- RS Stock No.:
- 175-1176
- Mfr. Part No.:
- STCH03TR
- Manufacturer:
- STMicroelectronics
Discontinued product
- RS Stock No.:
- 175-1176
- Mfr. Part No.:
- STCH03TR
- Manufacturer:
- STMicroelectronics
Product overview and Technical data sheets
Legislation and Compliance
- COO (Country of Origin):
- CN
Product Details
The STCH03 current-mode controller is designed for an offline quasi-resonant ZVS (zero-voltage-switching at switch turn-on) flyback converter.
It combines a high-performance low-voltage PWM controller chip and a 650V HV start-up cell in the same package.
The device features a unique characteristic: it is capable of providing constant output current (CC) regulation using primary-sensing feedback. This eliminates the need for dedicated current reference IC, as well as the current sensor, still maintaining quite accurate output current regulation.
It combines a high-performance low-voltage PWM controller chip and a 650V HV start-up cell in the same package.
The device features a unique characteristic: it is capable of providing constant output current (CC) regulation using primary-sensing feedback. This eliminates the need for dedicated current reference IC, as well as the current sensor, still maintaining quite accurate output current regulation.
Advanced power management for ultra-low standby power consumption (under 10 mW at 230 VAC)
Fully integrated primary side constant current output regulation (CC)
650 V embedded HV start-up circuit with zero power consumption.
Quasi-resonant (QR) zero-voltage-switching (ZVS) operation
Accurate and adjustable output OVP with options auto-restart (STCH03) or latched (STCH03L) after fault
Output undervoltage protection (UVP) with auto-restart
Fully integrated primary side constant current output regulation (CC)
650 V embedded HV start-up circuit with zero power consumption.
Quasi-resonant (QR) zero-voltage-switching (ZVS) operation
Accurate and adjustable output OVP with options auto-restart (STCH03) or latched (STCH03L) after fault
Output undervoltage protection (UVP) with auto-restart
Specifications
Attribute | Value |
---|---|
Maximum Switching Frequency | 196 kHz |
Start-up Supply Current | 0.9mA |
Output Voltage | 13 V |
Maximum Supply Current | 2.9 mA |
Zero Power Detection | Yes |
Number of Outputs | 1 |
Mounting Type | Surface Mount |
Package Type | SO8 |
Pin Count | 8 |
Dimensions | 5 x 6.2 x 1.5mm |
Length | 5mm |
Width | 4mm |
Height | 1.5mm |
Minimum Operating Supply Voltage | 11.5 V |
Maximum Operating Supply Voltage | 23 V |
Maximum Operating Temperature | +150 °C |
Minimum Operating Temperature | -40 °C |