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TI UCC28950QPWRQ1RoHS

Manufacturer
TI
MPN
UCC28950QPWRQ1
LCSC Part #
C702433
Packaging
TSSOP-24
Customer #
Key Attributes
Phase-shifted full-bridge controller supporting synchronous rectification
Datasheetpdf iconTI UCC28950QPWRQ1
In-Stock: 101
101 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 4.9182$ 4.92
10+$ 4.1756$ 41.76
30+$ 3.7359$ 112.08
100+$ 3.2897$ 328.97
500+$ 3.0828$ 1541.40
1,000+$ 2.99$ 2990.00
Standard Packaging2000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerTI
PackagingTSSOP-24
Synchronous RectifierYes
FeaturesCycle-by-cycle current limiting;Hiccup current limiting;Adjustable soft-start;Light load efficient mode;Frequency synchronization
Number of Channels1
TopologyFull-Bridge
Operating Voltage8V~17V
Switch tube (built-in/external)External
Output Voltage-
Operating Temperature-40℃~+125℃@(TJ)
Output Current200mA
Frequency - Switching50kHz~1MHz
Output Type-
Function-
Quiescent Current5mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2000
Sales UnitPiece

Introduction

AI Translation

The UCC28950-Q1 enhanced phase-shift controller is based on the improved industrial standard UCCx895 phase-shift controller product series. The improvements made provide the best efficiency among similar products in current high-efficiency power supply systems. The UCC28950-Q1 performs advanced control of the full bridge while effectively controlling the synchronous rectifier output stage. The primary-side signal allows programmable delay to ensure ZVS operation over a wide range of load currents and input voltages, while the load current naturally adjusts the secondary-side switching delay of the synchronous rectifier, thereby greatly improving the overall system efficiency. The UCC28950-Q1 also provides multiple light-load management features, including burst mode and dynamic SR on/off control when entering and exiting discontinuous current mode (DCM) operation, thus ensuring that ZVS operation is extended to lighter loads. In addition, the UCC28950-Q1 supports voltage mode control occurring together with peak current, a programmable switching frequency of up to 1 MHz, and a wide set of protection features including cycle-by-cycle current limit, under-voltage lockout (UVLO), and thermal shutdown. It facilitates the arrangement of 90-degree phase-shifted interleaved synchronous operation between two converters. The UCC28950-Q1 is available in a thin shrink small outline package (TSSOP)-24.

Features

AI Translation
  • Qualified for automotive applications with AEC-Q100 results:
    • Device temperature grade 1: ambient operating temperature range of -40°C to 125°C
    • Device human body model (HBM) ESD classification level H2
    • Device charged device model (CDM) ESD classification level C3B
  • Enhanced wide-range resonant ZVS capability
  • Direct SR control
  • Light-load efficiency management including:
    • Burst mode operation
    • DCM with dynamic SR switching control supporting programmable threshold
    • Programmable adaptive dead time
  • Average or peak current mode control with programmable slope compensation and voltage mode control support
  • Closed-loop soft-start and enable functionality
  • Programmable switching frequency up to 1MHz (±3%) with bidirectional synchronization support
  • Cycle-by-cycle current limit protection with DCM support
  • 150μA startup current
  • VDD UVLO wide temperature range, -40°C to 125°C

Applications

AI Translation
  • Phase-shifted full-bridge converters
  • Industrial power systems
  • High-density power architectures
  • Solar inverters and electric vehicles