ST VNQ5050AK-E User Manual

Quad channel high side driver with analog current sense

Features

Parameters Symbol Value

Max supply voltage V

Operating voltage range V

Max on-state resistance (per ch.) R

Current limitation (typ) I

Off-state supply current I

1. Typical value with all loads connected.

■ General features:

– Inrush current active management by

power limitation
– Very low standby current
– 3.0V CMOS compatible input
– Optimized electromagnetic emission
– Very low electromagnetic susceptibility
– In compliance with the 2002/95/EC

European directive

■ Diagnostic functions:

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

current range
– Current sense disable
– Thermal shutdown indication
– Very low current sense leakage

■ Protection:

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

Table 1. Device summary

Package

CC

CC

ON

LIMH

S

41 V

4.5 to 36 V

50 mΩ

19 A

(1)

2µA

CC

VNQ5050AK-E

for automotive applications

PowerSSO-24

– Reverse battery protection (see Figure 25)
– Electrostatic discharge protection

Application

■ All types of resistive, inductive and capacitive

loads.

■ Suitable as LED driver.

Description

The VNQ5050AK-E is a monolithic device made
using STMicroelectronics VIPower M0-5
technology. It is intended for driving resistive or
inductive loads with one side connected to
ground. Active V
device against low energy spikes (see ISO7637
transient compatibility table).

This device integrates an analog current sense
which delivers a current proportional to the load
current (according to a known ratio) when
CS_DIS is driven low or left open. When CS_DIS
is driven high, the CURRENT SENSE pin is in a
high impedance condition.

Output current limitation protects the device in
overload condition. In case of long overload
duration, the device limits the dissipated power to
a safe level up to thermal shutdown intervention.
Thermal shutdown with automatic restart allows
the device to recover normal operation as soon as
the fault condition disappears.

Order codes

Tube Tape and Reel

pin voltage clamp protects the

CC

PowerSSO-24 VNQ5050AK-E VNQ5050AKTR-E

May 2009 Doc ID 13329 Rev 9 1/31

www.st.com

1

Contents VNQ5050AK-E

Contents

1 Block diagram and pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

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

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

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

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

2.4 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1 GND protection network against reverse battery . . . . . . . . . . . . . . . . . . . 20

3.1.1 Solution 1: resistor in the ground line (RGND only) . . . . . . . . . . . . . . . . 20

3.1.2 Solution 2: a diode (DGND) in the ground line. . . . . . . . . . . . . . . . . . . . 21

3.2 Load dump protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.3 Microcontroller I/Os protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.4 Maximum demagnetization energy (VCC = 13.5V) . . . . . . . . . . . . . . . . . 23

4 Package and PC board thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.1 PowerSSO-24 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.1 ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.2 PowerSSO-24™ mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.3 Packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2/31 Doc ID 13329 Rev 9

VNQ5050AK-E List of tables

List of tables

Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Table 2. Pin functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Table 3. Suggested connections for unused and not connected pins . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 4. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 5. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 6. Power section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 7. Switching (V
Table 8. Current sense (8V<V

Table 9. Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 10. Logic input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 11. Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 12. Electrical transient requirements (part 1/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 13. Electrical transient requirements (part 2/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 14. Electrical transient requirements (part 3/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 15. Thermal parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Table 16. PowerSSO-24™ mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table 17. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

=13V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

CC

<16V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

CC

Doc ID 13329 Rev 9 3/31

List of figures VNQ5050AK-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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 5. Delay response time between rising edge of output current and rising edge of current sense

(CS enabled). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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

Figure 7. I

OUT/ISENSE

Figure 8. Maximum current sense ratio drift vs load current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 9. Output voltage drop limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 10. Off-state output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 11. High level input current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 12. Input clamp voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 13. Input low level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

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

Figure 15. Input hysteresis voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 16. On-state resistance vs T
Figure 17. On-state resistance vs V

Figure 18. Undervoltage shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 19. Turn-on voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 20. I

LIMH

vs T

Figure 21. Turn-off voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 22. CS_DIS high level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 23. CS_DIS clamp voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 24. CS_DIS low level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 25. Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 26. Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 27. Maximum turn-off current versus inductance (for each channel) . . . . . . . . . . . . . . . . . . . . 23

Figure 28. PowerSSO-24 PC board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 29. Rthj-amb vs PCB copper area in open box free air condition (one channel on). . . . . . . . . 24

Figure 30. PowerSSO-24 thermal impedance junction ambient single pulse (one channel on) . . . . . 25

Figure 31. Thermal fitting model of a double channel HSD in PowerSSO-24 . . . . . . . . . . . . . . . . . . . 25

Figure 32. PowerSSO-24™ package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 33. PowerSSO-24 tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 34. PowerSSO-24 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

vs I

case

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

OUT

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

case

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

CC

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4/31 Doc ID 13329 Rev 9

VNQ5050AK-E Block diagram and pin configuration

1 Block diagram and pin configuration

Figure 1. Block diagram

V

CC

V

CC

CLAMP

GND

INPUT1

LOGIC

INPUT2

INPUT3

INPUT4

Pwr

CS_DIS

Table 2. Pin functions

Name Function

V

CC

OUTPUT

GND

INPUT

n

n

Battery connection

Power output

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

UNDERVOLTAGE

DRIVER 1

I

OUT1

1

LIM

PwCLAMP 1

I

LIM

V

DSLIM

OVERTEMP. 1

K 1

OUTPUT1

CURRENT
SENSE1

V

1

1

INPUT2

CURRENT

SENSE2

INPUT3

CURRENT

SENSE3

INPUT4

CURRENT

SENSE4

Control & Protection
Equivalent to
channel1

Control & Protection
Equivalent to
channel1

Control & Protection
Equivalent to
channel1

CC

V

CC

V

CC

OUTPUT2

CURRENT
SENSE2

OUTPUT3

CURRENT
SENSE3

OUTPUT4

CURRENT
SENSE4

CURRENT SENSE

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

n

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

Doc ID 13329 Rev 9 5/31

Block diagram and pin configuration VNQ5050AK-E

Figure 2. Configuration diagram (top view)

V

CC

GND

INPUT1

CURRENT SENSE1

INPUT2

CURRENT SENSE2

INPUT3

CURRENT SENSE3

INPUT4

CURRENT SENSE4

CS_DIS.

V

CC

OUTPUT1

OUTPUT1

OUTPUT1

OUTPUT2

OUTPUT2

OUTPUT2

OUTPUT3

OUTPUT3

OUTPUT3

OUTPUT4

OUTPUT4

OUTPUT4

TA B = V

Table 3. Suggested connections for unused and not connected pins

CC

Connection/pin Current sense N.C. Output Input CS_DIS

Floating N.R.

To ground

1. Not recommended.

(1)

Through 1 kΩ

resistor

XX X X

XN.R.

Through 10 kΩ

resistor

Through 10 kΩ

resistor

6/31 Doc ID 13329 Rev 9

VNQ5050AK-E Electrical specifications

2 Electrical specifications

Figure 3. Current and voltage conventions

I

S

V

CC

I

CSD

V

CSD

I

INn

V

INn

CS_DIS

INPUTn

GND

OUTPUTn

CURRENT
S

ENSEn

I

GND

I

SENSEn

V

SENSEn

V

Fn

I

OUTn

V

OUTn

V

CC

Note: V

Fn

= V

- VCC during reverse battery condition.

OUTn

2.1 Absolute maximum ratings

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 4. Absolute maximum ratings

Symbol Parameter Value Unit

- I

- I

V

-V

I

OUT

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

Reverse DC output current 20 A

OUT

DC input current -1 to 10 mA

I

IN

I

CSD

-I

CSENSE

V

CSENSE

E

DC current sense disable input current -1 to 10 mA

DC reverse CS pin current 200 mA

Current sense maximum voltage

Maximum switching energy (single pulse)

MAX

(L=3 mH; R

=0 Ω; V

L

=13.5 V; T

bat

jstart

=150 ºC; I

OUT

= I

limL

(Typ.))

V

-41

CC

+V

CC

104 mJ

V
V

Doc ID 13329 Rev 9 7/31

Electrical specifications VNQ5050AK-E

Table 4. 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

– Input
– Current sense
–CS_DIS
– Output
–V

CC

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

Junction operating temperature -40 to 150 °C

T

j

Storage temperature -55 to 150 °C

stg

2.2 Thermal data

Table 5. Thermal data

Symbol Parameter Max value Unit

R

thj-case

R

thj-amb

Thermal resistance junction-case (With one channel ON) 2.8 °C/W

Thermal resistance junction-ambient See Figure 29 °C/W

8/31 Doc ID 13329 Rev 9

VNQ5050AK-E Electrical specifications

2.3 Electrical characteristics

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

Table 6. Power section

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

V

V

USDhyst

R

V

clamp

I

L(off)

1. PowerMOS leakage included.

2. For each channel.

Operating supply voltage 4.5 13 36 V

CC

Undervoltage shutdown - 3.5 4.5 V

USD

Undervoltage shutdown
hysteresis

On-state resistance

ON

Clamp voltage IS=20 mA 41 46 52 V

I

Supply current

S

Off-state output current

Output - VCC diode

V

F

voltage

(2)

I

=2 A; Tj=25 °C

OUT

=2 A; Tj=150 °C

I

OUT

I

=2 A; VCC=5 V; Tj=25 °C

OUT

Off-State; VCC=13 V; Tj=25 °C;
VIN=V

OUT=VSENSE=VCSD

On-State; V
I

OUT

VIN=V
Tj=25 °C

(2)

V

=0 A

OUT

IN=VOUT

=13 V; VIN=5 V;

CC

=0 V; VCC=13 V;

=0 V; VCC=13 V;

Tj=125 °C

-I

=2 A; Tj=150 °C - - 0.7 V

OUT

=0 V

-0.5 - V

mΩ

--50100

(1)

2

5

­8

000.01 3

mΩ

65

mΩ

(1)

14µAmA

µA

5

Table 7. Switching (VCC=13V)

Symbol Parameter Test conditions Min. Typ. Max. Unit

t

d(on)

t

d(off)

(dV

OUT

(dV

OUT

W

ON

W

OFF

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

Turn-off delay time RL= 6.5 Ω (see Figure 6)- 45 - µs

/dt)onTurn-on voltage slope RL= 6.5 Ω -

/dt)

Turn-off voltage slope RL= 6.5 Ω -

off

Switching energy
losses during t

won

Switching energy
losses during

t

woff

RL= 6.5 Ω (see Figure 6) - 0.15 - mJ

RL= 6.5 Ω (see Figure 6)- 0.3 - mJ

See

Figure 19

See

Figure 21

-V/µs

-V/µs

Doc ID 13329 Rev 9 9/31

Electrical specifications VNQ5050AK-E

Table 8. Current sense (8V<VCC<16V)

Symbol Parameter Test conditions Min. Typ. Max. Unit

I

= 0.05 A;

OUT

dK

dK

K

K

1/K1

K

2/K2

I

0

1

2

OUT/ISENSE

I

OUT/ISENSE

(1)

Current sense ratio drift

I

OUT/ISENSE

(1)

Current sense ratio drift

V
T

I
V
T

= 0.5 V; V

SENSE

= -40°C...150°C

j

= 1 A;

OUT

= 0.5 V; V

SENSE

= -40°C...150°C

j

CSD

CSD

Tj= 25 °C...150 °C

I

= 1 A; V

OUT

V

= 0 V;

CSD

= -40 °C to 150 °C

T

J

I

= 2 A;

OUT

V
T
T

I
V

= 4 V; V

SENSE

= -40°C...150°C

j

= 25 °C...150 °C

j

= 2 A; V

OUT

= 0 V;

CSD

SENSE

CSD

SENSE

= 0.5 V;

= 4 V;

TJ= -40 °C to 150 °C

=0 V;

=0 V;

= 0 V;

1340 2420 3460

1370

1860

2510

1510

1860

2210

-10 - 10 %

1590

1760

2140

1600

1760

1930

-8 - 8 %

I

= 4 A;

OUT

dK

K

3

3/K3

I

OUT/ISENSE

(1)

Current sense ratio drift

V
T
T

I
V

= 4 V; V

SENSE

= -40°C...150°C

j

= 25 °C...150 °C

j

= 4 A; V

OUT

CSD

SENSE

= 0 V;

CSD

= 0 V;

= 4 V;

1650

1740

1950

1650

1740

1830

-5 - 5 %

-

TJ= -40 °C to 150 °C

I

I

SENSE0

Analog sense leakage
current

= 0 A; V

OUT

V

= 5 V; VIN= 0 V;

CSD

= -40°C...150°C

T

j

= 0 V; VIN= 5 V;

V

CSD

= -40°C...150°C

T

j

= 2 A; V

I

OUT

= 5 V; VIN= 5 V;

V

CSD

= -40°C...150°C

T

j

SENSE

SENSE

= 0 V;

= 0 V;

0

-

1

µA

0

-

2

µA

0

-

1

µA

Openload ON state

I

OL

current detection

VIN = 5 V, I

= 5 µA 4 - 20 mA

SENSE

threshold

V

SENSE

Max analog sense
output voltage

I

OUT

= 4 A; V

= 0 V 5 - - V

CSD

Analog sense output

V

SENSEH

voltage in over

V

CC

= 13 V; R

= 10 KΩ -9-V

SENSE

temperature condition

10/31 Doc ID 13329 Rev 9