Double-channel high-side driver with analog current sense
for automotive applications
Max transient supply voltageV
Operating voltage rangeV
Max on-state resistance (per ch.) R
Current limitation (typ)I
Off-state supply currentI
1. Typical value with all loads connected.
■ General
CC
CC
ON
LIMH
S
4.5 to 28 V
25 mΩ
2µA
– Inrush current active management by
power limitation
– Very low standby 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
– Overload and short to ground (power
– Undervoltage shutdown
– Overvoltage clamp
– Load current limitation
– Self limiting of fast thermal transients
– Protection against loss of ground and loss
of V
CC
– Overtemperature shutdown with auto
restart (thermal shutdown)
41 V
60 A
(1)
Powe rSSO- 24
– Reverse battery protected (see Figure 29:
Application schematic
(1)
)
– Electrostatic discharge protection
Applications
■ All types of resistive, inductive and capacitive
loads
■ Suitable as LED driver
Description
The VND5E025MK-E is a double-channel highside drivers manufactured in the ST proprietary
VIPower™ M0-5 technology and housed in the
tiny PowerSSO-24 package.
The VND5E025MK-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, overtemperature shut-off with
auto-restart and overvoltage active clamp.
A dedicated analog current sense pin is
associated with every output channel in order to
provide Enhanced diagnostic functions including
fast detection of overload and short-circuit to
ground through power limitation indication and
overtemperature indication.
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.
Figure 31.Maximum turn-off current versus inductance (for each channel)
Figure 32.PowerSSO-24 PC board
(1)
Figure 33.Rthj-amb vs PCB copper area in open box free air condition (one channel ON) . . . . . . . . 27
Figure 34.PowerSSO-24 thermal impedance junction to ambient single pulse (one channel ON). . . 28
Figure 35.Thermal fitting model of a double-channel HSD in PowerSSO-24
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 3.Absolute maximum ratings
GND
(1)
V
CC
OUTPUT1
CURRENT
SENSE1
OUTPUT2
CURRENT
SENSE2
I
GND
I
OUT1
I
SENSE1
I
OUT2
I
SENSE2
V
SENSE2
V
I
S
OUT2
V
SENSE1
V
Fn
V
OUT1
V
CC
SymbolParameterValueUnit
V
-V
-I
GND
I
OUT
- I
OUT
I
CSD
-I
CSENSE
V
CSENSE
DC supply voltage41
CC
Reverse DC supply voltage0.3
CC
DC reverse ground pin current200mA
DC output currentInternally limited
Reverse DC output current24
DC input current
IN
-1 to 10
DC current sense disable input current
DC reverse CS pin current200
Current sense maximum voltageVCC- 41 to +V
CC
V
A
mAI
V
Maximum switching energy (single pulse)
E
MAX
(L = 0.8 mH; R
= I
I
OUT
limL
(Typ.))
=0Ω; V
L
=13.5V; T
bat
jstart
= 150°C;
140mJ
Doc ID 16471 Rev 17/35
Page 8
Electrical specificationVND5E025MK-E
Table 3.Absolute maximum ratings (continued)
SymbolParameterValueUnit
Electrostatic discharge
(Human Body Model: R = 1.5kΩ; C = 100pF)
4000
2000
4000
5000
5000
V
V
V
V
V
°C
V
V
ESD
ESD
T
T
– INPUT
– CURRENT SENSE
–CS_DIS
–OUTPUT
–V
CC
Charge device model (CDM-AEC-Q100-011)750V
Junction operating temperature- 40 to 150
j
Storage temperature- 55 to 150
stg
2.2 Thermal data
Table 4.Thermal data
SymbolParameterMax. valueUnit
R
thj-case
R
thj-amb
Thermal resistance junction-case (with one channel ON)1.35
°C/W
Thermal resistance junction-ambient See Figure 33
8/35Doc ID 16471 Rev 1
Page 9
VND5E025MK-EElectrical specification
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
SymbolParameterTest conditionsMin. Typ. Max. Unit
V
V
USDhyst
R
V
clamp
I
L(off1)
