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LMV431AIM5 Datasheet(PDF) 5 Page - Texas Instruments

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Part # LMV431AIM5
Description  Low-Voltage (1.24V) Adjustable Precision Shunt Regulators
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LMV431AIM5 Datasheet(HTML) 5 Page - Texas Instruments

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Where:T2 − T1 = full temperature change.∝VREF can be positive or negative depending
on whether the slope is positive or negative.Example: VDEV = 6.0mV, REF = 1240mV, T2 − T1 = 125°C.
(2)
The dynamic output impedance, rZ, is defined as:
When the device is programmed with two external resistors, R1 and R2, (see
Figure 5 ), the dynamic output impedance of the overall circuit, rZ, is defined as:
LMV431, LMV431A, LMV431B
www.ti.com
SNVS041F – MAY 2004 – REVISED MAY 2005
LMV431I ELECTRICAL CHARACTERISTICS
TA = 25°C unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
s
VREF
Reference Voltage
VZ = VREF, IZ = 10mA
TA = 25°C
1.222
1.24
1.258
V
(See Figure 4 )
TA = Full Range
1.202
1.278
VDEV
Deviation of Reference Input Voltage Over
VZ = VREF, IZ = 10mA,
6
20
mV
Temperature (1)
TA = Full Range (See Figure 4)
ΔVREF/
Ratio of the Change in Reference Voltage
IZ = 10mA (see Figure 5 )
−1.5
−2.7
mV/
ΔVZ
to the Change in Cathode Voltage
VZ from VREF to 6V
V
R1 = 10k, R2 = ∞ and 2.6k
IREF
Reference Input Current
R1 = 10kΩ, R2 = ∞
0.15
0.5
μA
II = 10mA (see Figure 5)
∝IREF
Deviation of Reference Input Current over
R1 = 10kΩ, R2 = ∞,
0.1
0.4
μA
Temperature
II = 10mA, TA = Full Range (see Figure 5)
IZ(MIN)
Minimum Cathode Current for Regulation
VZ = VREF(see Figure 4)
55
80
µA
IZ(OFF)
Off-State Current
VZ = 6V, VREF = 0V (see Figure 6 )
0.001
0.1
μA
rZ
Dynamic Output Impedance (2)
VZ = VREF, IZ = 0.1mA to 15mA
Frequency = 0Hz (see Figure 4)
0.25
0.4
Ω
(1)
Deviation of reference input voltage, VDEV, is defined as the maximum variation of the reference input voltage over the full temperature
range.See following:
The average temperature coefficient of the reference input voltage,
∝VREF, is defined as:
Copyright © 2004–2005, Texas Instruments Incorporated
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Product Folder Links: LMV431 LMV431A LMV431B


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