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參數(shù)資料
| 型號： | 5962-0625101KXA |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDSO24 |
| 封裝： | 0.600 X 0.300 INCH, 0.130 INCH HEIGHT, HERMETIC SEALED, CERAMIC, SOP-24 |
| 文件頁數(shù)： | 5/19頁 |
| 文件大?。?/td> | 695K |
| 代理商： | 5962-0625101KXA |
13
SCD5031 Rev F 10/23/06
Aeroflex Plainview
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.
A typical single output forward converter application is shown in Figure 9 to aid in the following operational
description.
During normal operation, the oscillator jumpstarts each switching cycle by resetting the RS latch, causing the output
stage to go high and turn on M1. Current begins to build linearly through T1 and M1 and a proportional voltage is
developed across the small sense resistor Rs. Switching spikes are filtered by C1 and R1, and the resulting sawtooth
waveform is passed into the PWM to serve as the current comparator input. Meanwhile, a portion of the output voltage
is sensed and compared to the PWM’s internal precision 2.5V reference. The difference is then amplified and level
shifted to serve as the comparator threshold. When the voltage on the ISENSE pin exceeds this threshold, the comparator
fires and resets the latch. The output then turns off until the beginning of the next oscillator cycle when the process
repeats.
FIGURE 8 – Output Saturation Characteristics at +25°C
Voltage
110
V
.25
.20
.15
.10
0
.30
100
Current mA
.05
Sink
Source
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 5962-0625101KXC | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDSO24 |
| 5962-0625101KXX | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDSO24 |
| 5962-0625102KYC | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDFP24 |
| 5962-0625101KXA | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDSO24 |
| 5962-0625102KXC | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDSO24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 5962-0625501QHC | 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述: |
| 5962-0625501QXC | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:350MHz Fixed Gain Amplifiers with Enable |
| 5962-0625601QXC | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:1.4GHz Current Feedback Amplifiers with Enable |
| 5962-0625602QXC | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:1.4GHz Current Feedback Amplifiers with Enable |
| 5962-0720101M3A | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High-speed Complex Programmable Logic Device |
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