UC3834 Series

36-V, linear voltage regulator controller with positive & negative reference voltages

Catalog(2 parts)

Part	Supplier Device Package	Package / Case▲▼	Package / Case	Mounting Type	Operating Temperature▲▼	Operating Temperature▲▼	Type	Current - Supply▲▼	Number of Outputs▲▼	Voltage - Input▲▼	Voltage - Input▲▼
Texas Instruments UC3834NG4 Linear Regulator Controller IC Positive Fixed and Negative Fixed 1 Output 16-PDIP	16-PDIP	0.007619999814778566 m, 0.007619999814778566 m	16-DIP	Through Hole	70 °C	0 °C	Positive Fixed and Negative Fixed	0.005499999970197678 A	1 ul	5 V	35 V
Texas Instruments UC3834N Linear Regulator Controller IC Positive Fixed and Negative Fixed 1 Output 16-PDIP	16-PDIP	0.007619999814778566 m, 0.007619999814778566 m	16-DIP	Through Hole	70 °C	0 °C	Positive Fixed and Negative Fixed	0.005499999970197678 A	1 ul	5 V	35 V

Key Features

• Minimum VIN- VOUTLess Than 0.5V At 5A Load With External Pass DeviceEqually Usable For Either Positive or Negative Regulator DesignAdjustable Low Threshold Current Sense AmplifierUnder And Over-Voltage Fault Alert With Programmable DelayOver-Voltage Fault Latch With 100mA Crowbar Drive OutputMinimum VIN- VOUTLess Than 0.5V At 5A Load With External Pass DeviceEqually Usable For Either Positive or Negative Regulator DesignAdjustable Low Threshold Current Sense AmplifierUnder And Over-Voltage Fault Alert With Programmable DelayOver-Voltage Fault Latch With 100mA Crowbar Drive Output

Description

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. 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.