TIDA-00434, Simple and Robust Bias Power Supply with Low Standby for Home Appliances
Reference Design using part UCC28722DBV by Texas Instruments
Image
1 / 4
For End Products
- Clothes Dryer
- Industrial
- Refrigerator and freezer
- Washer
Description
- TIDA-00434, Simple and Robust Bias Power Supply with Low Standby for Home Appliances. This reference design is a multiple output (12V, 3.3V/5V), 2.4W bias power supply for home appliances using a low cost Quasi-resonant PWM controller. The design supports conversion of wide range DC input ranging from 90V DC to 425V DC or AC input ranging from 85V AC to 300V AC to standard power rails of 12V and 3.3V/5V. TIDA-00434 is able to achieve reduced switching losses, using a buck power stage operating in discontinuous mode with valley switching. The design offers high efficiency (>70%) and low stand-by power of <100mW when system is in idle mode. The design uses low cost external 800V BJT as a switch providing higher operating voltage margin
Key Features
-
Conversion TypeAC to DC
-
Input Voltage85 to 300 (AC) V
-
Output Voltage3.3|5|12 V
-
Output Power2.4 W
-
Efficiency70 %
-
TopologyBuck
Featured Parts (3)
| Part Number | Manufacturer | Type | Description | |||
|---|---|---|---|---|---|---|
|
UA78L05ACPK | Texas Instruments | Linear Regulators | LDO Regulator Pos 5V 0.1A 4-Pin(3+Tab) SOT-89 T/R | Buy | |
|
UCC28722DBVT | Texas Instruments | AC to DC Switching Converters | AC to DC Switching Converter Flyback 23V 89kHz T/R 6-Pin SOT-23 | Buy | |
|
|
UCC28722DBVR | Texas Instruments | AC to DC Switching Converters | AC to DC Switching Converter Flyback 23V 89kHz T/R 6-Pin SOT-23 | Buy | |