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参数资料
| 型号： | MAX6888OETE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/13页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR QUAD 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： | 4 |
| 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： | 2.5V，3.3V，可调，可调 |
| 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
Pin Description (continued)
PIN
MAX6887 MAX6888
NAME
FUNCTION
Manual Reset Input. Pull MR low to assert RESET . Connect MR to WDO to generate resets
5
5
MR
when the watchdog timer expires. Leave MR unconnected or connect to DBP if unused. MR is
internally pulled up to BP through a 10μA current source.
Margin Input. When MARGIN is pulled low, RESET is held in its existing state independent of
6
6
MARGIN
subsequent changes in monitored input voltages or the watchdog timer expiration. MARGIN is
internally pulled up to BP through a 10μA current source. Leave MARGIN unconnected or
connect to BP if unused. MARGIN overrides MR if both are asserted at the same time.
Watchdog Timer Input. Logic input for the watchdog timer function. If WDI is not strobed with a
7
7
WDI
valid low-to-high or high-to-low transition within the selected watchdog timeout period, WDO
asserts. WDI is internally pulled down to GND through a 10μA current sink.
8
8
I.C.
Internal Connection. Leave unconnected.
Internal Power-Supply Voltage. Bypass V CC to GND with a 1μF ceramic capacitor as close to
9
9
V CC
the device as possible. V CC supplies power to the internal circuitry. V CC is internally powered
from the highest of the monitored IN1–IN4 voltages. Do not use V CC to supply power to external
circuitry. To externally supply V CC , see the Powering the MAX6887/MAX6888 section.
Bypass Voltage. The internally generated voltage at BP supplies power to internal logic and
10
10
BP
output RESET . Connect a 1μF capacitor from BP to GND as close to the device as possible. Do
not use BP to supply power to external circuitry.
Input Voltage Detector 6. IN6 monitors both undervoltage and overvoltage conditions. See the
11
—
IN6
thresholds options (Tables 1 and 2) for available thresholds. IN6 cannot power the device. For
improved noise immunity, bypass IN6 to GND with a 0.1μF capacitor installed as close to the
device as possible.
Input Voltage Detector 5. IN5 monitors both undervoltage and overvoltage conditions. See the
12
—
IN5
thresholds options (Tables 1 and 2) for available thresholds. IN5 cannot power the device. For
improved noise immunity, bypass IN5 to GND with a 0.1μF capacitor installed as close to the
device as possible.
Input Voltage Detector 4. IN4 monitors both undervoltage and overvoltage conditions. See the
13
13
IN4
thresholds options (Tables 1 and 2) for available thresholds. Power the device through IN1–IN4
or V CC (see the Powering the MAX6887/MAX6888 section). For improved noise immunity,
bypass IN4 to GND with a 0.1μF capacitor installed as close to the device as possible.
Input Voltage Detector 3. IN3 monitors both undervoltage and overvoltage conditions. See the
14
14
IN3
thresholds options (Tables 1 and 2) for available thresholds. Power the device through IN1–IN4
or V CC (see the Powering the MAX6887/MAX6888 section). For improved noise immunity,
bypass IN3 to GND with a 0.1μF capacitor installed as close to the device as possible.
Input Voltage Detector 2. IN2 monitors both undervoltage and overvoltage conditions. See the
15
15
IN2
thresholds options (Tables 1 and 2) for available thresholds. Power the device through IN1–IN4
or V CC (see the Powering the MAX6887/MAX6888 section). For improved noise immunity,
bypass IN2 to GND with a 0.1μF capacitor installed as close to the device as possible.
Input Voltage Detector 1. IN1 monitors both undervoltage and overvoltage conditions. See the
16
16
IN1
thresholds options (Tables 1 and 2) for available thresholds. Power the device through IN1–IN4
or V CC (see the Powering the MAX6887/MAX6888 section). For improved noise immunity,
bypass IN1 to GND with a 0.1μF capacitor installed as close to the device as possible.
—
—
11, 12
—
N.C.
EP
No Connection. Not internally connected.
Exposed Paddle. Internally connected to GND. Connect EP to GND or leave unconnected.
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6888PETE | 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 |
| MAX6888PETE+ | 功能描述:监控电路 Quad 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 |
| MAX6888PETE+T | 功能描述:监控电路 Quad 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 |
| MAX6888PETE-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 |
| MAX6888QETE | 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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