1. For each channel.
2. PowerMOS leakage included.
Operating supply
CC
voltage
Undervoltage shutdown3.54.5
USD
Undervoltage shutdown
hysteresis
On-state resistance
ON
Clamp voltageIS= 20 mA414652V
I
Supply current
S
Off-state output
(1)
current
Output - VCC diode
V
F
voltage
(1)
I
=3A; Tj= 25°C25
OUT
(1)
=3A; Tj= 150°C50
OUT
=3A; VCC=5V; Tj= 25°C35
I
OUT
Off-state; V
VIN=V
OUT=VSENSE=VCSD
=13V; Tj=25°C;
CC
On-state; VCC=13V; VIN=5V;
I
=0A
OUT
VIN=V
= 25°C
T
j
V
IN=VOUT
=0V; VCC=13V;
OUT
=0V; VCC=13V;
Tj= 125°C
-I
=4 A; Tj=150°C0.7V
OUT
=0V
4.51328
VV
0.5
mΩI
(2)
2
(2)
5
µA
36mA
00.013
µA
05
Table 6.Switching (VCC=13V; Tj= 25°C)
SymbolParameterTest conditions Min.Typ.Max. Unit
t
d(on)
t
d(off)
(dV
/dt)onTurn-on voltage slope
OUT
/dt)
(dV
OUT
W
ON
W
OFF
Turn-on delay time
Turn-off delay time40
Turn-off voltage slope
off
R
=4.3 Ω
L
(see Figure 5)
=4.3 Ω
R
L
Switching energy losses
during t
Switching energy losses
during t
ON
W
RL=4.3 Ω
(see Figure 5)
OFF
W
20
See
Figure 24
See
Figure 25
0.6
0.35
Doc ID 16471 Rev 19/35
µs
V/µs
mJ
Page 10
Electrical specificationVND5E025MK-E
Table 7.Logic inputs
SymbolParameterTest conditionsMin.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
Table 8.Protections and diagnostics
Input low level voltage0.9V
Low level input currentVIN=0.9V1µA
Input high level voltage2.1V
High level input currentVIN=2.1V10µA
Input hysteresis voltage0.25
I
=1mA5.57
Input clamp voltage
IN
I
= -1mA-0.7
IN
CS_DIS low level voltage0.9
Low level CS_DIS currentV
=0.9V1µA
CSD
CS_DIS high level voltage2.1V
High level CS_DIS currentV
=2.1V10µA
CSD
CS_DIS hysteresis voltage0.25
I
=1mA5.57
CS_DIS clamp voltage
CSD
= -1mA-0.7
I
CSD
(1)
SymbolParameterTest conditionsMin.Typ.Max.Unit
V
= 13V4360
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 temperature150175200
Reset temperatureTRS+1 TRS+5
R
Thermal reset of STATUS135
Thermal hysteresis
(T
TSD-TR
)
Turn-Off output voltage
clamp
Output voltage drop
limitation
CC
5V < V
CC
< 28V
VCC= 13V;
TR<Tj<T
I
OUT
TSD
=2A; VIN=0;
L=6 mH
=0.1A;
I
OUT
= -40°C to +150°C
T
j
(see Figure 6)
15
7
-41 VCC-46 VCC-52 V
V
CC
25mV
85
VV
V
A
°C
10/35Doc ID 16471 Rev 1
Page 11
VND5E025MK-EElectrical specification
Table 9.Current sense (8V < VCC< 18V)
