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参数资料
型号： TLV431AIDBZR
厂商： TEXAS INSTRUMENTS INC
元件分类： 基准电压源/电流源
英文描述： 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.24 V, PDSO3
封装： GREEN, PLASTIC, SOT-23, 3 PIN
文件页数： 40/41页
文件大小： 1102K
代理商： TLV431AIDBZR
TLV431, TLV431A, TLV431B
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR
SLVS139T JULY 1996 REVISED JUNE 2007
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TLV431B electrical characteristics at 25
°C free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TLV431B
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TA = 25°C
1.234
1.24
1.246
V
Reference voltage
VKA = VREF,
TA = full range
TLV431BC
1.227
1.253
V
VREF
Reference voltage
VKA = VREF,
IK = 10 mA
TA = full range
(see Note 3 and
TLV431BI
1.224
1.259
V
(see Note 3 and
Figure 1)
TLV431BQ
1.221
1.265
V
d
i ti
f ll
V
I
10
A
TLV431BC
4
12
VREF(dev)
VREF deviation over full
temperature range (see Note 4)
VKA = VREF, IK = 10 mA
(see Note 3 and Figure 1)
TLV431BI
6
20
mV
VREF(dev)
temperature range (see Note 4)
(see Note 3 and Figure 1)
TLV431BQ
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)
0.1
0.5
A
I
d
i ti
f ll
I
10
A R1
10 k
R2
TLV431BC
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 3 and Figure 2)
TLV431BI
0.1
0.4
A
Iref(dev)
temperature range (see Note 4)
(see Note 3 and Figure 2)
TLV431BQ
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
(see Note 5)
VKA = VREF, f ≤ 1 kHz,
IK = 0.1 mA to 15 mA (see Figure 1)
0.25
0.4
NOTES:
3. Full temperature ranges are 40
°C to 125°C for TLV431BQ, 40°C to 85°C for TLV431BI, and 0°C to 70°C for TLV431BC.
4. 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.
5. 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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相关代理商/技术参数
参数描述
TLV431AIDBZR 制造商:Texas Instruments 功能描述:IC ADJ SHUNT REGULATOR
TLV431AIDBZR 制造商:Texas Instruments 功能描述:IC ADJ SHUNT REG 1.24V 1%
TLV431AIDBZRG4 功能描述:基准电压& 基准电流 Lo Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel
TLV431AIDBZR-P 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:
TLV431AIDE4 功能描述:基准电压& 基准电流 Lo Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel
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