参数资料
型号: MAX6876ETX+
厂商: Maxim Integrated Products
文件页数: 26/39页
文件大小: 0K
描述: IC TRACKER/SUPERVISOR MON 36TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
类型: 序列发生器
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 ~ 85°C
安装类型: 表面贴装
封装/外壳: 36-WFQFN 裸露焊盘
供应商设备封装: 36-TQFN 裸露焊盘(6x6)
包装: 管件
EEPROM-Programmable, Quad,
Power-Supply Tracker/Sequencer Circuit
Table 14. Registers Summary
REGISTERS
Input Undervoltage Thresholds
(Registers 00h to 03h)
Input Overvoltage Thresholds
(Registers 04h to 07h)
Tracking/Sequencing Modes
Tracking/Sequencing
Power-Up/Down Slew Rate
Power-Up Delay Period
Power-Down Sequence/Track
Behavior
OUT Pulldown Enable
Single/Multiple Device Application
Overcurrent Threshold
Power-Good Threshold
Overcurrent Assert Select
Overcurrent Filter Period
Fault Timeout Period
Fault Behavior
Reset Assert Select
Reset Timeout Period Select
Enable the Part with I 2 C Interface
DESCRIPTIONS
Input undervoltage thresholds (0.5V to 3.04V in 10mV increments or 1.0V to 5.5V in 20mV
increments). Each channel ’ s range is selected with register 08h.
Input overvoltage thresholds (0.5V to 3.04V in 10mV increments or 1.0V to 5.5V in 20mV
increments). Each channel ’ s range is selected with register 08h.
Selects if outputs are to be sequenced or tracked. Sequencing/tracking modes are defined
by 4 bits for each OUT voltage of register 0Bh and 0Ch (see the Track/Sequence section).
Selectable output slew rate for power-up/down mode. Selected slew is overwritten during
tracking faults. Power-up/down slew rate is selected by bit [6:7] of register 12h.
Power-up sequencing delay. Selects delay time for sequencing each supply.
Programmable delays are selected with bit [5:7] of register 0Fh.
Selectable power-down operation. Chooses if output voltages should be brought down in
the reverse sequence from power-up mode selections or if power supplies should be
simultaneously fast powered down (selected with bit 7 register 13h).
Selects if OUT_ should be internally pulled to GND when in fast shutdown or tracking fault
mode (selected with bit [6:3] register 13h).
Selects if the device will be used alone or in a master/slave application. If a single
application, the device can be operated in mixed sequencing/tracking modes. If multi-
device application, the device can be operated in tracking mode only (selected with bit
[7:6] register 09h).
00: single device 11: master device 01 or 10: slave device
Selects IN_-to-OUT_ threshold voltage for overcurrent monitoring for each channel (register 0Dh).
Selects IN_-to-OUT_ threshold voltage for power-good monitoring for each channel
(register 10h).
Selects which overcurrent monitors will assert the OC output (selected by bit [5:2] of reg. 0Eh).
Selects the filter time for the overcurrent monitors. OC will not assert until the overcurrent
condition has existed longer than the selected filter period (selected by bit [7:6] of reg. 0Eh).
Selects the timeout period for sequencing/tracking completion. If sequencing/tracking
operation is not complete before the fault timeout period, a FAULT alert will be signaled
and all supplies will be powered down (selected by bit [7:4] of reg. 0Ah).
Selects how the device should operate during faults. Options include latch-off after fault or
autoretry after fault. Autoretry delay is selectable (selected by bit 5 of reg. 09h).
Selects which OUT detectors will assert the RESET output (selected by bit [7:4] of reg. 11h).
Selects the reset timeout period (selected by bit [3:1] of reg. 11h).
Bit 0 and bit 1 of register 09h allows a micro to turn the MAX6876 on/off with the I 2 C
interface. While 09h[1] is 0, the part will ignore any enable command from I 2 C. If 09h[1] is
set to 1, then 09h[0] has to be 1 to enable the part to power on.
26
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MAX6876ETX+ 功能描述:监控电路 EEPROM-Prog Quad Power-Sup Sequencer 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
MAX6876ETX+T 功能描述:监控电路 EEPROM-Prog Quad Power-Sup Sequencer 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
MAX6876ETX-T 功能描述:监控电路 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
MAX6876EVCMOD2 功能描述:监控电路 Programmers, Development Systems 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
MAX6876EVKIT 功能描述:监控电路 Programmers, Development Systems 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