Technical Specifications
Parameters and characteristics for this part
| Specification | L6566BH |
|---|---|
| Control Features | Soft Start |
| Duty Cycle | 75 % |
| Fault Protection | Over Load, Current Limiting |
| Frequency - Switching [Max] | 300 kHz |
| Frequency - Switching [Min] | 10 kHz |
| Internal Switch(s) | False |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Isolation | Isolated |
| Package / Case | 16-SOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 16-SO |
| Topology | Flyback |
| Voltage - Start Up | 14 V |
| Voltage - Supply (Vcc/Vdd) [Max] | 23 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 8 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 1.84 | |
| 10 | $ 1.65 | |||
| 50 | $ 1.56 | |||
| 100 | $ 1.33 | |||
| 250 | $ 1.25 | |||
| 500 | $ 1.09 | |||
| 1000 | $ 0.90 | |||
| 2500 | $ 0.84 | |||
| 5000 | $ 0.81 | |||
Description
General part information
L6566BH Series
The L6566BH is an extremely versatile current-mode primary controller IC, specifically designed for high-performance offline flyback converters running off rectified 3-phase input lines. It is also suited to single-stage, single-switch, input-current-shaping converters (single-stage PFC) for applications that must comply with EN61000-3-2 or JEITA-MITI regulations.
Both fixed-frequency (FF) and quasi-resonant (QR) operation are supported. The user can choose either of the two depending on application needs. The device features an externally programmable oscillator: it defines the converter switching frequency in FF mode and the maximum allowed switching frequency in QR mode.
When FF operation is selected, the ICs work as a standard current-mode controller with a maximum duty cycle limited to 70% min. The oscillator frequency can be modulated to mitigate EMI emissions.
Documents
Technical documentation and resources