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参数资料
| 型号： | MIC2776N-BM5 |
| 厂商： | MICREL INC |
| 元件分类： | 电源管理 |
| 英文描述： | Micro-Power Low Voltage Supervisor |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封装： | SOT-23, 5 PIN |
| 文件页数： | 1/8页 |
| 文件大小： | 378K |
| 代理商： | MIC2776N-BM5 |
September 29, 2000
1
MIC2776
MIC2776
Micrel
MIC2776
Micro-Power Low Voltage Supervisor
Advance Information
General Description
The MIC2776 is a power supply supervisor which provides
under-voltage monitoring and power-on reset generation in a
compact 5-pin SOT package. Features include an adjustable
under-voltage detector, a delay-generator, a manual reset
input, and a choice of active-high, active-low, or open-drain
active-low reset output. The user-adjustable monitoring input
is compared against a 300mV reference. This low reference
voltage allows monitoring voltages lower than those sup-
ported by previous supervisor ICs.
The reset output is asserted for no less than 140ms at power-
on and any time the input voltage drops below the reference
voltage. It remains asserted for the timeout period after the
input voltage subsequently rises back above the threshold
boundary. A reset can be generated at any time by asserting
the manual reset input, /MR. The reset output will remain
active at least 140ms after the release of /MR. The /MR input
can also be used to daisy-chain the MIC2776 onto existing
power monitoring circuitry or other supervisors. Hysteresis is
included to prevent chattering due to noise. Typical supply
current is a low 3.0
μ
A.
Typical Application
IN
/RST
VDD
/MR
GND
MIC2776L
R1
R2
/RESET
VCORE
VI/O
GND
Power_Good
V
CORE
1.0V
Manual
Reset
MICROPROCESSOR
V
I/O
2.5V
Features
User-adjustable input can monitor supplies as low as
0.3V
±
1.5% threshold accuracy
Separate V
DD
input
Generates power-on reset pulse (140ms min.)
Manual reset input
Choice of active-high, active-low or open-drain active-
low reset output
Inputs can be pulled above V
DD
(7V abs. max.)
Open-drain output can be pulled above V
DD
(7V abs.
max.)
Ultra-low supply current, 3.0
μ
A typical
Rejects brief input transients
IttyBitty SOT-23-5 package
Applications
Monitoring processor, ASIC, or FPGA core voltage
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
MIC2776N-BM5
MIC2776H-BM5
MIC2776L-BM5
Marking
UKAA
ULAA
UMAA
Reset Output
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
Open-Drain, Active-Low /RST
Active-High, Complementary RST
Active-Low, Complementary /RST
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2776N-BM5 TR | 功能描述:IC SUPERVISOR ADJ MCRPWR 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 |
| MIC2776N-BM5 TX | 制造商:Micrel 功能描述:The Micrel MIC2776N-BM5 TX is a Supervisor IC. |
| MIC2776N-BM5TR | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| MIC2776N-BM5TX | 制造商:RF Micro Devices Inc 功能描述: |
| MIC2776NYM5 | 制造商:Micrel Inc 功能描述: |
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