- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377879 > MB3788 (FUJITSU LTD) RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS PDF資料下載
參數(shù)資料
| 型號(hào)： | MB3788 |
| 廠商： | FUJITSU LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 0.03 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | PLASTIC, SSOP-24 |
| 文件頁(yè)數(shù)： | 6/21頁(yè) |
| 文件大?。?/td> | 750K |
| 代理商： | MB3788 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)當(dāng)前第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)
6
MB3788
3. Protection Functions
(1) Timer and latch-type short-circuit protection circuit
The SCP comparator detects the output voltage levels of two comparators to detect an output short circuit. If the output voltage
of one comparator increases to 2.1 V, the transistor of the timer circuit is turned off and the short circuit protection capacitor
connected externally to the SCP pin (pin 15) starts charging.
The latch circuit turns off the output transistor and simultaneously clears the duty cycle to 0 when the output voltage level of the
comparator does not return to the normal voltage level until the capacitor voltage rises to the base-emitter junction voltage VBE
(
≈
0.65 V) of the transistor. (See How to Set Time Constant for Timer & Latch-Type Short-Circuit Protection Circuit.)
When the protection circuit operates, recycle the power to reset the circuit.
(2) Low input voltage malfunction fail-safe circuit
A transient at power-on, or an instantaneous supply voltage drop can cause a control IC malfunction, which may damage the
system. The low input voltage malfunction fail-safe circuit detects the internal reference voltage level based on the supply voltage
level, resets the latch circuit, turns off the output transistor, clears the duty cycle to 0 and holds the SCP pin (pin 15) at Low level.
All circuits are recovered when the supply voltage is greater than the threshold voltage of the fail-safe circuit.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB3789 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| MB3789PFV | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| MB3790PF | Battery Backup IC |
| MB3790 | DIODE SCHOTTKY SINGLE 25V 200mW 0.32V-vf 200mA-IFM 1mA-IF 2uA-IR SOT-23 3K/REEL |
| MB3790PFT | Battery Backup IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB3789 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:Switching Regulator Controller (Supporting External Synchronization) |
| MB3789PFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:Switching Regulator Controller (Supporting External Synchronization) |
| MB3789PFV-G-BND(E1) | 制造商:Fujitsu 功能描述: |
| MB-379 | 制造商:Maxxtro 功能描述: |
| MB3790 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:Battery Backup IC |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。