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參數資料
| 型號： | TLV431BQDBVRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | THREE TERM VOLTAGE REFERENCE, PDSO5 |
| 封裝： | GREEN, PLASTIC, SOT-23, 5 PIN |
| 文件頁數： | 14/19頁 |
| 文件大小： | 395K |
| 代理商： | TLV431BQDBVRQ1 |
TLV431AQ1, TLV431BQ1
LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS905 DECEMBER 2008
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TLV431A electrical characteristics at 25
°C free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TLV431A
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VREF
Reference voltage
VKA = VREF,
TA = 25°C
1.228
1.24
1.252
V
VREF
Reference voltage
VKA = VREF,
IK = 10 mA
TA = full range (see Figure 1)
1.209
1.271
V
VREF(dev)
VREF deviation over full
temperature range
VKA = VREF, IK = 10 mA (see Figure 1)
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
Iref(dev)
Iref deviation over full
temperature range
IK = 10 mA, R1 = 10 k, R2 = open (see Figure 2)
0.15
0.5
A
IK(min)
Minimum cathode current for
regulation
VKA = VREF (see Figure 1)
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 §
VKA = VREF, f ≤ 1 kHz,
IK = 0.1 mA to 15 mA (see Figure 1)
0.25
0.4
Full temperature range is 40°C to 125°C.
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.
§ 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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相關代理商/技術參數 |
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|---|---|
| TLV431BQDBVT | 功能描述:基準電壓& 基準電流 Lo-Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構: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（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 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 |
| TLV431BQDBVTE4 | 功能描述:基準電壓& 基準電流 Lo-Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構: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（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 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 |
| TLV431BQDBVTG4 | 功能描述:基準電壓& 基準電流 Lo Vltg Adj Prec Shunt Reg RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構: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（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 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 |
| TLV431BQDBZR | 功能描述:基準電壓& 基準電流 Lo-Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構: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（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 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 |
| TLV431BQDBZRG4 | 功能描述:基準電壓& 基準電流 Lo-Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構: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（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 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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