LM56 National Semiconductor, LM56 Datasheet - Page 4

• Manufacturer Part Number: LM56
• Description: Dual Output Low Power Thermostat
• Manufacturer: National Semiconductor

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V
I
Digital Outputs
I
V
S
OUT(“1”)
LM56 Electrical Characteristics
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func-
tional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed speci-
fications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions.
Note 2: When the input voltage (V
mum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of 5 mA to four.
Note 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
bient thermal resistance) and T
in the Absolute Maximum Ratings, whichever is lower. For this device, T
types when board mounted follow:
Note 4: The human body model is a 100 pF capacitor discharge through a 1.5 k resistor into each pin. The machine model is a 200 pF capacitor discharged directly
into each pin.
Note 5: See AN450 “Surface Mounting Methods and Their Effects on Product Reliability” or the section titled “Surface Mount” found in any post 1986 National Semi-
conductor Linear Data Book for other methods of soldering surface mount devices.
Note 6: Typicals are at T
Note 7: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
The following specifications apply for V
its apply for T
+
OUT(“0”)
Symbol
Power Supply
A
= T
Supply Current
Logical “1” Output Leakage
Current
Logical “0” Output Voltage
J
J
= T
= T
A
A
(ambient temperature). The maximum allowable power dissipation at any temperature is P
= 25˚C and represent most likely parametric norm.
MIN
I
) at any pin exceeds the power supply (V
Parameter
to T
MAX
; all other limits T
+
= 2.7 V
Package Type
DC
MUA08A
, and V
M08A
V
V
V
I
A
OUT
Jmax
+
+
+
= T
REF
= +10V
= +2.7V
= +5.0V
Conditions
I
<
= +50 µA
= 125˚C. For this device the typical thermal resistance (
J
GND or V
load current = 50 µA unless otherwise specified. Boldface lim-
= 25˚C unless otherwise specified.
4
I
>
110˚C/W
250˚C/W
V
+
), the current at that pin should be limited to 5 mA. The 20 mA maxi-
JA
(Note 6)
Jmax
Typical
(maximum junction temperature),
D
= (T
(Note 7)
Limits
Jmax
230
230
0.4
1
–T
JA
A
)/
) of the different package
JA
or the number given
JA
(junction to am-
µA (max)
µA (max)
µA (max)
(Limits)
V (max)
Units