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参数资料
| 型号： | MAX16070ETL+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/52页 |
| 文件大小： | 0K |
| 描述： | IC SYSTEM MANAGER 12CH 40-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 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： | 管件 |
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12-Channel/8-Channel, Flash-Configurable System
Managers with Nonvolatile Fault Registers
When in the monitoring state, a register bit, ENRESET,
is set to a ‘1’ when EN falls below the undervoltage
threshold. This register bit latches and must be cleared
through software. This bit indicates if RESET asserted
low due to EN going under the threshold. The POR state
of ENRESET is ‘0’. The bit is only set on a falling edge
of the EN comparator output or the software enable bit.
Voltage/Current Monitoring
The MAX16070/MAX16071 feature an internal 10-bit
ADC that monitors the MON_ voltage inputs. An internal
multiplexer cycles through each of the enabled inputs,
taking less than 40 F s for a complete monitoring cycle.
Each acquisition takes approximately 3.2 F s. At each
multiplexer stop, the 10-bit ADC converts the analog
input to a digital result and stores the result in a register.
ADC conversion results are stored in registers r00h to
r1Ah (see Table 6). Use the SMBus or JTAG serial inter-
face to read ADC conversion results.
The MAX16070 provides twelve inputs, MON1 to MON12,
for voltage monitoring. The MAX16071 provides eight
inputs, MON1 to MON8, for voltage monitoring. Each
input voltage range is programmable in registers r43h to
r45h (see Table 5). When MON_ configuration registers
are set to ’11,’ MON_ voltages are not monitored, and
the multiplexer does not stop at these inputs, decreasing
the total cycle time. These inputs cannot be configured
to trigger fault conditions.
The three programmable thresholds for each monitored
voltage include an overvoltage, an undervoltage, and a
secondary warning threshold that can be set in r73h[3]
to be either an undervoltage or overvoltage threshold.
See the Faults section for more information on setting
overvoltage and undervoltage thresholds. All voltage
thresholds are 8 bits wide. The 8 MSBs of the 10-bit ADC
conversion result are compared to these overvoltage
and undervoltage thresholds.
Inputs that are not enabled are not converted by the
ADC; they contain the last value acquired before that
channel was disabled.
The ADC conversion result registers are reset to 00h at
boot-up. These registers are not reset when a reboot
command is executed.
Configure the MAX16070/MAX16071 for differential
mode in r46h (Table 5). The possible differential pairs
are MON1/MON2, MON3/MON4, MON5/MON6, MON7/
MON8, MON9/MON10, MON11/MON12 with the first
input always being at a higher voltage than the second.
Use differential voltage sensing to eliminate voltage off-
sets or measure supply current. See Figure 3. In differ-
ential mode, the odd-numbered MON_ input measures
the absolute voltage with respect to GND while the result
of the even input is the difference between the odd and
even inputs. See Figure 3 for the typical differential mea-
surement circuit.
POWER
R S
I LOAD
SUPPLY
V MON
MON ODD
MON EVEN
R SENSE
CSP
CSM
-
+
*A V
TO ADC MUX
MAX16070
MAX16071
LOAD
MAX16070
POWER
SUPPLY
MON ODD
LOAD
MON EVEN
OVERC
*ADJUSTABLE BY r47h [3:2]
-
+
+
-
*V CSTH
Figure 3. Differential Measurement Connections
Figure 4. Current-Sense Amplifier
12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16070ETL+ | 功能描述:电流和电力监控器、调节器 12Ch System Monitor w/NV Fault Registers RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| MAX16070ETL+T | 功能描述:电流和电力监控器、调节器 12Ch System Monitor w/NV Fault Registers RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| MAX16071ETL+ | 功能描述:电流和电力监控器、调节器 8Ch System Monitor w/NV Fault Registers RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| MAX16071ETL+T | 功能描述:电流和电力监控器、调节器 8Ch System Monitor w/NV Fault Registers RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| 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 |
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