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參數(shù)資料
| 型號： | LT1460HCS3-10 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Family of Micropower Series References in SOT-23 |
| 中文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 10 V, PDSO3 |
| 封裝： | PLASTIC, TO-236AB, SOT-23, 3 PIN |
| 文件頁數(shù)： | 9/12頁 |
| 文件大小： | 197K |
| 代理商： | LT1460HCS3-10 |
9
LT1460S3 (SOT-23)
APPLICATIO
S I
N
FOR
ATIO
U
Hysteresis
Hysteresis data shown in Figure 5 and Figure 6 represents
the worst-case data taken on parts from 0
°
C to 70
°
C and
from –40
°
C to 85
°
C. The output is capable of dissipating
relatively high power, i.e., for the LT1460S3-2.5, P
D
=
17.5V 20mA = 350mW. The thermal resistance of the
SOT-23 package is 325
°
C/W and this dissipation causes
a 114
°
C internal rise producing a junction temperature of
T
J
= 25
°
C + 114
°
C = 139
°
C. This elevated temperature will
cause the output to shift due to thermal hysteresis.
For
highest performance in precision applications, do not
let the LT1460S3’s junction temperature exceed 85
°
C.
W
U
Fast Turn-On
It is recommended to add a 0.1
μ
F or larger bypass
capacitor to the input pin of the LT1460S3s. Although this
can help stability with large load currents, another reason
is for proper start-up. The LT1460S3 can start in 10
μ
s, but
it is important to limit the dv/dt of the input. Under light
load conditions and with a very fast input, internal nodes
overslew and this requires finite recovery time. Figure 8
shows the result of no bypass capacitance on the input and
no output load on the LT1460S3-5. In this case the supply
dv/dt is 7.5V in 30ns which causes internal overslew, and
the output does not bias to 5V until 40
μ
s after turn-on.
Although 40
μ
s is a typical turn-on time, it can be much
longer. Figure 9 shows the effect of a 0.1
μ
F bypass
capacitor which limits the input dv/dt to approximately
7.5V in 20
μ
s. The part always starts quickly.
Figure 6. 0
°
C to 70
°
C Hysteresis
Figure 7. –40
°
C to 85
°
C Hysteresis
V
IN
20
μ
s/DIV
Figure 8. C
IN
= 0
μ
F
0V
V
OUT
0V
7.5V
1460S3 F08
V
IN
20
μ
s/DIV
Figure 9. C
IN
= 0.1
μ
F
V
OUT
0V
7.5V
1460S3 F08
HYSTERESIS (ppm)
–240
–160
–80
0
N
8
70
°
C TO 25
°
C
0
°
C TO 25
°
C
10
12
1460S3 F06
6
4
80
160
–200
–120
–40
40
120
200
2
0
18
16
14
240
WORST-CASE HYSTERESIS
ON 40 UNITS
HYSTERESIS (ppm)
–600
–400
–200
0
N
4
85
°
C TO 25
°
C
–40
°
C TO 25
°
C
5
6
1460S3 F07
3
2
200
400
–500
–300
–100
100
300
500
1
0
9
8
7
600
WORST-CASE HYSTERESIS
ON 34 UNITS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1460JCS3-10 | Family of Micropower Series References in SOT-23 |
| LT1460KCS3-10 | Family of Micropower Series References in SOT-23 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1460HCS3-10#PBF | 制造商:Linear Technology 功能描述:V-Ref Precision 10V 40mA 3-Pin SOT-23 |
| LT1460HCS3-10#TR | 功能描述:IC VREF SERIES PREC 10V SOT-23-3 RoHS:否 類別:集成電路 (IC) >> PMIC - 電壓基準(zhǔn) 系列:- 產(chǎn)品培訓(xùn)模塊:Voltage Reference Basics 標(biāo)準(zhǔn)包裝:100 系列:- 基準(zhǔn)類型:旁路，精度 輸出電壓:4.096V 容差:±0.075% 溫度系數(shù):50ppm/°C 輸入電壓:- 通道數(shù):1 電流 - 陰極:1µA 電流 - 靜態(tài):- 電流 - 輸出:10mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOIC 包裝:管件 |
| LT1460HCS3-10#TRM | 功能描述:IC VREF SERIES PREC 10V SOT-23-3 RoHS:否 類別:集成電路 (IC) >> PMIC - 電壓基準(zhǔn) 系列:- 產(chǎn)品培訓(xùn)模塊:Voltage Reference Basics 標(biāo)準(zhǔn)包裝:100 系列:- 基準(zhǔn)類型:旁路，精度 輸出電壓:4.096V 容差:±0.075% 溫度系數(shù):50ppm/°C 輸入電壓:- 通道數(shù):1 電流 - 陰極:1µA 電流 - 靜態(tài):- 電流 - 輸出:10mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOIC 包裝:管件 |
| LT1460HCS3-10#TRMPBF | 功能描述:IC VREF SERIES PREC 10V SOT-23-3 RoHS:是 類別:集成電路 (IC) >> PMIC - 電壓基準(zhǔn) 系列:- 產(chǎn)品培訓(xùn)模塊:Voltage Reference Basics 標(biāo)準(zhǔn)包裝:100 系列:- 基準(zhǔn)類型:旁路，精度 輸出電壓:4.096V 容差:±0.075% 溫度系數(shù):50ppm/°C 輸入電壓:- 通道數(shù):1 電流 - 陰極:1µA 電流 - 靜態(tài):- 電流 - 輸出:10mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOIC 包裝:管件 |
| LT1460HCS3-10#TRPBF | 功能描述:IC VREF SERIES PREC 10V SOT-23-3 RoHS:是 類別:集成電路 (IC) >> PMIC - 電壓基準(zhǔn) 系列:- 產(chǎn)品培訓(xùn)模塊:Voltage Reference Basics 標(biāo)準(zhǔn)包裝:100 系列:- 基準(zhǔn)類型:旁路，精度 輸出電壓:4.096V 容差:±0.075% 溫度系數(shù):50ppm/°C 輸入電壓:- 通道數(shù):1 電流 - 陰極:1µA 電流 - 靜態(tài):- 電流 - 輸出:10mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOIC 包裝:管件 |
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