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TLVH431AIPKG3 Datasheet(PDF) 7 Page - Texas Instruments

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Part # TLVH431AIPKG3
Description  Low-Voltage Adjustable Precision Shunt Regulators
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TLVH431AIPKG3 Datasheet(HTML) 7 Page - Texas Instruments

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REF(dev )
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REF
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DVREF
DVKA
TLVH431, TLVH431A, TLVH431B
TLVH432, TLVH432A, TLVH432B
www.ti.com
SLVS555J – NOVEMBER 2004 – REVISED JANUARY 2015
7.7 TLVH43xB Electrical Characteristics
at 25°C free-air temperature (unless otherwise noted)
TLVH431B
TLVH432B
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
TA = 25°C
1.234
1.24
1.246
TLVH431BC
1.227
1.253
VKA = VREF,
VREF
Reference voltage
V
TA = full range,
IK = 10 mA
TLVH431BI
1.224
1.259
See Figure 18(1)
TLVH431BQ
1.221
1.265
TLVH431BC
4
12
VREF deviation over full
VREF(dev)
VKA = VREF, IK = 10 mA, See Figure 18
(1)
TLVH431BI
6
20
mV
temperature range(2)
TLVH431BQ
11
31
Ratio of VREF change to
IK = 10 mA, VK = VREF to 18 V, See Figure 19
–1.5
–2.7
mV/V
cathode voltage change
Iref
Reference terminal current
IK = 10 mA, R1 = 10 kΩ, R2 = open, See Figure 19
0.1
0.5
μA
TLVH431BC
0.05
0.3
Iref deviation over full
IK = 10 mA, R1 = 10 kΩ, R2 = open,
Iref(dev)
TLVH431BI
0.1
0.4
μA
temperature range(2)
See Figure 19(1)
TLVH431BQ
0.15
0.5
Minimum cathode current
IK(min)
VKA = VREF, See Figure 18
60
100
μA
for regulation
IK(off)
Off-state cathode current
VREF = 0, VKA = 18 V, See Figure 20
0.02
0.1
μA
|zKA|
Dynamic impedance(3)
VKA = VREF, f ≤ 1 kHz, IK = 0.1 mA to 70 mA, See Figure 18
0.25
0.4
(1)
Full temperature ranges are –40°C to 125°C for TLVH431Q, –40°C to 85°C for TLVH431I, and 0°C to 70°C for TLVH431C.
(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)
The dynamic impedance is defined as:
When the device is operating with two external resistors (see Figure 19), the total dynamic impedance of the circuit is defined as:
Copyright © 2004–2015, Texas Instruments Incorporated
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Product Folder Links: TLVH431 TLVH431A TLVH431B TLVH432 TLVH432A TLVH432B


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