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参数资料
| 型号： | MAX16008TP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/13页 |
| 文件大小： | 0K |
| 描述： | IC VOLT-DET QUAD WINDOW 20TQFN |
| 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 <1 ms |
| 电压 - 阀值： | 可调节/可选择 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WFQFN 裸露焊盘 |
| 供应商设备封装： | 20-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
Low-Voltage, High-Accuracy, Quad Window
Voltage Detectors in Thin QFN
Detailed Description
The MAX16008/MAX16009 are adjustable quad win-
dow voltage detectors in a small thin QFN package.
These devices are designed to provide a higher level of
+5V
system reliability by monitoring multiple supply voltages
and providing a fault signal when any of the voltages
R1
V CC
exceeds its overvoltage threshold or falls below its
undervoltage threshold.
These devices offer user-adjustable thresholds that
allow voltages to be monitored down to 0.4V. The
devices allow the upper and lower trip thresholds of
R2
UVIN_
OVIN_
UVOUT_
OVOUT_
MAX16008/
MAX16009
EN
IN
OUT
DC-DC
REGULATOR
GND
V TRIPLOW = V TH ? TOTAL ?
V TRIPHIGH TH ? TOTAL ?
= V
each window detector to be set externally with the use
of three external resistors.
Each monitored threshold has an independent open-
drain output for signaling a fault condition. The outputs
can be wire OR’ed together to provide a single fault
output. The open-drain outputs are internally pulled up
with a 30μA current, but can be externally driven to
other voltage levels for interfacing to other logic levels.
Both devices feature a margin input to disable the out-
puts during margin testing or any other time after
power-up operations. The MAX16009 offers a reset out-
put that deasserts after a reset timeout period after all
voltages are within their threshold specification. The
reset timeout is internally set to 140ms (min), but can
be externally adjusted to other reset timeouts using an
external capacitor. In addition, the MAX16009 offers a
manual reset input.
Applications Information
Voltage Monitoring
The MAX16008/MAX16009 feature undervoltage and
overvoltage comparators for window detection (see
Figure 2). UVOUT_ / OVOUT_ deassert high when the
monitored voltage is within the “selected window. ”
When the monitored voltage falls below the lower limit
of the window (V TRIPLOW ), UVOUT_ asserts low; or if
the monitored voltage exceeds the upper limit
(V TRIPHIGH ), OVOUT_ asserts low. The application in
Figure 2 shows the MAX16008/MAX16009 enabling the
DC-DC converter when the monitored voltage is in the
selected window.
R3
Figure 2. MAX16008/MAX16009 Monitor Circuit
The resistor values R1, R2, and R3 can be calculated
as shown:
? R ?
? R 2 + R 3 ?
? R ?
? R 3 ?
where R TOTAL = R1 + R2 + R3.
Use the following steps to determine the values for R1,
R2, and R3:
1) Choose a value for R TOTAL , the sum of R1, R2, and
R3. Because the MAX16008/MAX16009 have very
low input bias current (2nA typ), R TOTAL can be up
to 2M Ω . Large-value resistors help minimize power
consumption. Lower-value resistors can be used to
maintain overall accuracy.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16009TG | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE, HIGH-ACCURACY, QUAD WINDOW VOLTA - Rail/Tube |
| MAX16009TG+ | 功能描述:监控电路 Quad Window Monitor 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 |
| MAX16009TG+T | 功能描述:监控电路 Quad Window Monitor 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 |
| MAX16009TG-T | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE, HIGH-ACCURACY, QUAD WINDOW VOLTA - Tape and Reel |
| MAX1600EAI | 功能描述:接口 - 专用 RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
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