ST VN5E050AJ-E User Manual

Single channel high side driver with analog current sense

Features

Max supply voltage V

Operating voltage range V

Max On-State resistance R

Current limitation (typ) I

Off state supply current I

1. Typical value with all loads connected.

■ General

– Inrush current active management by

power limitation
– Very low stand-by current
– 3.0V CMOS compatible inputs
– Optimized electromagnetic emissions
– Very low electromagnetic susceptibility
– In compliance with the 2002/95/EC

european directive
– Very low current sense leakage

■ Diagnostic functions

– Proportional load current sense
– High current sense precision for wide

currents range
– Current sense disable
– Off state open load detection
– Output short to V

detection

CC

– Overload and short to ground (power

limitation) indication
– Thermal shutdown indication

■ Protections

– Undervoltage shutdown
– Overvoltage clamp
– Load current limitation
– Self limiting of fast thermal transients
– Protection against loss of ground and loss

of V

CC

– Over-temperature shutdown with

autorestart (thermal shutdown)

CC

CC

ON

LIMH

S

4.5 to 28V

41 V

50 mΩ

27 A

2 µA

(1)

VN5E050AJ-E

for automotive applications

PowerSSO-12

– Reverse battery protected ( see Figure 32.)
– Electrostatic discharge protection

Application

■ All types of resistive, inductive and capacitive

loads

■ Suitable as LED driver

Description

The VN5E050AJ-E is a single channel high-side
driver manufactured in the ST proprietary
VIPower M0-5 technology and housed in the tiny
PowerSSO-12 package. The VN5E050AJ-E is
designed to drive 12V automotive grounded loads
delivering protection, diagnostics and easy 3V
and 5V CMOS compatible interface with any
microcontroller.

The device integrates advanced protective
functions such as load current limitation, inrush
and overload active management by power
limitation, over-temperature shut-off with
auto-restart and over-voltage active clamp. A
dedicated analog current sense pin is associated
with every output channel in order to provide
Ehnanced diagnostic functions including fast
detection of overload and short-circuit to ground
through power limitation indication, over­temperature indication, short-circuit to Vcc
diagnosis and ON & OFF state open load
detection.

The current sensing and diagnostic feedback of
the whole device can be disabled by pulling the
CS_DIS pin high to allow sharing of the external
sense resistor with other similar devices.

March 2008 Rev 1 1/37

www.st.com

37

Contents VN5E050AJ-E

Contents

1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.4 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.5 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.1 GND protection network against reverse battery . . . . . . . . . . . . . . . . . . . 24

3.1.1 Solution 1: resistor in the ground line (RGND only) . . . . . . . . . . . . . . . . 24

3.1.2 Solution 2: diode (D

3.2 Load dump protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.3 MCU I/O protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.4 Current sense and diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.4.1 Short to VCC and OFF state open load detection . . . . . . . . . . . . . . . . . 27

3.5 Maximum demagnetization energy (VCC = 13.5V) . . . . . . . . . . . . . . . . . . 28

) in the ground line . . . . . . . . . . . . . . . . . . . . . . 25

GND

4 Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.1 PowerSSO-12 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.1 ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.2 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.3 Packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

2/37

VN5E050AJ-E List of tables

List of tables

Table 1. Pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Table 2. Suggested connections for unused and not connected pins . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 3. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 4. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 5. Power section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 6. Switching (V

Table 7. Logic inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 8. Protections and diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 9. Current sense (8V<VCC<18V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 10. Open load detection (8V<VCC<18V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 11. Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 12. Electrical transient requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 13. Thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Table 14. PowerSSO-12 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 15. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Table 16. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

= 13V; Tj= 25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

CC

3/37

List of figures VN5E050AJ-E

List of figures

Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 2. Configuration diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 3. Current and voltage conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 4. Current sense delay characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 5. Open load Off-state delay timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 6. Switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 7. Delay response time between rising edge of ouput current and rising edge of current sense

(CS enabled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 8. Output voltage drop limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 9. I

OUT/ISENSE

Figure 10. Maximum current sense ratio drift vs. load current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 11. Normal operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 12. Overload or Short to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 13. Intermittent Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 14. OFF-State Open Load with external circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 15. Short to V
Figure 16. T

evolution in Overload or Short to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

J

Figure 17. Off state output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 18. High level input current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 19. Input clamp level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 20. Input low level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 21. Input high level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 22. Input hysteresis voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 23. On state resistance vs. Tcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 24. On state resistance vs. VCC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 25. Undervoltage shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 26. Turn-On voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 27. ILIMH Vs. Tcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 28. Turn-Off voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 29. CS_DIS high level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 30. CS_DIS clamp voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 31. CS_DIS low level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 32. Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 33. Current sense and diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 34. Maximum turn-Off current versus inductance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 35. PowerSSO-12 PC board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 36. Rthj-amb Vs. PCB copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . 29

