BAV45 [NXP]
Picoampere diode; Picoampere二极管
| 型号： | BAV45 |
| 厂家： | 
NXP |
| 描述： | Picoampere diode |
| 文件： | 总6页 (文件大小：40K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DISCRETE SEMICONDUCTORS
DATA SHEET
book, halfpage
BAV45
Picoampere diode
1996 Mar 13
Product specification
Supersedes data of July 1986
Philips Semiconductors
Product specification
Picoampere diode
BAV45
FEATURES
DESCRIPTION
• Extremely low leakage current:
max. 5 pA
Silicon diode in a metal TO-18 can. It has an extremely low leakage current over
a wide temperature range combined with a low capacitance and is not sensitive
to light.
• Low diode capacitance
• Light insensitive.
APPLICATION
a
• Clamping
• Holding
k
MAM207
• Peak follower
• Time delay circuits
• Logarithmic amplifiers
Fig.1 Simplified outline (SOT18/15; TO-18 except for the two leads)
and symbol.
• Protection of insulated gate
field-effect transistors.
CAUTION
Handle the device with care whilst soldering into the circuit. The extremely
low leakage current can only be guaranteed when the bottom is free from
solder flux or other contaminations.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VRRM
VR
repetitive peak reverse voltage
continuous reverse voltage
continuous forward current
repetitive peak forward current
total power dissipation
−
−
35
20
V
V
IF
see Fig.2
−
50
mA
mA
mW
°C
IFRM
Ptot
Tstg
Tj
−
100
200
+125
125
Tamb = 25 °C; note 1
−
storage temperature
−65
−
junction temperature
°C
Note
1. Device mounted on a FR4 printed-circuit board.
1996 Mar 13
2
Philips Semiconductors
Product specification
Picoampere diode
BAV45
ELECTRICAL CHARACTERISTICS
Tj = 25 °C unless otherwise specified.
SYMBOL
PARAMETER
forward voltage
CONDITIONS
IF = 10 mA; see Figs 3 and 4
MAX.
UNIT
VF
IR
1
V
reverse current
see Fig.5
VR = 5 V
5
250
10
pA
pA
pA
VR = 5 V; Tj = 80 °C
VR = 20 V
Cd
trr
diode capacitance
f = 1 MHz; VR = 0; see Fig.6
1.3 pF
600 ns
reverse recovery time
when switched from IF = 10 mA to IR = 10 mA;
RL = 100 Ω; measured at IR = 1 mA; see Fig.7
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
VALUE
UNIT
K/W
Rth j-a
thermal resistance from junction to ambient; note 1
500
Note
1. Device mounted on a FR4 printed-circuit board.
GRAPHICAL DATA
MBG528
MBG530
100
100
handbook, halfpage
handbook, halfpage
I
F
(mA)
80
I
F
(mA)
60
40
20
50
0
0
0
o
0
50
100
150
0.5
1.0
1.5
V
(V)
T
( C)
amb
F
Tj = 25 °C.
Fig.2 Maximum permissible continuous forward
current as a function of ambient
temperature.
Fig.3 Forward current as a function of forward
voltage; typical values.
1996 Mar 13
3
Philips Semiconductors
Product specification
Picoampere diode
BAV45
MBG529
4
10
handbook, halfpage
I
MBG527
R
10
10
handbook, halfpage
(pA)
I
F
3
10
(pA)
9
10
(1)
(2) (3)
(4)
2
10
8
10
10
7
10
1
0
o
50
100
150
T ( C)
j
6
10
(1) VR = 20 V; maximum values.
(2) VR = 5 V; maximum values.
(3)
VR = 20 V; typical values.
5
10
(4) VR = 5 V; typical values.
Fig.5 Reverse current as a function of junction
temperature.
4
10
3
10
MBG531
1.0
handbook, halfpage
2
C
d
10
(pF)
0.9
10
1
0.8
0.7
−1
10
0
0.25
0.50
0.75
1.00
(V)
V
F
−1
2
10
1
10
10
V
(V)
R
Tj = 25 °C.
f = 1 MHz; Tj = 25 °C.
Fig.4 Forward current as a function of forward
voltage; typical values.
Fig.6 Diode capacitance as a function of reverse
voltage; typical values.
1996 Mar 13
4
Philips Semiconductors
Product specification
Picoampere diode
BAV45
t
t
p
r
t
D.U.T.
10%
I
F
I
t
R
= 50 Ω
F
rr
S
SAMPLING
t
OSCILLOSCOPE
R = 50 Ω
V = V
I x R
F S
R
i
(1)
90%
V
R
MGA881
input signal
output signal
Fig.7 Reverse recovery time test circuit and waveforms.
1996 Mar 13
5
Philips Semiconductors
Product specification
Picoampere diode
BAV45
PACKAGE OUTLINE
1.16
max
o
45
1
O 0.51
max
O 4.8
max
1.17
max
2
2.54
5.8 max
5.3 max
12.7 min
MBA509
Dimensions in mm.
Fig.8 SOT18/15; TO-18 (except for the two leads).
DEFINITIONS
Data Sheet Status
Objective specification
Preliminary specification
Product specification
This data sheet contains target or goal specifications for product development.
This data sheet contains preliminary data; supplementary data may be published later.
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1996 Mar 13
6
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