- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄361030 > LM5026SDX (NATIONAL SEMICONDUCTOR CORP) Active Clamp Current Mode PWM Controller PDF資料下載
參數(shù)資料
| 型號(hào)： | LM5026SDX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Active Clamp Current Mode PWM Controller |
| 中文描述： | 3 A SWITCHING CONTROLLER, 660 kHz SWITCHING FREQ-MAX, DSO16 |
| 封裝： | 5 X 5 MM, EXPOSED PAD, LLP-16 |
| 文件頁數(shù)： | 18/23頁 |
| 文件大?。?/td> | 936K |
| 代理商： | LM5026SDX |
Applications Information
(Continued)
HICCUP MODE CURRENT LIMIT RESTART (RES)
The basic operation of the hiccup mode current limit restart
is described in the functional description. The delay time to
restart is programmed with the selection of the RES pin
capacitor C
RES
as illustrated in
Figure 7
. In the case of
continuous cycle-by-cycle current limit detection at the CS
pin, the time required for C
RES
to reach the 2.5V hiccup
mode threshold is:
For example, if C
RES
= 0.01 μF the time t1 is approximately
2.5 ms.
The cool down time, t2 is set by the soft-start capacitor (C
SS
)
and the internal 1 μA SS current source, and is equal to:
If C
SS
= 0.01 μF, t2 is
≈
14 ms.
The soft-start time t3 is set by the internal 50 μA current
source, and is equal to:
20147926
FIGURE 15. Current Sense Using a Current Sense Transformer
20147927
FIGURE 16. Current Sense Using a Source Sense Resistor (R1)
L
www.national.com
18
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM5030 | 100V Push-Pull Current Mode PWM Controller |
| LM5030MM | 100V Push-Pull Current Mode PWM Controller |
| LM5030MMX | 100V Push-Pull Current Mode PWM Controller |
| LM556 | Dual Timer |
| LM556ICN | Analog Timer Circuit |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM5026SDX/NOPB | 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| LM5027 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Voltage Mode Active Clamp Controller |
| LM5027A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Evaluation Board evaluation board is designed to provide |
| LM5027A-EVAL/NOPB | 功能描述:電源管理IC開發(fā)工具 LM5027A EVAL BRD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LM5027AMH/NOPB | 功能描述:電壓模式 PWM 控制器 Active Clamp Pwm W/3A Sr Drv RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。