参数资料
型号: ADM12914-2ARQZ
厂商: Analog Devices Inc
文件页数: 1/16页
文件大小: 0K
描述: IC MONITOR QUAD UV/OV 16QSOP
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: 4
输出: 开路漏极或开路集电极
复位: 低有效
复位超时: 可调节/可选择
电压 - 阀值: 可调节/可选择
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
供应商设备封装: 16-QSOP
包装: 管件

±0.8% Accurate Quad UV/OV
Positive/Negative Voltage Supervisor
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Quad undervoltage/overvoltage (UV/OV) positive/negative
supervisor
Supervises up to two negative rails
Adjustable UV and OV input thresholds
Industry leading threshold accuracy over the extended
temperature range: ±0.8%
1 V buffered reference output
Open-drain UV and OV reset outputs
Adjustable reset timeout with disable option
VH1
VL1
VH2
ADM12914
500mV
500mV
V CC
TIMER
TIMER
UV
Outputs guaranteed down to V CC of 0.9 V
Glitch immunity
62 μA supply current
16-lead QSOP package
Specified from ?40°C to +125°C
APPLICATIONS
Server supply monitoring
VL2
VH3
VL3
VH4
500mV
MUX
OUTPUT
LOGIC
OV
FPGA/DSP core and I/O voltage monitoring
Telecommunications equipment
Medical equipment
VL4
500mV
SEL
GND
LOGIC
REF
LATCH/DIS
REF
Figure 1.
GENERAL DESCRIPTION
The ADM12914 is a quad voltage supervisory IC ideally suited
for monitoring multiple rails in a wide range of applications.
Each monitored rail has two dedicated input pins, VHx and VLx,
which allows each rail to be monitored for both undervoltage
(UV) and overvoltage (OV) conditions with high threshold
accuracy of ±0.8%. Common active low undervoltage (UV) and
overvoltage (OV) pins are shared by each of the monitored
voltage rails.
The ADM12914 includes a 1 V buffered reference output, REF,
that acts as an offset when monitoring a negative voltage. The
three-state SEL pin determines the polarity of the third and
fourth inputs, that is, it configures the device to monitor
positive or negative supplies.
The device incorporates an internal shunt regulator that enables
the device to be used in higher voltage systems. This feature
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.
requires a resistor to be placed between the main supply rail and
the V CC pin to limit the current flow into the V CC pin at a level
no greater than 10 mA. The ADM12914 uses the internal shunt
regulator to regulate V CC if the supply line exceeds the absolute
maximum ratings.
The ADM12914 is available in two models. The ADM12914-1
offers a latching overvoltage output that can be cleared by
toggling the LATCH input pin. The ADM12914-2 has a disable
pin that can override and disable both the UV and the OV
output signals.
The ADM12914 is available in a 16-lead QSOP package. The
device is specified over the extended temperature range of
?40°C to +125°C.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ?2009–2013 Analog Devices, Inc. All rights reserved.
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ADM12914-2ARQZ-RL7 制造商:Analog Devices 功能描述:
ADM1293-1AACPZ 功能描述:IC MONITOR QUAD UV/OV 16LFCSP 制造商:analog devices inc. 系列:- 包装:托盘 零件状态:有效 输入阻抗:- 测量误差:- 电压 - I/O 高:1.1V 电压 - I/O 低:0.4V,0.8V,1.5V 电流 - 电源:3.6mA 电压 - 电源:2.95 V ~ 20 V 表计类型:单相 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:16-WQFN 裸露焊盘 供应商器件封装:16-LFCSP-WQ(4x4) 标准包装:1
ADM1293-1AACPZ-RL7 功能描述:IC MONITOR QUAD UV/OV 16LFCSP 制造商:analog devices inc. 系列:- 包装:带卷(TR) 零件状态:有效 输入阻抗:- 测量误差:- 电压 - I/O 高:1.1V 电压 - I/O 低:0.4V,0.8V,1.5V 电流 - 电源:3.6mA 电压 - 电源:2.95 V ~ 20 V 表计类型:单相 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:16-WQFN 裸露焊盘 供应商器件封装:16-LFCSP-WQ(4x4) 标准包装:1,500
ADM1293-1AARUZ 功能描述:IC MONITOR QUAD UV/OV 14TSSOP 制造商:analog devices inc. 系列:- 包装:管件 零件状态:有效 输入阻抗:- 测量误差:- 电压 - I/O 高:1.1V 电压 - I/O 低:0.4V,0.8V,1.5V 电流 - 电源:3.6mA 电压 - 电源:2.95 V ~ 20 V 表计类型:单相 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:14-TSSOP(0.173",4.40mm 宽) 供应商器件封装:14-TSSOP 标准包装:96
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