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| 型号： | MAX16071ETL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 21/52页 |
| 文件大小： | 0K |
| 描述： | IC SYSTEM MANAGER 8CH 40-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 电源监控器 |
| 电源电压： | 2.8 V ~ 14 V |
| 电流 - 电源： | 4.5mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（6x6） |
| 包装： | 带卷 (TR) |
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12-Channel/8-Channel, Flash-Configurable System
Managers with Nonvolatile Fault Registers
Table 10. Fault1 and Fault2 Dependencies (continued)
REGISTER
ADDRESS
39h
3Ah
FLASH
ADDRESS
239h
23Ah
BIT
RANGE
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[0]
[1]
[7:2]
DESCRIPTION
1 = Fault2 depends on MON9
1 = Fault2 depends on MON10
1 = Fault2 depends on MON11
1 = Fault2 depends on MON12
1 = Fault2 depends on the overvoltage thresholds of the inputs selected by
r38h and r39h[3:0]
1 = Fault2 depends on the undervoltage thresholds of the inputs selected by
r38h and r39h[3:0]
1 = Fault2 depends on the early warning thresholds of the inputs selected by
r38h and r39h[3:0]
0 = Fault2 is an active-low digital output
1 = Fault2 is an active-high digital output
1 = Fault1 depends on secondary overcurrent comparator
1 = Fault2 depends on secondary overcurrent comparator
Reserved
ANY_FAULT
GPIO1, GPIO3, GPIO4, GPIO5, and GPIO7 are configu-
rable to assert low during any fault condition.
Overcurrent Comparator ( OVERC )
GPIO1 to GPIO8 are configurable to assert low when
the voltage across CSP and CSM exceed the primary
overcurrent threshold. See the Internal Current-Sense
Amplifier section for more details.
Manual Reset ( MR)
GPIO1, GPIO3, GPIO5, and GPIO7 are configurable to act
as an active-low manual reset input, MR . Drive MR low to
assert RESET. RESET remains asserted for the selected
reset timeout period after MR transitions from low to high.
Watchdog Input (WDI) and Output ( WDO )
GPIO2, GPIO4, GPIO6, and GPIO8 are configurable as
the watchdog timer output, WDO . GPIO1 is configurable
as WDI. See Table 17 for configuration details. WDO is an
active-low output. See the Watchdog Timer section for more
information about the operation of the watchdog timer.
External Fault ( EXTFAULT)
GPIO4 and GPIO8 are configurable as the external fault
input/output. When configured as push-pull, EXTFAULT
signals that a critical fault has occurred on one or more
monitored voltages or current. When configured as
open-drain, EXTFAULT can be asserted low by an exter-
nal circuit to trigger a critical fault. This signal can be
used to cascade multiple MAX16070/MAX16071s.
One configuration bit determines the behavior of the
MAX16070/MAX16071 when EXTFAULT is pulled low by
some other device. If register bit r6Dh[2] is set, EXTFAULT
going low triggers a nonvolatile fault log operation.
Faults
The MAX16070/MAX16071 monitor the input (MON_)
channels and compare the results with an overvoltage
threshold, an undervoltage threshold, and a selectable
overvoltage or undervoltage early warning threshold.
Based on these conditions, the MAX16070/MAX16071
assert various fault outputs and save specific informa-
tion about the channel conditions and voltages into the
nonvolatile flash. Once a critical fault event occurs, the
failing channel condition, ADC conversions at the time of
the fault, or both can be saved by configuring the event
logger. The event logger records a single failure in the
internal flash and sets a lock bit that protects the stored
fault data from accidental erasure on a subsequent
power-up.
An overvoltage event occurs when the voltage at a moni-
tored input exceeds the overvoltage threshold for that
input. An undervoltage event occurs when the voltage
at a monitored input falls below the undervoltage thresh-
old. Fault thresholds are set in registers r48h to r6Ch as
shown in Table 11. Disabled inputs are not monitored for
fault conditions and are skipped over by the input mul-
tiplexer. Only the upper 8 bits of a conversion result are
compared with the programmed fault thresholds.
______________________________________________________________________________________
21
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| MAX16072RS15D0+T | 功能描述:监控电路 uP Supervisor 1.58V Trip RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX16072RS15D1+T | 功能描述:监控电路 uP Supervisor 1.58V Trip RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX16072RS15D2+T | 功能描述:监控电路 uP Supervisor 1.58V Trip RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX16072RS15D3+T | 功能描述:监控电路 uP Supervisor 1.58V Trip RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX16072RS16D0+T | 功能描述:监控电路 uP Supervisor 1.63V Trip RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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