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參數(shù)資料
| 型號： | L6728H |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | 3 X 3 MM, ROHS COMPLIANT, DFN-10 |
| 文件頁數(shù)： | 5/32頁 |
| 文件大小： | 1213K |
| 代理商： | L6728H |
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Obsolete
Product(s)
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Product(s)
L6728H
Over current protection
Doc ID 15725 Rev 1
13/32
8.1
Over current threshold setting
L6728H allows to easily program a 1st level over current threshold ranging from 50 mV to
550 mV, simply by adding a resistor (ROCSET) between LGATE and GND. 2
nd level threshold
will be automatically set accordingly.
During a short period of time (about 5 ms) following VCC rising over UVLO threshold, an
internal 10 A current (IOCSET) is sourced from LGATE pin, determining a voltage drop
across ROCSET. This voltage drop will be sampled and internally held by the device as 1
st
level over current threshold. The OC setting procedure overall time length is about 5 ms.
Connecting a ROCSET resistor between LGATE and GND, the programmed 1
st level
threshold will be:
the programmed 2nd level threshold will be:
ROCSET values range from 5 kΩ to 55 kΩ.
In case ROCSET is not connected, the device sets the OCP thresholds to the maximum
values: an internal safety clamp on LGATE is triggered as soon as LGATE voltage reaches
600 mV, setting the maximum threshold and suddenly ending OC setting phase.
I
OCth1
I
OCSET
R
OCSET
R
dsON
--------------------------------------------
=
I
OCth2
1.5
I
OCSET
R
OCSET
R
dsON
--------------------------------------------
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L6728 | 1.5 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, DSO10 |
| L6728TR | 1.5 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, DSO10 |
| L6731BTR | 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| L6731B | 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| L6731D | 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6728HTR | 功能描述:電流型 PWM 控制器 SINGLE PHASE PWM CNTRL PWR GOOD RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 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 |
| L6728TR | 功能描述:DC/DC 開關(guān)控制器 Sngl phase PWM controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| L6730 | 功能描述:DC/DC 開關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| L6730_09 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification |
| L6730B | 功能描述:DC/DC 開關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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