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| 型号： | MAX6872ETJ+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 43/48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 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页当前第43页第44页第45页第46页第47页第48页
EEPROM-Programmable, Hex/Quad,
Power-Supply Sequencers/Supervisors
Table 27. Fault Registers (60h–62h)
REGISTER
ADDRESS
60h
61h
62h
BIT
RANGE
[0]
[1]
[2]
[3]
[4]
[5]
[7:6]
[0]
[1]
[2]
[3]
[4]
[5]
[7:6]
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
DESCRIPTION
1 = IN1 falls below primary undervoltage threshold.
1 = IN2 falls below primary undervoltage threshold.
1 = IN3 falls below primary undervoltage threshold.
1 = IN4 falls below primary undervoltage threshold.
1 = IN5 (MAX6872 only) falls below primary undervoltage threshold.
1 = IN6 (MAX6872 only) falls below primary undervoltage threshold.
Not used.
1 = IN1 falls below secondary undervoltage threshold or rises above secondary overvoltage threshold,
depending on the settings in register 0Ch (see Tables 2, 3, and 4).
1 = IN2 falls below secondary undervoltage threshold or rises above secondary overvoltage threshold,
depending on the settings in register 0Ch (see Tables 2, 3, and 4).
1 = IN3 falls below secondary undervoltage threshold or rises above secondary overvoltage threshold,
depending on the settings in register 0Ch (see Tables 2, 3, and 4).
1 = IN4 falls below secondary undervoltage threshold or rises above secondary overvoltage threshold,
depending on the settings in register 0Ch (see Tables 2, 3, and 4).
1 = IN5 (MAX6872 only) falls below secondary undervoltage threshold or rises above secondary
overvoltage threshold, depending on the settings in register 0Ch (see Tables 2, 3, and 4).
1 = IN6 (MAX6872 only) falls below secondary undervoltage threshold or rises above secondary
overvoltage threshold, depending on the settings in register 0Ch (see Tables 2, 3, and 4).
Not used.
1 = WD1 asserted.
1 = WD2 asserted.
1 = GPI1 asserted.
1 = GPI2 asserted.
1 = GPI3 asserted.
1 = GPI4 asserted.
1 = MR asserted.
Not used.
Forcing Programmable
Outputs High During Power-Up
A weak 10μA pulldown holds all programmable outputs
low during power-up until ABP exceeds the undervolt-
age lockout (UVLO) threshold. Applications requiring a
guaranteed high programmable output for ABP down to
GND require external pullup resistors to maintain the
logic state until ABP exceeds UVLO. Use 20k ? resis-
tors for most applications.
Driving High-Side MOSFET
Switches with the MAX6872/MAX6873
High-side MOSFET switches are commonly used in
power-supply sequencing applications. First, configure
the programmable output of the MAX6872/MAX6873 as
an active-low charge-pump output and set the condi-
tions to assert this output. Connect the programmable
output to the gate of an n-channel MOSFET. As the
conditions to deassert this output are met, the output
deasserts high (V ABP +5V), turning on the FET, thus
allowing the voltage on the drain to pass through to the
downstream device (see Figure 9).
______________________________________________________________________________________
43
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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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