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Product Detailed Parameters
- Description：IC PFC CTRLR CCM 200KHZ 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Mode：Continuous Conduction (CCM)
- Frequency - Switching：200kHz
- Voltage - Supply：14.5V ~ 30V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Current - Startup：400 µA
- Grade：-
- Qualification：-
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Overview
The UC3852DTR is a high-power-factor preregulator controller manufactured by Texas Instruments. It integrates current-mode PWM control with a multiplier for power factor correction. The device operates in a 16-pin SOIC package. Key electrical parameters include a switching frequency of 100 kHz, an input voltage range of 10 V to 40 V, and a maximum output drive capability suitable for external MOSFETs. It features soft-start, brown-out protection, and cycle-by-cycle current limiting.
Feature Summary
- Integrates a precision analog multiplier for high power factor correction
- Includes current-mode PWM controller with cycle-by-cycle current limiting
- Features built-in soft-start and brown-out protection circuits
Applications
- High power-factor preregulators for AC-DC converters
- Universal input power supplies
- Offline switch-mode power supply front ends
Procurement Notes
Verify the specific suffix 'DTR' indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official TI documentation as environmental declarations may vary by production batch. Ensure the supplier provides valid traceability data for quality assurance purposes.
Selection Notes
Select this component for designs requiring integrated PFC and PWM control in a single IC. It is suitable for applications needing high efficiency and low harmonic distortion. Consider thermal management requirements due to internal power dissipation during operation.
Part Context
This part belongs to the UCx85x series of power factor correction controllers from Texas Instruments. It is designed to simplify the design of compliant power supplies by combining PFC and PWM functions. The DTR suffix denotes surface-mount reel packaging for automated assembly.
Replacement Considerations
UC3852DR
FAQ
What modulation technique does the UC3852DTR support?
It supports current-mode PWM with cycle-by-cycle current limiting.
Does the UC3852DTR include soft-start functionality?
Yes, it includes a built-in soft-start circuit to limit inrush current.
