參數(shù)資料
型號(hào)： PWM5031
廠商： Aeroflex Inc.
英文描述： RadHard High Speed PWM Controller
中文描述： RadHard高速PWM控制器
文件頁(yè)數(shù)： 12/17頁(yè)
文件大?。?/td> 620K
代理商： PWM5031
12
SCD5031 Rev B
OUTPUT DRIVE
Dual push-pull outputs OutA and OutB are provided for driving off chip switches. The output stages are identical:
◆
Totem Pole configuration
◆
Break-before-make switching to prevent harmful cross-conduction spikes
◆
Separate positive and negative supply connections to decouple power stage and sensitive logic
◆
Near rail-to-rail voltage swing
◆
±1A maximum peak current capability (capacitive load)
The outputs have two modes of control depending on whether the 50% toggle option is selected. In the case where the
50% pin is logic low, the outputs are in-phase with each other and the duty cycle is free to take on any value up to 100%.
However, when the 50% pin is asserted high (logic ''1''), the outputs switch from the in-phase condition to the logical
complement (out-of-phase) of each other and the duty cycle is limited to a maximum of 50%.
AUXILIARY AMPLIFIER
The chip includes an uncommitted op-amp with independent shutdown feature for use in any user-defined application.
Some possibilities are:
◆
Signal conditioning of an isolated configuration feedback voltage
◆
Implementation of more sophisticated compensation networks for control loop optimization
The Auxiliary amplifier has a unity gain bandwidth greater than 1MHz and an open loop gain greater than 100dB. The
ENAUX pin is active high such that a logic ''1'' enables the amplifier and logic ''0'' disables it. The amplifier has near
rail-to-rail capability on both the input and output.
FIGURE 8 – Output Saturation Characteristics at +25°C
Voltage
V
1
10
.25
.20
.15
.10
0
.30
100
Current mA
.05
Sink
Source
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PWM5031-7 制造商:AEROFLEX 制造商全稱:AEROFLEX 功能描述:RadHard High Speed PWM Controller
PWM5031-I 制造商:AEROFLEX 制造商全稱:AEROFLEX 功能描述:RadHard High Speed PWM Controller
PWM5031-S 制造商:AEROFLEX 制造商全稱:AEROFLEX 功能描述:RadHard High Speed PWM Controller
PWM505 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
PWM-50-59 制造商:Brady Corporation 功能描述:REFILL PAGES - LEGEND: 50-59
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