ST VN920DSP User Manual

VN920DSP

HIGH SIDE DRIVER

Table 1. General Features

Type R

VN920DSP 16 m

■ CMOS COMPATIBLE INPUT

■ ON STATE OPEN LO AD DETECTION

■ OFF STATE OPEN LOAD DETECTION

■ SHOR T E D L O A D PROT E C TION

■ UNDERVOLTAGE AND OVERVOLTAGE

DS(on)

Ω 25 A 36 V

I

out

V

CC

SHUTDOWN

■ PROTECTIO N AGAINST LOSS OF GROUND

■ VERY LOW STAND-BY CURRENT

■ REVERSE BATTERY PROTECTION (*)

DESCRIPTION

The VN920DSP is a monolithic device made by
using STMicroelectronics VIPower M0-3
Technology, intended f or driving any kind of l oad
with one side connected to ground.

Activ e V

pin voltage clamp pro tects the device

CC

against low energy spikes (see ISO7637 transient
compatibility table).

Figure 1. Package

10

1

PowerSO-10

Active current limitation combined with thermal
shutdown and automatic restart protect the device
against overload.

The device detects open load condition both is on
and off state. Output shorted to V

is detected in

CC

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

Table 2. Order Codes

Package Tube Tape and Reel

PowerSO-10

Note: (*) See appl i cation sch em atic at page 9

™

VN920DSP VN920DSP13TR

Rev. 2

1/19October 2004

VN920DSP

Figure 2. Block Diagram

V

CC

OVERVOLTAGE

DETECTION

UNDERVOLTAGE

DETECTION

Power CLAMP

DRIVER

CURRENT LIMITER

ON STATE OPENLOAD

DETECTION

OFF STATE OPENLOAD

AND OUTPUT SHORTED TO V

DETECTION

OUTPUT

CC

GND

INPUT

STATUS

OVERTEMPERATURE

DETECTION

V

CC

CLAMP

LOGIC

Table 3. Absolute Maximum Ratings

Symbol Parameter Value Unit

V

DC Supply Voltage 41 V

CC

- V

- I

- I

I

V

E

Reverse DC Supply Voltage - 0.3 V

CC

DC Reverse Ground Pin Current - 200 mA

GND

I

DC Output Current Internally Limited A

OUT

Reverse DC Output Current - 25 A

OUT

I

DC Input Current +/- 10 mA

IN

DC Status Current +/- 10 mA

STAT

Electrostatic Disch arge (Huma n Body Model: R=1.5 KΩ; C=100pF)

- INPUT

- CURRENT SENSE

ESD

- OUTPUT

- V

CC

Maximum Switching Energy

MAX

(L=0.25mH; R

P

Power Dissipation TC=25°C 96.1 W

tot

T

Junction Operating Temperature Internally Limited °C

j

T

Case Operating Temperature - 40 to 150 °C

c

T

Storage Temperature - 55 to 150 °C

stg

=0Ω; V

L

=13.5V; T

bat

=150ºC; IL=45A)

jstart

4000
4000
5000
5000

362 mJ

V
V
V
V

2/19

VN920DSP

Figure 3. Con fig urat i on Dia g ra m (Top View) & Sugg est ed C o nnections for Unused and N.C. Pins

GROUND
INPUT
STA T US
N.C.
N.C.

V

CC

Connection / Pin Status N.C. Output Input

Floating X X X X
To Ground X Th rough 10KΩ resistor

Figure 4. Current and Voltage Conventions

I

IN

V

IN

INPUT

CURRENT SENSE

GND

6
7
8
9

10

11

V

OUTPUT

CC

5
4
3
2
1

I

OUT

I

SENSE

V

SENSE

OUTPUT
OUTPUT
N.C.
OUTPUT
OUTPUT

I

S

V

F

V

OUT

V

CC

I

GND

Table 4. Thermal Data

Symbol Parameter Value Unit

R

R

Note:

Note:

thj-case

thj-amb

(1)
(2)

Thermal Resistance Junction-case Max 1.3 °C/W

Thermal Resistance Junction-ambient Max 51.3

When mount ed on a standar d si ngle-sid ed F R-4 board with 0.5cm2 of Cu (at least 35µm thick).

When mounte d on a standar d si ngle-side d F R-4 board with 6 cm2 of Cu (at le ast 35µm thick).

