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High Performance. Current Mode Controllers. Also included are protective features consisting of input and. The UCXA is tailored for. CASE CASE A. Compensation 1.
Voltage Feedback 2. Current Sense 3. Top View. Voltage Feedback 3. Current Sense 5. See detailed ordering and shipping information in the package. See general marking information in the device marking. V ref. GND 5 9. Figure 1. Simplified Block Diagram. Total Power Supply and Zener Current. Output Current, Source or Sink Note 1. Output Energy Capacitive Load per Cycle. Current Sense and Voltage Feedback Inputs. Error Amp Output Sink Current.
Power Dissipation and Thermal Characteristics. D Suffix, Plastic Package. N Suffix, Plastic Package. Operating Junction Temperature.
Operating Ambient Temperature. Storage Temperature Range. Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit. If these limits are exceeded, device functional operation is not implied,. Maximum Package power dissipation limits must be observed. Download UCA Datasheet. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.
Maximum ratings applied to the device are individual stress limit values not normal operating conditions and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected.
UC3843A Controllers. Datasheet pdf. Equivalent
Current Mode PWM Controller