參數(shù)資料
型號(hào)： TLVH431AIDCKRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.24 V, PDSO6
封裝： GREEN, PLASTIC, SC-70, 6 PIN
文件頁數(shù)： 49/50頁
文件大?。?/td> 990K
代理商： TLVH431AIDCKRG4
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
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
(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
Copyright 2004–2009, Texas Instruments Incorporated
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TLVH431AIDCKTG4 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Lo Vltg Adj Prec Shunt Reg RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)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
TLVH431AIL3T 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 1.24V to 18V Prog Shunt Ref 100uA 60mA RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)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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