SymbolParameterTest conditionsMin. Typ. Max. Unit
I
dK
K
LED
K
K
1/K1
K
= 0.05A; V
I
OUT/ISENSE
0
1
I
OUT/ISENSE
I
OUT/ISENSE
Current sense
(1)
ratio drift
2
I
OUT/ISENSE
OUT
Tj= -40°C to 150°C
I
=0.5A; V
OUT
= -40°C to 150°C
T
j
I
=2 A; V
OUT
=0V;
V
CSD
SENSE
SENSE
Tj= -40°C to 150°C
= 25°C to 150°C
T
j
=2 A; V
I
OUT
V
CSD
= -40°C to 150°C
T
j
I
=3 A; V
OUT
V
CSD
= -40°C to 150°C
T
j
SENSE
=0V;
SENSE
=0V;
Tj= 25°C to150°C
SENSE
=0.5V; V
=0.5V; V
=4 V;
=4 V;
=4V;
CSD
CSD
=0V;
=0V;
1240 3350 4960
1860 3150 4600
2100
3100
4400
2250
3100
3850
-1313%
2200
3000
4100
2450
3000
3550
dK
2/K2
K
dK
3/K3
I
SENSE
I
OL
V
SENSE
V
SENSEH
I
SENSEH
=3 A; V
Current sense
(1)
ratio drift
3
I
OUT/ISENSE
Current sense
(1)
ratio drift
Analog sense
0
leakage current
I
OUT
Tj= -40°C to 150°C
I
=10 A; V
OUT
V
=0V;
CSD
= -40°C to 150°C
T
j
= 25°C to 150°C
T
j
=10 A; V
I
OUT
= -40°C to 150°C
T
j
I
=0A; V
OUT
=5V; VIN=0V; Tj= -40°C to 150°C
V
CSD
V
=0V; VIN=5V; Tj= -40°C to 150°C
CSD
I
=2A; V
OUT
V
=5V; VIN=5V; Tj= -40°C to 150°C
CSD
SENSE
SENSE
SENSE
SENSE
SENSE
=4V; V
=4V;
=4V; V
=0V;
=0V;
CSD
CSD
=0V;
=0V;
-1212%
2550
2850
3280
2650
2850
3180
-6+6%
0
0
0
1
2
1
µA
µA
µA
Open-load on-
= 5V, 8V<VCC<18V
state current
detection
threshold
V
IN
I
SENSE
= 5 µA
530mA
Max analog
sense output
I
OUT
=3 A; V
=0V 5
CSD
voltage
V
Analog sense
output voltage in
fault condition
VCC= 13V; R
(2)
=3.9kΩ8
SENSE
Analog sense
output current in
fault condition
VCC= 13V; V
(2)
=5V9mA
SENSE
Doc ID 16471 Rev 111/35
Page 12
Electrical specificationVND5E025MK-E
Table 9.Current sense (8V < VCC< 18V) (continued)
SymbolParameterTest conditionsMin. Typ. Max. Unit
t
DSENSE1H
t
DSENSE1L
t
DSENSE2H
Delay response
time from falling
edge of CS_DIS
pin
Delay response
time from rising
edge of CS_DIS
pin
Delay response
time from rising
edge of INPUT
pin
V
I
SENSE
SENSE
<4V, 0.5<I
= 90% of I
(see Figure 4)
V
I
SENSE
SENSE
<4V, 0.5<I
= 10% of I
(see Figure 4)
V
I
SENSE
SENSE
<4V, 0.5<I
= 90% of I
(see Figure 4)
OUT
SENSEMAX
OUT
SENSEMAX
OUT
SENSEMAX
Delay response
SENSE
= 90% of I
<4V,
= 90% of I
OUTMAX
SENSEMAX,
, I
Δt
DSENSE2H
time between
rising edge of
output current
and rising edge
V
I
SENSE
I
OUT
(see Figure 7)
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 and overtemperature.
