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| 型号： | MAX6897AAZT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/15页 |
| 文件大小： | 0K |
| 描述： | IC SEQ/SUPERVISORY CIRC TSOT23-6 |
| 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： | 高有效 |
| 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： | SOT-23-6 细型，TSOT-23-6 |
| 供应商设备封装： | TSOT-23-6 |
| 包装： | 标准包装 |
| 其它名称： | MAX6897AAZT+TDKR |
MAX6895–MAX6899
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
Table 1. MAX6895/MAX6897 Output
ENABLE (MAX6895)
IN
ENABLE
OUT
IN
ENABLE (MAX6899)
V CC
V IN < V TH
V IN < V TH
Low
High
Low
Low
0.5V
LOGIC
OUT
V IN > V TH
Low
Low
OUT = V CC
V IN > V TH
High
OUT = high
impedance
(MAX6897)
250nA
1.0V
Table 2. MAX6896/MAX6898 Output
MAX6895
MAX6899
IN
V IN < V TH
ENABLE
Low
OUT
OUT = V CC (MAX6896)
OUT = high impedance
(MAX6898)
CDELAY
GND
V IN < V TH
High
OUT = V CC (MAX6896)
OUT = high impedance
(MAX6898)
Figure 1. MAX6895/MAX6899 Functional Diagram
V IN > V TH
Low
Low
OUT = V CC (MAX6896)
Detailed Description
V IN > V TH
High
OUT = high impedance
The MAX6895–MAX6899 is a family of ultra-small, low-
power, sequencing/supervisory circuits. These devices
provide adjustable voltage monitoring for inputs down to
(MAX6898)
Table 3. MAX6899 Output
0.5V. They are ideal for use in power-supply sequenc-
ing, reset sequencing, and power-switching applica-
tions. Multiple devices can be cascaded for complex
sequencing applications.
Voltage monitoring is performed through a high-imped-
ance input (IN) with an internally fixed 0.5V threshold.
IN
V IN < V TH
V IN < V TH
V IN > V TH
V IN > V TH
ENABLE
Low
High
Low
High
OUT
Low
Low
High
Low
When the voltage at IN falls below 0.5V or when the
enable input is deasserted (ENABLE = low or ENABLE =
high), the output deasserts (OUT goes low or OUT goes
high). When V IN rises above 0.5V and the enable input is
asserted (ENABLE = high or ENABLE = low), the output
asserts (OUT goes high or OUT goes low) after a capaci-
tor-programmable time delay.
With V IN above 0.5V, the enable input can be used to
turn the output on or off. After the enable input is assert-
ed, the output turns on with a capacitor-programmable
delay period (A version) or with a 150ns propagation
delay (P version). Tables 1, 2, and 3 detail the output
state depending on the various input and enable condi-
tions.
6
Supply Input (V CC )
The device operates with a V CC supply voltage from
1.5V to 5.5V. To maintain a 1.8% accurate threshold,
V CC must be above 1.5V. When V CC falls below the
UVLO threshold, the output deasserts. When V CC falls
below 1.2V the output state cannot be determined. For
noisy systems, connect a 0.1μF ceramic capacitor from
V CC to GND as close to the device as possible. For the
push-pull active-high output option, a 100k Ω external
pulldown resistor to ground ensures the correct logic
state for V CC down to 0.
Maxim Integrated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6897PALT | 制造商:Maxim Integrated Products 功能描述:ULTRA-SMALL ADJUSTABLE SEQUENCING/ - Rail/Tube |
| MAX6897PALT+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR ADJV 10UA 6PIN UDFN - Rail/Tube |
| MAX6897PALT+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 |
| MAX6897PALT-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 |
| MAX6897PAZT+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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