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| 型号： | ADM13305-25ARZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISR DUAL 3.3/2.5V 8SOIC |
| 产品培训模块： | Voltage Supervisor 101 |
| 标准包装： | 98 |
| 类型： | 多压监控器 |
| 监视电压数目： | 2 |
| 输出： | 推挽式，图腾柱 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 2.25V，2.93V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 管件 |
Dual Processor
Supervisors with Watchdog
ADM13305
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
Dual supervisory circuits
Supply voltage range of 2.7 V to 5.5 V
Pretrimmed threshold options: 1.8 V, 2.5 V, 3.3 V, and 5 V
Adjustable 0.6 V voltage reference
Maximum supply current of 40 μA
V DD
MR
14k ?
ADM13305-18
ADM13305-25
ADM13305-33
RESET
140 ms (minimum) reset timeout
Watchdog timer with 1.6 sec (typical) timeout
SENSE1
R1
R2
RESET
LOGIC + TIMER
RESET valid from V DD ≥ 1.1 V
Push-pull RESET and RESET outputs
8-lead, narrow body SOIC package
Temperature range: ?40°C to +85°C
APPLICATIONS
SENSE2
GND
R3
R4
1.25V
OSCILLATOR
RESET
Supervising DSPs/microcontrollers
Industrial and portable equipment
WDI
TRANSITION
DETECTION
WATCHDOG
LOGIC + TIMER
Wireless systems
Notebook/desktop computers
GENERAL DESCRIPTION
Figure 1.
The ADM13305 is a dual voltage supervisor designed to
monitor two supplies and provide a reset signal to DSP and
microprocessor-based systems.
V DD
MR
14k ?
ADM13305-4
ADM13305-5
RESET
There are five models available, all of which feature a combination
of internally pretrimmed undervoltage threshold options for
SENSE1
R1
R2
RESET
LOGIC + TIMER
monitoring 1.8 V, 2.5 V, 3.3 V, and 5 V supplies. There is also
an adjustable input option with an undervoltage threshold voltage
of 0.6 V.
The ADM13305-18, ADM13305-25, and ADM13305-33 models
GND
SENSE2
RESET
have two internally fixed thresholds. The ADM13305-4 and
ADM13305-5 offer one internally fixed threshold and one
0.6V
OSCILLATOR
externally programmable threshold via a resistor string. See
the Ordering Guide for a list of all available options.
During power-up, RESET is asserted when the supply voltage
WDI
TRANSITION
DETECTION
WATCHDOG
LOGIC + TIMER
Figure 2. .
exceeds 1.1 V. The device then monitors the SENSEv input pins
and holds the RESET output low as long as either of the SENSEv
inputs remains below the rising threshold voltage, V IT+ .
Once the supplies monitored at the SENSEv inputs rise above
their associated thresholds, the reset signal remains low for
the reset timeout period before deasserting. Subsequently, if a
voltage monitored by the SENSEv pins falls below its associ-
ated falling threshold, V IT? , the RESET output asserts. The
ADM13305 features both an active high RESET and an active
low RESET output.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
As well as providing power-on reset signals, an on-chip watchdog
timer can reset the microprocessor if it fails to strobe within the
preset timeout period. A reset signal can also be asserted by an
external push button through the manual reset input pin.
The ADM13305 is available in an 8-lead, narrow body SOIC
package. The device operates over the extended industrial
temperature range of ?40°C to +85°C.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ?2007 Analog Devices, Inc. All rights reserved.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM13305-25ARZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual Processor Supervisors with Watchdog |
| ADM13305-25ARZ-RL7 | 功能描述:IC SUPERVISORY CIRCUIT DL 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:400 系列:- 类型:备用电池电路 监视电压数目:1 输出:开路漏极，推挽式 复位:高有效/低有效 复位超时:最小为 35 ms 电压 - 阀值:4.65V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:带卷 (TR) 其它名称:ADM691ARZ-REEL7TR |
| ADM13305-25ARZ-RL71 | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual Processor Supervisors with Watchdog |
| ADM13305-33ARZ | 功能描述:IC SUPERVISOR DUAL 5/3.3V 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:100 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，开路漏极 复位:高有效/低有效 复位超时:最小为 250 ms 电压 - 阀值:4.37V，4.62V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:管件 产品目录页面:1337 (CN2011-ZH PDF) |
| ADM13305-33ARZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual Processor Supervisors with Watchdog |
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