- 您现在的位置：买卖IC网 > PDF目录69492 > TL7700CPWE4 (TEXAS INSTRUMENTS INC) 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 PDF资料下载
参数资料
| 型号： | TL7700CPWE4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | GREEN, PLASTIC, TSSOP-8 |
| 文件页数： | 2/20页 |
| 文件大小： | 554K |
| 代理商： | TL7700CPWE4 |
tpo
tpo
RESET
Vhys
VCC
1.5 V
T
Vs’
Output Pulse-Duration Setting
SLVS220E – JULY 1999 – REVISED MARCH 2009........................................................................................................................................................... www.ti.com
A.
The sense voltage, Vs', is different from the SENSE terminal input voltage, Vs. Vs normally is 500 mV for triggering.
Figure 20. VCC-RESET Timing Chart
Constant-current charging starts on the timing capacitor when the sensing-line voltage reaches the TL7700
sense voltage. When the capacitor voltage exceeds the threshold level of the output drive comparator, RESET
changes from a low to a high level. The output pulse duration is the time between the point when the sense-pin
voltage exceeds the threshold level and the point when the RESET output changes from a low level to a high
level. When the TL7700 is used for system power-on reset, the output pulse duration, tpo, must be set longer
than the power rise time. The value of tpo is:
tpo = Ct × 10
5 seconds
Where:
Ct is the timing capacitor in farads
There is a limit on the device response speed. Even if Ct = 0, tpo is not 0, but approximately 5 s to 10 s.
Therefore, when the TL7700 is used as a comparator with hysteresis without connecting Ct, switching speeds
(tr/tf, tpo/tpd, etc.) must be considered.
10
Copyright 1999–2009, Texas Instruments Incorporated
Product Folder Link(s): TL7700
相关PDF资料 |
PDF描述 |
|---|---|
| TL7700CP | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TL7700CDGKT | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TL7700CPWRE4 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TL7700CPWG4 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TL7702AID1/A | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TL7700CPWG4 | 功能描述:监控电路 Voltage 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 |
| TL7700CPWR | 功能描述:监控电路 Supply V Adj 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 |
| TL7700CPWRE4 | 功能描述:监控电路 VOLTAGE 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 |
| TL7700CPWRG4 | 功能描述:监控电路 Voltage 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 |
| TL7700P | 制造商:TI 制造商全称:Texas Instruments 功能描述:SUPPLY-VOLTAGE SUPERVISOR |
发布紧急采购，3分钟左右您将得到回复。