V
I
SENSE
SENSE
<4V, 0.5<I
= 10% of I
(see Figure 4)
OUT
SENSEMAX
<10A
<10A
<10A
OUTMAX
<10A
=3A
30100
520
80300
µs
110
70250
12/35Doc ID 16471 Rev 1
Page 13
VND5E025MK-EElectrical specification
Figure 4.Current sense delay characteristics
INPUT
CS_DIS
LOAD CURRENT
SENSE CURRENT
t
DSENSE2H
t
DSENSE1L
Figure 5.Switching characteristics
/dt
(on)
t
d(on)
t
Won
80%
t
r
V
OUT
dV
OUT
INPUT
10%
t
d(off)
t
Woff
90%
t
f
t
DSENSE1H
dV
OUT
/dt
(off)
t
DSENSE2L
t
t
Figure 6.Output voltage drop limitation
VCC-V
OUT
Tj=150oC
V
on
V
on/Ron(T)
Doc ID 16471 Rev 113/35
Tj=25oC
T
=-40oC
j
I
OUT
Page 14
Electrical specificationVND5E025MK-E
Figure 7.Delay response time between rising edge of output current and rising
edge of current sense (CS enabled)
V
IN
Δ
t
DSENSE2H
t
I
OUT
90% I
OUTMAX
I
OUTMAX
t
I
SENSE
I
90% I
SENSEMAX
SENSEMAX
t
14/35Doc ID 16471 Rev 1
Page 15
VND5E025MK-EElectrical specification
Figure 8.I
I
/ I
out
sense
4700
4200
3700
3200
2700
2200
1700
1200
2345678910
OUT/ISENSE
max Tj = -40 °C to 150 °C
max Tj = 25 °C to 150 °C
min Tj = 25 °C to 150 °C
min Tj = -40 °C to 150 °C
vs I
OUT
typical value
I
(A)
OUT
Figure 9.Maximum current sense ratio drift vs load current
dk/k(%)
20
15
10
5
0
-5
-10
-15
-20
2345678 910
I
OUT
(A)
Note:Parameter guaranteed by design; it is not tested.
Doc ID 16471 Rev 115/35
Page 16
Electrical specificationVND5E025MK-E
Table 10.Truth table
ConditionsInputOutputSense (V
Normal operation
L
H
L
H
CSD
0
Nominal
=0V)
(1)
Overtemperature
Undervoltage
Overload
Short circuit to GND
(Power limitation)
Negative output voltage
clamp
1. If the V
and external circuit.
is high, the SENSE output is at a high impedance, its potential depends on leakage currents
CAll functions of the device performed as designed after exposure to disturbance.
E
One or more functions of the device did not perform as designed after exposure to
disturbance and cannot be returned to proper operation without replacing the device.
Doc ID 16471 Rev 117/35
Page 18
Electrical specificationVND5E025MK-E
2.4 Waveforms
Figure 10. Normal operation
Normal operation
INPUT
Nominal loadNominal load
I
OUT
V
SENSE
V
CS_DIS
Figure 11. Overload or short to GND
Overload or Short to GND
INPUT
I
OUT
V
SENSE
V
CS_DIS
I
LimH
>
Power Limitation
I
LimL
Thermal cycling
>
18/35Doc ID 16471 Rev 1
Page 19
VND5E025MK-EElectrical specification
Figure 12. Intermittent overload
Intermittent Overload
INPUT
Overload
I
>
LimH
I
>
LimL
I
OUT
V
>
SENSEH
V
SENSE
V
CS_DIS
Figure 13. TJ evolution in overload or short to GND
TJ evolution in
Overload or Short to GND
Nominal load
INPUT
Self-limitation of fast thermal transients
T
J_START
T
J
I
>
LimH
I
OUT
Power Limitation
T
T
TSD
R
< I
T
HYST
LimL
Doc ID 16471 Rev 119/35
Page 20
Electrical specificationVND5E025MK-E
2.5 Electrical characteristics curves
Figure 14. Off-state output currentFigure 15. High level input current
Iloff (nA)
1000
900
800
700
600
500
400
300
200
100
0
-50 -250255075 100 125 150 175
Off State
Vcc=13V
Vin=Vout=0V
Tc (°C)
Iih (µA)
5
4,5
3,5
2,5
1,5
0,5
Vin = 2.1V
CC = 8 V
V
4
3
2
1
0
-50 -250255075 100 125 150 175
Tc (°C)
