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参数资料
| 型号： | MAX6887AETE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/13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
At power-up, WDO goes high after t D-PO (see Figure 3).
Selector Guide (continued)
The initial watchdog timeout period (t WDI ) applies imme-
diately after WDO is high. The initial watchdog timeout
period allows the μP to perform its initialization process.
A normal watchdog timeout period (t WD ) applies when-
PART
IN1
NOMINAL INPUT
VOLTAGE (V)*
IN2 IN3
IN4
TOLERANCE
(%)
ever WDI transitions from high to low after the initial
watchdog timeout period occurs. WDI monitors the tog-
gling output of the μP, indicating normal processor
behavior. If WDI does not toggle during the normal
watchdog timeout period (t WD ), indicating that the
processor has stopped operating or is stuck in an infinite
execution loop, WDO goes low. WDO stays low until the
next transition on WDI. An initial watchdog timeout peri-
od (t WDI ) starts when WDO goes high.
If WDO is connected to MR, the WDO will assert for a
short duration (~5μs), long enough to assert the RESET
output. Asserting RESET clears the watchdog timer and
WDO goes high. The reset output will remain asserted
for its timeout period after a watchdog fault. The watch-
dog timer stays cleared as long as RESET is low.
Applications Information
Layout and Bypassing
For better noise immunity, bypass each of the voltage-
detector inputs to GND with 0.1μF capacitors installed
as close to the device as possible. Bypass V CC and BP
to GND with 1μF capacitors installed as close to the
MAX6888AETE
MAX6888BETE
MAX6888CETE
MAX6888DETE
MAX6888EETE
MAX6888FETE
MAX6888GETE
MAX6888HETE
MAX6888QETE
MAX6888IETE
MAX6888JETE
MAX6888KETE
MAX6888LETE
MAX6888METE
MAX6888NETE
MAX6888OETE
MAX6888PETE
MAX6888RETE
5.0
5.0
5.0
3.3
3.3
3.3
3.3
3.3
Adj
5.0
5.0
5.0
3.3
3.3
3.3
3.3
3.3
Adj
3.3
3.3
3.3
2.5
2.5
2.5
2.5
1.8
Adj
3.3
3.3
3.3
2.5
2.5
2.5
2.5
1.8
Adj
2.5
2.5
1.8
1.8
1.8
1.5
Adj
Adj
Adj
2.5
2.5
1.8
1.8
1.8
1.5
Adj
Adj
Adj
1.8
Adj
Adj
1.5
Adj
Adj
Adj
Adj
Adj
1.8
Adj
Adj
1.5
Adj
Adj
Adj
Adj
Adj
5
5
5
5
5
5
5
5
5
10
10
10
10
10
10
10
10
10
device as possible. V CC (when not externally supplied)
and BP are internally generated voltages and should
not be used to supply power to external circuitry.
Chip Information
PROCESS: BiCMOS
*See thresholds options tables (Tables 1 and 2) for actual under-
voltage and overvoltage thresholds.
Package Information
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages . Note that a "+", "#", or "-" in
the package code indicates RoHS status only. Package draw-
ings may show a different suffix character, but the drawing per-
tains to the package regardless of RoHS status.
PACKAGE TYPE
16-TQFN-EP
PACKAGE CODE
T1655+2
DOCUMENT NO.
______________________________________________________________________________________
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6887BETE | 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 |
| MAX6887BETE+ | 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 |
| MAX6887BETE+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 |
| MAX6887BETE-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 |
| MAX6887CETE | 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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