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| 型号： | ADM1062ACPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 20/36页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCER/SUPERVISOR 40LFCSP |
| 标准包装： | 1 |
| 系列： | Super Sequencer® |
| 类型： | 序列发生器 |
| 监视电压数目： | 10 |
| 输出： | 可编程 |
| 电压 - 阀值： | 可调节/可选择 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 40-LFCSP-VQ（6x6） |
| 包装： | 托盘 |
| 配用： | EVAL-ADM1062TQEBZ-ND - BOARD EVALUATION FOR ADM1062TQ |
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ADM1062
Monitoring Fault Detector
The monitoring fault detector block is used to detect a failure on an
input. The logical function implementing this is a wide OR gate
that can detect when an input deviates from its expected condition.
The clearest demonstration of the use of this block is in the
PWRGD state, where the monitor block indicates that a failure
on one or more of the VP1, VP2, or VP3 inputs has occurred.
No programmable delay is available in this block because the
triggering of a fault condition is likely to be caused by a supply
falling out of tolerance. In this situation, the device needs to
react as quickly as possible.
Some latency occurs when moving out of this state because it
takes a finite amount of time (~20 μs) for the state configuration
to download from the EEPROM into the SE. Figure 29 is a block
diagram of the monitoring fault detector.
MONITORING FAULT
DETECTOR
1-BIT FAULT
DETECTOR
Timeout Detector
The timeout detector allows the user to trap a failure to ensure
proper progress through a power-up or power-down sequence.
In the sample application shown in Figure 28, the timeout next-
state transition is from the EN3V3 and EN2V5 states. For the
EN3V3 state, the signal 3V3ON is asserted on the PDO1 output
pin upon entry to this state to turn on a 3.3 V supply. This supply
rail is connected to the VP2 pin, and the sequence detector looks
for the VP2 pin to go above its undervoltage threshold, which is
set in the supply fault detector (SFD) attached to that pin.
The power-up sequence progresses when this change is detected.
If, however, the supply fails (perhaps due to a short circuit over-
loading this supply), the timeout block traps the problem. In this
example, if the 3.3 V supply fails within 10 ms, the SE moves to
the DIS3V3 state and turns off this supply by bringing PDO1
low. It also indicates that a fault has occurred by taking PDO3
high. Timeout delays of 100 μs to 400 ms can be programmed.
FAULT AND STATUS REPORTING
VP1
SUPPLY FAULT
DETECTION
MASK
SENSE
FAULT
The ADM1062 has a fault latch for recording faults. Two registers,
FSTAT1 and FSTAT2, are set aside for this purpose. A single bit
is assigned to each input of the device, and a fault on that input
sets the relevant bit. The contents of the fault register can be
1-BIT FAULT
DETECTOR
read out over the SMBus to determine which input(s) faulted.
The fault register can be enabled or disabled in each state. To
VX5
LOGIC INPUT CHANGE
OR FAULT DETECTION
MASK
SENSE
FAULT
latch data from one state, ensure that the fault latch is disabled
in the following state. This ensures that only real faults are
captured and not, for example, undervoltage conditions that
may be present during a power-up or power-down sequence.
1-BIT FAULT
DETECTOR
The ADM1062 also has a number of status registers. These include
WARNINGS
FAULT
more detailed information, such as whether an undervoltage or
overvoltage fault is present on a particular input. The status regis-
MASK
Figure 29. Monitoring Fault Detector Block Diagram
ters also include information on ADC limit faults. Note that the
data in the status registers is not latched in any way and, therefore,
is subject to change at any time.
See the AN-698 Application Note at www.analog.com for full
details about the ADM1062 registers.
Rev. C | Page 20 of 36
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| ADM1062ACPZ-REEL7 | 功能描述:IC SEQUENCER/SUPERVISOR 40LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:Super Sequencer® 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:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP（0.059"，1.50mm 宽）5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT |
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| ADM1062ASUZ | 功能描述:IC SUPERVISOR/SEQUENCER 48-TQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:Super Sequencer® 其它有关文件:STM6717 View All Specifications 标准包装:1 系列:- 类型:多压监控器 监视电压数目:2 输出:开路漏极或开路集电极 复位:低有效 复位超时:最小为 600 ms 电压 - 阀值:1.11V，3.075V 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® 产品目录页面:1194 (CN2011-ZH PDF) 其它名称:497-7019-6 |
| ADM1062ASUZ-REEL7 | 功能描述:IC SEQUENCER/SUPERVISOR 48TQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:Super Sequencer® 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:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP（0.059"，1.50mm 宽）5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT |
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