LM431BIM/NOPB National Semiconductor, LM431BIM/NOPB Datasheet - Page 5

• Manufacturer Part Number: LM431BIM/NOPB
• Description: IC REG ADJ ZENER SHUNT 8-SOIC
• Manufacturer: National Semiconductor

Specifications of LM431BIM/NOPB

• Reference Type: Shunt, Adjustable
• Voltage - Output: 2.495 ~ 36 V
• Tolerance: ±1%
• Temperature Coefficient: 50ppm/°C
• Number Of Channels: 1
• Current - Cathode: 400µA
• Current - Output: 100mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Fixed / Adjust / Prog: Adjust
• Output Voltage (max): 2.495 to 37V
• Reference Voltage Accuracy (max): 1
• Input Voltage (max): 37V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: SOIC N
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Input: -
• Current - Quiescent: -
• Lead Free Status / Rohs Status: Compliant
• Other names: *LM431BIM; *LM431BIM/NOPB; LM431BIM

1005507
The average temperature coefficient of the reference input voltage, V
, is defined as:
REF
Where:
T
− T
= full temperature change (0-70°C).
2
1
V
can be positive or negative depending on whether the slope is positive or negative.
REF
Example: V
= 8.0 mV, V
= 2495 mV, T
− T
= 70°C, slope is positive.
DEV
REF
2
1
Note 5: The dynamic output impedance, r
, is defined as:
Z
When the device is programmed with two external resistors, R1 and R2, (see
Figure 2
), the dynamic output impedance of the overall circuit, r
, is defined as:
Z
Equivalent Circuit
1005503
5
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