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参数资料
| 型号： | MIC2774H-22YM5 TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR DUAL LV SOT23-5 |
| 标准包装： | 3,000 |
| 类型： | 多压监控器 |
| 监视电压数目： | 2 |
| 输出： | 补充型 |
| 复位： | 高有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 2.25V，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： | 带卷 (TR) |
| 其它名称： | MIC2774H-22YM5TR MIC2774H-22YM5TR-ND |
MIC2774
Dual Micro-Power Low Voltage Supervisor
General Description
The MIC2774 is a dual power supply supervisor that pro-
vides under-voltage monitoring, manual reset capability, and
power-on reset generation in a compact 5-pin SOT package.
Features include two under-voltage detectors, one ? xed and
one adjustable, and a choice of reset outputs. One under-
voltage detector compares V DD against a ? xed threshold. Ten
factory-programmed thresholds are available. The second,
user-adjustable input is compared against a 300mV reference.
This low reference voltage allows monitoring voltages lower
than those supported by previous supervisor ICs.
The reset outputs are asserted at power-on and any time
either voltage drops below the programmed threshold volt-
ages and remains asserted for 140ms (min.) after they
subsequently rise back above the threshold boundaries.
Manual reset functionality can be provided by a switch con-
nected between ground and the /MR input. A wide choice of
voltage thresholds provides for a variety of supply voltages
and tolerances. Hysteresis is included to prevent chattering
due to noise. Typical supply current is a low 3.5μA.
Ordering Information
Features
? Monitors two independent power supplies for under-volt-
age conditions
? One ? xed and one user adjustable input
? Choice of factory-programmed thresholds
? Adjustable input can monitor supplies as low as 0.3V
? Generates 140ms (minimum) power-on reset pulse
? Manual reset input
? Choice of active-high, active-low, or open-drain active-
low reset outputs
? Inputs may be pulled above V DD (7V abs. max.)
? Open-drain output can be pulled above V DD (7V abs
max.)
? /RST output valid down to 1.2V
? Ultra-low supply current, 3.5μA typical
? Rejects brief input transients
? IttyBitty? 5-lead SOT-23 package
? Pin compatible upgrade for MAX6306/09/12
Applications
? Monitoring processor ASIC, or FAGA core and I/O volt-
ages
? PDAs, hand-held PCs
? Embedded controllers
? Telecommunications systems
? Power supplies
? Wireless / Cellular systems
? Networking hardware
Part Number
Standard
MIC2774N-XXBM5
MIC2774H-XXBM5
MIC2774L-XXBM5
Marking
UGXX (1)
UHXX (1)
UIXX (1)
Pb-Free
MIC2774N-XXYM5
MIC2774H-XXYM5
MIC2774L-XXYM5
Marking
UGXX (1)
UHXX (1)
UIXX (1)
Reset Output
Open-Drain. Active-Low (/RST)
Active-High. Complementary (RST)
Active-Low. Complementary (/RST)
Temperature
Range
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Package
SOT-23-5
SOT-23-5
SOT-23-5
Notes:
1.
XX = Voltage options, see table on page 2. Underscore indicates a Pb-Free part.
Typical Application
V CORE 1.0V
MICROPROCESSOR
VCORE
V I/O 2.5V
R1
MIC2774L-23
VDD /RST
IN
VI/O
/RESET
GND
R2
POWER_G OOD
/MR
GND
MANUAL
RESET
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
October 2005
1
M9999-102605
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2774H-23BM5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC2774H-23BM5 TR | 功能描述:IC SUPERVISOR DUAL LV 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 |
| MIC2774H-23YM5 TR | 功能描述:监控电路 Dual Voltage Supervisor with 0.3V and 2.34V Thresholds, Active-High Push-Pull Output, 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 |
| MIC2774H-25BM5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC2774H-25BM5 TR | 功能描述:IC SUPERVISOR DUAL LV 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 |
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