UCC3895N switch controller
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Description:
The UCC3895N is a phase-shifted pulse-width modulation (PWM) controller from Texas Instruments. It is designed for high-efficiency DC-DC power conversion applications. The UCC3895N provides all the necessary functions to implement a phase-shifted full-bridge power converter. This controller is suitable for applications that require efficient, high-power conversion, such as power supplies for servers, telecom equipment, and industrial systems.
Key Features:
- Phase-shifted PWM control
- High efficiency
- Adaptive zero-voltage switching (ZVS)
- Programmable dead time
- Overcurrent protection
- Soft-start capability
- Synchronizable to external clock
- Voltage-mode control with feed-forward
- Supply Voltage (Vcc): 10V to 15V
- Operating Temperature Range: -40°C to +125°C
- Output Voltage: 0V to Vcc
- Output Current: ±1A peak
- Oscillator Frequency: 100 kHz to 1 MHz
- Duty Cycle: 0% to 100%
- Soft-Start Time: Programmable
- Dead Time Control: Programmable
- Overcurrent Threshold: Programmable
- Package Type: DIP-20 (Dual Inline Package)
- Dimensions: 24.33 mm x 6.35 mm x 3.3 mm
- Weight: 1.27 g (approx.)
- High-efficiency DC-DC power converters
- Telecom power supplies
- Industrial power supplies
- Server power supplies
- Motor drives
- Uninterruptible power supplies (UPS)
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment