最新无码a∨在线观看,一本av高清一区二区三区,亚洲熟妇色l20p,宅男噜噜69av,中出あ人妻熟女中文字幕

TL2842B

具有 16V/10V UVLO 和 100% 占空比、溫度范圍為 -40°C 至 85°C 的 30V、0.2A 高性能 500KHz 電流模式 PWM; ? Low Start-Up Current (;

The TL284xB and TL384xB series of control integrated circuits provide the features that are necessary to implement off-line or dc-to-dc fixed-frequency current-mode control schemes, with a minimum number of external components. Internally implemented circuits include an undervoltage lockout (UVLO) and a precision reference that is trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator that also provides current-limit control, and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state. The TL284xB and TL384xB series are pin compatible with the standard TL284x and TL384x with the following improvements. The start-up current is specified to be 0.5 mA (max), while the oscillator discharge current is trimmed to 8.3 mA (typ). In addition, during undervoltage lockout conditions, the output has a maximum saturation voltage of 1.2 V while sinking 10 mA (VCC = 5 V). Major differences between members of these series are the UVLO thresholds and maximum duty-cycle ranges. Typical UVLO thresholds of 16 V (on) and 10 V (off) on the TLx842B and TLx844B devices make them ideally suited to off-line applications. The corresponding typical thresholds for the TLx843B and TLx845B devices are 8.4 V (on) and 7.6 V (off). The TLx842B and TLx843B devices can operate to duty cycles approaching 100%. A duty-cycle range of 0% to 50% is obtained by the TLx844B and TLx845B by the addition of an internal toggle flip-flop, which blanks the output off every other clock cycle.The TL284xB-series devices are characterized for operation from -40°C to 85°C. The TL384xB-series devices are characterized for operation from 0°C to 70°C.

TL2842B

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS

TL2842B

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS

TL2842BD

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS

TL2842BD

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS

TL2842BD

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS

TL2842BD-8

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS

TL2842BD-8

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS

TL2842BD-8

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS

TL2842BDG4-8

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS