The TPS3307 family is a series of micropower supply voltage supervisors designed for circuit initialization primarily in DSP and processor-based systems, which require more than one supply voltage.

The product spectrum of the TPS3307-xx is designed for monitoring three independent supply voltages: 3.3V/1.8V/adj, 3.3V/2.5V/adj or 3.3V/5V/adj. The adjustable SENSE input allows the monitoring of any supply voltage >1.25V.

The various supply voltage supervisors are designed to monitor the nominal supply voltage.

During power-on, RESET is asserted when the supply voltage V_DDbecomes higher than 1.1V. Thereafter, the supply voltage supervisor monitors the SENSEn inputs and keeps RESET active as long as SENSEn remain below the threshold voltage V_IT+.

An internal timer delays the return of the RESET output to the inactive state (high) to ensure proper system reset. The delay time, t_{d (typ)} = 200ms, starts after all SENSEn inputs have risen above the threshold voltage V_IT+. When the voltage at any SENSE input drops below the threshold voltage V_IT-, the RESET output becomes active (low) again.

The TPS3307-xx family of devices incorporates a manual reset input, MR. A low level at MR causes RESET to become active. In addition to the active-low RESET output, the TPS3307-xx family includes an active-high RESET output.

The devices are available in either 8-pin MSOP or standard 8-pin SO packages.

The TPS3307-xx devices are characterized for operation over a temperature range of -40°C to +85°C.

德州仪器- 33drthe tps3307 tps3307家庭系列微功耗供电电压is of initialization系统电路设计和DSP primarily for which require基于处理器的系统，一个超过电源电压。

产品tps3307扩频of the the is for XX设计独立的电源监测：三voltages／1.8V 3.3V 3.3V 2.5V adj /，/ / / adj adj 3.3V或5V /。茶茶调感allows监测输入电压1.25V供电of any >。

各种设计的系统电源电压是the to the名义电源电压监视器。

在上电，复位的电源电压asserted is when the vddbecomes高比1.1V电源电压。thereafter，the the森森的投入和keeps主管monitors只要森森主动复位阈值电压+维生素仍below the。

安内部定时器复位输出延迟the Return of the活动（to the proper to确保高）系统复位。the delay time，TD（型）= 200ms后，开始投入到有risen森森above the维生素+阈值电压。在任何输入电压感when the阈值电压维生素C滴below the，the becomes主动复位输出（低）了。

tps3307 devices of the XX家庭incorporates在手动复位输入（低电平，先生。先生成为主动复位的原因。在加成to the主动复位输出低，the tps3307 - 20包括家庭安主动复位输出高。

the devices are available或者8引脚MSOP或在标准的8引脚packages知道。

tps3307 devices are the operation for XX过由该温度范围－40 85°c to +。