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參數資料
| 型號： | MIC2776 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Micro-Power Low Voltage Supervisor |
| 中文描述： | 微功率低電壓監(jiān)控器 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 378K |
| 代理商： | MIC2776 |
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
相關PDF資料 |
PDF描述 |
|---|---|
| MIC2776N-BM5 | Micro-Power Low Voltage Supervisor |
| MIC2804BWM | High-Voltage High-Current Darlington Array |
| MIC2803BWM | High-Voltage High-Current Darlington Array |
| MIC2803BN | High-Voltage High-Current Darlington Array |
| MIC2803 | High-Voltage High-Current Darlington Array |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC2776H-BM5 TR | 功能描述:IC SUPERVISOR MICROPOWER 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 |
| MIC2776H-YM5 TR | 功能描述:監(jiān)控電路 Adjustable Voltage Supervisor with 0.3V Threshold, Manual Reset and Active-High Push-Pull Output in SOT23-5 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數: 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 |
| MIC2776H-YM5TR | 制造商:Micrel Inc 功能描述: |
| MIC2776H-YM5-TR | 功能描述:Supervisor Complementary 1 Channel SOT-23-5 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):停產 類型:簡單復位/加電復位 受監(jiān)控電壓數:1 輸出:補充型 復位:高有效 復位超時:最小為 140 ms 電壓 - 閾值:可調節(jié)/可選擇 工作溫度:-40°C ~ 85°C（TA） 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商器件封裝:SOT-23-5 標準包裝:1 |
| MIC2776L-BM5 TR | 功能描述:IC SUPERVISOR MICROPOWER 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 |
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