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参数资料
| 型号： | MAX6884ETP+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/34页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR PWR SPL 20-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 类型： | 多压监控器 |
| 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： | 6 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： | 20-WQFN 裸露焊盘 |
| 供应商设备封装： | 20-TQFN-EP（5x5） |
| 包装： | 管件 |
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EEPROM-Programmable, Hex
Power-Supply Supervisory Circuits
The MAX6884/MAX6885 feature a watchdog timer with
programmable initial and normal timeout periods from
6.25ms to 102.4s. WDO asserts when WDI is not tog-
gled from high-to-low or low-to-high within the appro-
priate watchdog timeout period. Program WDO to
assert RESET .
Table 1. Programmable Features
Program the MAX6884/MAX6885 to receive power
through IN1 –IN4 or V CC (see the Powering the
MAX6884/MAX6885 section). Outputs remain asserted
while the voltage that is supplying the device is below
UVLO (2.5V) and above 1V (see Figure 1).
FEATURE
?
?
DESCRIPTION
Primary undervoltage threshold
Secondary undervoltage or overvoltage threshold
Input Voltages IN1–IN6
?
?
?
1V to 5.8V thresholds in 20mV increments
0.5V to 3.05V thresholds in 10mV increments
0.1667V to 1.017V thresholds in 3.3mV increments in high-impedance mode
? Dependency on IN1–IN6, MR , UV / OV , and/or WDO
Programmable Output RESET
Programmable Output UV / OV
Programmable Output WDO
Watchdog Timer
V CC Power Mode
Manual Reset Input MR
? Active-low, weak pullup, or open-drain output
? Programmable timeout periods of 25μs, 1.5625ms, 6.25ms, 25ms, 50ms, 200ms, 400ms, or
1.6s
? Dependency on IN1–IN6, MR , and/or RESET
? Active-low, weak pullup, or open-drain output
? Programmable timeout periods of 25μs, 1.5625ms, 6.25ms, 25ms, 50ms, 200ms, 400ms, or
1.6s
? Active-low, weak pullup, or open-drain output
? Initial watchdog timeout period of 6.25ms, 25ms, 100ms, 400ms, 1.6s, 6.4s, 25.6s, or 102.4s
? Normal watchdog timeout period of 6.25ms, 25ms, 100ms, 400ms, 1.6s, 6.4s, 25.6s, or 102.4s
? Watchdog enable/disable
? Programs whether the device is powered from the highest IN_ input or from an external supply
connected to V CC
? Program RESET or UV / OV to assert while MR is asserted
?
Internal +1.25V reference voltage
Reference Input REFIN
10-Bit ADC*
?
?
?
?
?
?
?
Goes high impedance when internal reference is selected
External reference voltage input from 1.225V to 1.275V
Sets ADC voltage range
Samples voltages at IN1–IN6, AUXIN, and V CC
Completes conversion of all eight inputs in 200ms
Reference voltage sets ADC range
Read ADC data from SMBus/I 2 C interface
Write Disable
Configuration Lock
? Locks user EEPROM based on RESET or UV / OV assertion
? Locks configuration registers and EEPROM
* ADC does not affect programmable outputs.
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6884ETP+ | 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 |
| MAX6884ETP+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 |
| MAX6884ETP-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 |
| MAX6884EVCMOD2 | 功能描述:监控电路 Programmers, Development Systems 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 |
| MAX6884EVKIT | 功能描述:监控电路 Programmers, Development Systems 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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