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参数资料
| 型号： | MAX16057ATT45+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/17页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR P-P 4.5V 6-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 推挽式，图腾柱 |
| 复位： | 低有效 |
| 复位超时： | 可调节/可选择 |
| 电压 - 阀值： | 4.5V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WDFN 裸露焊盘 |
| 供应商设备封装： | 6-TDFN 裸露焊盘（3x3） |
| 包装： | 带卷 (TR) |
MAX16056–MAX16059
125nA Supervisory Circuits with Capacitor-
Adjustable Reset and Watchdog Timeouts
Pin Description
PIN
MAX16056/
MAX16058
MAX16057/
MAX16059
NAME
FUNCTION
Push-Pull or Open-Drain Reset Output. RESET asserts whenever V CC drops below the
selected reset threshold voltage (V TH ) or manual reset is pulled low. RESET remains low
1
1
RESET
for the reset timeout period after all reset conditions are deasserted, and then goes high.
The watchdog timer triggers a reset pulse (t RP ) whenever a watchdog fault occurs
(MAX16056/MAX16058).
2
2
GND
Ground
Watchdog Timeout Input. Connect a capacitor between SWT and GND to set the basic
3
—
SWT
watchdog timeout period (t WD ). Determine the period by the formula t WD = Floor[C SWT x
5.15 x 10 6 /6.4ms] x 6.4ms + 3.2ms (Note 6) with t WD in seconds and C SWT in Farads, or
use Table 2. Extend the basic watchdog timeout period by using the WDS input. Connect
SWT to ground to disable the watchdog timer function. The value of the capacitor must be
between 2275pF and 0.54μF to have a valid watchdog timeout period.
Manual-Reset Input. Drive MR low to manually reset the device. RESET remains asserted
4
3
MR
for the reset timeout period after MR is released. There is no internal pullup on MR . MR
must not be left unconnected. Connect MR to V CC if not used.
Reset Timeout Input. Connect a capacitor from SRT to GND to select the reset timeout
5
4
SRT
period. Determine the period as follows: t RP = 5.15 x 10 6 x C SRT with t RP in seconds and
C SRT in Farads, or use Table 2. The value of the capacitor must be between 39pF and
4.7μF.
Watchdog Input. A falling transition must occur on WDI within the selected watchdog
6
—
WDI
timeout period or a reset pulse occurs. The watchdog timer clears when a falling transition
occurs on WDI or whenever RESET is asserted. Connect SWT to ground to disable the
watchdog timer function.
Watchdog Select Input. WDS selects the watchdog timeout mode. Connect WDS to
7
—
WDS
ground to select normal mode. The watchdog timeout period is t WD . Connect WDS to V CC
to select extended mode, multiplying the basic timeout period (t WD ) by a factor of 128. A
change in the state of WDS clears the watchdog timer.
8
—
—
6
5
—
V CC
N.C.
EP
Supply Voltage. V CC is the power-supply input and the input for fixed threshold V CC
monitor. For noisy systems, bypass V CC with a 0.1μF capacitor to GND.
No Connection. Not internally connected.
Exposed Pad. Connect EP to GND or leave unconnected.
Note 6: Floor: take the integral value.
6
Maxim Integrated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16057ATT46+T | 功能描述:监控电路 NanoPwr w/Cap-Adj Reset and Watchdog 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 |
| MAX16058ATA16+T | 功能描述:监控电路 NanoPwr w/Cap-Adj Reset and Watchdog 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 |
| MAX16058ATA17+T | 功能描述:监控电路 NanoPwr w/Cap-Adj Reset and Watchdog 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 |
| MAX16058ATA18+T | 功能描述:监控电路 NanoPwr w/Cap-Adj Reset and Watchdog 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 |
| MAX16058ATA19+T | 功能描述:监控电路 NanoPwr w/Cap-Adj Reset and Watchdog 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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