参数资料
型号: NA555S-13
厂商: Diodes Inc
文件页数: 2/14页
文件大小: 0K
描述: IC OSC MONO TIMING SO8
特色产品: Precision Timer ICs
标准包装: 1
类型: 555 型,计时器/振荡器(单路)
频率: 500kHz
电源电压: 4.5 V ~ 16 V
电流 - 电源: 13mA
工作温度: -40°C ~ 105°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 标准包装
供应商设备封装: 8-SO
安装类型: 表面贴装
其它名称: NA555S-13DIDKR
NE555/SA555/NA555
PRECISION TIMERS
NE555/SA555/NA555
Document number: DS35112 Rev. 4 - 2
10 of 14
February 2012
Diodes Incorporated
NEW
PROD
UC
T
Typical Applications Characteristics (cont.)
Pulse Width Modulation
The operation of the timer can be modified by modulating the internal threshold and trigger voltages, which is accomplished
by applying an external voltage (or current) to CONT. Figure 10 shows a circuit for pulse-width modulation. A continuous
input pulse train triggers the monostable circuit, and a control signal modulates the threshold voltage. Figure 11 shows the
resulting output pulse-width modulation. While a sine-wave modulation signal is shown, any wave shape could be used.
Fig 10. Circuit for Pulse width modulation
Fig 11. Pulse width modulation timing diagrams
Pulse Position Modulation
As shown in Figure 12, any of these timers can be used as a pulse-position modulator. This application modulates the
threshold voltage and, thereby, the time delay, of a free-running oscillator. Figure 13 shows a triangular-wave modulation
signal for such a circuit; however, any wave shape could be used.
Fig 12. Circuit for pulse position modulation
Fig 13. Pulse position modulation timing diagrams
相关PDF资料
PDF描述
V28A5M175BF2 CONVERTER MOD DC/DC 5V 75W
D38999/20SG11SN CONN RCPT 11POS WALL MNT W/SCKT
V28A5M175BF CONVERTER MOD DC/DC 5V 75W
V28A5M175BL CONVERTER MOD DC/DC 5V 175W
VI-25B-IW-B1 CONVERTER MOD DC/DC 95V 100W
相关代理商/技术参数
参数描述
NA556 制造商:TI 制造商全称:Texas Instruments 功能描述:DUAL PRECISION TIMERS
NA556D 功能描述:计时器和支持产品 Dual Prec Timers RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
NA556DG4 功能描述:计时器和支持产品 Dual Prec Timers RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
NA556DR 功能描述:计时器和支持产品 Dual Prec Timers RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
NA556DRG4 功能描述:计时器和支持产品 Dual Prec Timers RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel