No | Part number | Description ( Function ) | Manufacturers | |
19 | IW1677 | Low-Power Off-Line Digital Green-Mode PWM Controller iW1677 Low-Power Off-Line Digital Green-Mode PWM Controller 1 Description The iW1677 is a high performance AC/DC power supply controller which uses digital control technology to build peak current mode PWM flyback power supplies. The device together with an external active device (depletion mode NFET or NPN BJT) provides a fast start-up without compromising no-load power loss. |
Dialog Semiconductor |
|
18 | IW1678 | Low-Power Off-line Digital Green-Mode PWM Controller iW1678 Low-Power Off-line Digital Green-Mode PWM Controller 1.0 Features 2.0 Description ●● Primary-side feedback eliminates opto-isolators and simplifies design ●● 64-kHz PWM switching frequency ●● No-load power consumption < 100 mW at 230 Vac with tight dynamic load transient response ●● Able to meet < 30 mW no-load power consumption with large value pre-lo |
iWatt |
|
17 | IW1688 | Low Power Off Line Digital PWM Controller iW1688 Low-Power Off-line Digital PWM Controller 1.0 Features • • • • • • • • • • • Primary-side feedback eliminates opto-isolators and simplifies design Multi-mode operation for highest overall efficiency ±4% typical output voltage regulation No external compensation components required Complies with CEC/EPA no load power consumpti |
iWatt |
|
16 | IW1689 | Low-Power Off-line Digital PWM Controller Not Recommended For New Designs iW1689 Low-Power Off-line Digital PWM Controller 1.0 Features • Primary-side feedback eliminates opto-isolators and simplifies design • Multi-mode operation for highest overall efficiency • Very tight output voltage regulation • No external compensation components required • Complies with CEC/EPA/IEC no load power consumption and |
iWatt |
|
15 | IW1690 | Low-Power Off-line Digital PWM Controller Not Recommended For New Designs iW1690 Low-Power Off-line Digital PWM Controller 1.0 Features • Primary-side feedback eliminates opto-isolators and simplifies design • Direct drive of BJT switching device • Multi-mode operation for highest overall efficiency • Built-in cable drop compensation • Very tight output voltage regulation • No external compensation |
iWatt |
|
14 | IW1691 | Digital PWM Current-Mode Controller iW1691 Digital PWM Current-Mode Controller for Quasi-Resonant Operation 1.0 Features ●● Primary-side feedback eliminates opto-isolators and simplifies design ●● Quasi-resonant operation for highest overall efficiency ●● EZ-EMI ® design to easily meet global EMI standards ●● Up to 130 kHz switching frequency enables small adapter size ●● Built-in cable drop |
iWatt |
List of most widely used semiconductors
Part Number | Function | Manufacturers | |
1N4007 | The 1N4007 is a rectification diode that is designed for high-voltage applications, typically up to 1000V. It has a maximum current rating of 1A and a forward voltage drop of around 0.7V. |
Vishay |
|
LM317 | This is a popular adjustable voltage regulator. |
ON Semiconductor |
|
6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |