ST VND5012AK-E User Manual

Features

VND5012AK-E

Double channel high side driver with analog current sense

for automotive applications

Max supply voltage V

Operating voltage range V

Max on-state resistance (per ch.)

Current limitation (typ) I

Off-state supply current (typ.) I

1. Typical value with all loads connected.

■ General features

– Inrush current active management by

power limitation
– Very low standby current
– 3.0 V 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 range

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

■ Protections

– Undervoltage shutdown
– Overvoltage clamp
– Output stuck to Vcc detection
– Load current limitation
– Self limiting of fast thermal transients
– Protection against loss of ground and loss

of V

CC

– Thermal shutdown

Table 1. Device summary

Package

PowerSSO-24 VND5012AK-E VND5012AKTR-E

CC

CC

R

ON

LIMH

S

41 V

4.5 to 36 V

12 mΩ

60 A

(1)

2µA

PowerSSO-24

– Reverse battery protection (see Application

schematic)

– Electrostatic discharge protection

Application

■ All types of resistive, inductive and capacitive

loads

Description

The VND5012AK-E 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 safe level up to thermal
shutdown intervention. Thermal shutdown with
automatic restart allows the device to recover
normal operation as soon as fault condition
disappears.

Order codes

Tub e Tap e a nd reel

pin voltage clamp protects the

CC

December 2009 Doc ID 12285 Rev 7 1/31

www.st.com

1

Contents VND5012AK-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 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.1 GND Protection network against reverse battery . . . . . . . . . . . . . . . . . . . 21

3.1.1 Solution 1: resistor in the ground line (RGND only) . . . . . . . . . . . . . . . . 21

3.1.2 Solution 2: diode (DGND) in the ground line . . . . . . . . . . . . . . . . . . . . . 22

3.2 Load dump protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.3 MCU I/Os protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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

4 Package and PCB 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 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.3 PowerSSO-24 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

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

2/31 Doc ID 12285 Rev 7

VND5012AK-E List of tables

List of tables

Table 2. Pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 (VCC=13V; Tj=25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 8. Logic inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 9. Protections and diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 10. Current sense (8V<V

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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 15. Thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

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

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

<16V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

CC

Doc ID 12285 Rev 7 3/31

List of figures VND5012AK-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. I

OUT/ISENSE

Figure 7. Maximum current sense ratio drift vs load current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 8. Switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 9. Output voltage drop limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 10. Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 11. Off-state output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 12. High level input current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 13. Input clamp voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 14. Input high level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 15. Input low level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 16. Input hysteresis voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 17. On-state resistance vs T
Figure 18. On-state resistance vs V

Figure 19. Undervoltage shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 20. I

LIMH

vs T

Figure 21. Turn-on voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 22. Turn-off voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 23. CS_DIS high level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 24. CS_DIS clamp voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 25. CS_DIS low level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 26. Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

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 single channel HSD in PowerSSO-24 . . . . . . . . . . . . . . . . . . . . 25

Figure 32. PowerSSO-24 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 33. PowerSSO-24 tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

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

vs I

case

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

OUT

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

case

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

CC

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4/31 Doc ID 12285 Rev 7

VND5012AK-E Block diagram and pin description

1 Block diagram and pin description

Figure 1. Block diagram

V

CC

Pwr

LIM

UNDERVOLTAGE

DRIVER 1

Pwr

1

LIM

OVERTEMP. 1

I

OUT1

2

PwCLAMP 1

K 1

I

V

DSLIM

LIM

1

1

DRIVER 2

I

OUT2

PwCLAMP 2

OVERTEMP. 2

K 2

V

CC

CLAMP

GND

INPUT1

INPUT2

CS_DIS

Table 2. Pin function

LOGIC

Name Function

V

CC

OUTPUT

GND

INPUT

CURRENT

SENSE

Battery connection.

Power output.

1,2

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

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

1,2

switch state.

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

1,2

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

V

I

LIM

DSLIM

OUTPUT1

CURRENT
SENSE1

OUTPUT2

2

2

CURRENT
SENSE2

Doc ID 12285 Rev 7 5/31

Block diagram and pin description VND5012AK-E

Figure 2. Configuration diagram (top view)

V

CC

GND

N.C.

INPUT2

N.C.

INPUT1

N.C.

CURRENT SENSE1

N.C.

CURRENT SENSE2

CS_DIS

V

CC

1
2
3
4
5
6
7
8
9
10
11
12

24
23
22
21
20
19
18
17
16
15
14
13

OUTPUT2
OUTPUT2
OUTPUT2
OUTPUT2
OUTPUT2
OUTPUT2
OUTPUT1
OUTPUT1
OUTPUT1
OUTPUT1
OUTPUT1
OUTPUT1

TAB = V

Table 3. Suggested connections for unused and not connected pins

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

Floating Not allowed X X X X

To ground

Through 1 KΩ

resistor

X Not allowed

Through 10 KΩ

CC

resistor

Through 10 KΩ

resistor

6/31 Doc ID 12285 Rev 7

VND5012AK-E Electrical specifications

2 Electrical specifications

Figure 3. Current and voltage conventions

I

S

V

CC

I

I

CSD

V

CSD

I

IN1

V

IN1

I

IN2

V

IN2

CS_DIS

INPUT1

INPUT2

GND

OUTPUT1

CURRENT
SENSE1

OUTPUT2

CURRENT
SENSE2

I

GND

OUT1

I

SENSE1

I

OUT2

I

SENSE2

V

SENSE2

V

OUT2

V

SENSE1

VF (*)

V

OUT1

V

CC

Note: V

Fn

= V

- VCC during reverse battery condition.

OUTn

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 the conditions in table below for extended
periods may affect device reliability. Refer also to the STMicroelectronics SURE Program
and other relevant quality document.

