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參數(shù)資料
| 型號： | 2878 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | QUAD HIGH-CURRENT DARLINGTON SWITCHES |
| 中文描述： | 四大電流達(dá)林頓開關(guān) |
| 文件頁數(shù)： | 3/8頁 |
| 文件大小： | 222K |
| 代理商： | 2878 |
2878
AND
2879
QUAD HIGH-CURRENT
DARLINGTON SWITCHES
www.allegromicro.com
Caution: High-current tests are pulse tests or require heat sinking.
Test
Fig.
Applicable
Devices
Limits
Characteristic
Symbol
Test Conditions
Min.
Max.
Units
Output Leakage Current
I
CEX
1
UDN2878W
V
CE
= 50 V
—
100
μ
A
V
CE
= 50 V, T
A
= +70
°
C
—
500
μ
A
UDN2879W/W-2
V
CE
= 80 V
—
100
μ
A
V
CE
= 80 V, T
A
= +70
°
C
—
500
μ
A
Output Sustaining
Voltage
V
CE(sus)
—
UDN2878W
l
C
= 4 A, L = 10 mH
35
—
V
UDN2879W
l
C
= 4 A, L = 10 mH
50
—
V
UDN2879W-2
l
C
= 3 A, L = 10 mH
50
—
V
Collector-Emitter
Saturation Voltage
V
CE(SAT)
2
All
l
C
= 500 mA, V
IN
= 2.75 V
—
1.1
V
l
C
= 1.0 A, V
IN
= 2.75 V
—
1.3
V
l
C
= 2.0 A, V
IN
= 2.75 V
—
1.5
V
l
C
= 3.0 A, V
IN
= 2.75 V
—
1.9
V
UDN2878/79W
l
C
= 4.0 A, V
IN
= 3.0 V
—
2.4
V
Input Current
I
IN
3
All
V
IN
= 2.75 V
—
550
μ
A
V
IN
= 3.75 V
—
1000
μ
A
Input Voltage
V
IN(ON)
4
All
V
CE
= 2.2 V, l
C
= 3.0 A
—
2.75
V
UDN2878/79W
V
CE
= 2.2 V, l
C
= 4.0 A
—
2.75
V
Supply Current per Driver
I
S
7
All
l
C
= 500 mA, V
IN
= 2.75 V
—
6.0
mA
Turn-On Delay
t
PLH
—
All
0.5 E
in
to 0.5 E
out
—
1.0
μ
s
Turn-Off Delay
t
PHL
—
All
0.5 E
in
to 0.5 E
out
, l
C
= 3.0 A
—
1.5
μ
s
Clamp Diode
Leakage Current
I
R
5
All
V
R
= 50 V
—
50
μ
A
V
R
= 50 V, T
A
= +70
°
C
—
100
μ
A
UDN2879W/W-2
V
R
= 80 V
—
50
μ
A
V
R
= 80 V, T
A
= +70
°
C
—
100
μ
A
Clamp Diode
Forward Voltage
V
F
6
All
I
F
= 3.0 A
—
2.5
V
UDN2878/79W
I
F
= 4.0 A
—
3.0
V
ELECTRICAL CHARACTERISTICS at V
S
= 5.0 V, T
A
= +25
°
C (unless otherwise noted).
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