ST VND5025LAK-E User Manual
Features
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
■ Features
– In-rush 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
– Package: ECOPACK
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
– Load current limitation
– Self-limiting of fast thermal transients
– Protection against loss of ground and loss
of V
– Thermal shutdown
Table 1. Device summary
CC
Package
VND5025LAK-E
Double channel high side driver with analog
current sense for automotive applications
S
41 V
4.5 to 36V
25mΩ
60A
(1)
2µA
PowerSSO-24™
– Reverse battery protection (see Application
schematic
(1)
on page 21)
– Electrostatic discharge protection
Description
The VND5025LAK-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, and suitable for driving LEDs.
Active V
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.
Tube Tape and reel
pin voltage clamp protects the device
CC
Order codes
CC
CC
ON
LIMH
®
PowerSSO-24™ VND5025LAK-E VND5025LAKTR-E
July 2009 Doc ID 12794 Rev 5 1/31
www.st.com
1
Contents VND5025LAK-E
Contents
1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
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 Microcontroller I/Os protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.4 Maximum demagnetization energy (VCC = 13.5V) . . . . . . . . . . . . . . . . . 23
4 Package and 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 Package mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.4 Packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2/31 Doc ID 12794 Rev 5
VND5025LAK-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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 7. Switching (VCC = 13V; Tj = 25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 8. Logic input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 9. Protections and diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 10. Current sense (8V < VCC < 16V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 11. Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 17. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Doc ID 12794 Rev 5 3/31
List of figures VND5025LAK-E
List of figures
Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Configuration diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
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). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 6. IOUT/ISENSE vs IOUT
Figure 7. Maximum current sense ratio drift vs load current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 8. Switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 9. Output voltage drop limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
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 Tcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 18. On-state resistance vs VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 19. Undervoltage shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 20. ILIMH vs Tcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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 low level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 25. CS_DIS clamp voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 26. Application schematic
Figure 27. Maximum turn-off current versus inductance
Figure 28. PowerSSO-24™ PC board
Figure 29. Rthj-amb vs PCB copper area in open box free air condition (with one channel ON) . . . . 24
Figure 30. PowerSSO-24™ thermal impedance junction to ambient single pulse (with one channel ON)
25
Figure 31. Thermal fitting model of a double channel HSD in PowerSSO-24™(1) . . . . . . . . . . . . . . . 26
Figure 32. PowerSSO-24™ package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 33. PowerSSO-24™ tube shipment (no suffix). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 34. PowerSSO-24™ tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4/31 Doc ID 12794 Rev 5
VND5025LAK-E Block diagram and pin description
1 Block diagram and pin description
Figure 1. Block diagram
V
CC
CLAMP
GND
INPUT1
INPUT2
CS_DIS
Table 2. Pin functions
LOGIC
Name Function
V
CC
OUTPUT
1,2
GND
INPUT
1,2
CURRENT SENSE
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
Analog current sense pin; delivers a current proportional to the load
1,2
current
CS_DIS Active high CMOS compatible pin to disable the current sense pin
DRIVER 1
Pwr
LIM
Pwr
I
OUT1
UNDERVOLTAGE
PwCLAMP 1
I
V
DSLIM
1
LIM
OVERTEMP. 1
K 1
2
LIM
OUTPUT1
CURRENT
1
1
DRIVER 2
I
OUT2
PwCLAMP 2
I
LIM
V
DSLIM
OVERTEMP. 2
K 2
2
2
SENSE1
OUTPUT2
CURRENT
SENSE2
Figure 2. Configuration diagram (top view)
V
CC
1
CC
2
3
4
5
6
7
8
9
10
11
12
GND
N.C.
INPUT2
N.C.
INPUT1
N.C.
CURRENT SENSE1
N.C.
CURRENT SENSE2
CS_DIS.