Figure 37. PowerSSO-12 thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . 30

Figure 38. Thermal fitting model of a single channel HSD in PowerSSO-12 . . . . . . . . . . . . . . . . . . . 30

Figure 39. PowerSSO-12 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 40. PowerSSO-12 tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 41. PowerSSO-12 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

vs. I

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

CC

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

OUT

4/37

VN5E050AJ-E Block diagram and pin description

1 Block diagram and pin description

Figure 1. Block diagram

V

CC

Signal Clamp

Undervolta ge

IN

CS_
DIS

CS

LOG IC

Table 1. Pin function

C ontrol & Diagnostic

DRIVER

Over

te mp.

V

SENSEH

OVERLOAD PROTECTION

(AC TIVE POWE R LIMITATION)

Name Function

Current

Limitation

Current

Sense

Power
Clamp

V

ON

L im ita tion

OFF State
Open load

OUT

GND

V

CC

Battery connection.

OUTPUT Power output.

GND

INPUT

CURRENT

SENSE

Ground connection. Must be reverse battery protected by an external
diode/resistor network.

Voltage controlled input pin with hysteresis, CMOS compatible. Controls output
switch state.

Analog current sense pin, delivers a current proportional to the load current.

CS_DIS Active high CMOS compatible pin, to disable the current sense pin.

5/37

Block diagram and pin description VN5E050AJ-E

Figure 2. Configuration diagram (top view)

TAB = Vcc

N.C.

GND

INPUT

CURRENT SENSE

CS_DIS

N.C.

Table 2. Suggested connections for unused and not connected pins

Connection /

pin

Floating Not allowed X X X X

Current sense N.C. Output Input CS_DIS

1

2

3

4

5

6

12

11

10

9

8

7

N.C.

OUTPUT

OUTPUT

OUTPUT

OUTPUT

N.C.

To ground

Through 1 KΩ

resistor

X

Through 22 KΩ

resistor

Through 10 KΩ

resistor

Through 10 KΩ

resistor

6/37

VN5E050AJ-E Electrical specifications

2 Electrical specifications

Figure 3. Current and voltage conventions

I

S

V

V

CSD

I

CSD

V

CC

GND

OUTPUT

CURRENT
SENSE

I

GND

CS_DIS

I

IN

IN

INPUT

I

SENSE

V

SENSE

VF

I

OUT

V

CC

V

OUT

Note: V

F

= V

- VCC during reverse battery condition.

OUT

2.1 Absolute 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

V

-V

- I

I

- I

I

-I

CSENSE

V

CSENSE

E

DC supply voltage 41 V

CC

Reverse DC supply voltage 0.3 V

CC

DC reverse ground pin current 200 mA

GND

DC output current Internally limited A

OUT

Reverse DC output current 20 A

OUT

DC input current -1 to 10 mA

I

IN

DC current sense disable input current -1 to 10 mA

CSD

DC reverse CS pin current 200 mA

Current sense maximum voltage

Maximum switching energy (single pulse)

MAX

(L= 3mH; R

=0Ω; V

L

=13.5V; T

bat

jstart

=150ºC; I

OUT

= I

limL

(Typ.) )

V

- 41 to

CC

+V

CC

104 mJ

V

7/37

Electrical specifications VN5E050AJ-E

Table 3. Absolute maximum ratings (continued)

Symbol Parameter Value Unit

Electrostatic discharge
(Human Body Model: R=1.5KΩ; C=100pF)

4000
2000
4000
5000
5000

V
V
V
V
V

V

V

ESD

ESD

T

T

- INPUT

- CURRENT SENSE

- CS_DIS

- OUTPUT

- V

CC

Charge device model (CDM-AEC-Q100-011) 750 V

Junction operating temperature -40 to 150 °C

j

Storage temperature -55 to 150 °C

stg

2.2 Thermal data

Table 4. Thermal data

Symbol Parameter Max. value Unit

R

thj-case

R

thj-amb

Thermal resistance junction-case (with one channel ON) 2.7 °C/W

Thermal resistance junction-ambient See Figure 36. °C/W

8/37

VN5E050AJ-E Electrical specifications

2.3 Electrical characteristics

Values specified in this section are for 8V <VCC< 28V; -40°C< Tj <150°C, unless otherwise
stated.

