STEVAL-ISA119V1：1.5 W double output buck demonstration board based on the VIPER16LD
The STEVAL-ISA119V1 is a dual output buck demonstration board using the VIPER16LD, a new off-line high voltage converter by STMicroelectronics which has been specifically developed for non-isolated SMPS.
Output regulation is easily achieved through a voltage divider to the output voltage.
The VIPER16LD can work with or without an external supply. In the former case, very low standby consumption is possible(< 50 mW at 265 Vac) while in the latter case, the cost and complication of the IC supply network may be reduced.
The other features of the device include an 800 V avalanche-rugged power section, PWM operation at 60 kHz with frequency jittering for lower EMI, limiting current with adjustable set point, on-board soft-start and safe auto-restart after a fault condition.
The available protection features are thermal shutdown with hysteresis and delayed overload protection.
Key Features
- Input voltage range (VIN
): 90 VRMS
to 265 VRMS
- Output voltage 1 (VOUT1
)= 12 V
- Max output current 1: (IOUT1
) = 0.1 A
- Output voltage 2: (VOUT2
) = 5 V (through LDO)
- Max output current 2: (IOUT2
)= 0.05 A
- Precision of output regulation ΔVOUT_LF
= ±5%
- High frequency output voltage ripple ΔVOUT_HF
= 50 mV
- Max ambient operating temperature TA
= 60 °C
Product Specifications
Application Notes
Board Manufacturing Specifications
Bill of Materials
Schematic Packs
License Agreement
Sample & Buy
| Part Number | Core Product | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| STEVAL-ISA119V1 | VIPER16H | 56.35 | 1 | NEC | EAR99 | ITALY |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|
| STEVAL-ISA119V1 | CARD | Industrial | Ecopack2 | |
