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參數(shù)資料
| 型號： | LTC2905ITS8#TRMP |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | PLASTIC, MO-193, TSOT-23, 8 PIN |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 152K |
| 代理商： | LTC2905ITS8#TRMP |
LTC2904/LTC2905
1
29045fb
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
■ Monitors Two Inputs Simultaneously
■
Nine Threshold Combinations
■ Three Supply Tolerances (5%, 7.5%, 10%)
■ Guaranteed Threshold Accuracy: ±1.5% of
Monitored Voltage Over Temperature
■ Internal VCC Auto Select
■ Power Supply Glitch Immunity
■
200ms Reset Time Delay (LTC2904 Only)
■ Adjustable Reset Time Delay (LTC2905 Only)
■ Open Drain RST Output
■
Guaranteed RST for V1 ≥ 1V or V2 ≥ 1V
■ Low Profile (1mm) SOT-23 (ThinSOT
TM) and Plastic
(3mm x 2mm) DFN Packages
■ Desktop and Notebook Computers
■
Handheld Devices
■ Network Servers
■ Core, I/O Monitor
Precision Dual Supply Monitors
with Pin-Selectable Thresholds
The LTC
2904/LTC2905 are dual supply monitors in-
tended for systems with two supply voltages. The dual
supply monitors have a common reset output with delay
(200ms for the LTC2904 and adjustable using an external
capacitor for the LTC2905). This product provides a
precise, space-conscious and micropower solution for
supply monitoring.
The LTC2904/LTC2905 feature a tight 1.5% threshold
accuracy over the whole operating temperature range,
and glitch immunity to ensure reliable reset operation
without false triggering. The open drain RST output is
guaranteed to be in the correct state for inputs down to 1V.
The LTC2904/LTC2905 also feature three programming
input pins, which program the threshold and tolerance
level without requiring any external components. These
three programming pins provide a total of 27 different
voltage level and tolerance combinations, eliminating
the need to have different parts for development and
implementation of different systems with different voltage
levels requiring monitoring function.
V1
S1
S2
TOL
V2
TMR
GND
RST
LTC2905
22nF
0.1μF
DC/DC
CONVERTER
SYSTEM
LOGIC
29045 TA01
3.3V
5V
5V, 3.3V Dual Supply Monitor with 5% Tolerance
Table 1. Voltage Threshold Programming
V1
V2
S1
S2
5.0
3.3
V1
3.3
2.5
Open
GND
3.3
1.8
V1
Open
3.3
1.5
Open
V1
3.3
1.2
Open
2.5
1.8
GND
2.5
1.5
GND
Open
2.5
1.2
GND
V1
2.5
1.0
V1
GND
APPLICATIO S
U
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of
their respective owners.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
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|---|---|
| LTC2905ITS8TRMPBF | 制造商:Linear Technology 功能描述:Volt Supervisor Monitor 3.3V/5V TSOT23-8 |
| LTC2906CDDB#PBF | 制造商:Linear Technology 功能描述:Volt Supervisor Monitor 2.5V/3.3V/5V 8-Pin DFN EP |
| LTC2906CDDB#TR | 功能描述:IC MONITOR DUAL SUPPLY PREC 8DFN 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: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 |
| LTC2906CDDB#TRM | 功能描述:IC MONITOR DUAL SUPPLY PREC 8DFN 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: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 |
| LTC2906CDDB#TRMPBF | 功能描述:IC MONITOR DUAL SUPPLY PREC 8DFN 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: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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