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www.fairchildsemi.com
NC7SB3257
Absolute Maximum Ratings
(Note 1)
Recommended Operating
Conditions
(Note 2)
Note 1: Absolute maximum ratings are DC values beyond which the device
may be damaged or have its useful life impaired. The datasheet specifica-
tions should be met, without exception, to ensure that the system design is
reliable over its power supply, temperature, and output/input loading vari-
ables. Fairchild does not recommend operation outside datasheet specifi-
cations.
Note 2: Control input must be held HIGH or LOW, it must not float.
Note 3: The input and output negative voltage ratings may be exceeded if
the input and output diode current ratings are observed.
DC Electrical Characteristics
Note 4: Measured by the voltage drop between A and B pins at the indicated current through the switch. On Resistance is determined by the lower of the
voltages on the two (A or B Ports).
Note 5: Per TTL driven Input (V
IN
=
3.4V, Control input only). A and B pins do not contribute to I
CC
.
Supply Voltage (V
CC
)
−
0.5V to
+
7.0V
DC Switch Voltage (V
S
)
−
0.5V to
+
7.0V
DC Output Voltage (V
IN
)
−
0.5V to
+
7.0V
DC Input Diode Current (I
IK
)
@ (I
IK
) V
IN
<
0V
−
50 mA
DC Output Current (I
OUT
)
128 mA
DC V
CC
or Ground Current (I
CC
/I
GND
)
±
100 mA
Storage Temperature Range (T
STG
)
−
65
°
C to
+
150
°
C
Junction Lead Temperature under Bias (T
J
)
+
150
°
C
Lead Temperature (T
L
)
(Soldering, 10 seconds)
+
260
°
C
Power Dissipation (P
D
) @
+
85
°
C
180 mW
Supply Voltage Operating (V
CC
)
4.0V to 5.5V
Control Input Voltage (V
IN
)
0V to V
CC
Switch Input Voltage (V
IN
)
0V to V
CC
Output Voltage (V
OUT
)
0V to V
CC
Operating Temperature (T
A
)
−
40
°
C to
+
85
°
C
Input Rise and Fall Time (t
r
, t
f
)
Control Input V
CC
=
4.0V to 5.5V
0 ns/V to 5 ns/V
Thermal Resistance (
θ
JA
)
350
°
C/W
Symbol
Parameter
V
CC
T
A
=
−
40
°
C to
+
85
°
C
Units
Conditions
(V)
Min
Typ
Max
V
IK
Clamp Diode Voltage
4.5
−
1.2
V
I
IN
=
−
18 mA
V
IH
HIGH Level Input Voltage
4.5
−
5.5
2.0
V
V
IL
LOW Level Input Voltage
4.5
−
5.5
0.8
I
IN
Input Leakage Current
5.5
±
1
µ
A
0
≤
V
IN
≤
5.5V
I
OFF
OFF State Leakage Current
5.5
±
1
µ
A
0
≤
A, B
≤
V
CC
R
ON
Switch ON Resistance (Note 4)
4.5
3
7
Ω
V
IN
=
0V, I
IN
=
64 mA
4.5
3
7
Ω
V
IN
=
0V, I
IN
=
30 mA
4.5
6
15
Ω
V
IN
=
2.4V, I
IN
=
15 mA
4.0
10
20
Ω
V
IN
=
2.4V, I
IN
=
15 mA
I
CC
Quiescent Supply Current
5.5
10
µ
A
V
IN
=
V
CC
or GND
I
OUT
=
0
∆
I
CC
Increase in I
CC
Per Input (Note 5)
5.5
0.9
2.5
mA
V
IN
=
3.4V, I
O
=
0
Control Input Only
