LM57CISD-5/NOPB National Semiconductor, LM57CISD-5/NOPB Datasheet - Page 7

• Manufacturer Part Number: LM57CISD-5/NOPB
• Description: IC, TEMPERATURE SW/SENSOR, ± 1.3°C, LLP8
• Manufacturer: National Semiconductor

Specifications of LM57CISD-5/NOPB

• Ic Output Type: Voltage
• Sensing Accuracy Range: ± 1.3°C
• Supply Current: 24µA
• Supply Voltage Range: 2.4V To 5.5V
• Sensor Case Style: LLP
• No. Of Pins: 8
• Msl: MSL 3 - 168 Hours
• Accuracy %: 1.3°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Note 1: Absolute Maximum Ratings indicate limits beyond which damage may occur. Operating Ratings indicate conditions for which the device is intended to
be functional, but specific performance is not guaranteed. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: The Human Body Model (HBM) is a 100 pF capacitor charged to the specified voltage then discharged through a 1.5 kΩ resistor into each pin. The
Machine Model (MM) is a 200 pF capacitor charged to the specified voltage then discharged directly into each pin. The Charged Device Model (CDM) is a specified
circuit characterizing an ESD event that occurs when a device acquires charge through some triboelectric (frictional) or electrostatic induction processes and then
abruptly touches a grounded object or surface.
Note 3: Reflow temperature profiles are different for lead-free and non-lead-free packages.
Note 4: Typicals are at T
= T
= 25°C and represent most likely parametric norm.
J
A
Note 5: Limits are guaranteed to National's AOQL (Average Outgoing Quality Level).
Note 6: Line regulation (DC) is calculated by subtracting the output voltage at the highest supply voltage from the output voltage at the lowest supply voltage.
The typical DC line regulation specification does not include the output voltage shift discussed in Section 5.3.
Note 7: Supply Current refers to the quiescent current of the LM57 only and does not include any load current
Note 8: This current is leakage current only and is therefore highest at high temperatures. Prototype test indicate that the leakage is well below 1 μA over the full
temperature range. This 1 μA specification reflects the limitations of measuring leakage at room temperature. For this reason only, the leakage current is not
guaranteed at a lower value.
Note 9: Accuracy is defined as the error between the measured and reference output voltages, tabulated in the Conversion Table at the specified conditions of
supply gain setting, voltage, and temperature (expressed in °C). Accuracy limits include line regulation within the specified conditions. Accuracy limits do not
include load regulation; they assume no DC load.
Note 10: Source currents are flowing out of the LM57. Sink currents are flowing into the LM57. Load Regulation is calculated by measuring Vtemp at 0 μA and
subtracting the value with the conditions specified.
Note 11: Guaranteed by design and characterization.
Definitions of t
and t
EN
V
TEMP
30080551
30080550
Typical Performance Characteristics
Supply Current vs. Supply Voltage
Supply Current vs. Temperature
30080570
30080569
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