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参数资料
| 型号： | MAX6894ETI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/19页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCE/SUPERVISOR 28TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 类型： | 序列发生器 |
| 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： | 可调节/可选择 |
| 电压 - 阀值： | 可调节/可选择 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 管件 |
Pin-Selectable, Octal/Hex/Quad, Power-Supply
Sequencers/Supervisors
Pin Description (continued)
MAX6892
PIN
MAX6893
MAX6894
NAME
FUNCTION
Threshold Selection Input 1. Logic input to select desired thresholds. Connect
14
12
12
TH1
TH1 to GND or DBP. See Table 2 for available thresholds. Input has no internal
pullup or pulldown.
Threshold Selection Input 2. Logic input to select desired thresholds. Connect
15
13
13
TH2
TH2 to GND or DBP. See Table 2 for available thresholds. Input has no internal
pullup or pulldown.
Threshold Selection Input 3. Logic input to select desired thresholds. Connect
16
14
14
TH3
TH3 to GND or DBP. See Table 2 for available thresholds. Input has no internal
pullup or pulldown.
Threshold Selection Input 4. Logic input to select desired thresholds. Connect
17
15
15
TH4
TH4 to GND or DBP. See Table 2 for available thresholds. Input has no internal
pullup or pulldown.
Watchdog Timeout Adjust Input. Connect SWT to V CC to select the default
watchdog timeout period. Connect an external capacitor between SWT and
18
16
16
SWT
GND to adjust the watchdog timeout period. The adjustable timeout period is
calculated by t WP = 4.348E6 x C SWT (t WP in seconds and C SWT in Farads).
Disable the watchdog timer by connecting SWT to GND.
Reset Timeout Adjust Input. Connect SRT to V CC to select the default reset
19
17
17
SRT
timeout period. Connect an external capacitor between SRT and GND to adjust
the reset timeout period. The adjustable timeout period is calculated by t RP =
4.348E6 x C SWT (t RP in seconds and C SRT in Farads).
Active-Low, PG_ Enable Input. Pull ENABLE high to force all PG_ outputs low.
20
18
18
ENABLE
PG_ outputs remain asserted for their timeout period when ENABLE is
driven/pulled low. ENABLE is internally pulled down to GND through a 10μA
current sink.
Internal Supply Voltage. Bypass V CC to GND with a 1μF capacitor as close to
the device as possible. V CC supplies power to the internal circuitry. V CC is
21
19
19
V CC
internally powered from the highest of the monitored IN2–IN5 voltages. Do not
use V CC to supply power to external circuitry. To externally supply V CC, see the
Powering the MAX6892/MAX6893/MAX6894 section.
Digital Bypass Voltage. DBP supplies power to the output stages. Bypass DBP
22
20
20
DBP
to GND with a 1μF capacitor as close to the device as possible. Do not use
DBP to supply power to external circuitry.
Input Voltage 8. Select undervoltage threshold using TH0–TH4. See Table 2.
23
—
—
IN8
For improved noise immunity, bypass IN8 to GND with a 0.1μF capacitor as
close to the device as possible.
Input Voltage 7. Select undervoltage threshold using TH0–TH4. See Table 2.
24
—
—
IN7
For improved noise immunity, bypass IN7 to GND with a 0.1μF capacitor as
close to the device as possible.
8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6894ETI+ | 功能描述:监控电路 Pin-Selectable Quad Power Supply Sequenc 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 |
| MAX6894ETI+T | 功能描述:监控电路 Pin-Selectable Quad Power Supply Sequenc 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 |
| MAX6894ETI-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 |
| MAX6895AALT | 制造商:Maxim Integrated Products 功能描述:ULTRA-SMALL ADJUSTABLE SEQUENCING/ - Rail/Tube |
| MAX6895AALT/GH9 | 制造商:Maxim Integrated Products 功能描述:ULTRA-SMALL, ADJUSTABLE SEQUENCING/SUPERVISORY CIRCUITS - Rail/Tube |
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