LDP01-xxAY
Automotive TVS for load dump protection
Datasheet
-
production data
Description
The LDP01-xxAY Transil™ series have been
designed to protect automotive sensitive circuits
against surges defined in ISO 7637-2 and
ISO 16750 tests A and B also called load-dump.
The planar technology makes it compatible with
high-end circuits where low leakage current and
high junction temperature are required to provide
reliability and stability over time.
LDP01-xxAY is packaged in D²PAK.
Features
•
Stand-off voltage range: from 22 to 70 V
•
Low leakage current: 1
μA
at 25 °C
•
Operating T
j
max: 175 °C
•
High power capability at T
j
max
•
JEDEC registered package outline
•
ROHS and Halogen free
•
Resin meets UL 94, V0
•
AEC-Q101 compliant
Table 1. Device summary
Breakdown voltage
(V
BR
at I
R
= 1 mA)
Part number
min.
typ.
V
LDP01-26AY
LDP01-28AY
LDP01-30AY
LDP01-33AY
LDP01-35AY
LDP01-39AY
LDP01-42AY
LDP01-47AY
LDP01-50AY
LDP01-56AY
LDP01-68AY
LDP01-82AY
24.4
26.7
28.9
31.1
33.3
36.7
40
44.4
47.8
53.3
64.4
77.8
26
28
30
33
35
39
42
47
50
56
68
82
27.0
29.5
31.9
34.3
36.9
40.5
44.2
49
52.8
58.9
71.2
86
max.
Complies with the following standards:
•
IEC 61000-4-2 exceeds level 4
- 30 kV (air discharge)
- 30 kV (contact discharge)
•
ISO10605 – C = 330 pF, R = 330
Ω
- 30 kV (air discharge)
-
30 kV (contact discharge)
•
ISO 7637-2
- Pulse 1: V
S
= -150 V
-
-
-
Pulse 2a: V
S
= +112 V
Pulse 3a: Vs = -220 V
Pulse 3b: Vs = +150 V
- Formerly pulses 5a and 5b
•
ISO 16750-2
-
Tests A and B
October 2015
This is information on a product in full production.
DocID026556 Rev 2
1/11
www.st.com
Characteristics
LDP01-xxAY
1
Characteristics
Table 2. Absolute maximum ratings (T
amb
= 25 °C)
Symbol
Parameter
ISO 10605 (C = 330 pF, R = 330
Ω
)
– contact discharge
– air discharge
IEC 61000-4-2
– contact discharge
– air discharge
Value
Unit
V
PP
Peak pulse voltage
30
30
30
30
-65 to + 175
-55 to + 175
260
kV
T
stg
T
j
T
L
Storage temperature range
Operating junction temperature range
Maximum lead temperature for soldering during 10 s
°C
°C
°C
Table 3. Thermal parameter
Symbol
R
th(j-c)
Junction to case
Parameter
D
2
PAK
Maximum
0.24
Unit
°C/W
Figure 1. Electrical characteristics (definitions)
I
I
F
Symbol
V
BR
V
CL
I
RM
V
RM
I
PP
V
F
R
d
a
T
=
=
=
=
=
=
=
=
Parameter
Breakdown voltage
Clamping voltage
Leakage current at V
RM
Stand-off voltage
Peak pulse current
Forward voltage drop
Dynamic impedance
Voltage temperature
V
F
V
CL
V
BR
V
RM
I
RM
V
Slope: 1/R
d
I
PP
Figure 2. Pulse definition for electrical characteristics
% I
PP
100
Pulse waveform
tr = rise (µs)
tp = pulse duration time (µs)
50
0
t
r
t
p
t
2/11
DocID026556 Rev 2
LDP01-xxAY
Table 4. Electrical characteristics (parameter)
I
RM
max. at V
RM
Order code
25 °C 175 °C
µA
LDP01-26AY
LDP01-28AY
LDP01-30AY
LDP01-33AY
LDP01-35AY
LDP01-39AY
LDP01-42AY
LDP01-47AY
LDP01-50AY
LDP01-56AY
LDP01-68AY
LDP01-82AY
1
1
1
1
1
1
1
1
1
1
1
1
100
100
100
100
100
100
100
100
100
100
100
100
V
22 24.4
24 26.7
27 28.9
28 31.1
30 33.3
33 36.7
36
40
V
BR
at I
R(1)
min. typ. max.
V
26
28
30
33
35
39
42
47
50
56
68
82
27.0
29.5
31.9
34.3
36.9
40.5
44.2
49
52.8
58.9
71.2
86
mA
1
1
1
1
1
1
1
1
1
1
1
1
V
CL
at I
PP
10/1000 µs
max.
V
36
40
40
43.5
45.5
51.5
57
63
68
76
92
113
A
140
120
125
110
95
85
77
65
55
48
42
35
R
D(2)
10/1000
µs
m
Ω
64
88
65
75
91
129
166
215
276
356
495
771
V
CL
at I
PP
8/20 µs
max.
