TNY5073K
Integrated offline switcher with EcoSmart Technology, unleashing up to 175 W output and achieves 92% efficiency in classic flyback architecture
Product Details
The TinySwitch-5 IC is an integrated switched mode power supply IC that monitors an analog feedback current at the control input to modulate the variable frequency variable current control.
The TinySwitch-5 flyback controller can operate in continuous conduction mode (CCM) or discontinuous conduction mode (DCM). The controller consists of a frequency jitter oscillator, a current limit controller, 5 V regulator on the BYPASS pin, BYPASS undervoltage and overvoltage detection circuit, an input line sensing circuit, current limit selection circuitry, over-temperature protection, leading edge blanking, and a silicon MOSFET power switch.
Product Highlights
Highly Integrated, Compact Footprint
- Robust 725 V silicon MOSFET provides excellent surge withstand
- Switching frequency up to 150 kHz minimizes transformer size
EcoSmart™ – Energy Efficient
- High efficiency across the load range
- Less than 30 mW no-load power at 230 VAC including line sense
- Up to 210 mW output power for 300 mW input (230 VAC)
- Lossless primary current sensing
Reduced Part Count, Design Flexibility
- Frequency jitter reduces EMI filter size
- Integrated soft-start minimizes start-up stress
- Adjustable switching frequency
- ILIM selection without extra components
Extensive Protection
- Auto-restart limits power delivery to <3% during overload faults
- Output short-circuit, overload and overvoltage protection
- Line undervoltage (UV) detection prevents turn-off glitching
- Simple, fast AC reset
- Line overvoltage (OV) shutdown increases protection from line surge
- Accurate thermal shutdown with large hysteresis (OTP)
Applications
- Auxiliary, standby and bias power supplies for appliances, and consumer products
- Utility meter, smart grid and industrial power supplies
Specifications
| Output Power (Max) - Open Frame, 230V | 45.00 W |
| Output Power (Max) - Open Frame, Univ | 30.00 W |
| Output Power (Max) - Peak, 380V | 50.00 W |
| Output Power (Max) - Continuous, 380V | 50.00 W |
| Switching Frequency (max) | 150 kHz |
| Breakdown Voltage | 725 V |
| Voltage - Input (Min) | 85 V |
| Voltage - Input (Max) | 265 V |
| Voltage Input (Max, DC) | 500.00V |
| Auto-Restart & Overvoltage Response | Auto-restart |
| IC Package | eSOP-12B |
| Internal Switch | Yes |
| Mounting Type | Surface Mount |
| Over-Temperature Response | Hysteretic |
| Temperature - Operating (Min) | -40 °C |
| Temperature - Operating (Max) | 150 °C |
| Control Scheme | Secondary-side |
| Control Features |
Selectable Current Limit
Frequency Jittering
Programmable Switching Frequency
Soft Start
|
| Protection Features |
Input Overvoltage
Input Undervoltage
Output Overvoltage
Output Short Circuit
Thermal Foldback
|
| Output Profile | CV |
| Topology | Flyback |
| Product Sub-Type | PMIC |
| MSL Rating | 3 |
