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| 型号： | MAX6898PALT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/15页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCE/SUPERVISOR 6UDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 类型： | 序列发生器 |
| 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： | 可调节/可选择 |
| 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： | 6-WFDFN |
| 供应商设备封装： | 6-uDFN（1.5x1.0） |
| 包装： | 标准包装 |
| 其它名称： | MAX6898PALT+TDKR |
MAX6895–MAX6899
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
Monitor Input (IN)
Connect the center point of a resistive divider to IN to
monitor external voltages (see R1 and R2 of the Typical
Operating Circuit). IN has a rising threshold of V TH =
0.5V and a falling threshold of 0.495V (5mV hysteresis).
When V IN rises above V TH and ENABLE is high (or
ENABLE is low) OUT goes high ( OUT goes low) after
the programmed t DELAY period. When V IN falls below
0.495V, OUT goes low ( OUT goes high) after a 16μs
delay. IN has a maximum input current of 15nA so
large-value resistors are permitted without adding sig-
nificant error to the resistive divider.
Adjustable Delay (CDELAY)
When V IN rises above V TH with ENABLE high ( ENABLE
low), the internal 250nA current source begins charging
an external capacitor connected from CDELAY to GND.
When the voltage at CDELAY reaches 1V, the output
V CC
V UVLO
asserts (OUT goes high or OUT goes low). When the
output asserts, C CDELAY is immediately discharged.
Adjust the delay (t DELAY ) from when V IN rises above
V TH (with ENABLE high or ENABLE low) to OUT going
high ( OUT going low) according to the equation:
t DELAY = C CDELAY x 4.0 x 10 6 + 40μs
where C CDELAY is the external capacitor from CDELAY
to GND.
For adjustable delay devices (A version), when V IN >
0.5V and ENABLE goes from low to high ( ENABLE
goes from high to low) the output asserts after a t DELAY
period. For nonadjustable delay devices (P version)
there is a 1μs propagation delay from when the enable
input is asserted to when the output asserts. Figures 2
through 5 show the timing diagrams for the adjustable
and fixed delay versions, respectively.
IN
V TH
V TH
t < t PROPA
ENABLE
t > t PW
OUT
t PROPA
Figure 2. MAX6895A/MAX6897A Timing Diagram
Maxim Integrated
t DL
t DELAY
t OFF
t PROPA
7
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相关代理商/技术参数 |
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| MAX6898PAZT+T | 功能描述:监控电路 Ultra-small adjustable sequencing/supervisioin circuits 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 |
| MAX6899AALT+ | 制造商:Maxim Integrated Products 功能描述:MAXIM MAX6899AALT+ PROCESSOR SUPERVISORS - Tape and Reel 制造商:Maxim Integrated Products 功能描述:Maxim MAX6899AALT+ Processor Supervisors |
| MAX6899AALT+T | 功能描述:监控电路 Adjustable Sequencer/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 |
| MAX6899AAZT+ | 制造商:Maxim Integrated Products 功能描述:MAXIM MAX6899AAZT+, SUPERVISORS - Tape and Reel 制造商:Maxim Integrated Products 功能描述:Maxim MAX6899AAZT+, Supervisory Circuit Voltage-Monitoring 1.5V-5.5V 6-pin TSOT23 |
| MAX6899AAZT+T | 功能描述:监控电路 Adjustable Sequencer/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 |
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