Table 5. Power section

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

V

V

USDhyst

R

V

I

L(off1)

1. PowerMOS leakage included.

Table 6. Switching (VCC= 13V; Tj= 25°C)

Operating supply

CC

voltage

Undervoltage shutdown 3.5 4.5 V

USD

Undervoltage
shutdown hysteresis

I

= 2 A; Tj= 25°C

OUT

On state resistance

ON

Clamp voltage IS= 20 mA 41 46 52 V

clamp

I

Supply current

S

Off state output current

Output - VCC diode

V

F

voltage

I

= 2 A; Tj= 150°C

OUT

= 2 A; VCC= 5V; Tj= 25°C

I

OUT

Off state; V
VIN=V

On State; V
I

OUT

VIN=V
VIN=V

-I

OUT

CC

OUT=VSENSE=VCSD

CC

=0A

=0V; VCC=13V; Tj=25°C

OUT

=0V; VCC=13V; Tj=125°C

OUT

= 2A; Tj= 150°C 0.7 V

=13V; Tj=25°C;

=0V

=13V; VIN=5V;

4.5 13 28 V

0.5 V

mΩ

50

100

mΩ

65

mΩ

(1)

2

1.5

000.01 3

(1)

5

3µAmA

5

µA

Symbol Parameter Test conditions Min. Typ. Max. Unit

(dV

(dV

t

d(on)

t

d(off)

OUT

OUT

W

W

ON

OFF

Turn- On delay time RL= 6.5Ω (see Figure 6.) 20 µs

Turn- Off delay time RL= 6.5Ω (see Figure 6.) 40 µs

/dt)onTurn- On voltage slope RL= 6.5Ω

/dt)

Turn- Off voltage slope RL= 6.5Ω

off

Switching energy
losses during t

on

Switching energy
losses during t

off

RL= 6.5Ω (see Figure 6.) 0.20 mJ

RL= 6.5Ω (see Figure 6.)0.3 mJ

See

Figure 26.

See

Figure 28.

9/37

V/ µs

V/ µs

Electrical specifications VN5E050AJ-E

Table 7. Logic inputs

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

V

I

V

I(hyst)

V

V

CSDL

I

CSDL

V

CSDH

I

CSDH

V

CSD(hyst)

V

CSCL

Table 8. Protections and diagnostics

Input low level voltage 0.9 V

IL

Low level input current VIN=0.9V 1 µA

I

IL

Input high level voltage 2.1 V

IH

High level input current VIN=2.1V 10 µA

IH

Input hysteresis voltage 0.25 V

Input clamp voltage

ICL

I

IN

I

IN

=1mA

=-1mA

5.5

-0.7

CS_DIS low level voltage 0.9 V

Low level CS_DIS current V

=0.9V 1 µA

CSD

CS_DIS high level voltage 2.1 V

High level CS_DIS current V

=2.1V 10 µA

CSD

CS_DIS hysteresis voltage 0.25 V

CS_DIS clamp voltage

(1)

I

CSD

I

CSD

=1mA

=-1mA

5.5

-0.7

7V

V

7V

V

Symbol Parameter Test conditions Min. Typ. Max. Unit

I

DC short circuit current

limH

Short circuit current

I

limL

during thermal cycling

VCC= 13V

5V < V

V

= 13V; TR<Tj<T

CC

CC

< 28V

TSD

19 27 38

38

7A

A
A

T

T

V

DEMAG

1. To ensure long term reliability under heavy overload or short circuit conditions, protection and related

Shutdown temperature 150 175 200 °C

TSD

Reset temperature TRS + 1 TRS + 5 °C

T

R

Thermal reset of status 135 °C

T

RS

Thermal hysteresis

HYST

(T

Turn- Off output voltage
clamp

Output voltage drop

V

ON

limitation

diagnostic signals must be used together with a proper software strategy. If the device is subjected to
abnormal conditions, this software must limit the duration and number of activation cycles.

TSD-TR

)

I

OUT

10/37

7°C

= 2A; VIN=0; L= 6mH VCC-41 VCC-46 VCC-52 V

I

=0.1A;

OUT

=-40°C...150°C

T

j

25 mV

(see Figure 8.)

