参数资料
| 型号： | TLV803ZDBZT |
| 厂商： | Texas Instruments |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | IC VOLT SUPERVISR 2.25V SOT23-3 |
| 标准包装： | 250 |
| 类型： | 简单复位/加电复位 |
| 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： | 最小为 120 ms |
| 电压 - 阀值： | 2.25V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-236-3，SC-59，SOT-23-3 |
| 供应商设备封装： | SOT-23-3 |
| 包装： | 带卷 (TR) |
SBVS157B – APRIL 2011 – REVISED AUGUST 2011
APPLICATION INFORMATION
V DD TRANSIENT REJECTION
The TLV803 has built-in rejection of fast transients on the V DD pin. The rejection of transients depends on both
the duration and the amplitude of the transient. The amplitude of the transient is measured from the bottom of the
V DD
V IT -
Transient
Amplitude
t w
Duration
Figure 7. Voltage Transient Measurement
The TLV803 does not respond to transients that are fast duration/low amplitude or long duration/small amplitude.
Figure 4 shows the relationship between the transient amplitude and duration needed to trigger a reset. Any
combination of duration and amplitude above the curve generates a reset signal.
RESET DURING POWER UP/DOWN
The TLV803 output is valid when V DD is greater than 1.1 V . Whe n V DD is less than 1.1 V, the output transistor
turns off and becomes high impedance. The voltage on the RESET pin rises to the voltage level connected to the
pull-up resistor. Figure 8 shows a typical waveform for power-up, assuming the RESET pin has a pull-up resistor
connected to the V DD pin.
V DD
V IT - + V HYS
1.1 V
t d
RESET
Valid Output
Figure 8. Power-Up Response
6
Copyright ? 2011, Texas Instruments Incorporated
相关PDF资料 |
PDF描述 |
|---|---|
| TNY280PN | IC OFFLINE SWIT OVP OTP HV 8DIP |
| TOP227Y | IC OFFLINE SWIT PWM OCP HV TO220 |
| TOP250Y | IC OFFLINE SWIT UVLO HV TO220 |
| TOP262LN | IC OFFLINE SWIT PROG OVP 7FESIP |
| TPS2214DBG4 | IC DUAL PCMCIA PWR SW 24-SSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TLV809I50 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3-Pin Supply Voltage Supervisors |
| TLV809I50DBVR | 功能描述:监控电路 3Pin Supply Vltg Sup 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 |
| TLV809I50DBVT | 功能描述:监控电路 3Pin Supply Vltg Sup 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 |
| TLV809I50DBZR | 功能描述:监控电路 3P Supply Vltg Super 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 |
| TLV809I50DBZT | 功能描述:监控电路 3P Supply Vltg Super 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 |
发布紧急采购，3分钟左右您将得到回复。