STCMB1
ActiveTRANSITION MODE (TM) PFC WITH X-CAP DISCHARGE AND LLC RESONANT COMBO CONTROLLER
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STCMB1
ActiveTRANSITION MODE (TM) PFC WITH X-CAP DISCHARGE AND LLC RESONANT COMBO CONTROLLER
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Technical Specifications
Parameters and characteristics for this part
| Specification | STCMB1 |
|---|---|
| Frequency - Switching | 500 kHz |
| Mode | Discontinuous (Transition) |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 C |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SO |
| Voltage - Supply [Max] | 20 V |
| Voltage - Supply [Min] | 10 VDC |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
Description
General part information
STCMB1 Series
The STCMB1 device embodies a transition mode (TM) PFC, a high voltage double-ended controller for LLC resonant half-bridge, an 800 V-rated high voltage section and the glue logic that supervises the operation of these three blocks.
The PFC section uses a proprietary constant on-time control methodology that does not require a sinusoidal input reference, thereby reducing the system cost and external component count.
It includes also a complete set of protections: a cycle-by-cycle overcurrent (OCP), an output overvoltage (OVP), a feedback failure (FFP, latch-mode), an ac brown-out, boost inductor saturation and inrush current detection both at the start-up and after mains sags or missing cycles.
Documents
Technical documentation and resources
