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参数资料
| 型号： | MAX6887OETE+T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | Hex/Quad, Power-Supply Supervisory Circuits |
| 中文描述： | 6-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC16 |
| 封装： | 5 X 5 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-220WHHB, TQFN-16 |
| 文件页数： | 9/13页 |
| 文件大小： | 132K |
| 代理商： | MAX6887OETE+T |
MAX6887/MAX6888
Hex/Quad, Power-Supply Supervisory Circuits
_______________________________________________________________________________________
5
Pin Description (continued)
PIN
MAX6887
MAX6888
NAME
FUNCTION
55
MR
Manual Reset Input. Pull MR low to assert RESET. Connect MR to WDO to generate resets
when the watchdog timer expires. Leave MR unconnected or connect to DBP if unused. MR is
internally pulled up to BP through a 10A current source.
66
MARGIN
Margin Input. When MARGIN is pulled low, RESET is held in its existing state independent of
subsequent changes in monitored input voltages or the watchdog timer expiration. MARGIN is
internally pulled up to BP through a 10A current source. Leave MARGIN unconnected or
connect to BP if unused. MARGIN overrides MR if both are asserted at the same time.
7
WDI
Watchdog Timer Input. Logic input for the watchdog timer function. If WDI is not strobed with a
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 10A current sink.
8
I.C.
Internal Connection. Leave unconnected.
99
VCC
Internal Power-Supply Voltage. Bypass VCC to GND with a 1F ceramic capacitor as close to
the device as possible. VCC supplies power to the internal circuitry. VCC is internally powered
from the highest of the monitored IN1–IN4 voltages. Do not use VCC to supply power to external
circuitry. To externally supply VCC, see the Powering the MAX6887/MAX6888 section.
10
BP
Bypass Voltage. The internally generated voltage at BP supplies power to internal logic and
output RESET. Connect a 1F capacitor from BP to GND as close to the device as possible. Do
not use BP to supply power to external circuitry.
11
—
IN6
Input Voltage Detector 6. IN6 monitors both undervoltage and overvoltage conditions. See the
thresholds options (Tables 1 and 2) for available thresholds. IN6 cannot power the device. For
improved noise immunity, bypass IN6 to GND with a 0.1F capacitor installed as close to the
device as possible.
12
—
IN5
Input Voltage Detector 5. IN5 monitors both undervoltage and overvoltage conditions. See the
thresholds options (Tables 1 and 2) for available thresholds. IN5 cannot power the device. For
improved noise immunity, bypass IN5 to GND with a 0.1F capacitor installed as close to the
device as possible.
13
IN4
Input Voltage Detector 4. IN4 monitors both undervoltage and overvoltage conditions. See the
thresholds options (Tables 1 and 2) for available thresholds. Power the device through IN1–IN4
or VCC (see the Powering the MAX6887/MAX6888 section). For improved noise immunity,
bypass IN4 to GND with a 0.1F capacitor installed as close to the device as possible.
14
IN3
Input Voltage Detector 3. IN3 monitors both undervoltage and overvoltage conditions. See the
thresholds options (Tables 1 and 2) for available thresholds. Power the device through IN1–IN4
or VCC (see the Powering the MAX6887/MAX6888 section). For improved noise immunity,
bypass IN3 to GND with a 0.1F capacitor installed as close to the device as possible.
15
IN2
Input Voltage Detector 2. IN2 monitors both undervoltage and overvoltage conditions. See the
thresholds options (Tables 1 and 2) for available thresholds. Power the device through IN1–IN4
or VCC (see the Powering the MAX6887/MAX6888 section). For improved noise immunity,
bypass IN2 to GND with a 0.1F capacitor installed as close to the device as possible.
16
IN1
Input Voltage Detector 1. IN1 monitors both undervoltage and overvoltage conditions. See the
thresholds options (Tables 1 and 2) for available thresholds. Power the device through IN1–IN4
or VCC (see the Powering the MAX6887/MAX6888 section). For improved noise immunity,
bypass IN1 to GND with a 0.1F capacitor installed as close to the device as possible.
—
11, 12
N.C.
No Connection. Not internally connected.
——
EP
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 |
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| 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 |
| MAX6887PETE+ | 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 |
| MAX6887PETE+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 |
| MAX6887PETE-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 |
| MAX6887QETE | 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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