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参数资料
| 型号： | MAX6874ETJ |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | EEPROM-Programmable, Hex/Quad, Power-Supply Sequencers/Supervisors |
| 中文描述： | 6-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC32 |
| 封装： | 7 X 7 MM, 0.80 MM HEIGHT, MO-220, TQFN-32 |
| 文件页数： | 8/40页 |
| 文件大小： | 337K |
| 代理商： | MAX6874ETJ |
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MAX6874/MAX6875
EEPROM-Programmable, Hex/Quad,
Power-Supply Sequencers/Supervisors
16
______________________________________________________________________________________
on no condition always remains in its active state (Table
19). An output configured as active-high is considered
asserted when that output is logic high. No output can
depend solely on MR.
The voltage monitors generate fault signals (logical 0) to
the MAX6874/MAX6875s’ logic array when an input volt-
age is below the programmed undervoltage threshold.
Registers 0Eh through 3Ah and 40h configure each of the
programmable outputs. Programmable timing blocks set
the PO_ timeout period from 25s to 1600ms for each
programmable output. See register 3Ah (Table 15) to set
the active state (active-high or active-low) for each pro-
grammable output and Table 16 for timeout periods for
each output.
For example, PO3 (MAX6874—Table 9) may depend on
the IN1 undervoltage threshold, and the states of GPI1,
PO1, and PO2. Write a one to R16h[0], R17h[6], and
R18h[3:2] to configure the output as indicated. IN1 must
be above the undervoltage threshold (Table 2), GPI1
must be inactive (Table 5), and PO1 (Tables 7 and 15)
and PO2 (Table 9) must be in their deasserted states for
the output to deassert.
Table 7 only applies to PO1 of the MAX6874. Write a 0
to a bit to make the PO1 output independent of the
respective signal (IN1–IN6 thresholds, WD, GPI1–GPI4,
MR, or other programmable outputs).
Table 7. PO1 (MAX6874 Only) Output Dependency
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT
OUTPUT ASSERTION CONDITIONS
[0]
1 = PO1 assertion depends on IN1 undervoltage threshold (Table 2).
[1]
1 = PO1 assertion depends on IN2 undervoltage threshold (Table 3).
[2]
1 = PO1 assertion depends on IN3 undervoltage threshold (Table 4).
[3]
1 = PO1 assertion depends on IN4 undervoltage threshold (Table 4).
[4]
1 = PO1 assertion depends on IN5 undervoltage threshold (Table 4).
[5]
1 = PO1 assertion depends on IN6 undervoltage threshold (Table 4).
[6]
1 = PO1 assertion depends on watchdog (Tables 19 and 20).
0Eh
800Eh
[7]
Must be set to 0.
[5:0]
Must be set to 0.
[6]
1 = PO1 assertion depends on GPI1 (Table 5).
0Fh
800Fh
[7]
1 = PO1 assertion depends on GPI2 (Table 5).
[0]
1 = PO1 assertion depends on GPI3 (Table 5).
[1]
1 = PO1 assertion depends on GPI4 (Table 5).
[2]
1 = PO1 assertion depends on PO2 (Table 8).
[3]
1 = PO1 assertion depends on PO3 (Table 9).
[4]
1 = PO1 assertion depends on PO4 (Table 10).
[5]
1 = PO1 assertion depends on PO5 (Table 11).
[6]
1 = PO1 assertion depends on PO6 (Table 12).
10h
8010h
[7]
1 = PO1 assertion depends on PO7 (Table 13).
11h
8011h
[0]
1 = PO1 assertion depends on PO8 (Table 14).
40h
8040h
[0]
1 = PO1 asserts when MR = low (Table 6).
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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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