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参数资料
| 型号： | MAX6735KASYD3+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/15页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU W/WD SOT23-8 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 多压监控器 |
| 监视电压数目： | 3 |
| 输出： | 推挽式，图腾柱 |
| 复位： | 低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 2.188V，2.925V，可调 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-8 |
| 供应商设备封装： | SOT-23-8 |
| 包装： | 带卷 (TR) |
MAX6730–MAX6735
Single-/Dual-/Triple-Voltage μP Supervisory
Circuits with Independent Watchdog Output
Pin Description
PIN
MAX6730
MAX6731
MAX6732
MAX6733
MAX6734
MAX6735
NAME
FUNCTION
Active-Low Reset Output. The MAX6730/MAX6732/MAX6734 provide an open-drain
output. The MAX6731/MAX6733/MAX6735 provide a push-pull output. RST asserts
1
1
1
RST
low when any of the following conditions occur: V CC 1 or V CC 2 drops below its
preset threshold, RSTIN drops below its reset threshold, or MR is driven low. Open-
drain versions require an external pullup resistor.
2
2
2
GND
Ground
Active-Low Watchdog Output. The MAX6730/MAX6732/MAX6734 provide an open-
drain WDO output. The MAX6731/MAX6733/MAX6735 provide a push-pull WDO
output. WDO asserts low when no low-to-high or high-to-low transition occurs on
3
3
4
WDO
WDI within the watchdog timeout period (t WD ) or if an undervoltage lockout
condition exists for V CC 1, V CC 2, or RSTIN. WDO deasserts without a timeout period
when V CC 1, V CC 2, and RSTIN exceed their reset thresholds, or when the manual
reset input is asserted. Open-drain versions require an external pullup resistor.
Active-Low Manual Reset Input. Drive MR low to force a reset. RST remains
4
—
5
MR
asserted as long as MR is low and for the reset timeout period after MR releases
high. MR has a 50k Ω pullup resistor to V CC 1; leave MR open or connect to V CC 1 if
unused.
Watchdog Input. If WDI remains high or low for longer than the watchdog timeout
period, the internal watchdog timer expires and the watchdog output asserts low.
The internal watchdog timer clears whenever RST asserts or a rising or falling edge
5
5
3
WDI
on WDI is detected. The watchdog has an initial watchdog timeout period (35s min)
after each reset event and a short timeout period (1.12s min) after the first valid
WDI transition. Leaving WDI unconnected does not disable the watchdog timer
function.
6
—
6
4
8
6
V CC 1
V CC 2
Primary Supply-Voltage Input. V CC 1 provides power to the device when it is greater
than V CC 2. V CC 1 is the input to the primary reset threshold monitor.
Secondary Supply-Voltage Input. V CC 2 provides power to the device when it is
greater than V CC 1. V CC 2 is the input to the secondary reset threshold monitor.
Undervoltage Reset Comparator Input. RSTIN provides a high-impedance
comparator input for the adjustable reset monitor. RST asserts low if the voltage at
—
—
7
RSTIN RSTIN drops below the 626mV internal reference voltage. Connect a resistive
voltage-divider to RSTIN to monitor voltages higher than 626mV. Connect RSTIN to
V CC 1 or V CC 2 if unused.
Maxim Integrated
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6735KASYD4+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 |
| MAX6735KASYD4-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 |
| MAX6735KASYD5+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 |
| MAX6735KASYD5-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 |
| MAX6735KASYD6+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 |
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