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参数资料
| 型号： | MAX6872ETJ+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 18/48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： | 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 8. PO1 (MAX6872 Only) Output Dependency
REGISTER
ADDRESS
0Eh
0Fh
10h
11h
40h
EEPROM
MEMORY
ADDRESS
800Eh
800Fh
8010h
8011h
8040h
BIT
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[0]
[0]
OUTPUT ASSERTION CONDITIONS
1 = PO1 assertion depends on IN1 primary undervoltage threshold (Table 2).
1 = PO1 assertion depends on IN2 primary undervoltage threshold (Table 3).
1 = PO1 assertion depends on IN3 primary undervoltage threshold (Table 4).
1 = PO1 assertion depends on IN4 primary undervoltage threshold (Table 4).
1 = PO1 assertion depends on IN5 primary undervoltage threshold (Table 4).
1 = PO1 assertion depends on IN6 primary undervoltage threshold (Table 4).
1 = PO1 assertion depends on watchdog 1 (Tables 25 and 26).
1 = PO1 assertion depends on watchdog 2 (Tables 25 and 26).
1 = PO1 assertion depends on IN1 secondary undervoltage/overvoltage threshold (Table 2).
1 = PO1 assertion depends on IN2 secondary undervoltage/overvoltage threshold (Table 3).
1 = PO1 assertion depends on IN3 secondary undervoltage/overvoltage threshold (Table 4).
1 = PO1 assertion depends on IN4 secondary undervoltage/overvoltage threshold (Table 4).
1 = PO1 assertion depends on IN5 secondary undervoltage/overvoltage threshold (Table 4).
1 = PO1 assertion depends on IN6 secondary undervoltage/overvoltage threshold (Table 4).
1 = PO1 assertion depends on GPI1 (Table 5).
1 = PO1 assertion depends on GPI2 (Table 5).
1 = PO1 assertion depends on GPI3 (Table 5).
1 = PO1 assertion depends on GPI4 (Table 5).
1 = PO1 assertion depends on PO2 (Table 9).
1 = PO1 assertion depends on PO3 (Tables 10 and 11).
1 = PO1 assertion depends on PO4 (Tables 12 and 13).
1 = PO1 assertion depends on PO5 (Tables 14 and 15).
1 = PO1 assertion depends on PO6 (Tables 16 and 17).
1 = PO1 assertion depends on PO7 (Table 18).
1 = PO1 assertion depends on PO8 (Table 19).
1 = PO1 asserts when MR = low (Table 6).
for each programmable output. See register 3Ah ( Table
20) to set the active state (active-high or active-low) for
each programmable output and registers 11h, 15h,
1Ch, 23h, 2Ah, 31h, 35h, and 39h to select the output
stage types (Tables 21 and 22), and PO_ timeout peri-
ods ( Table 23) for each output.
Control selected programmable outputs with a sum of
products (Tables 8–19). Each product allows a different
set of conditions to assert each output. Outputs PO3
(MAX6872)/PO1 (MAX6873) and PO6 (MAX6872)/
PO4 (MAX6873) allow two sets of different conditions to
assert each output. Outputs PO1 and PO2 (MAX6872
only), PO7 (MAX6872)/PO5 (MAX6873), and PO8
(MAX6872 only) allow only one set of conditions to
assert each output.
For example, Product 1 of the PO3 (MAX6872— Table
10) programmable output may depend on the IN1 pri-
mary undervoltage threshold, and the states of GPI1,
PO1, and PO2. Write a one to R16h[0], R17h[6], and
R18h[3:2] to configure Product 1 as indicated. IN1
must be above the primary undervoltage threshold
( Table 2), GPI1 must be inactive ( Table 5), and PO1
(Tables 8 and 20) and PO2 (Tables 10 and 21) must
be in their deasserted states for Product 1 to be a logi-
cal 1. Product 1 is equivalent to the logic statement:
V1A ? GPI1 ? PO1 ? PO2.
Product 2 of PO3 (MAX6872, Table 11) may depend on
an entirely different set of conditions, or the same condi-
tions, depending on the system requirements. For
example, Product 2 may depend on the IN1 undervolt-
18
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| MAX6872ETJ+ | 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 |
| MAX6872ETJ+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 |
| MAX6872ETJ-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 |
| MAX6873ETJ | 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 |
| MAX6873ETJ+ | 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 |
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