LDP24AS [STMICROELECTRONICS]
UNIDIRECTIONAL, SILICON, TVS DIODE, PLASTIC, AG, 2 PIN;
| 型号： | LDP24AS |
| 厂家： | 
ST |
| 描述： | UNIDIRECTIONAL, SILICON, TVS DIODE, PLASTIC, AG, 2 PIN |
| 文件： | 总5页 (文件大小：47K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
LDP24A
TRANSIENT PROTECTION
LOAD DUMP
FEATURES
TRANSIENT VOLTAGE SUPPRESSOR
DIODE ESPECIALLY DESIGNED FOR
LOAD DUMP PROTECTION
COMPLIANT WITH MAIN STANDARDS
SUCH AS:
ISO / DTR 7637
DESCRIPTION
Transient voltage suppressor diodes especially
useful in protecting integrated circuits, MOS, hy-
brids and other overvoltages sensitive semicon-
ductors and components.
AG
(Plastic)
ABSOLUTE RATINGS (limiting values)
Symbol
Parameter
Peak pulse load dump overvoltage
Value
Unit
VPP
Tamb = 85°C
Tamb = 100°C
100
V
See note 1
P
Power dissipation on infinite heatsink
Non repetitive surge peak forward current.
5
W
A
IFSM
Tj initial = 25°C
tp = 10 ms
500
Tstg
Tj
Storage temperature range.
- 65 to + 175
175
°C
°C
°C
Maximum operating temperature
TL
Maximum lead temperature for soldering
during 10 sec at 4 mm from case.
230
THERMAL RESISTANCES
Symbol
Parameter
Value
Unit
Rth (j-a)
Junction ambient thermal resistance on infinite heatsink
Llead = 10 mm
15
°C/W
Note 1: For surges greater than the maximum values, the diode will present a short-circuit Anode - Cathode.
April 2000 - Ed: 4B
1/5
LDP24A
I
ELECTRICAL CHARACTERISTICS
I
F
Symbol
VRM
VBR
VCL
IPP
Parameter
Stand-off voltage.
V
V
CL
BR
Breakdown voltage.
Clamping voltage.
V
V
F
RM
V
Peak pulse current.
Temperature coefficient of VBR
Capacitance
I
I
RM
αT
C
.
IRM
Leakage current at VRM
VF
Peak forward voltage drop (IFM = 10A)
VF = 0.9 Volt Typ.
PP
Symbol
Ipp
Test Conditions
Min.
Typ.
Max.
Unit
Pulse duration: 300ms
30
A
IRM
TL = 25°C
TL = 85°C
V
RM = 24 V
50
300
µA
µA
VRM = 24 V
VBR
VCL
αT
C
TL = 25°C
TL = 85°C
IR = 1mA
25
32
40
10
V
V
see table1
10 -4/°C
F = 1MHz
VR = 0V
8000
pF
LOAD DUMP TEST GENERATOR CIRCUIT (SCHAFFNER NSG 506 C). Issued from ISO / DTR 7637.
Table 1
Impulse
Vs (V)
N°5
86.5
13.5
2
Open circuit (voltage curve)
(Pulse test n°5)
t
Vbat (V)
Ri (Ω)
U(V)
tr
t (ms)
200 (*)
<10
5
offset
10% / 13.5V
90%
tr (ms)
Number
Vs
10%
60s between each pulse
(*) Generator setting
Vbat
0
t
2/5
LDP24A
Fig. 1: Peak pulse power versus exponential pulse
duration (Tj initial=85°C).
Fig. 2 : Peak pulse current versus exponential
pulse duration (Tj initial=85°C).
Ppp(kW)
Ipp(A)
10.0
200
5.0
100
50
2.0
1.0
0.5
20
0.2
tp(ms)
tp(ms)
0.1
10
1
2
5
10
20
50
100
1
2
5
10
20
50
100
Fig. 3: Relative variation of peak pulse power versus
junction temperature.
Fig. 4: Continous power dissipation versus ambient
temperature.
P(W)
Ppp[Tj] / Ppp [Tj initial=85°C]
6
1.2
Rth(j-a)=Rth(j-l)
5
1.0
0.8
0.6
0.4
4
3
Rth(j-a)=50°C/W
2
0.2
1
Tj (°C)
Tamb(°C)
0.0
0
0
25
50
75
100 125 150 175 200
0
25
50
75
100
125
150
175
Fig. 5: Variation of thermal impedance junction to
ambient versus pulse duration (printed circuit
board FR4, e(Cu)=35µm, SCu=1cm2).
Fig. 6 : Peak forward voltage drop versus peak
forward current (typical values).
IFM(A)
Zth(j-a)(°C/W)
200
100.0
Lleads=10mm
100
Tj=125°C
10.0
1.0
Tj=25°C
10
tp(s)
VFM(V)
0.1
1
1E-2
1E-1
1E+0
1E+1
1E+2
1E+3
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
3/5
LDP24A
Fig. 8: Junction capacitance versus reverse applied
voltage.
Fig. 7: Non repetitive surge peak forward current
versus sinusoidal pulse duration and correspond-
ing value of I2t.
C(nF)
IFSM(A) , I²t(A²s)
10
5000
F=1MHz
Vosc=30mV
Tj initial=25°C
I²t
2000
5
1000
500
IFSM
2
200
VR(V)
tp(ms)
1
100
1
2
5
10
20
50
10
20
50
100
ORDER CODE
LDP 24 A
AG Case
Load Dump Protection
Stand Off Voltage
4/5
LDP24A
PACKAGE MECHANICAL DATA
AG (Plastic)
B
A
B
O
/
C
note 1
note 1
L1
L1
O/
O
/
D
D
note 2
DIMENSIONS
Millimeters Inches
Min. Max. Min. Max.
REF.
NOTES
1- The lead is not controlled within zone L1.
2- The minimum axial length within which the device may be
placed bent at right angles is 0.79" (20 mm).
A
B
9
0.354
20
0.787
0.053
C
8
0.315
0.057
0.050
D
1.35
1.45
1.27
L1
Type
Marking
LDP24A
LDP24A
Package
AG
Weight
2.16g
Base qty
100
Delivery mode
Ammopack
LDP24A
LDP24ARL
AG
2.16g
1000
Tape & Reel
Resin meets UL94-V0
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