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参数资料
| 型号： | MAX6874ETJ+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 23/40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： | 43 |
| 类型： | 序列发生器 |
| 监视电压数目： | 6 |
| 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： | 8 种可选阀值组合 |
| 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： | 管件 |
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EEPROM-Programmable, Hex/Quad,
Power-Supply Sequencers/Supervisors
Table 14. PO8 (MAX6874 only) Output Dependency
REGISTER
ADDRESS
36h
37h
38h
39h
40h
EEPROM
MEMORY
ADDRESS
8036h
8037h
8038h
8039h
8040h
BIT
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[5:0]
[6]
[7]
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[0]
[7]
OUTPUT ASSERTION CONDITIONS
1 = PO8 assertion depends on IN1 undervoltage threshold (Table 2).
1 = PO8 assertion depends on IN2 undervoltage threshold (Table 3).
1 = PO8 assertion depends on IN3 undervoltage threshold (Table 4).
1 = PO8 assertion depends on IN4 undervoltage threshold (Table 4).
1 = PO8 assertion depends on IN5 undervoltage threshold (Table 4).
1 = PO8 assertion depends on IN6 undervoltage threshold (Table 4).
1 = PO8 assertion depends on watchdog (Tables 18 and 19).
Must set to 0.
Must set to 0.
1 = PO8 assertion depends on GPI1 (Table 5).
1 = PO8 assertion depends on GPI2 (Table 5).
1 = PO8 assertion depends on GPI3 (Table 5).
1 = PO8 assertion depends on GPI4 (Table 5).
1 = PO8 assertion depends on PO1 (Table 7).
1 = PO8 assertion depends on PO2 (Table 8).
1 = PO8 assertion depends on PO3 (Table 9).
1 = PO8 assertion depends on PO4 (Table 10).
1 = PO8 assertion depends on PO5 (Table 11).
1 = PO8 assertion depends on PO6 (Table 12).
1 = PO8 assertion depends on PO7 (Table 13).
1 = PO8 asserts when MR = low (Table 6).
Table 14 only applies to PO8 of the MAX6874. Write a 0
to a bit to make the PO8 output independent of the
respective signal (IN1–IN6 thresholds, WD, GPI1–GPI4,
MR , or other programmable outputs).
Output Stage Configurations
Independently program each programmable output as
active-high or active-low (Table 15). All programmable
outputs of the MAX6874/MAX6875 are open-drain only.
See Table 16 to set the timeout period for each output.
Open-Drain Output Configuration
Connect an external pullup resistor from the program-
mable output to an external voltage when configured as
an open-drain output. PO1–PO4 (PO1 and PO2 for the
MAX6875) may be pulled up to +13.2V. PO5 –PO8
(PO3–PO5 for the MAX6875) may be pulled up to a
voltage less than or equal to ABP. Choose the pullup
resistor depending on the number of devices connect-
ed to the open-drain output and the allowable current
consumption. The open-drain output configuration
allows wire-ORed connections, and provides flexibility
in setting the pullup current.
Configuring the MAX6874/MAX6875
The MAX6874/MAX6875 factory-default configuration
sets all EEPROM registers to 00h except register 3Ah,
which is set to FFh. This configuration sets all of the pro-
grammable outputs as active-high (putting all outputs
into high-impedance states until the device is reconfig-
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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 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: |
| MAX6875ETJ | 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 |
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