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參數資料
| 型號： | CM3400 |
| 廠商： | California Micro Devices Corporation |
| 英文描述： | Micropower, Universal Supply Voltage Supervisor (SVS) |
| 中文描述： | 微功耗，通用電源電壓監控器（SVS）的 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 218K |
| 代理商： | CM3400 |
2003 California Micro Devices Corp. All rights reserved.
10/06/03
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
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Fax: 408.263.7846
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www.calmicro.com
1
CM3400
Micropower, Universal Supply Voltage Supervisor (SVS)
Features
Temperature stable 1.0V trigger reference
User adjustable reset threshold
User adjustable reset delay time > 25msec
Complimentary outputs (RESET, RESET)
Integrated pull-up/down resistors
Manual reset (MR) control input
Low operating current (40
μ
A typ.)
8-lead MSOP and SOIC package
Applications
Critical power monitoring
Power-up sequencing
Memory integrity during "brownouts"
Product Description
The CM3400 is a universal supply voltage supervisory
(SVS) controller for critical power monitoring and power
sequencing applications. During an initial power-up,
both complimentary outputs (RESET, RESET) remain
active. Once the supply voltage being monitored
exceeds the user programmed reset threshold, the out-
puts will remain active for an additional timeout interval
which is also user controlled. Both outputs become
inactive once the delay interval has expired.
The user controlled reset threshold is determined by
two external resistors as follows:
Reset Threshold [V] = (R
1
+ R
2
) / R
2
The delay time is set by an external capacitor C
T
, as
follows (where C
T
is in [nF]):
Reset Delay [ms] = (375 x C
T
[nF]) + 25 [ms]
During a brown-out condition, both outputs will immedi-
ately become active and remain active until the supply
being monitored has been restored for a period
exceeding the delay pulse. During a complete power-
down situation, both outputs will continually "hug" their
respective rails. This is achieved by the use of inte-
grated pull-up/down resistors.
The CM3400 is available in a low profile MSOP-8 and a
SOIC-8 package.
Simplified Electrical Schematic
Typical Application Circuit
SENSE
MR
RESET
GND
+
-
C
T
CT
R
1
GND
CM3400
RESET
V
DD
uP or
Memory
Control
R
2
SENSE
V
TH
+
GND
-
Falling Edge Delay
RESET
200K
t
DELAY
C
T
100K
RESET
MR
V
DD
EN
1
μ
A
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相關代理商/技術參數 |
參數描述 |
|---|---|
| CM3400-00MS | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:Micropower, Universal Supply Voltage Supervisor (SVS) |
| CM3400-00SN | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:Micropower, Universal Supply Voltage Supervisor (SVS) |
| CM34018 | 功能描述:工業移動感應器和位置傳感器 RESISTIVE & OPTICAL RoHS:否 制造商:Honeywell 輸出類型:Analog - Current 電壓額定值:12 VDC to 30 VDC 線性:+/- 0.0011 % 溫度范圍:- 40 C to + 85 C 總電阻: 容差: 類型:Rotary Sensor |
| CM3403 | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:Micropower Supply Voltage Supervisor (SVS) |
| CM3403-29SO | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:Micropower Supply Voltage Supervisor (SVS) |
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