- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384735 > MIC2777 (Micrel Semiconductor,Inc.) Dual Micro-Power Low Voltage Supervisor Advance Information PDF資料下載
參數(shù)資料
| 型號： | MIC2777 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Dual Micro-Power Low Voltage Supervisor Advance Information |
| 中文描述： | 雙路微功率低電壓監(jiān)控進展信息 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 375K |
| 代理商： | MIC2777 |
September 29, 2000
1
MIC2777
MIC2777
Micrel
MIC2777
Dual Micro-Power Low Voltage Supervisor
Advance Information
General Description
The MIC2777 is a dual power supply supervisor that provides
under-voltage monitoring, manual reset capability, and power-
on reset generation in a compact 5-pin SOT package. Fea-
tures include two under-voltage detectors, one fixed and one
adjustable, and both active-high and active-low reset out-
puts. One under-voltage detector compares V
DD
against a
fixed threshold. Ten factory-programmed thresholds are avail-
able. The other under-voltage detector is user-adjustable.
The reset outputs are asserted for no less than 140ms at
power-on and any time V
DD
or the input voltage drops below
the corresponding reference voltage. They remain asserted
for the timeout period after the input voltage and V
DD
subse-
quently rise back above the threshold boundaries. A reset
can be generated at any time by pulling down on the adjust-
able input. Hysteresis is included to prevent chattering due to
noise. Typical supply current is a low 3.5
μ
A.
Typical Application
IN
R1
R2
/RST
VDD
RST
OTHER
LOGIC
MIC2777
MICROPROCESSOR
V
CORE
V
I/O
Manual
Reset
/RESET
V
CORE
1.0V
V
I/O
1.8V
GND
GND
Typical Application
Features
Monitors two independent power supplies for under-
voltage conditions
One fixed and one user adjustable input
1.5% theshold accuracy
Choice of factory-programmed thresholds
User-adjustable input can monitor supplies as low as
0.3V
Generates 140ms (minimum) power-on RESET pulse
Manual reset capability
Both active-high and active-low RESET outputs
Input may be pulled above V
DD
(abs. max.)
/RST output valid down to 1.2V
Ultra-low supply current, 3.5
μ
A typical
Rejects brief input transients
IttyBitty 5-lead SOT-23 package
Applications
Monitoring processor, ASIC, or FPGA core and I/O
voltages
Computer systems
PDAs, hand-held PCs
Embedded controllers
Telecommunications systems
Power supplies
Wireless / Cellular systems
Networking hardware
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
IttyBitty is a trademark of Micrel, Inc.
Ordering Information
Part Number
MIC2777-XXBM5
Marking
UNXX
Junction Temp. Range
–40
°
C to +85
°
C
Package
SOT-23-5
相關PDF資料 |
PDF描述 |
|---|---|
| MIC2779H-1BM5 | 3455RMG Series Phenolic Manual Reset Thermostats |
| MIC2779H-2BM5 | 3455RMG Series Phenolic Manual Reset Thermostats |
| MIC2779L-1BM5 | IC LOGIC 16244 16-BIT FET BUS SWITCH -40+85C SSOP-48 30/TUBE |
| MIC2779L-2BM5 | Voltage Monitor with Adjustable Hysteresis Preliminary Information |
| MIC2779 | Voltage Monitor with Adjustable Hysteresis Preliminary Information |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2777-17BM5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC2777-17BM5 TR | 功能描述:IC SUPERVISOR DUAL MCPWR SOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標準包裝:1 系列:- 類型:簡單復位/加電復位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復位:低有效 復位超時:標準傳輸延遲為 60 µs 電壓 - 閥值:3V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱:LM8364BALMF30DKR |
| MIC2777-17YM5 TR | 功能描述:監(jiān)控電路 Dual Voltage Supervisor with 0.3V and 1.69V Thresholds, Active-High and Active-Low Push-Pull Outputs, 140ms Reset Pulse, Manual Reset, SOT23-5 (Lead Free) RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MIC2777-22BM5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC2777-22BM5 TR | 功能描述:IC SUPERVISOR DUAL MCPWR SOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標準包裝:1 系列:- 類型:簡單復位/加電復位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復位:低有效 復位超時:標準傳輸延遲為 60 µs 電壓 - 閥值:3V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱:LM8364BALMF30DKR |
發(fā)布緊急采購，3分鐘左右您將得到回復。