SE555-SP - QML V 类精密定时器

SE555-SP是TI德州仪器公司的一款无产品，SE555-SP是QML V 类精密定时器，本站介绍了SE555-SP的封装应用图解、特点和优点、功能等，并给出了与SE555-SP相关的TI元器件型号供参考。

SE555-SP - QML V 类精密定时器 - 无 - 定时器 - 德州仪器

产品描述

产品特性

Timing From Microseconds to Hours
Astable or Monostable Operation
Adjustable Duty Cycle
TTL-Compatible Output Can Sink or Source up to 100 mA
QML-V Qualified, SMD 5962-98555
Military Temperature Range (–55°C to 125°C)
Rad-Tolerant: 25 kRad (Si) TID(1)

(1) Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad/sec. Radiation Lot Acceptance Testing is available - contact factory for details.

DESCRIPTION/ORDERING INFORMATION

The SE555 is a precision timing circuit capable of producing accurate time delays or oscillation. In the time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the astable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor.

The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by use of the control-voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set, and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset, and the output goes low. When the output is low, a low-impedance path is provided between discharge (DISCH) and ground.

The output circuit is capable of sinking or sourcing current up to 100 mA. Operation is specified for supplies of 4.5V to 16.5V. With a 5-V supply, output levels are compatible with TTL inputs.

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