SNOSBT5D – APRIL 1998 – REVISED MARCH 2013
(1) (2)
Absolute Maximum Ratings
Supply Voltage, V
Input Voltage
Power Dissipation
(3)
+
lm392-N
32V or ±16V
32V
−0.3V
to +32V
820 mW
530 mW
Continuous
50 mA
0°C to +70°C
−65°C
to +150°C
260°C
(4)
(5)
Differential Input Voltage
Molded DIP (LM392N)
Small Outline Package (LM392M)
Output Short-Circuit to Ground
Input Current (V
IN
<
−0.3
V
DC
)
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 seconds)
ESD rating to be determined.
Soldering Information
Dual-in-Line Package
Soldering (10 seconds)
Small Outline Package
Vapor Phase (60 seconds)
Infrared (15 seconds)
(1)
(2)
(3)
260°C
215°C
220°C
(4)
(5)
“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits.
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
For operating at temperatures above 25°C, the lm392-N must be derated based on a 125°C maximum junction temperature and a
thermal resistance of 122°C/W which applies for the device soldered in a printed circuit board, operating in still air ambient. The
dissipation is the total of both amplifiers—use external resistors, where possible, to allow the amplifier to saturate or to reduce the power
which is dissipated in the integrated circuit.
Short circuits from the output to V
+
can cause excessive heating and eventual destruction. When considering short circuits to ground,
the maximum output current is approximately 40 mA for the op amp and 30 mA for the comparator independent of the magnitude of V
+
.
At values of supply voltage in excess of 15V, continuous short circuits can exceed the power dissipation ratings and cause eventual
destruction.
This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of
the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is
also lateral NPN parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the amplifiers to go to
the V
+
voltage level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and
normal output states will re-establish when the input voltage, which was negative, again returns to a value greater than
−0.3V
(at 25°C).
Electrical Characteristics
(V
+
= 5 V
DC
; specifications apply to both amplifiers unless otherwise stated)
Parameter
Input Offset Voltage
Input Bias Current
Input Offset Current
Input Common-Mode Voltage Range
Supply Current
Supply Current
T
A
= 25°C,
(2)
(3)
(1)
Conditions
lm392-N
Min
Typ
±2
50
±5
0
1
0.5
Max
±5
250
±50
V
+
−1.5
2
1
Units
mV
nA
nA
V
mA
mA
IN(+) or IN(−), T
A
=25°C,
IN(+)
−
IN(−), T
A
= 25°C
V
+
= 30 V
DC
, T
A
= 25°C,
R
L
=
∞
, V = 30 V
R
L
=
∞
, V
+
= 5 V
+
, V
CM
= 0V
(4)
(1)
(2)
(3)
(4)
These specifications apply for V
+
= 5V, unless otherwise stated. For the lm392-N, temperature specifications are limited to 0°C
≤
T
A
≤
+70°C.
At output switch point, V
O
≃
1.4V, R
S
= 0Ω with V
+
from 5V to 30V; and over the full input common-mode range (0V to V
+
−
1.5V).
The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the
state of the output so no loading change exists on the input lines.
The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end
of the common-mode voltage range is V
+
−
1.5V, but either or both inputs can go to 32V without damage.
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