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参数资料
| 型号： | MAX6457UKD3B+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 13/15页 |
| 文件大小： | 0K |
| 描述： | IC SUPPLY VOLT MONITOR SOT23-5 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 90 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： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 标准包装 |
| 产品目录页面： | 1417 (CN2011-ZH PDF) |
| 其它名称： | MAX6457UKD3B+TDKR |
MAX6457–MAX6460
High-Voltage, Low-Current Voltage Monitors in
SOT Packages
R 2 =
V TH - × R TOTAL
V TRIPLOW
- R 3
Interfacing to Voltages Other than V CC
The open-drain outputs of the MAX6457 –MAX6460
allow the output voltage to be selected independent of
=
( 1 . 167 V ) ( 4 . 2 M ? )
18 . 9 V
= 36 . 06 k ?
4) Calculate R1
- 223 . 273 k ?
V CC . For systems requiring an output voltage other than
V CC , connect the pullup resistor between OUT, OUTA, or
OUTB and any desired voltage up to 28V (see Figure 13).
Monitoring Negative Voltages
Figure 14 shows the typical application circuit for moni-
R 1 = R TOTAL - R 2 - R 3
= 4 . 2 M ? - 223 . 273 k ? - 36 . 06 k ?
toring negative voltages (V NEG ) using the MAX6460.
Select a value for R1 between 25k ? and 1M ? . Use the
following equation to select R2:
= 3 . 94067 M ?
Monitoring Voltages Other than V CC
R 2 = R 1 ×
-V NEG
V REF
The MAX6457–MAX6460 can monitor voltages other than
V CC (Figure 12). Calculate V TRIP as shown in the
Programming the Trip Voltage (V TRIP ) section. The moni-
where V REF = 2.25V and V NEG < 0. V IN + must always
be within the specified operating range: 0 to V CC .
tored voltage (V MON ) is independent of V CC . V IN + must
be within the specified operating range: 0 to V CC .
Pin Configurations
TOP VIEW
OUT 1
GND 2
IN+ 3
MAX6457
5
4
V CC
CLEAR
OUT 1
GND 2
IN+ 3
MAX6458
5
4
V CC
IN-
SOT23
SOT23
OUTA 1
6
V CC
OUT 1
6
V CC
GND 2
IN+ 3
MAX6459
5
4
OUTB
IN-
GND 2
IN+ 3
MAX6460
5
4
REF
IN-
Maxim Integrated
SOT23
SOT23
13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6457UKD3C | 制造商:Maxim Integrated Products 功能描述:HIGH-VOLTAGE LOW-CURRENT VOLTAGE M - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
| MAX6457UKD3C+ | 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR MONITOR 5PIN SOT-23 - Rail/Tube |
| MAX6457UKD3C+T | 功能描述:监控电路 Single Low C/V Voltage 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 |
| MAX6457UKD3C-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 |
| MAX6458UKD0A | 制造商:Maxim Integrated Products 功能描述:HIGH-VOLTAGE LOW-CURRENT VOLTAGE M - Cut Tape Product |
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