(1)

37

(2)

°C/W

3/19

VN920DSP

ELECTRICAL CHARACTERISTICS

(8V<V

Table 5. Power

V

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

CC

Symbol Parameter Test Conditions Min Typ Max Unit

V

CC

V

USD

USDhyst

V

OV

R

ON

I

S

I

L(off1)

I

L(off2)

I

L(off3)

I

L(off4)

Operating Supply Voltage 5.5 13 36 V
Undervoltage Shut-down 3 4 5.5 V
Undervoltage Shut-down

hysteresis

0.5 V

Overvoltage Shut-down 36 V

I

=10A; Tj=25°C

OUT

On State Resistance

=10A

I

OUT

=3A; VCC=6V

I

OUT

Off State; V

Supply Current

Off State; V

Tj=25°C

On State; V

Off State Output Current VIN=V

OUT

Off State Output Current VIN=0V; V
Off State Output Current VIN=V
Off State Output Current VIN=V

OUT
OUT

=13V; VIN=V

CC

=13V; VIN=V

CC

OUT
OUT

=0V
=0V;

10

10

=13V; VIN=5V; I

CC

OUT

=0A

=0V 0 50 µA

=3.5V -75 0 µA

OUT

=0V; VCC=13V; Tj =125°C 5 µA
=0V; VCC=13V; Tj =25°C 3 µA

16
30
50
25

20

5

mΩ
mΩ
mΩ

µA

µA

mA

Table 6. Switching (V

CC

=13V)

Symbol Parameter Test Conditions Min Typ Max Unit

dV

dV

t

d(on)

t

d(off)

dt

dt

OUT

(on)

OUT

(off)

Turn-on Delay Time RL=1.3Ω 50 µs
Turn-off Delay Time RL=1.3Ω 50 µs

/

Turn-on Voltage Slope RL=1.3Ω

See

relative

diagram

/

Turn-off Voltage Slope RL=1.3Ω

See

relative

diagram

Table 7. Input Pin

Symbol Parameter Test Conditions M in Typ Max Unit

V

V

V

I

IL

V

IH

I

IH

I(hyst)

ICL

Input Low Level 1.25 V

IL

Low Level Input Current VIN=1.25V 1 µA
Input High Level 3.25 V
High Level Input Current VIN=3.25V 10 µA
Input Hysteresis Voltage 0.5 V

Input Clamp Voltage

I

IN

I

IN

=1mA
=-1mA

6 6.8

-0.7

8V

V/µs

V/µs

V

4/19

VN920DSP

ELECTRICAL CHARACTERISTICS (continued)
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

C

STAT

V

SCL

Table 10. Protections (see note 1)

Symbol Parameter Test Conditions Min Typ Max Unit

T

TSD

T

T

hyst

t

SDL

I

lim

V

demag

Forward on Voltage -I

F

Status Low Output Voltage I
Status Leakage Current Normal Operation V
Status Pin Input

Capacitance
Status Clamp Voltage

=5A; Tj=150°C 0.6 V

OUT

=1.6mA 0.5 V

STAT

=5V 10 µA

STAT

Normal Operation V
I

=1mA

STAT

=-1mA

I

STAT

=5V 100 pF

STAT

66.8

-0.7

Shut-down Temperature 150 175 200 °C
Reset Temperature 135 °C

R

Thermal Hysteresis 7 15 °C
Status delay in overload

condition
Current limitation
Turn-off Output Clamp

Voltage

T

j>TTSD

30 45 75

5.5V<V
I

OUT

<36V

CC

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

8V

20 µs

75

V

A
A

Note: 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.

Table 11. Openload Detection

Symbol Parameter Test Conditions Min Typ Max Unit

I

OL

t

DOL(on)

V

OL

t

DOL(off)

Openload ON State
Detection Threshold
Openload ON State
Detection Delay
Openload OFF State
Voltage Detection
Threshold
Openload Detection Delay

at Turn Off

=5V 300 500 700 mA

V

IN

=0A 200 µs

I

OUT

=0V 1.5 2.5 3.5 V

V

IN

1000 µs

5/19

VN920DSP

Figure 5.

OPEN LOAD STATUS TIMING (with external pull-up)

V

> V

V

V

IN

ST AT

t

DOL(off)

OUT

OL

Figure 6. Switching time Waveforms

V

OUT

I

OUT

t

DOL(on)

< I

OL

V

V

IN

STA T

OVERTEMP ST ATUS TIMING

Tj > T

TSD

t

SDL

t

SDL

6/19

90%

80%

dV

/dt

OUT

dV

OUT

/dt

(on)

(off)

10%

t

V

IN

t

d(on)

t

d(off)

t