HomedatasheetUC3846DWTR

UC3846DWTR Datasheet

PMIC - Voltage Regulators - DC DC Switching Controllers
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Description

The UC3846DWTR family of control ICs provides all of the necessary features to implement fixed frequency, current mode control schemes while maintaining a minimum external parts count. The superior performance of this technique can be measured in improved line regulation, enhanced load response characteristics, and a simpler, easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters, and the ability to parallel “power modules" while maintaining equal current sharing. Protection circuitry includes built-in under-voltage lockout and programmable current limit in addition to soft start capability. A shutdown function is also available which can initiate either a complete shutdown with automatic restart or latch the supply off.Other features include fully latched operation, double pulse suppression, deadline adjust capability, and a ±1% trimmed bandgap reference.The UC3846DWTR features low outputs in the OFF state, while the UC1847 features high outputs in the OFF state. UC3846DWTR Features • Automatic Feed Forward Compensation• Programmable Pulse-by-Pulse Current Limiting• Automatic Symmetry Correction in Push-pull Configuration• Enhanced Load Response Characteristics• Parallel Operation Capability for Modular Power Systems• Differential Current Sense Amplifier with Wide Common Mode Range• Double Pulse Suppression• 500mA (Peak) Totem-pole Outputs• ±1% Bandgap Reference• Under-voltage Lockout• Soft Start Capability• Shutdown Terminal• 500kHZ Operation
Features

Parameters

[{"Name":"Number of Outputs ","Value":"2"},{"Name":"Frequency - Max ","Value":"500kHz "},{"Name":"Duty Cycle ","Value":"50% "},{"Name":"Voltage - Supply ","Value":"7.7 V ~ 40 V "},{"Name":"Operating Temperature ","Value":"0°C ~ 70°C "},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

ROHM
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