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STMicroelectronics STCH03TR, PWM Controller 196 kHz 8-Pin, SO8

Tillfälligt slut i lager - restorder för leverans 2021-03-26
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Pris (ex. moms) Each (On a Reel of 2500)

5,523 kr

(exkl. moms)

6,904 kr

(inkl. moms)


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EnheterPer unitPer Reel*
2500 +5,523 kr13 807,50 kr
*price indicative

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.

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

Maximum Switching Frequency196 kHz
Start-up Supply Current0.9mA
Maximum Supply Current2.9 mA
Zero Power DetectionYes
Mounting TypeSurface Mount
Package TypeSO8
Pin Count8
Dimensions5 x 6.2 x 1.5mm
Maximum Operating Supply Voltage23 V
Maximum Operating Temperature+150 °C
Minimum Operating Temperature-40 °C
Minimum Operating Supply Voltage11.5 V
Output Voltage13 V
Number of Outputs1
Input Voltage11.5 → 23V