V
Doc ID 12794 Rev 5 5/31
24
23
22
21
20
19
18
17
16
15
14
13
OUTPUT2
OUTPUT2
OUTPUT2
OUTPUT2
OUTPUT2
OUTPUT2
OUTPUT1
OUTPUT1
OUTPUT1
OUTPUT1
OUTPUT1
OUTPUT1
Block diagram and pin description VND5025LAK-E
Table 3. Suggested connections for unused and not connected pins
Connection / Pin Current Sense N.C. Output Input CS_DIS
Floating N.R.
To ground
1. Not recommended
Through 1kΩ
(1)
resistor
XX X X
XN.R.
Through 10kΩ
resistor
Through 10kΩ
resistor
6/31 Doc ID 12794 Rev 5
VND5025LAK-E Electrical characteristics
2 Electrical characteristics
Figure 3. Current and voltage conventions
I
S
V
CC
I
I
CSD
V
CSD
V
IN1
V
IN2
I
IN1
I
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
Table 4. Absolute maximum ratings
Symbol Parameter Value Unit
V
-V
-I
GND
I
OUT
- I
OUT
I
CSD
-I
CSENSE
V
CSENSE
E
MAX
V
ESD
DC supply voltage 41
CC
Reverse DC supply voltage 0.3
CC
DC reverse ground pin current 200 mA
DC output current Internally limited
Reverse DC output current 24
DC input current
IN
DC current sense disable input current
DC reverse CS pin current 200
Current sense maximum voltage VCC- 41 to +V
Maximum switching energy (single pulse)
(1)
(L = 0.3mH; R
I
OUT
= I
limL
L
(Typ.))
=0Ω; V
Electrostatic Discharge
(Human Body Model: R = 1.5kΩ; C = 100pF)
- Input
- Current sense
- CS_DIS
- Output
- V
CC
= 13.5V; T
bat
jstart
= 150°C;
-1 to 10
CC
109 mJ
4000
2000
4000
5000
5000
V
A
mAI
V
V
V
V
V
V
Doc ID 12794 Rev 5 7/31
Electrical characteristics VND5025LAK-E
Table 4. Absolute maximum ratings (continued)
Symbol Parameter Value Unit
V
ESD
T
T
Charge device model (CDM-AEC-Q100-011) 750 V
Junction operating temperature -40 to 150
j
Storage temperature -55 to 150
stg
1. See Section 3.4 for details.
2.2 Thermal data
Table 5. Thermal data
Symbol Parameter Max Value Unit
R
R
thj-case
thj-amb
Thermal resistance junction-case (MAX) (with one channel ON) 1.35
Thermal resistance junction-ambient (MAX) See Figure 29
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
°C
°C/W
V
V
USDhyst
R
V
clamp
I
L(off)
Operating supply
CC
voltage
Undervoltage shutdown 3.5 4.5
USD
Undervoltage shutdown
hysteresis
I
=3A; Tj= 25°C 25
OUT
On-state resistance
ON
(1)
=3A; Tj= 150°C 50
OUT
=3A; VCC=5V; Tj=25°C 35
I
OUT
Clamp voltage IS= 20 mA 41 46 52 V
I
Supply current
S
Off-state output
current
Output - VCC diode
V
F
voltage
(1)
(1)
Off-state; V
V
IN=VOUT=VSENSE=VCSD
On-state; VCC= 13V; VIN=5V;
I
=0A
OUT
VIN=V
V
IN=VOUT
-I
=3A; Tj= 150°C 0.7 V
OUT
= 13V; Tj=25°C;
CC
=0V
=0V; VCC= 13V; Tj= 25°C 0 0.01 3
OUT
=0V; VCC=13V; Tj= 125°C 0 5
4.5 13 36
0.5
(2)
5
2
36mA
(2)
VV
mΩI
µA
µA
1. For each channel
2. PowerMOS leakage included
8/31 Doc ID 12794 Rev 5