Figure 16. Input clamp voltageFigure 17. Input high level
Vicl (V)
7
6,8
6,6
6,4
6,2
5,8
5,6
5,4
5,2
lin=1mA
6
5
-50 -250255075 100 125 150 175
Tc (°C)
Vih (V)
4
3,5
3
2,5
2
1,5
1
0,5
0
-50 -250255075 100 125 150 175
Tc (°C)
Figure 18. Input low levelFigure 19. Input hysteresis voltage
Vil (V)
2
1,8
1,6
1,4
1,2
1
0,8
0,6
0,4
0,2
0
-50 -250255075 100 125 150 175
Tc (°C)
20/35Doc ID 16471 Rev 1
Vihyst (V)
1
0,9
0,8
0,7
0,6
0,5
0,4
0,3
0,2
0,1
0
-50 -250255075 100 125 150 175
Tc (°C)
Page 21
VND5E025MK-EElectrical specification
Figure 20. On-state resistance vs T
case
Ron (mOhm)
70
60
50
40
30
20
10
0
Iout= 3A
Vcc=13V
-50 -250255075 100 125 150 175
Figure 21. On-state resistance vs V
Ron (mOhm)
60
50
40
30
20
10
0
0510152025303540
Tc (°C)
Figure 22. Undervoltage shutdownFigure 23. I
Vusd (V)
16
14
12
10
8
6
4
2
0
-50 -250255075 100 125 150 175
Tc (°C)
Ilimh (A)
70
65
60
55
50
45
40
-50 -250255075 100 125 150 175
LIMH
Vcc=13V
vs T
CC
Tc=150°C
Tc=125°C
Tc=25°C
Tc=-40°C
Vcc (V)
case
Tc (°C)
Figure 24. Turn-on voltage slopeFigure 25. Turn-off voltage slope
(dVout/dt )On (V/ms)
700
600
500
400
300
200
100
0
-50 -250255075 100 125 150 175
Vcc=13V
RI=4.3 Ohm
Tc (°C)
Doc ID 16471 Rev 121/35
(dVout/dt )Off (V/ms)
600
500
400
300
200
100
0
-50 -250255075 100 125 150 175
Vcc=13V
RI= 4.3 Ohm
Tc (°C)
Page 22
Electrical specificationVND5E025MK-E
Figure 26. CS_DIS high level voltageFigure 27. CS_DIS low level voltage
Vcsdh (V)
4
3,5
3
2,5
2
1,5
1
0,5
0
-50 -250255075 100 125 150 175
Tc (°C)
Vcsdl (V)
3
2,5
2
1,5
1
0,5
0
-50 -250255075 100 125 150 175
Tc (°C)
Figure 28. CS_DIS clamp voltage
Vcsdcl(V)
10
9
8
7
6
5
4
3
2
1
0
-50 -250255075 100 125 150 175
Icsd = 1 mA
Tc (°C)
22/35Doc ID 16471 Rev 1
Page 23
VND5E025MK-EApplication information
3 Application information
Figure 29. Application schematic
+5V
R
prot
Μ
CU
1. Channel 2 has the same internal circuit as channel 1.
R
prot
R
prot
R
SENSE
C
EXT
(1)
CS_DIS
INPUT
CURRENT SENSE
V
CC
OUTPUT
GND
R
GND
GND
D
GND
V
3.1 GND protection network against reverse battery
D
ld
This section provides two solutions for implementing a ground protection network against
reverse battery.
3.1.1 Solution 1: resistor in the ground line (R
This can be used with any type of load.
The following is an indication on how to dimension the R
1.R
2. R
where -I
maximum rating section of the device datasheet.
Power dissipation in R
P
= (-VCC)2/R
D
This resistor can be shared amongst several different HSDs. Please note that the value of
this resistor should be calculated with formula (1) where I
maximum On-state currents of the different devices.
Please note that if the microprocessor ground is not shared by the device ground then the
R
GND
values. This shift varies depending on how many devices are On in the case of several high
side drivers sharing the same R
≤ 600mV / (I
GND
≥ (−VCC) / (-I
GND
is the DC reverse ground pin current and can be found in the absolute
GND
GND
produces a shift (I
S(on)max
GND
GND
S(on)max
)
)
(when VCC<0: during reverse battery situations) is:
* R
GND
) in the input thresholds and the status output
GND
.
