參數(shù)資料
型號： TLV431IDBVRE4
廠商： TEXAS INSTRUMENTS INC
元件分類： 基準電壓源/電流源
英文描述： 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.24 V, PDSO5
封裝： GREEN, PLASTIC, SOT-23, 5 PIN
文件頁數(shù)： 38/41頁
文件大?。?/td> 1102K
代理商： TLV431IDBVRE4
TLV431, TLV431A, TLV431B
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR
SLVS139T JULY 1996 REVISED JUNE 2007
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TLV431 electrical characteristics at 25
°C free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TLV431
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TA = 25°C
1.222
1.24
1.258
V
Reference voltage
VKA = VREF,
TA = full range
TLV431C
1.21
1.27
V
VREF
Reference voltage
VKA = VREF,
IK = 10 mA
TA = full range
(see Note 4 and
TLV431I
1.202
1.278
V
(see Note 4 and
Figure 1)
TLV431Q
1.194
1.286
V
d
i ti
f ll
V
I
10
A
TLV431C
4
12
VREF(dev)
VREF deviation over full
temperature range (see Note 4)
VKA = VREF, IK = 10 mA
(see Note 4 and Figure 1)
TLV431I
6
20
mV
VREF(dev)
temperature range (see Note 4)
(see Note 4 and Figure 1)
TLV431Q
11
31
mV
VREF
VKA
Ratio of VREF change in cathode
voltage change
VKA = VREF to 6 V, IK = 10 mA (see Figure 2)
1.5
2.7
mV/V
Iref
Reference terminal current
IK = 10 mA, R1 = 10 k, R2 = open (see Figure 2)
0.15
0.5
A
TLV431C
005
03
I
d
i ti
f ll
I
10
A R1
10 k
R2
TLV431C
0.05
0.3
Iref(dev)
Iref deviation over full
temperature range (see Note 4)
IK = 10 mA, R1 = 10 k, R2 = open
(see Note 4 and Figure 2)
TLV431I
0.1
0.4
A
Iref(dev)
temperature range (see Note 4)
(see Note 4 and Figure 2)
TLV431Q
0.15
0.5
A
I
Minimum cathode current for
V
(see Figure 1)
TLV431C/I
55
80
A
IK(min)
Minimum cathode current for
regulation
VKA = VREF (see Figure 1)
TLV431Q
55
100
A
IK(off)
Off-state cathode current
VREF = 0, VKA = 6 V (see Figure 3)
0.001
0.1
A
|zKA|
Dynamic impedance
(see Note 5)
VKA = VREF, f ≤ 1 kHz,
IK = 0.1 mA to 15 mA (see Figure 1)
0.25
0.4
NOTES:
4. 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.
5. 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:
αV
REF
ppm
°C +
V
REF(dev)
V
REF (TA+25°C)
106
T
A
where
TA 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.
6. The dynamic impedance is defined as z
ka +
V
KA
I
K
When the device is operating with two external resistors (see Figure 2), the total dynamic impedance of the circuit is defined
as:
z
ka +
V
I [
z
ka
1
) R1
R2
相關(guān)PDF資料
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TLV431IDBVTE4 功能描述:基準電壓& 基準電流 Lo-Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
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