UC1834

UC1834-DIE High Efficiency Linear Regulator

1Features 1?EquallyUsableforEitherPositiveorNegative RegulatorDesign ?AdjustableLowThresholdCurrentSense Amplifier ?UndervoltageandOvervoltageFaultAlertWith ProgrammableDelay 2Applications ?WirelessLAN ?ProgrammableLogicController ?MotorControlandDrives

UC1834

高效線性穩(wěn)壓器; ? Minimum VIN - VOUT Less Than 0.5V At 5A Load With External Pass Device\n? Equally Usable For Either Positive or Negative Regulator Design\n? Adjustable Low Threshold Current Sense Amplifier\n? Under And Over-Voltage Fault Alert With Programmable Delay\n? Over-Voltage Fault Latch With 100mA Crowbar Drive Output;

The UC1834 family of integrated circuits is optimized for the design of low input-output differential linear regulators. A high gain amplifier and 200mA sink or source drive outputs facilitate high output current designs which use an external pass device. With both positive and negative precision references, either polarity of regulator can be implemented. A current sense amplifier with a low, adjustable, threshold can be used to sense and limit currents in either the positive or negative supply lines. In addition, this series of parts has a fault monitoring circuit which senses both under and over-voltage fault conditions. After a user defined delay for transient rejection, this circuitry provides a fault alert output for either fault condition. In the over-voltage case, a 100mA crowbar output is activated. An over-voltage latch will maintain the crowbar output and can be used to shutdown the driver outputs. System control to the device can be accommodated at a single input which will act as both a supply reset and remote shutdown terminal. These die are protected against excessive power dissipation by an internal thermal shutdown function.\n\n

UC1834

High Efficiency Linear Regulator

UC1834

High Efficiency Linear Regulator

UC1834-DIE

具有限流器的航天級、5V 至 35V 輸入、400mA、1.5V 輸出線性穩(wěn)壓器; ? 對于正電壓穩(wěn)壓器或負電壓穩(wěn)壓器設(shè)計均適用 \n? 可調(diào)節(jié)低閾值電流感應(yīng)放大器 \n? 具有可編程延遲的欠壓和過壓故障報警功能;

UC1834-DIE 集成電路針對低輸入輸出差分線性穩(wěn)壓器設(shè)計進行了優(yōu)化。 該器件具有高增益放大器和灌電流或拉電流驅(qū)動輸出，有助于實現(xiàn)采用外部導(dǎo)通器件的高輸出電流設(shè)計。 利用精密的正負參考電壓，可實現(xiàn)穩(wěn)壓器的兩種極性。 可使用具有低可調(diào)閾值的電流感應(yīng)放大器來檢測和限制正電源線和負電源線上的電流。此外，UC1834-DIE 還具有一個故障監(jiān)視電路，用于檢測欠壓和過壓故障情況。 經(jīng)過一段用戶定義的瞬態(tài)抑制延遲之后，此電路會針對上述兩種故障情況提供故障報警輸出。 在過壓情況下，會激活快速放電 (crowbar) 輸出。 過壓鎖存器會保持 crowbar 輸出，并且可用于關(guān)斷驅(qū)動器輸出。 可通過單個輸入來調(diào)節(jié)對器件的系統(tǒng)控制，該輸入同時用作電源復(fù)位和遠程關(guān)斷端子。 此類芯片具有內(nèi)部熱關(guān)斷功能，可防止功耗過高。

UC1834-DIE

UC1834-DIE High Efficiency Linear Regulator

1Features 1?EquallyUsableforEitherPositiveorNegative RegulatorDesign ?AdjustableLowThresholdCurrentSense Amplifier ?UndervoltageandOvervoltageFaultAlertWith ProgrammableDelay 2Applications ?WirelessLAN ?ProgrammableLogicController ?MotorControlandDrives

UC1834-SP

具有限流器的航天級 5V 至 35V、400mA、1.5V 輸出線性穩(wěn)壓器; ? Minimum VIN - VOUT Less Than 0.5V At 5A Load With External Pass Device\n? Equally Usable For Either Positive or Negative Regulator Design\n? Adjustable Low Threshold Current Sense Amplifier\n? Under And Over-Voltage Fault Alert With Programmable Delay\n? Over-Voltage Fault Latch With 100mA Crowbar Drive Output;

The UC1834 family of integrated circuits is optimized for the design of low input-output differential linear regulators. A high gain amplifier and 200mA sink or source drive outputs facilitate high output current designs which use an external pass device. With both positive and negative precision references, either polarity of regulator can be implemented. A current sense amplifier with a low, adjustable, threshold can be used to sense and limit currents in either the positive or negative supply lines. In addition, this series of parts has a fault monitoring circuit which senses both under and over-voltage fault conditions. After a user defined delay for transient rejection, this circuitry provides a fault alert output for either fault condition. In the over-voltage case, a 100mA crowbar output is activated. An over-voltage latch will maintain the crowbar output and can be used to shutdown the driver outputs. System control to the device can be accommodated at a single input which will act as both a supply reset and remote shutdown terminal. These die are protected against excessive power dissipation by an internal thermal shutdown function.

UC1834-SP

UC1834-DIE High Efficiency Linear Regulator

1Features 1?EquallyUsableforEitherPositiveorNegative RegulatorDesign ?AdjustableLowThresholdCurrentSense Amplifier ?UndervoltageandOvervoltageFaultAlertWith ProgrammableDelay 2Applications ?WirelessLAN ?ProgrammableLogicController ?MotorControlandDrives

UC1834VTD1

UC1834-DIE High Efficiency Linear Regulator

1Features 1?EquallyUsableforEitherPositiveorNegative RegulatorDesign ?AdjustableLowThresholdCurrentSense Amplifier ?UndervoltageandOvervoltageFaultAlertWith ProgrammableDelay 2Applications ?WirelessLAN ?ProgrammableLogicController ?MotorControlandDrives

UC1834VTD1.A

UC1834-DIE High Efficiency Linear Regulator

1Features 1?EquallyUsableforEitherPositiveorNegative RegulatorDesign ?AdjustableLowThresholdCurrentSense Amplifier ?UndervoltageandOvervoltageFaultAlertWith ProgrammableDelay 2Applications ?WirelessLAN ?ProgrammableLogicController ?MotorControlandDrives