TL494CN switching power supply
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Description:
The TL494CN is a versatile PWM (Pulse Width Modulation) control IC designed for use in switching power supplies. It integrates all the necessary components for the control and regulation of a switching power supply, including error amplifiers, an oscillator, a dead-time control comparator, a PWM comparator, and output control circuits. The TL494CN offers precise control over power supply operation, making it ideal for a wide range of power supply designs.
Key Features:
- Wide supply voltage range: 7V to 40V
- Internal oscillator frequency up to 300kHz
- Dual error amplifiers for voltage and current feedback
- Dead-time control for efficient power switching
- Pulse-width modulation for precise output control
- Push-pull or single-ended output configuration
- High-performance and low power consumption
- On-chip 5V reference voltage regulator
- Built-in under-voltage lockout
- Package Type: DIP-16, SO-16
- Supply Voltage: 7V to 40V
- Output Voltage: 5V regulated
- Output Current: Source 200mA, Sink 100mA
- Oscillator Frequency: Adjustable from 1kHz to 300kHz
- Operating Temperature Range: 0°C to +70°C
- Dimensions: Standard DIP-16 or SO-16 package
- Switching Power Supplies
- DC-DC Converters
- Voltage Regulators
- Battery Chargers
- Inverters
- Motor Control Systems
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