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参数资料
型号： TLVH431AIDBVRE4
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, PDSO5
封装： GREEN, PLASTIC, SOT-23, 5 PIN
文件页数： 49/50页
文件大小： 990K
代理商： TLVH431AIDBVRE4
a
V
REF
ppm
oC
+
V
REF(dev)
V
REF (TA
+25
oC)
106
D
T
A
z
KA +
V
KA
I
K
z
KA +
V
I [
z
KA
1 )
R1
R2
DVREF
DVKA
TLVH431, TLVH431A, TLVH431B
TLVH432, TLVH432A, TLVH432B
SLVS555I – NOVEMBER 2004 – REVISED SEPTEMBER 2009....................................................................................................................................... www.ti.com
TLVH43x ELECTRICAL CHARACTERISTICS
at 25°C free-air temperature (unless otherwise noted)
TLVH431
TLVH432
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
TA = 25°C
1.222
1.24
1.258
TLVH431C
1.21
1.27
VKA = VREF,
VREF
Reference voltage
V
TA = full range,
IK = 10 mA
TLVH431I
1.202
1.278
See Figure 1 (1)
TLVH431Q
1.194
1.286
TLVH431C
4
12
VREF deviation over full
VREF(dev)
VKA = VREF, IK = 10 mA, See Figure 1
(1)
TLVH431I
6
20
mV
temperature range(2)
TLVH431Q
11
31
Ratio of VREF change to
IK = 10 mA, VK = VREF to 18 V, See Figure 2
–1.5
–2.7
mV/V
cathode voltage change
Iref
Reference terminal current
IK = 10 mA, R1 = 10 k, R2 = open, See Figure 2
0.1
0.5
μA
TLVH431C
0.05
0.3
Iref deviation over full
IK = 10 mA, R1 = 10 k, R2 = open,
Iref(dev)
TLVH431I
0.1
0.4
μA
temperature range(2)
See Figure 2 (1)
TLVH431Q
0.15
0.5
Minimum cathode current
IK(min)
VKA = VREF, See Figure 1
60
100
μA
for regulation
IK(off)
Off-state cathode current
VREF = 0, VKA = 18 V, See Figure 3
0.02
0.1
μA
VKA = VREF, f ≤ 1 kHz, IK = 0.1 mA to 70 mA,
|zKA|
Dynamic impedance(3)
0.25
0.4
See Figure 1
(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 2 ), the total dynamic impedance of the circuit is defined as:
8
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Copyright 2004–2009, Texas Instruments Incorporated
Product Folder Link(s): TLVH431 TLVH431A TLVH431B TLVH432 TLVH432A TLVH432B
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TLVH431AIDBVRG4 功能描述:基准电压& 基准电流 Lo Vltg Adj Prec Shunt Reg 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
TLVH431AIDBVT 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
TLVH431AIDBVTE4 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
TLVH431AIDBVTG4 功能描述:基准电压& 基准电流 Lo Vltg Adj Prec Shunt Reg 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
TLVH431AIDBZR 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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