GND
only)
resistor.
GND
S(on)max
becomes the sum of the
Doc ID 16471 Rev 123/35
Page 24
Application informationVND5E025MK-E
If the calculated power dissipation leads to a large resistor or several devices have to share
the same resistor then ST suggests to utilize Solution 2 (see below).
3.1.2 Solution 2: diode (D
A resistor (R
=1kΩ) should be inserted in parallel to D
GND
) in the ground line
GND
inductive load.
This small signal diode can be safely shared amongst several different HSDs. Also in this
case, the presence of the ground network produces a shift (≈600mV) in the input threshold
and in the status output values if the microprocessor ground is not common to the device
ground. This shift not varies if more than one HSD shares the same diode/resistor network.
3.2 Load dump protection
Dld is necessary (Voltage Transient Suppressor) if the load dump peak voltage exceeds the
V
max DC rating. The same applies if the device is subject to transients on the VCC line
CC
that are greater than the ones shown in the ISO 7637-2: 2004(E) table.
3.3 MCU I/Os protection
If a ground protection network is used and negative transient are present on the VCC line,
the control pins is pulled negative. ST suggests to insert a resistor (R
the MCU I/Os pins to latch-up.
The value of these resistors is a compromise between the leakage current of MCU and the
current required by the HSD I/Os (Input levels compatibility) with the latch-up limit of MCU
I/Os:
if the device drives an
GND
) in line to prevent
prot
-V
CCpeak/Ilatchup
≤ R
prot
Calculation example:
For V
5kΩ ≤ R
CCpeak
prot
≤ 180kΩ
= - 100V and I
Recommended values: R
≤ (V
OHμC-VIH-VGND
≥ 20mA; V
latchup
=10kΩ, C
prot
EXT
) / I
IHmax
OHµC
=10nF.
≥ 4.5V
24/35Doc ID 16471 Rev 1
Page 25
VND5E025MK-EApplication information
3.4 Current sense and diagnostic
The current sense pin performs a double function (see Figure 30: Current sense and
diagnostic):
●Current mirror of the load current in normal operation, delivering a current
proportional to the load one according to a know ratio K
The current I
external resistor R
minimum (see parameter V
can be easily converted to a voltage V
SENSE
. Linearity between I
SENSE
SENSE
in Table 9: Current sense (8V < VCC < 18V)). The
OUT
and V
current sense accuracy depends on the output current (refer to current sense electrical
characteristics Table 9: Current sense (8V < VCC < 18V)).
●Diagnostic flag in fault conditions, delivering a fixed voltage V
maximum current I
SENSEH
in case of the following fault conditions (refer to Tr ut h t a bl e):
–Power limitation activation
–Overtemperature
A logic level high on CS_DIS pin sets at the same time all the current sense pins of the
device in a high impedance state, thus disabling the current monitoring and diagnostic
detection. This feature allows multiplexing of the microcontroller analog inputs by sharing of
sense resistance and ADC line among different devices.
.
X
SENSE
by means of an
SENSE
is ensured up to 5V
SENSEH
up to a
Figure 30. Current sense and diagnostic
41V
I
OUT/KX
I
SENSEH
CS_DIS
V
SENSEH
CURRENT
SENSEn
R
PROT
To uC ADC
R
SENSE
V
SENSE
Overtemperature
Pwr_Lim
GND
V
CC
Main MOSn
V
BAT
OUTn
Load
Doc ID 16471 Rev 125/35
Page 26
Application informationVND5E025MK-E
3.5 Maximum demagnetization energy (VCC=13.5V)
Figure 31. Maximum turn-off current versus inductance (for each channel)
100
A
B
C
10
I (A)
1
0,1110100L (mH)
A:
T
= 150°C single pulse
jstart
B: T
C:
= 100°C repetitive pulse
jstart
T
= 125°C repetitive pulse
jstart
(1)
VIN, I
L
DemagnetizationDemagnetizationDemagnetization
1. Values are generated with R
In case of repetitive pulses, T
the temperature specified above for curves A and B.
