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參數(shù)資料
| 型號： | TLV431AQDR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PDSO8 |
| 封裝： | PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 23/25頁 |
| 文件大小： | 511K |
| 代理商： | TLV431AQDR |
TLV431, TLV431A, TLV431B
LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS139M JULY 1996 REVISED OCTOBER 2004
7
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
VREF
Reference voltage
VKA = VREF,
TA = full range
TLV431C
1.210
1.27
V
VREF
Reference voltage
VKA = VREF,
IK = 10 mA
TA = full range
(see Note 4 and
Figure 1)
TLV431I
1.202
1.278
V
IK = 10 mA
(see Note 4 and
Figure 1)
TLV431Q
1.194
1.286
VREF deviation over full
VKA = VREF, IK = 10 mA
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
0.05
0.3
Iref deviation over full
IK = 10 mA, R1 = 10 k, R2 = open
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
IK(min)
Minimum cathode current for
VKA = VREF (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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLV431AQPK | 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 |
| TLV431AQPKG3 | 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 |
| TLV431ASN1T1 | 功能描述:基準電壓& 基準電流 1.24-16V ADJ 1-100mA 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 |
| TLV431ASN1T1G | 功能描述:基準電壓& 基準電流 1.24-16V ADJ 1-100mA 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 |
| TLV431ASN1T1G-CUT TAPE | 制造商:ON 功能描述:TLV Series 1.24 V Low Voltage Precision Adjustable Shunt Regulator - SOT-23-3 |
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