TOP250YN Power Management chip
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Description:
The TOP250YN is an integrated offline switcher IC designed for low-power AC-DC power conversion applications. It integrates a 700 V power MOSFET, high-voltage switched current source, and control circuits into a single package. This IC operates in a primary-side regulated (PSR) topology, providing accurate output voltage regulation without the need for an optocoupler or secondary-side feedback circuitry. It is suitable for applications requiring highly efficient power conversion with minimal external components.
Key Features:
- Integrated 700 V MOSFET
- Primary-side regulation (PSR) for simplified design
- Precision internal reference for accurate output voltage regulation
- Frequency jittering reduces EMI emissions
- Auto-restart protection for overvoltage, overcurrent, and overtemperature conditions
- Built-in soft-start function for controlled startup
- Low standby power consumption
- Cycle-by-cycle current limit
- Package Type: 7-pin TO-220
- Supply Voltage (VCC): 10V to 24V
- Maximum Operating Voltage (VMAX): 700 V
- Maximum Output Power: Typically up to 35 W (depending on application)
- Frequency Range: 50 kHz to 100 kHz
- Maximum Duty Cycle: 75%
- Operating Temperature Range: -40°C to +125°C
- AC-DC power supplies for chargers and adapters
- LED lighting drivers
- Industrial power supplies
- Household appliances
- Audio and video equipment
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