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参数资料
| 型号： | MIC2777-31YM5 TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR DUAL MCPWR SOT23-5 |
| 标准包装： | 1 |
| 类型： | 多压监控器 |
| 监视电压数目： | 2 |
| 输出： | 补充型 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 3.09V，可调 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 标准包装 |
| 产品目录页面： | 1112 (CN2011-ZH PDF) |
| 其它名称： | 576-2688-6 |
MIC2777
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 ?xed and one
adjustable, and both active-high and active-low reset outputs.
One under-voltage detector compares V DD against a ?xed
threshold. Ten factory-programmed thresholds are available.
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 sub-
sequently 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 3.5μA.
Micrel, Inc.
MIC2777
Dual Micro-Power Low Voltage Supervisor
Features
? Monitors two independent power supplies for under-volt-
age conditions
? One ?xed 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, 3.5μA typical
? Rejects brief input transients
? IttyBitty? 5-pin SOT-23 package
Applications
? Monitoring processor, ASIC, or FPGA core and I/O volt-
ages
? Computer systems
? PDAs, hand-held PCs
? Embedded controllers
? Telecommunications systems
? Power supplies
? Wireless / Cellular systems
? Networking hardware
Ordering Information
Standard
Part Number
Marking Pb-Free
Marking
Junction Tem. Range
Package
MIC2777-XXBM5 UNXX
MIC2777-XXYM5
UNXX
–40oC to +85oC
SOT-23-5
Typical Application
V CORE 1.0V
MICROPROCESSOR
V CORE
V I/O 1.8V
R1
MIC2777
VDD /RST
V I/O
/RESET
GND
R2
IN
RST
GND
Manual
Reset
OTHER
LOGIC
Typical Application
IttyBitty? is a trademark of Micrel, Inc.
Micrel, Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel + 1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
November 2005
1
MIC2777
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2777-44BM5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC2777-44BM5 TR | 功能描述:IC SUPERVISOR DUAL MCPWR SOT23-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:1 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:低有效 复位超时:标准传输延迟为 60 µs 电压 - 阀值:3V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:Digi-Reel® 其它名称:LM8364BALMF30DKR |
| MIC2777-44BM5TR | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| MIC2777-44YM5 TR | 功能描述:监控电路 Dual Voltage Supervisor with 0.3V and 4.43V Thresholds, Active-High and Active-Low Push-Pull Outputs, 140ms Reset Pulse, Manual Reset, SOT23-5 (Lead Free) RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MIC2777-46BM5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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