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TLV431IDBV Datasheet(PDF) 7 Page - Texas Instruments

Part # TLV431IDBV
Description  Low-Voltage Adjustable Precision Shunt Regulator
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TLV431IDBV Datasheet(HTML) 7 Page - Texas Instruments

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REF(dev )
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REF
KA
V
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D
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(4)
The dynamic impedance is defined as
TLV431, TLV431A, TLV431B
www.ti.com
SLVS139V – JULY 1996 – REVISED JANUARY 2015
7.7 Electrical Characteristics for TLV431B
at 25°C free-air temperature (unless otherwise noted)
TLV431B
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
TA = 25°C
1.234
1.24
1.246
TLV431BC
1.227
1.253
VKA = VREF,
VREF
Reference voltage
V
TA = full range
(1)
IK = 10 mA
TLV431BI
1.224
1.259
(see Figure 19)
TLV431BQ
1.221
1.265
TLV431BC
4
12
VKA = VREF , IK = 10 mA
(1)
VREF deviation over full temperature
VREF(dev)
TLV431BI
6
20
mV
range(2)
(see Figure 19)
TLV431BQ
11
31
Ratio of VREF change in cathode
VKA = VREF to 6 V, IK = 10 mA
–1.5
–2.7
mV/V
voltage change
(see Figure 20)
IK = 10 mA, R1 = 10 kΩ,
R2 = open
Iref
Reference terminal current
0.1
0.5
µA
(see Figure 20)
TLV431BC
0.05
0.3
IK = 10 mA, R1 = 10 kΩ,
Iref deviation over full temperature
Iref(dev)
R2 = open(3)
TLV431BI
0.1
0.4
µA
range(2)
(see Figure 20)
TLV431BQ
0.15
0.5
Minimum cathode current for
IK(min)
VKA = VREF (see Figure 19)
55
100
µA
regulation
IK(off)
Off-state cathode current
VREF = 0, VKA = 6 V (see Figure 21)
0.001
0.1
µA
VKA = VREF, f ≤ 1 kHz, IK = 0.1 mA to 15 mA
|zKA|
Dynamic impedance(4)
0.25
0.4
Ω
(see Figure 19)
(1)
Full temperature ranges are –40°C to 125°C for TLV431Q, –40°C to 85°C for TLV431I, and 0°C to 70°C for TLV431C.
(2)
The deviation parameters VREF(dev) and Iref(dev) are defined as the differences between the maximum and minimum values obtained over
the rated temperature range. The average full-range temperature coefficient of the reference input voltage,
αVREF, is defined as:
where
ΔTA is the rated operating free-air temperature range of the device.
αVREF can be positive or negative, depending on whether minimum VREF or maximum VREF, respectively, occurs at the lower
temperature.
(3)
Full temperature ranges are –40°C to 125°C for TLV431Q, –40°C to 85°C for TLV431I, and 0°C to 70°C for TLV431C.
spacer
When the device is operating with two external resistors (see Figure 20), the total dynamic impedance of the circuit is defined as:
Copyright © 1996–2015, Texas Instruments Incorporated
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Product Folder Links: TLV431 TLV431A TLV431B


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