LM56CIM/NOPB National Semiconductor, LM56CIM/NOPB Datasheet - Page 2

• Manufacturer Part Number: LM56CIM/NOPB
• Description: IC, LOW POWER THERMOSTAT, ± 3°C, 8-SOIC
• Manufacturer: National Semiconductor

Specifications of LM56CIM/NOPB

• Ic Output Type: Digital
• Sensing Accuracy Range: ± 3°C
• Supply Current: 230µA
• Supply Voltage Range: 2.7V To 10V
• Sensor Case Style: SOIC
• No. Of Pins: 8
• Msl: MSL 1 - Unlimited
• Termination Type: SMD
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Accuracy %: 3°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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Typical Application
V
V
where:
(R1 + R2 + R3) = 27 kΩ and
V
R1 = V
R2 = (V
R3 = 27 kΩ − R1 − R2
T1
T2
T1 or T2
= 1.250V x (R1)/(R1 + R2 + R3)
= 1.250V x (R1 + R2)/(R1 + R2 + R3)
T1
T2
= [6.20 mV/°C x T] + 395 mV therefore:
/(1.25V) x 27 kΩ
/(1.25V) x 27 kΩ) − R1
FIGURE 1. Microprocessor Thermal Management
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