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| 型号： | MAX6873ETJ+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/48页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCE/SUPERVISOR 32TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 序列发生器 |
| 监视电压数目： | 4 |
| 输出： | 开路漏极，推挽式 |
| 复位： | 高有效/低有效 |
| 复位超时： | 可调节/可选择 |
| 电压 - 阀值： | 5 种可调阀值电压 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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EEPROM-Programmable, Hex/Quad,
Power-Supply Sequencers/Supervisors
MR
The manual reset ( MR ) input initiates a reset condi-
tion. Register 40h determines the programmable out-
puts that assert while MR is low ( Table 6). All affected
programmable outputs remain asserted (see the
Programmable Outputs section) for their PO_ timeout
periods after MR releases high. An internal 10μA cur-
rent source pulls MR to DBP. Leave MR unconnected
or connect to DBP if unused. A programmable output
cannot depend solely on MR .
MARGIN
MARGIN allows system-level testing while power sup-
plies exceed the normal ranges. Registers 41h and
42h determine whether the programmable outputs
assert to a predetermined state or hold the last state
as MARGIN is driven low ( Table 7). Drive MARGIN low
to set the programmable outputs in a known state
while system-level testing occurs. Leave MARGIN
Table 5. GPI1–GPI4 Active Logic States
unconnected or connect to DBP if unused. An internal
10μA current source pulls MARGIN to DBP. The state
of each programmable output does not change while
MARGIN = GND. MARGIN overrides MR if both assert
at the same time.
Programmable Outputs
The MAX6872 features eight programmable outputs,
while the MAX6873 features five programmable outputs.
Selectable output-stage configurations include: active low
or active high, open drain, weak pullup, push-pull, or
charge pump. During power-up, the programmable out-
puts pull to GND with an internal 10μA current sink for 1V
< V ABP < V UVLO . The programmable outputs remain in
their active states until their respective PO_ timeout peri-
ods expire, and all of the programmed conditions are met
for each output. Any output programmed to depend on
no condition always remains in its active state ( Table 20).
An active-high configured output is considered asserted
REGISTER
ADDRESS
3Bh
EEPROM
MEMORY
ADDRESS
803Bh
BIT RANGE
[0]
[1]
[2]
[3]
DESCRIPTION
GPI1. 0 = active low. 1 = active high.
GPI2. 0 = active low. 1 = active high.
GPI3. 0 = active low. 1 = active high.
GPI4. 0 = active low. 1 = active high.
Table 6. Programmable Output Behavior and MR
REGISTER
ADDRESS
40h
EEPROM
MEMORY
ADDRESS
8040h
BIT
RANGE
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
DESCRIPTION
PO1 (MAX6872 only). 0 = PO1 independent of MR . 1 = PO1 asserts when MR = low.
PO2 (MAX6872 only). 0 = PO2 independent of MR . 1 = PO2 asserts when MR = low.
PO3 (MAX6872)/PO1 (MAX6873). 0 = PO3/PO1 independent of MR .
1 = PO3/PO1 asserts when MR = low.
PO4 (MAX6872)/PO2 (MAX6873). 0 = PO4/PO2 independent of MR .
1 = PO4/PO2 asserts when MR = low.
PO5 (MAX6872)/PO3 (MAX6873). 0 = PO5/PO3 independent of MR .
1 = PO5/PO3 asserts when MR = low.
PO6 (MAX6872)/PO4 (MAX6873). 0 = PO6/PO4 independent of MR .
1 = PO6/PO4 asserts when MR = low.
PO7 (MAX6872)/PO5 (MAX6873). 0 = PO7/PO5 independent of MR .
1 = PO7/PO5 asserts when MR = low.
PO8 (MAX6872 only). 0 = PO8 independent of MR . 1 = PO8 asserts when MR = low.
16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6874ETJ | 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 |
| MAX6874ETJ+ | 功能描述:监控电路 EEPROM-Prog Hex 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 |
| MAX6874ETJ+T | 功能描述:监控电路 EEPROM-Prog Hex 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 |
| MAX6874ETJ-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 |
| MAX6874TCC+ | 制造商:Maxim Integrated Products 功能描述: |
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