VN5E050AJ-E Electrical specifications

Table 9. Current sense (8V<VCC<18V)

Symbol Parameter Test conditions Min. Typ. Max. Unit

I

K

K

dK

1/K1

K

dK

2/K2

K

dK

3/K3

I

SENSE0

I

OL

V

SENSE

=0.05A; V

0

1

I

OUT/ISENSE

I

OUT/ISENSE

Current sense

(1)

ratio drift

2

I

OUT/ISENSE

Current sense

(1)

ratio drift

3

I

OUT/ISENSE

Current sense

(1)

ratio drift

Analog sense

OUT

Tj= -40°C...150°C 1170 2000 3090

I

= 1A; V

OUT

SENSE

Tj= -40°C...150°C

=25°C...150°C

T

j

= 1A; V

I

OUT

= -40 °C to 150 °C

T

J

I

OUT

= -40°C...150°C

T

j

=25°C...150°C

T

j

I

OUT

=-40 °C to 150 °C

T

J

I

OUT

= -40°C...150°C

T

j

= 25°C...150°C

T

j

I

OUT

= -40 °C to 150 °C

T

J

I

OUT

V

CSD

V

CSD

SENSE

= 2A; V

SENSE

= 2A; V

SENSE

= 4A; V

SENSE

= 4A; V

SENSE

=0A; V

SENSE

=5V; VIN=0V; Tj=-40°C to 150°C
=0V; VIN=5V; Tj=-40°C to 150°C

leakage current

I

=2A; V

OUT

V

CSD

SENSE

=5V; VIN=5V; Tj=-40°C to 150°C

Open load ON

= 5V, 8V<VCC<18V

state current
detection
threshold

Max analog sense
output voltage

V

IN

I

SENSE

I

OUT

= 5 µA

=4A; V

CSD

SENSE

=4 V; V

= 4 V; V

= 4V; V

=4V; V

= 4 V; V

=0.5V;V

= 4V; V

CSD

CSD

CSD

CSD

CSD

CSD

CSD

=0V

=0V;

=0V;

=0V;

=0V;

=0V;

=0V;

1575

2000

2750

1575

2000

2465

-10 10 %

1765

2000

2315

1765

2000

2155

-7 7 %

1840

2000

2135

1840

2000

2080

-4 4 %

=0V;

0
0

1
2

=0V;

0

1

420mA

=0V 5 V

µA
µA

µA

V

SENSEH

I

SENSEH

t

DSENSE1H

t

DSENSE1L

Analog sense
output voltage in
fault condition

Analog sense
output current in
fault condition

Delay response
time from falling
edge of CS_DIS
pin

Delay response
time from rising
edge of CS_DIS
pin

(2)

(2)

VCC= 13V; R

VCC= 13V; V

V
I

<4V, 0.5A<Iout<4A

SENSE

= 90% of I

SENSE

= 3.9 KΩ 8V

SENSE

= 5V 9 mA

SENSE

SENSE max

50 100 µs

(see Figure 4.)

V
I

< 4V, 0.5A<Iout<4A

SENSE

= 10% of I

SENSE

SENSE max

520µs

(see Figure 4.)

11/37

Electrical specifications VN5E050AJ-E

Table 9. Current sense (8V<VCC<18V) (continued)

Symbol Parameter Test conditions Min. Typ. Max. Unit

V
I
(see Figure 4.)

V
I
I
I

t

DSENSE2H

∆t

DSENSE2H

Delay response
time from rising
edge of INPUT pin

Delay response
time between
rising edge of
output current and
rising edge of
current sense

Delay response

t

DSENSE2L

time from falling
edge of INPUT pin

1. Parameter guaranteed by design; it is not tested.

2. Fault condition includes: power limitation, overtemperature and open load OFF state detection.

Table 10. Open load detection (8V<VCC<18V)

V
I
(see Figure 4.)

< 4V, 0.5A<Iout<4A

SENSE

= 90% of I

SENSE

<4V,

SENSE

=90% of I

SENSE

= 90% of I

OUT

OUTMAX

=2A (see Figure 7)

< 4V, 0.5A<Iout<4A

SENSE

= 10% of I

SENSE

SENSE max

SENSEMAX,

OUTMAX

SENSE max

80 250 µs

40 µs

100 250 µs

Symbol Parameter Test conditions Min. Typ. Max. Unit

Open load OFF state

V

voltage detection

OL

VIN = 0V 2

threshold

See

Figure 5.

4V

Output short circuit to

t

DSTKON

VCC detection delay at

See Figure 5. 180 1200 µs

turn Off

I

L(off2)r

I

L(off2)f

Off state output current
at V

OUT

= 4V

Off state output current
at V

OUT

= 2V

=0V; V

V

IN

rising from 0V to 4V

V

OUT

=0V; V

V

IN

falling from VCC to 2V

V

OUT

=0V

SENSE

SENSE=VSENSEH

-120 0 µA

;

-50 90 µA

Delay response from

= 4 V; VIN= 0V

V

OUT

V

SENSE

= 90% of V

SENSEH

20 µs

td_vol

output rising edge to

SENSE

rising edge in

V
open load

12/37