VND5025LAK-E Electrical characteristics
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
ON
W
OFF
Table 8. Logic input
Turn-on delay time
Turn-off delay time - 50 -
R
=4.3Ω
L
(seeFigure 8)
/dt)onTurn-on voltage slope
=4.3Ω
R
/dt)
Turn-off voltage slope - (see Figure 10)-
off
L
Switching energy losses
during tW
Switching energy losses
during tW
ON
OFF
RL=4.3Ω
(see Figure 8)
-35-
-(see Figure 21)-
-0.45-
-0.35-
Symbol Parameter Test conditions Min Typ Max Unit
V
IL
I
IL
V
IH
I
IH
V
I(hyst)
ICL
V
CSDL
I
CSDL
V
CSDH
I
CSDH
V
CSD(hyst)
V
CSCL
Input low level voltage 0.9 V
Low level input current VIN=0.9V 1 µA
Input high level voltage 2.1 V
High level input current VIN=2.1V 10 µA
Input hysteresis voltage 0.25
I
=1mA 5.5 7
Input clamp voltage
IN
= -1mA -0.7
I
IN
CS_DIS low level voltage 0.9
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
I
=1mA 5.5 7
CS_DIS clamp voltage
CSD
I
= -1mA -0.7
CSD
µs
V/µs
mJ
VV
V
Table 9. Protections and diagnostics
(1)
Symbol Parameter Test conditions Min Typ Max Unit
VCC= 13V
I
LIMH
I
LIML
DC short circuit current
Short circuit current
during thermal cycling
CC
< 36V
5V < V
VCC= 13V;
T
R<Tj<TTSD
A
Doc ID 12794 Rev 5 9/31
Electrical characteristics VND5025LAK-E
Table 9. Protections and diagnostics
(1)
(continued)
Symbol Parameter Test conditions Min Typ Max Unit
T
TSD
T
R
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.
Table 10. Current sense (8V < VCC<16V)
Shutdown temperature 150 175 200
Reset temperature TRS+1 TRS+5
Thermal reset of STATUS 135
Thermal hysteresis
TSD-TR
)
(T
Turn-off output voltage
clamp
Output voltage drop
limitation
=2A;
I
OUT
VIN=0;
L=6mH
=0.2A;
I
OUT
Tj= -40°C to 150°C
(see Figure 9)
VCC-41 VCC-46 VCC-52 V
7
°C
mV
Symbol Parameter Test conditions Min Typ Max Unit
I
= 0.05A; V
K
LED
K
K
dK
1/K1
K
dK
2/K2
K
dK
3/K3
0
1
(1)
2
(1)
3
(1)
I
OUT/ISENSE
I
OUT/ISENSE
I
OUT/ISENSE
Current sense
ratio drift
I
OUT/ISENSE
Current sense
ratio drift
I
OUT/ISENSE
Current sense
ratio drift
OUT
Tj= -40°C to 150°C
I
=0.5A; V
OUT
= -40°C to 150°C
T
j
I
=2A; V
OUT
=0V;
V
CSD
SENSE
SENSE
Tj=-40°C
= 25°C to 150°C
T
j
=2A; V
I
OUT
= -40°C to 150°C
T
j
I
OUT
V
CSD
=-40°C
T
j
T
= 25°C to150°C
j
I
OUT
= -40°C to 150°C
T
j
I
OUT
V
CSD
=3A; V
=0V;
=3A; V
= 10A; V
=0V;
SENSE
SENSE
SENSE
SENSE
Tj=-40°C
= 25°C to 150°C
T
j
= 10A; V
I
OUT
= -40°C to 150°C
T
j
SENSE
SENSE
=4V;
=4V; V
=4V;
=4V; V
=0.5V; V
=0.5V; V
CSD
CSD
=4V;
=4V; V
CSD
CSD
CSD
=0V;
=0V;
=0V;
=0V;
=0V;
1450 3300 5180
3020 4360
1940
2810
3740
2230
2810
3390
-10 +10 %
2250
2790
3450
2400
2790
3180
-7 +7 %
2610
2760
2970
2650
2760
2870
-3 +3 %
10/31 Doc ID 12794 Rev 5
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