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Product Detailed Parameters
- Description：IC REG CTRLR MULT TOP 8TSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Applications：PWM Controller
- Voltage - Input：-0.3V ~ 6.3V
- Voltage - Supply：3.6V ~ 11V
- Current - Supply：500 µA
- Operating Temperature：-40°C ~ 125°C (TA)
- Grade：Automotive
- Qualification：AEC-Q100
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：8-TSSOP
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Overview
The UCC2803PW is a low-power BiCMOS current-mode PWM controller manufactured by Texas Instruments. It operates within a supply voltage range of 3.6V to 12V and supports Boost, Flyback, and Forward topologies. The device features a fixed switching frequency of 1 MHz with a maximum duty cycle of 100%. It provides a peak output drive current of 1 A and includes internal compensation for stability. The component functions across an operating temperature range of -40°C to +85°C and is housed in an 8-pin TSSOP package.
Feature Summary
- Current-mode control architecture for simplified loop compensation
- Integrated oscillator with fixed high-frequency operation
- High-current push-pull output driver stage
- Internal soft-start circuitry for controlled startup
Applications
- Low-power AC-DC adapters
- Flyback converters for consumer electronics
- Forward converter power supplies
- Battery chargers
Procurement Notes
Verify the specific suffix against official datasheets to confirm package type and tape-and-reel specifications. Ensure the ordering part number matches the required moisture sensitivity level and industrial temperature grade. Cross-reference manufacturer documentation to validate RoHS compliance status before procurement.
Selection Notes
Select this component for designs requiring a fixed 1 MHz switching frequency to minimize passive component size. The 1 A output drive capability supports direct gate driving of small MOSFETs without external drivers. Consider the TSSOP-8 footprint constraints during PCB layout planning.
Part Context
This device belongs to the UCC280x series of low-power PWM controllers. It shares functional similarities with the UCC2803N but utilizes a surface-mount TSSOP package instead of through-hole PDIP. The series is designed for cost-sensitive applications where moderate efficiency and compact form factors are prioritized.
Replacement Considerations
UCC2803PWTR: Identical electrical characteristics with reel packaging. UCC2803QDREP: Automotive-grade variant with extended temperature range and qualified reliability.
