This demonstration board is based on the new VIPER17 device and implements a standard single-output isolated flyback converter operating at fixed frequency that can be 115 kHz or 60 kHz.
The VIPER17 device integrates in the same package two components: an advanced PWM controller with built-in BCD6 technology and an 800 V avalanche rugged vertical power MOSFET.
The proposed solution has the advantage of using few external components compared to a discrete solution, providing several protections and very low standby consumption in no-load condition.
The protections present on the device such as overload and output overvoltage protections, secondary winding short-circuit protection, hard transformer saturation and brownout protections improve the reliability and safety of the design.
The frequency jittering, that is inside implemented, helps to meet the standards regarding electromagnetic disturbance.
| Manufacturer | STMicroelectronics |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | AC/DC SMPS - Single Output |
| Eval Board |
Board not Stocked
|
| AC Voltage |
115 V
230 V Universal (115 / 230V) |
| Outputs and Type |
1 Isolated
|
| Voltage Out |
12 V
|
| Current Out |
500 mA
|
| Output Power |
6 W
|
| Features |
Frequency Jitter for EMI
Over Voltage Protection Short Circuit Protection Under Voltage Protection, Brown-Out |
| Efficiency @ Conditions |
>79%, 120V in, 12V @ 125 ~ 500 mA
>76%, 230V in, 12V @ 250 ~ 500 mA |
| No-load Input Power @ Voltage |
57 mW @ 115 V
88 mW @ 230 V |
| Switching Frequency |
60 ~ 115 kHz
|
| Internal Switch |
Yes
|
| Component Count + Extras |
37 + 3
|
| Voltage In |
90 ~ 265 VAC
|
| Design Author |
STMicroelectronics
|
| Application / Target Market |
DVD/Blu-ray Players
LCD TV / Monitor Power: Auxiliary Power Supply Set-Top Boxes White Goods |
| Main I.C. Base Part |
VIPer17H
|
| Date Created By Author | |
| Date Added To Library | 2011-03 |
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