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參數(shù)資料
| 型號： | LTC2901-1IGN |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Programmable Quad Supply Monitor with Adjustable Reset and Watchdog Timers |
| 中文描述： | 4-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SSOP-16 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 210K |
| 代理商： | LTC2901-1IGN |
1
LTC2901
2901is sn2901
Programmable Quad Supply
Monitor with Adjustable Reset
and Watchdog Timers
June 2002
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
I
Simultaneously Monitors Four Supplies
I
16 User Selectable Combinations of 5V, 3.3V, 3V,
2.5V, 1.8V, 1.5V and/or
±
Adjustable Voltage
Thresholds
I
Guaranteed Threshold Accuracy:
±
1.5% of
Monitored Voltage Over Temperature
I
Low Supply Current: 43
μ
A Typ
I
Adjustable Reset Time
I
Adjustable Watchdog Time
I
Open-Drain RST Output (LTC2901-1)
I
Push-Pull RST Output (LTC2901-2)
I
Individual Nondelayed Monitor Output for Each Supply
I
Power Supply Glitch Immunity
I
Guaranteed RST for V
CC
≥
1V
APPLICATIU
The LTC
2901 is a programmable supply monitor for
systems with up to four supply voltages. One of 16 preset
or adjustable voltage monitor combinations can be se-
lected using an external resistor divider connected to the
program pin. The preset voltage thresholds are accurate
to 1.5% over temperature. All four voltage comparator
outputs are connected to separate pins for individual
supply monitoring.
The reset and watchdog delay times are adjustable using
external capacitors. Tight voltage threshold accuracy and
glitch immunity ensure reliable reset operation without
false triggering. The RST output is guaranteed to be in the
correct state for V
CC
down to 1V. The LTC2901-1 features
an open-drain RST output, while the LTC2901-2 has a
push-pull RST output.
The 43
μ
A supply current makes the LTC2901 ideal for
power conscious systems and it may be configured to
monitor less than four inputs. The parts are available in
the 16-lead narrow SSOP package.
Quadruple Supply Monitor (5V, 3.3V, 2.5V, 1.8V)
I
Desktop and Notebook Computers
I
Multivoltage Systems
I
Telecom Equipment
I
Portable Battery-Powered Equipment
I
Network Servers
Final Electrical Specifications
FEATURES
DESCRIPTIOU
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
V1
V2
V
REF
V
PG
GND
COMP1
COMP2
COMP3
COMP4
WDI
WDO
RST
10
11
R1
59k
1%
R2
R3
10k
POWER
GOOD
40.2k
1%
12
6
7
8
15
1
16
2
13
3
14
4
9
5
C
47nF
C
47nF
C2
0.1
μ
F
C1
0.1
μ
F
V4
V3
LTC2901-2
CWT
CRT
t
RST
= 216ms
t
WD
= 940ms
2901 TA01
DC/DC
CONVERTER
1.8V
2.5V
3.3V
5V
SYSTEM
LOGIC
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| LTC2901-1IGN#PBF | 功能描述:IC MONITOR SUPPLY QUAD 16-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 其它有關(guān)文件:STM6905 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 類型:多壓監(jiān)控器 監(jiān)視電壓數(shù)目:5 輸出:開路漏極或開路集電極 復(fù)位:低有效 復(fù)位超時:最小為 140 ms 電壓 - 閥值:2.188V，2.955V，可調(diào)，可調(diào)，可調(diào) 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1197 (CN2011-ZH PDF) 其它名稱:497-8728-6 |
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| LTC2901-1IGN#TRPBF | 功能描述:IC MONITOR SUPPLY QUAD 16-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復(fù)位:高有效 復(fù)位超時:- 電壓 - 閥值:1.8V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:6-TSOP（0.059"，1.50mm 寬）5 引線 供應(yīng)商設(shè)備封裝:5-TSOP 包裝:剪切帶 (CT) 其它名稱:NCP301HSN18T1GOSCT |
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