DESCRIPTION

The LTC®6992 is a silicon oscillator with an easy-to-use analog voltage-controlled pulse width modulation (PWM) capability. The LTC6992 is part of the TimerBlox® family of versatile silicon timing devices.

FEATURES

■ Pulse Width Modulation (PWM) Controlled by Simple 0V to 1V Analog Input

■ Four Available Options Define Duty Cycle Limits

■ Minimum Duty Cycle at 0 or 5

■ Maximum Duty Cycle at 95 or 100

■ Frequency Range: 3.81Hz to 1MHz

■ Configured with 1 to 3 Resistors

■ <1.7 Maximum Frequency Error

■ PWM Duty Cycle Error < 3.7 Maximum

■ Frequency Modulation (VCO) Capability

■ 2.25V to 5.5V Single Supply Operation

■ 115μA Supply Current at 100kHz

■ 500μs Start-Up Time

■ CMOS Output Driver Sources/Sinks 20mA

■ –55°C to 125°C Operating Temperature Range

■ Available in Low Profile (1mm) SOT-23 (ThinSOT™) and 2mm × 3mm DFN

■ AEC-Q100 Qualified for Automotive Applications

APPLICATIONS

■ PWM Servo Loops

■ Heater Control

■ LED Dimming Control

■ High Vibration, High Acceleration Environments

■ Portable and Battery-Powered Equipment

LTC6993属于集成电路（IC） > 多谐振荡器。亚德诺半导体技术有限公司制造生产的LTC6993多谐振荡器多谐振荡器是简单的双态器件，尽管它们的典型使用方式在很大程度上具有模拟特性，但通常被认为是数字逻辑元器件。单稳型也称为“单发”，具有一种稳定状态；但施加触发信号可使它们离开此状态一段时间，该时间通常由所连接电容器的值来确定。这些器件对于去弹跳开关触头等应用非常有用。非稳型没有稳定状态，在两个状态之间按一定频率持续转换，该频率通常也是由所连接电容器的值来确定。