Table 4. Absolute maximum ratings

Symbol Parameter Value Unit

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 -30 A

OUT

DC Input current -1 to 10 mA

I

IN

-V

-I

I

-I

V

OUT

I

CSD

-I

CSENSE

V

CSENSE

DC current sense disable input current -1 to 10 mA

DC reverse CS pin current 200 mA

V

Current sense maximum voltage

CC

+V

-41

CC

V
V

Doc ID 12285 Rev 7 7/31

Electrical specifications VND5012AK-E

Table 4. Absolute maximum ratings (continued)

Symbol Parameter Value Unit

Maximum switching energy

E

V

V

MAX

(L=1.25 mH; R

= I

I

OUT

limL

(Typ.))

=0 Ω; V

L

=13.5 V; T

bat

jstart

=150 °C;

Electrostatic discharge
(Human body model: R= 1.5 KΩ; C= 100 pF)
– INPUT
– CURRENT SENSE

ESD

–CS_DIS
–OUTPUT
–V

CC

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

ESD

Junction operating temperature -40 to 150 °C

T

j

508 mJ

4000
2000
4000
5000
5000

V
V
V
V
V

T

stg

2.2 Thermal data

Table 5. Thermal data

Symbol Parameter Max value Unit

R

thj-case

R

thj-amb

Storage temperature -55 to 150 °C

Thermal resistance junction-case (max) (With one
channel on)

0.4 °C/W

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

8/31 Doc ID 12285 Rev 7

VND5012AK-E Electrical specifications

2.3 Electrical characteristics

8V<VCC<36V; -40°C<Tj<150°C, unless otherwise specified.

Table 6. Power section

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

V

USD

V

USDhyst

R

V

clamp

I

L(off)

V

Operating supply voltage 4.5 13 36 V

CC

Undervoltage shutdown 3.5 4.5 V

Undervoltage shutdown
hysteresis

On-state resistance

ON

Clamp voltage IS=20mA 41 46 52 V

I

Supply current

S

Off-state output

(2)

current

Output VCC diode
voltage

(2)

F

1. PowerMOS leakage included.

2. For each channel.

I

=5A; Tj=25°C

OUT

(2)

=5A; Tj=150°C

I

OUT

I

=5A; VCC=5V; Tj=25°C

OUT

Off-state; V
V

IN=VOUT=VSENSE=VCSD

CC

On-state; VCC=13V; VIN=5V;

=0A

I

OUT

VIN=V
V

IN=VOUT

=0V; VCC=13V; Tj=25°C

OUT

=0V; VCC=13V;

Tj=125°C

-I

= 8A; Tj=150°C 0.7 V

OUT

=13V; Tj=25°C;

=0V

0.5 V

(1)

2

5

3

000.01 3

12

mΩ

24

mΩ

16

mΩ

(1)

6µAmA

5µA

Table 7. Switching (VCC=13V; Tj=25°C)

Symbol Parameter Test conditions Min. Typ. Max. Unit

t

d(on)

t

d(off)

dV

OUT

dV

OUT

W

W

OFF

Turn-on delay time RL= 2.6 Ω (see Figure 8)20µs

Turn-off delay time RL= 2.6 Ω (see Figure 8)35µs

/dt

Turn-on voltage slope RL= 2.6 Ω See Figure 21 V/µs

(on)

/dt

Turn-off voltage slope RL= 2.6 Ω See Figure 22 V/µs

(off)

Switching energy losses

ON

during t

won

Switching energy losses
during t

woff

RL= 2.6 Ω (see Figure 8)1.1mJ

RL= 2.6 Ω (see Figure 8)0.7mJ

Doc ID 12285 Rev 7 9/31

Electrical specifications VND5012AK-E

Table 8. Logic inputs

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

I

V

I

V

I(hyst)

V

V

CSDL

I

CSDL

V

CSDH

I

CSDH

V

CSD(hyst)

V

CSCL

Table 9. Protections and diagnostics

Input low level voltage 0.9 V

IL

Low level input current VIN=0.9 V 1 µA

IL

Input high level voltage 2.1 V

IH

High level input current VIN=2.1 V 10 µA

IH

Input hysteresis voltage 0.25 V

Input clamp voltage

ICL

I

=1 mA

IN

=-1 mA

I

IN

5.5

-0.7

CS_DIS low level voltage 0.9 V

Low level CS_DIS current V

=0.9 V 1 µA

CSD

CS_DIS high level voltage 2.1 V

High level CS_DIS current V

CS_DIS hysteresis
voltage

CS_DIS clamp voltage

=2.1 V 10 µA

CSD

0.25 V

I

CSD

I

CSD

=1 mA
=-1 mA

(1)

5.5

-0.7

7V

7V

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

V

V

=13 V

I

limH

I

limL

T

TSD

T

T

RS

T

HYST

V

DEMAG

V

ON

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 is subjected to
abnormal conditions, this software must limit the duration and number of activation cycles.

DC short circuit current

Short circuit current
during thermal cycling

Shutdown temperature 150 175 200 °C

Reset temperature

R

Thermal reset of
STATUS

Thermal hysteresis

TSD -TR

)

(T

Turn-off output voltage
clamp

Output voltage drop
limitation

CC

5V<V

V

CC

I

OUT

<36 V

CC

=13 V TR<Tj<T

=2 A; VIN=0;

L=6 mH

I

= 0.4 A;

OUT

= -40 °C...+150 °C

T

j

(see Figure 26)

TSD

42 60 84

84

24 A

TRS + 1 TRS + 5

135 °C

7°C

VCC-41 VCC-46 VCC-52

25 mV

A
A

°C

V

10/31 Doc ID 12285 Rev 7