BAS678 [NXP]
High-speed diode; 高速二极管
| 型号： | BAS678 |
| 厂家： | 
NXP |
| 描述： | High-speed diode |
| 文件： | 总7页 (文件大小：45K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DISCRETE SEMICONDUCTORS
DATA SHEET
book, halfpage
BAS678
High-speed diode
1996 Sep 10
Product specification
Supersedes data of April 1996
File under Discrete Semiconductors, SC01
Philips Semiconductors
Product specification
High-speed diode
BAS678
FEATURES
DESCRIPTION
PINNING
PIN
• Small plastic SMD package
The BAS678 is a high-speed
switching diode fabricated in planar
technology, and encapsulated in the
small rectangular plastic SMD SOT23
package.
DESCRIPTION
• High switching speed: max. 6 ns
1
2
3
anode
• Continuous reverse voltage:
max. 80 V
not connected
cathode
• Repetitive peak reverse voltage:
max. 100 V
• Repetitive peak forward current:
max. 600 mA.
handbookpa2ge
1
2
n.c.
APPLICATIONS
1
• High-speed switching in hybrid
thick and thin-film circuits.
3
3
MAM185
Marking code: L52.
Fig.1 Simplified outline (SOT23) and symbol.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
100
80
UNIT
VRRM
VR
repetitive peak reverse voltage
continuous reverse voltage
continuous forward current
repetitive peak forward current
−
−
−
−
V
V
IF
see Fig.2; note 1
250
600
mA
mA
IFRM
IFSM
non-repetitive peak forward current square wave; Tj = 25 °C prior to
surge; see Fig.4
t = 1 µs
−
−
9
3
A
t = 100 µs
t = 10 ms
A
−
1.7
A
Ptot
Tstg
Tj
total power dissipation
storage temperature
junction temperature
Tamb = 25 °C; note 1
−
250
+150
150
mW
°C
°C
−65
−
Note
1. Device mounted on an FR4 printed-circuit board.
1996 Sep 10
2
Philips Semiconductors
Product specification
High-speed diode
BAS678
ELECTRICAL CHARACTERISTICS
Tj = 25 °C; unless otherwise specified.
SYMBOL
PARAMETER
forward voltage
CONDITIONS
see 3; IF = 200 mA; d.c.; note 1
see Fig.5
MIN.
MAX.
UNIT
VF
IR
−
1.0
V
reverse current
VR = 10 V
−
−
−
−
−
15
100
50
2
nA
nA
µA
pF
ns
VR = 75 V
VR = 75 V; Tj = 150 °C
f = 1 MHz; VR = 0; see Fig.6
Cd
trr
diode capacitance
reverse recovery time
when switched from IF = 400 mA to
IR = 400 mA; RL = 100 Ω;
6
measured at IR = 40 mA; see Fig.7
Vfr
forward recovery voltage
when switched from IF = 10 mA;
tr = 20 ns; see Fig.8
−
2
V
Note
1. Tamb = 25 °C; device has reached the thermal equilibrium when mounted on an FR4 printed-circuit board.
THERMAL CHARACTERISTICS
SYMBOL
Rth j-tp
PARAMETER
CONDITIONS
VALUE
UNIT
thermal resistance from junction to tie-point
330
500
K/W
K/W
Rth j-a
thermal resistance from junction to ambient note 1
Note
1. Device mounted on an FR4 printed-circuit board.
1996 Sep 10
3
Philips Semiconductors
Product specification
High-speed diode
BAS678
GRAPHICAL DATA
MBG441
MBH279
300
300
handbook, halfpage
handbook, halfpage
I
I
F
F
(mA)
(mA)
200
200
100
100
0
0
0
0
o
100
200
1
2
T
( C)
V
(V)
amb
F
Tj = 25 °C.
Device mounted on an FR4 printed-circuit board.
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.
MBG703
2
10
I
FSM
(A)
10
1
−1
10
2
3
4
1
10
10
10
10
t
(µs)
p
Based on square wave currents.
Tj = 25 °C prior to surge.
Fig.4 Maximum permissible non-repetitive peak forward current as a function of pulse duration.
1996 Sep 10
4
Philips Semiconductors
Product specification
High-speed diode
BAS678
MBH284
MBH281
2
10
2.0
handbook, halfpage
handbook, halfpage
I
C
d
R
(µA)
(pF)
1.5
10
(1)
(2)
1
1.0
0.5
−1
10
−2
10
0
0
o
0
100
200
10
20
30
T ( C)
j
V
(V)
R
(1) VR = 75 V; maximum values.
(2) VR = 75 V; typical values.
f = 1 MHz; Tj = 25 °C.
Fig.5 Reverse current as a function of
junction temperature.
Fig.6 Diode capacitance as a function of reverse
voltage; typical values.
1996 Sep 10
5
Philips Semiconductors
Product specification
High-speed diode
BAS678
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
(1) IR = 40 mA.
Fig.7 Reverse recovery voltage test circuit and waveforms.
I
1 kΩ
450 Ω
I
V
90%
R
= 50 Ω
S
OSCILLOSCOPE
V
fr
D.U.T.
R = 50 Ω
i
10%
MGA882
t
t
t
t
p
r
input
signal
output
signal
Fig.8 Forward recovery voltage test circuit and waveforms.
6
1996 Sep 10
Philips Semiconductors
Product specification
High-speed diode
BAS678
PACKAGE OUTLINE
3.0
2.8
B
1.9
0.150
0.090
A
M
0.2
0.55
0.45
0.95
A
2
1
0.1
max
o
10
max
2.5
max
1.4
1.2
o
10
max
3
1.1
max
0.48
0.38
0.1 M
A B
o
MBC846
30
max
TOP VIEW
Dimensions in mm.
Fig.9 SOT23.
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 Sep 10
7
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