V
42
45
49
56
60
66
71
76.5
81
90
110
135
A
1400
1250
1400
1250
1150
1050
1000
950
900
770
620
550
Characteristics
R
D(2)
8/20 µs
⍺
T
(3)
max.
m
Ω
11
12
12
17
20
24
27
29
31
40
63
89
10
-4
/°C
9.6
9.7
9.7
9.8
9.9
10
10
10.1
10.2
10.3
10.4
10.5
40 44.4
43 47.8
48 53.3
58 64.4
70 77.8
1. Pulse test: t
P
< 50 ms
2. To calculate maximum clamping voltage at other surge level, use the following formula: V
CL
max = R
D
x I
PP
+ V
BR
max
V
BR
at T
j
= V
BR
at 25 °C x (1 +
⍺
T x (T
j
- 25))
3. To calculate V
BR
or V
CL
versus junction temperature, use the following formulas:
V
CL
at T
j
= V
CL
at 25 °C x (1 +
⍺
T x (T
j
- 25))
Figure 3. Peak pulse power dissipation versus Figure 4. Peak pulse power versus exponential
initial junction temperature (LDP01-30AY)
pulse duration (LDP01-30AY)
6
5
4
3
2
1
0
P PP (kW)
10/1000 µs
1000
P
PP
(kW)
T
J
= 25 25
T
J initialinitial
= °C C
LDP01-30AY
LDP01-30AY
100
10
1
T j (°C )
0
25
50
75
100
125
150
175
200
0.1
0.01
t
p
(ms)
0.1
1
10
100
DocID026556 Rev 2
3/11
11
Characteristics
LDP01-xxAY
Figure 5. ISO7637-2, pulse 5a definition
td
Figure 6. Load dump capability (LDP01-30AY
Us = f(Ri) pulse 5a)
13.5+30 13.5+35 13.5+40 13.5+45 13.5+50 13.5+55 13.5+60 13.5+65 13.5+70 13.5+75
0.5
Serial resistance (Ω)
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
13.5 V + Us (V)
Us
td
=
td
40
0
=
30
td
0
m
s
=
10%
13.5 V
Battery voltage
t
m
s
15
0
m
s
1.5
Figure 7. ISO7637-2, pulse 5b definition
td
Us
Figure 8. Load dump capability (LDP01-30AY
Us* = f(Ri) pulse 5b, U
s
= 87 V)
13.5+20 13.5+25 13.5+30 13.5+35 13.5+40 13.5+45 13.5+50 13.5+55 13.5+60 13.5+65
0.5
0.6
13.5 V + Us* (V)
Serial resistance (
0.7
0.8
0.9
1
1.1
td
Us
*
10%
13.5 V
Battery voltage
0
t
=
td
1.2
1.3
1.4
1.5
td
=
0m
40
0m
15
s
=
s
s
0m
30
Figure 9. ISO 16750-2, test A definition
td
Us
Figure 10. Load dump capability (LDP01-30AY
Us = f(Ri), Test A)
0.5
0.6
0.7
0.8
0.9
30
35
40
45
50
55
60
65
70
75
80
85
90
Us (V)
Serial resistance (
td
1
1.1
1.2
1.3
1.4
1.5
=
40
0
m
s
td
=
0
30
m
td
=
0.1 (Us – U
A
)
U
A
Battery voltage
0
15
0
m
s
s
t
4/11
DocID026556 Rev 2
LDP01-xxAY
Characteristics
Figure 11. ISO 16750-2, test B definition
td
Us
Figure 12. Load dump capability (LDP01-30AY
Us* = f(Ri) Test B, U
s
= 87 V)
30
0.5
0.6
Us* (V)
35
40
45
50
55
60
65
70
75
80
Serial resistance (Ω)
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
td
Us
*
=
40
0
m
s
td
=
30
0
m
s
td
=
15
0
m
s
U
A
10%
Battery voltage
t
1.5
Figure 13. Clamping voltage versus peak pulse
current (maximum values)
Figure 14. ISO 16750-2 test B response
(U
A
+ U
s
* = 13.5 + 30 V, U
s
= 87 V, t
d
= 400 ms,
R
i
= 0.5
Ω
)
37.2 V
16.9 A
V
CL
(5 V/div)
I
PP
(5 A/div)
P
PP
(200 W/div)
50 ms/div
547 W
Figure 15. Peak forward voltage versus peak
forward current (typical values)
100.0
Figure 16. Leakage current versus junction
temperature (typical values)
10000
IFM(A)
IR(nA)
V
R
= V
RM
1000
10.0
100
1.0
10
LDP01-30AY
Tj initial = 25 °C
Tj initial = 175 °C
Pulse duration 2 ms
VFM(V)
0.1
1
Tj(°C)
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
1.1 1.2
25
50
75
100
125
150
175
DocID026556 Rev 2
5/11
11
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