 µA

Input hysteresis voltage 0.5 V

Input clamp voltage

I

=1 mA

IN

=-1 mA

I

IN

66.8

-0.7

8V

V

Table 8. VCC output diode

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

Table 9. Status pin

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

STAT

I

LSTAT

8/27 Doc ID 16812 Rev 1

Forward on voltage -I

F

Status low output voltage I

OUT

STAT

Status leakage current Normal operation; V

=1.4 A; Tj=150 °C 0.6 V

=1.6 mA 0.5 V

=5 V 10 µA

STAT

VN750SMP-E Electrical specifications

Table 9. Status pin (continued)

Symbol Parameter Test conditions Min. Typ. Max. Unit

C

STAT

V

SCL

Table 10. Protections

Status pin input
capacitance

Status clamp voltage

(1)

Normal operation; V

I

=1mA

STAT

=-1mA

I

STAT

=5 V 100 pF

STAT

66.8

-0.7

8V

Symbol Parameter Test conditions Min. Typ. Max. Unit

T

TSD

T

R

T

hyst

t

SDL

I

lim

V

demag

1. To ensure long term reliability under heavy overload 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.

Shutdown temperature 150 175 200 °C

Reset temperature 135 °C

Thermal hysteresis 7 15 °C

Status delay in overload
condition

Current limitation 5.5 V<VCC<36 V

Turn-off output clamp
voltage

T

j>Tjsh

6101212A

I

=2 A; VIN=0 V; L=6 mH VCC-41 VCC-48 VCC-55 V

OUT

20 ms

V

A

Table 11. Open-load detection

Symbol Parameter Test conditions Min. Typ. Max. Unit

I

OL

t

DOL(on)

V

OL

t

DOL(off)

Open-load on-state
detection threshold

Open-load on-state
detection delay

Open-load off-state
voltage detection
threshold

Open-load detection
delay at turn-off

= 5 V 0.6 0.9 1.2 A

V

IN

= 0 A 200 µs

I

OUT

VIN= 0 V 1.5 2.5 3.5 V

1000 µs

Doc ID 16812 Rev 1 9/27