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參數(shù)資料
| 型號(hào)： | LTC1728 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Micropower Precision Triple Supply Monitors in 5-Lead SOT-23 Packages(微功耗精密三路電源監(jiān)視器（5腳SOT-23封裝）) |
| 中文描述： | 微精密的三路電源監(jiān)視器在5引腳SOT - 23封裝（微功耗精密三路電源監(jiān)視器（5腳的SOT - 23封裝）） |
| 文件頁(yè)數(shù)： | 3/16頁(yè) |
| 文件大小： | 192K |
| 代理商： | LTC1728 |
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3
LTC1727/LTC1728
Note 5:
Measured from when input passes through the input threshold
(V
RTX
) until RST or COMPX passes through 1.5V.
Note 6:
The output pins RST and COMPX have internal pull-ups to V
CC3
of
typically 6
μ
A. However, external pull-up resistors may be used when faster
rise times are required or for V
OH
voltages greater than V
CC3
.
Note 7:
The V
CC5
reset override voltage is valid for an operating range less
than approximately 4.15V. Above this point the override is turned off and
the V
CC5
pin functions normally.
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2:
All voltage values are with respect to GND.
Note 3:
The LTC1727E/LTC1728E are guaranteed to meet specified
performance from 0
°
C to 70
°
C and are designed, characterized and
assured to meet the extended temperature limits of –40
°
C to 85
°
C
but are not tested at these temperatures.
Note 4:
Both V
CC3
and V
CC5
/V
CC25
/V
CC18
can act as the supply depending
on which pin has the greatest potential.
All except LTC1728-1.8. The
G
denotes specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25
°
C. V
CC3
= 3.3V, V
CC5
= 5V, V
CC25
= 2.5V, V
CCA
= V
CC3
unless
otherwise noted.
SYMBOL
t
UV
PARAMETER
V
CC
Undervoltage Detect to RST
or COMPX
Output Voltage Low, RST, COMPX
CONDITIONS
V
CC5
, V
CC25
, V
CC3
or V
CCA
Less Than Reset
Threshold V
RT
by More Than 1% (Note 5)
I
SINK
= 2.5mA, V
CC3
= 3V, V
CC5
/V
CC25
= 0V
I
SINK
= 100
μ
A, V
CC3
= 1V, V
CC5
/V
CC25
= 0V
I
SINK
= 100
μ
A, V
CC3
= 0V, V
CC5
/V
CC25
= 1V
I
SINK
= 100
μ
A, V
CC3
= 1V, V
CC5
/V
CC25
= 1V
I
SOURCE
= 1
μ
A
MIN
TYP
110
MAX
UNITS
μ
s
V
OL
G
G
G
G
0.15
0.05
0.05
0.05
0.4
0.3
0.3
0.3
V
V
V
V
V
V
OH
LTC1727-5/LTC1728-5 Only
V
OVR
V
CC5
Reset Override Voltage (Note 7)
Output Voltage High, RST, COMPX (Note 6)
G
V
CC3
– 1
Override V
CC5
Ability to Assert RST
V
CC3
±
0.025
V
ELECTRICAL CHARACTERISTICS
SYMBOL
V
RT3
V
RT18
V
RTA
V
CCOP
I
VCC3
PARAMETER
Reset Threshold V
CC3
Reset Threshold V
CC18
Reset Threshold V
CCA
V
CC3
, V
CC18
Operating Voltage
V
CC3
Supply Current
CONDITIONS
V
CC3
Input Threshold
V
CC18
Input Threshold
V
CCA
Input Threshold
RST in Correct Logic State
V
CC18
> V
CC3
V
CC18
< V
CC3
, V
CC3
= 3V (Note 4)
V
CC18
< V
CC3
, V
CC18
= 1.8V (Note 4)
V
CCA
= 1V
RST Low (Note 5)
V
CC18
, V
CC3
or V
CCA
Less Than Reset (Note 5)
Threshold V
RT
by More Than 1%
I
SINK
= 2.5mA, V
CC3
= 3V, V
CC18
= 0V
I
SINK
= 100
μ
A, V
CC3
= 1V, V
CC18
= 0V
I
SINK
= 100
μ
A, V
CC3
= 0V, V
CC18
= 1V
I
SINK
= 100
μ
A, V
CC3
= 1V, V
CC18
= 1V
I
SOURCE
= 1
μ
A (Note 6)
MIN
2.760
1.656
0.985
1
TYP
2.805
1.683
1.000
MAX
2.850
1.710
1.015
7
2
20
2
15
280
UNITS
G
V
V
V
V
G
G
G
G
G
1
μ
A
μ
A
μ
A
nA
ms
μ
s
10
1
0
200
110
I
VCC18
I
VCCA
t
RST
t
UV
V
CC18
Supply Current
V
CCA
Input Current
Reset Pulse Width
V
CC
Undervoltage Detect to RST
G
G
–15
140
G
V
OL
Output Voltage Low, RST
G
G
G
G
0.15
0.05
0.05
0.05
0.4
0.3
0.3
0.3
V
V
V
V
V
V
OH
Output Voltage High, RST
G
V
CC3
– 1
LTC1728-1.8 The
G
denotes specifications which apply over the full operating temperature range, otherwise specifications are at
T
A
= 25
°
C. V
CC3
= 3V, V
CC18
= 1.8V, V
CCA
= V
CC3
unless otherwise noted.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1728ES5-1.8#PBF | 制造商:Linear Technology 功能描述:Volt Supervisor Monitor 3V/1.8V 5-Pin TSOT-23 制造商:Linear Technology 功能描述:MONITOR TRIPLE 1.683V ACT L 制造商:Linear Technology 功能描述:MONITOR, TRIPLE, 1.683V, ACT LW, 5SOT23 |
| LTC1728ES5-1.8#TR | 功能描述:IC MON TRPL MCRPWR TSOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:400 系列:- 類型:備用電池電路 監(jiān)視電壓數(shù)目:1 輸出:開路漏極，推挽式 復(fù)位:高有效/低有效 復(fù)位超時(shí):最小為 35 ms 電壓 - 閥值:4.65V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:帶卷 (TR) 其它名稱:ADM691ARZ-REEL7TR |
| LTC1728ES5-1.8#TRM | 功能描述:IC MON TRI SUPPLY 1.8V TSOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:400 系列:- 類型:備用電池電路 監(jiān)視電壓數(shù)目:1 輸出:開路漏極，推挽式 復(fù)位:高有效/低有效 復(fù)位超時(shí):最小為 35 ms 電壓 - 閥值:4.65V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:帶卷 (TR) 其它名稱:ADM691ARZ-REEL7TR |
| LTC1728ES5-1.8#TRMPBF | 功能描述:IC MON TRI SUPPLY 1.8V TSOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:400 系列:- 類型:備用電池電路 監(jiān)視電壓數(shù)目:1 輸出:開路漏極，推挽式 復(fù)位:高有效/低有效 復(fù)位超時(shí):最小為 35 ms 電壓 - 閥值:4.65V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:帶卷 (TR) 其它名稱:ADM691ARZ-REEL7TR |
| LTC1728ES5-1.8#TRPBF | 功能描述:IC MON TRI SUPPLY 1.8V TSOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:400 系列:- 類型:備用電池電路 監(jiān)視電壓數(shù)目:1 輸出:開路漏極，推挽式 復(fù)位:高有效/低有效 復(fù)位超時(shí):最小為 35 ms 電壓 - 閥值:4.65V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:帶卷 (TR) 其它名稱:ADM691ARZ-REEL7TR |
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