=0 Ω.
L
(at beginning of each demagnetization) of every pulse must not exceed
jstart
26/35Doc ID 16471 Rev 1
t
Page 27
VND5E025MK-EPackage and thermal data
4 Package and thermal data
4.1 PowerSSO-24 thermal data
Figure 32. PowerSSO-24 PC board
1. Layout condition of R
area = 77mm x 86mm, PCB thickness = 1.6mm, Cu thickness = 70µm (front and back side), Copper areas:
from minimum pad layout to 8cm
Figure 33. R
thj-amb
and Zth measurements (PCB: Double layer, Thermal Vias, FR4
th
2
).
vs PCB copper area in open box free air condition (one channel
(1)
ON)
RTHj_amb(°C/W)
55
50
45
40
35
30
0246810
PCB Cu heatsink area (cm^2)
Doc ID 16471 Rev 127/35
Page 28
Package and thermal dataVND5E025MK-E
Figure 34. PowerSSO-24 thermal impedance junction to ambient single pulse (one
channel ON)
ZTH (°C/W)
1000
100
Footprint
2 cm
8 cm
10
1
0.1
0.00010.0010.010.11101001000
Time (s)
Equation 1: pulse calculation formula
Z
THδ
R
TH
δZ
THtp
1 δ–()+⋅=
where δ = tP/T
Figure 35. Thermal fitting model of a double-channel HSD in PowerSSO-24
2
2
(1)
1. The fitting model is a simplified thermal tool and is valid for transient evolutions where the embedded
protections (power limitation or thermal cycling during thermal shutdown) are not triggered.
28/35Doc ID 16471 Rev 1
Page 29
VND5E025MK-EPackage and thermal data
Table 14.Thermal parameters
Area/Island (cm2)Footprint28
R1 (°C/W)0.28
R2 (°C/W)0.9
R3 (°C/W)6
R4 (°C/W)7.7
R5 (°C/W)998
R6 (°C/W)281710
R7 (°C/W)0.28
R8 (°C/W)0.9
C1 (W.s/°C)0.001
C2 (W.s/°C)0.003
C3 (W.s/°C)0.025
C4 (W.s/°C)0.75
C5 (W.s/°C)149
C6 (W.s/°C)2.2517
C7 (W.s/°C)0.001
C8 (W.s/°C)0.003
Doc ID 16471 Rev 129/35
Page 30
Package and packing informationVND5E025MK-E
5 Package and packing information
5.1 ECOPACK® packages
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK®
®
is an ST trademark.
5.2 Package mechanical data
Figure 36. PowerSSO-24 package dimensions
.
30/35Doc ID 16471 Rev 1
Page 31
VND5E025MK-EPackage and packing information
Table 15.PowerSSO-24 mechanical data
Millimeters
Symbol
Min.Typ.Max.
A2.152.47
A22.152.40
a100.075
b0.330.51
c0.230.32
D10.1010.50
E7.47.6
e0.8
e38.8
G0.1
G10.06
H10.110.5
h0.4
k5°
L0.550.85
N10°
X4.14.7
Y6.57.1
Doc ID 16471 Rev 131/35
Page 32
Package and packing informationVND5E025MK-E
5.3 Packing information
Figure 37. PowerSSO-24 tube shipment (no suffix)
Base Qty49
Bulk Qty1225
C
B
Tube length (±0.5)532
A3.5
B13.8
C (±0.1)0.6
A
All dimensions are in mm.
Figure 38. PowerSSO-24 tape and reel shipment (suffix “TR”)
REEL DIMENSIONS
Base Qty1000
Bulk Qty1000
A (max)330
B (min)1.5
C (±0.2)13
F20.2
G (+2 / -0)24.4
N (min)100
T (max)30.4
TAPE DIMENSIONS
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(EIA) Standard 481 rev. A, Feb. 1986
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