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參數(shù)資料
| 型號(hào)： | LT6660HCDC-10#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 10 V, PSSO3 |
| 封裝： | 2 X 2 MM, 0.75 MM, LEAD FREE, PLASTIC, MO-229W-TBD, DFN-3 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 400K |
| 代理商： | LT6660HCDC-10#PBF |
LT6660
8
6660fa
APPLICATIO S I FOR ATIO
W
U
Longer Battery Life
Series references have a large advantage over older shunt
style references. Shunt references require a resistor
from the power supply to operate. This resistor must be
chosen to supply the maximum current that can ever be
demanded by the circuit being regulated. When the circuit
being controlled is not operating at this maximum current,
theshuntreferencemustalwayssinkthiscurrent,resulting
in high dissipation and short battery life.
The LT6660 series references do not require a current
setting resistor and can operate with any supply voltage
from VOUT + 0.9V to 20V. When the circuitry being regu-
lated does not demand current, the LT6660s reduce their
dissipation and battery life is extended. If the references
are not delivering load current, they dissipate only several
mW, yet the same connection can deliver 20mA of load
current when demanded.
Capacitive Loads
The LT6660 family of references are designed to be stable
with a large range of capacitive loads. With no capacitive
load, these references are ideal for fast settling or applica-
tions where PC board space is a premium. The test circuit
shown in Figure 1 is used to measure the response time
and stability of various load currents and load capacitors.
This circuit is set for the 2.5V option. For other voltage
options, the input voltage must be scaled up and the
output voltage generator offset voltage must be adjusted.
The 1V step from 2.5V to 1.5V produces a current step of
10mA or 1mA for RL = 100Ω or RL = 1k. Figure 2 shows
the response of the reference to these 1mA and 10mA
load steps with no load capacitance, and Figure 3 shows
a 1mA and 10mA load step with a 0.1F output capaci-
tor. Figure 4 shows the response to a 1mA load step with
CL = 1F and 4.7F.
Figure 2. CL = 0F
Figure 3. CL = 0.1F
Figure 4. IOUT = 1mA
1
s/DIV
VGEN
VOUT
2.5V
1.5V
1mA
10mA
6660 F02
100
s/DIV
VGEN
VOUT
2.5V
1.5V
1mA
10mA
6660 F03
100
s/DIV
VGEN
VOUT
2.5V
1.5V
1
F
4.7
F
6660 F04
Figure 1. Response Time Test Circuit
LT6660-2.5
RL
VOUT
VGEN
6660 F01
CIN
0.1
F
2.5V
1.5V
CL
VIN = 2.5V
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PDF描述 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT6660HCDC-2.5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Tiny Micropower Precision Series References in 2mm × 2mm DFN |
| LT6660HCDC-2.5#PBF | 制造商:Linear Technology 功能描述:IC SM VOLT REF 2.5V 制造商:Linear Technology 功能描述:IC, SM, VOLT REF, 2.5V |
| LT6660HCDC-2.5#TR | 制造商:Linear Technology 功能描述:SC-Refs/Series, 2.5V Low Cost uP Prec Series Ref. |
| LT6660HCDC-2.5#TRMPBF | 功能描述:IC VREF SERIES PREC 2.5V 3-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電壓基準(zhǔn) 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 基準(zhǔn)類型:旁路，精度 輸出電壓:3V 容差:±0.5% 溫度系數(shù):100ppm/°C 輸入電壓:- 通道數(shù):1 電流 - 陰極:82µA 電流 - 靜態(tài):- 電流 - 輸出:15mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-TSSOP（5 引線），SC-88A，SOT-353 供應(yīng)商設(shè)備封裝:SC-70-5 包裝:帶卷 (TR) 其它名稱:296-20888-2 |
| LT6660HCDC-2.5#TRPBF | 功能描述:IC VREF SERIES PREC 2.5V 3-DFN 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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