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| 型号： | MAX6871ETJ+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 17/51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： | 2,500 |
| 类型： | 序列发生器 |
| 监视电压数目： | 4 |
| 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： | 5 种可调阀值电压 |
| 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： | 带卷 (TR) |
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EEPROM-Programmable Hex/Quad
Power-Supply Sequencers/Supervisors with ADC
AUXIN1 and AUXIN2
The AUXIN1 and AUXIN2 high-impedance analog inputs
are intended to monitor two additional system voltages
not required for power-supply sequencing or reset pur-
poses. The internal 10-bit ADC monitors AUXIN1 and
AUXIN2 and stores the data in the ADC registers (Table
Table 5. ADC Registers for AUXIN1 and
AUXIN2 (Read Only)
5). AUXIN1 and AUXIN2 do not assert any of the pro-
grammable outputs. The AUXIN1 and AUXIN2 inputs
accept power-supply voltages or other system voltages
scaled to the +1.25V ADC input voltage range.
GPI1–GPI4
The GPI1 – GPI4 programmable logic inputs control
power-supply sequencing (programmable outputs),
reset/interrupt signaling, and watchdog functions (see
the Configuring the Watchdog Timers (Registers
REGISTER
ADDRESS
5Ch
5Dh
5Eh
5Fh
BIT
RANGE
[7:0]
[1:0]
[7:2]
[7:0]
[1:0]
[7:2]
DESCRIPTION
AUXIN1 measured value, 8 MSBs.
AUXIN1 measured value, 2 LSBs.
Not used.
AUXIN2 measured value, 8 MSBs.
AUXIN2 measured value, 2 LSBs.
Not used.
3Ch – 3Fh) section). Configure GPI1 – GPI4 for active-low
or active-high logic (Table 6). GPI1 – GPI4 internally pull
down to GND through a 10μA current sink.
MR
The manual reset ( MR ) input initiates a reset condition.
Register 40h determines the programmable outputs that
assert while MR is low (Table 7). All affected programma-
ble outputs remain asserted (see the Programmable
Outputs section) for their PO_ timeout periods after MR
releases high. An internal 10μA current source pulls MR
to DBP. Leave MR unconnected or connect to DBP if
Table 6. GPI1 – GPI4 Active Logic States
REGISTER BIT
DESCRIPTION
ADDRESS RANGE
unused. A programmable output cannot depend solely
on MR .
[0]
GPI1. 0 = active low. 1 = active high.
3Bh
[1]
[2]
[3]
GPI2. 0 = active low. 1 = active high.
GPI3. 0 = active low. 1 = active high.
GPI4. 0 = active low. 1 = active high.
Table 7. Programmable Output Behavior and MR
REGISTER
ADDRESS
40h
EEPROM
MEMORY
ADDRESS
8040h
BIT
RANGE
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
DESCRIPTION
PO1 (MAX6870 only). 0 = PO1 independent of MR . 1 = PO1 asserts when MR = low.
PO2 (MAX6870 only). 0 = PO2 independent of MR . 1 = PO2 asserts when MR = low.
PO3 (MAX6870)/PO1 (MAX6871). 0 = PO3/PO1 independent of MR .
1 = PO3/PO1 asserts when MR = low.
PO4 (MAX6870)/PO2 (MAX6871). 0 = PO4/PO2 independent of MR .
1 = PO4/PO2 asserts when MR = low.
PO5 (MAX6870)/PO3 (MAX6871). 0 = PO5/PO3 independent of MR .
1 = PO5/PO3 asserts when MR = low.
PO6 (MAX6870)/PO4 (MAX6871). 0 = PO6/PO4 independent of MR .
1 = PO6/PO4 asserts when MR = low.
PO7 (MAX6870)/PO5 (MAX6871). 0 = PO7/PO5 independent of MR .
1 = PO7/PO5 asserts when MR = low.
PO8 (MAX6870 only). 0 = PO8 independent of MR . 1 = PO8 asserts when MR = low.
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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 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+ | 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 |
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