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参数资料
| 型号： | MAX6887NETE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/13页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR HEX 16-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 多压监控器 |
| 监视电压数目： | 6 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 180 ms |
| 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： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
Hex/Quad, Power-Supply Supervisory Circuits
Table 2. MAX6888 Threshold Options
PART
IN1
UV THRESHOLDS (V)
IN2 IN3
IN4
IN1
OV THRESHOLDS (V)
IN2 IN3
IN4
MAX6888AETE
MAX6888BETE
MAX6888CETE
MAX6888DETE
MAX6888EETE
MAX6888FETE
MAX6888GETE
MAX6888HETE
MAX6888QETE
MAX6888IETE
MAX6888JETE
MAX6888KETE
MAX6888LETE
MAX6888METE
MAX6888NETE
MAX6888OETE
MAX6888PETE
MAX6888RETE
4.620
4.620
4.620
3.060
3.060
3.060
3.060
3.060
0.557
4.380
4.380
4.380
2.880
2.880
2.880
2.880
2.880
0.527
3.060
3.060
3.060
2.310
2.310
2.310
2.310
1.670
0.557
2.880
2.880
2.880
2.190
2.190
2.190
2.190
1.580
0.527
2.310
2.310
1.670
1.670
1.670
1.390
0.557
0.557
0.557
2.190
2.190
1.580
1.580
1.580
1.310
0.527
0.527
0.527
1.670
0.557
0.557
1.390
0.557
0.557
0.557
0.557
0.557
1.580
0.527
0.527
1.310
0.527
0.527
0.527
0.527
0.527
5.360
5.360
5.360
3.540
3.540
3.540
3.540
3.540
0.643
5.620
5.620
5.620
3.700
3.700
3.700
3.700
3.700
0.673
3.540
3.540
3.540
2.680
2.680
2.680
2.680
1.930
0.643
3.700
3.700
3.700
2.810
2.810
2.810
2.810
2.020
0.673
2.680
2.680
1.930
1.930
1.930
1.610
0.643
0.643
0.643
2.810
2.810
2.020
2.020
2.020
1.680
0.673
0.673
0.673
1.930
0.643
0.643
1.610
0.643
0.643
0.643
0.643
0.643
2.020
0.673
0.673
1.680
0.673
0.673
0.673
0.673
0.673
existing state while system-level testing occurs. Leave
MARGIN unconnected or connect to BP if unused. An
internal 10μA current source pulls MARGIN to BP.
MARGIN overrides MR if both are asserted at the
same time. The state of RESET , OV , and WDO does not
change while MARGIN = GND.
RESET , OV , and WDO Outputs
The MAX6887/MAX6888 feature three active-low open-
drain outputs: RESET , OV , and WDO . After power-up or
overvoltage/undervoltage conditions, RESET and OV
remain in their active states until their timeout periods
expire and no undervoltage/overvoltage conditions are
present (see Figure 2).
OV asserts when any monitored input is above its over-
voltage threshold and remains asserted until all inputs
are below their thresholds and its respective 25μs time-
out period expires. Connect OV to MR to bring RESET
low during an overvoltage condition. OV requires a
pullup resistor (unless connected to MR ).
RESET asserts when any monitored input is below its
undervoltage threshold or MR is asserted. RESET
remains asserted for 200ms after all assertion-causing
conditions have been cleared. Configure RESET to
assert when the watchdog timer expires by connecting
WDO to MR . RESET requires a pullup resistor.
WDO asserts when the watchdog timer expires. See
the Configuring the Watchdog Timer section for a com-
plete description. WDO requires a pullup resistor.
Configuring the Watchdog Timer
A watchdog timer monitors microprocessor (μP) soft-
ware execution for a stalled condition and resets the μP
if it stalls. Connect the watchdog timer output WDO to
the reset input or a nonmaskable interrupt of the μP.
The watchdog timer features independent initial and
normal watchdog timeout periods of 102.4s and 1.6s,
respectively.
_______________________________________________________________________________________
9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6887OETE | 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 |
| MAX6887OETE+ | 功能描述:监控电路 Hex Power-Supply Supervisor 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 |
| MAX6887OETE+T | 功能描述:监控电路 Hex Power-Supply Supervisor 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 |
| MAX6887OETE-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 |
| MAX6887PETE | 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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