STMicroelectronics STCH03TR, PWM Controller, 23 V, 196 kHz 8-Pin, SO8

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RS Stock No.:
175-1176
Mfr. Part No.:
STCH03TR
Brand:
STMicroelectronics
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Brand

STMicroelectronics

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

Maximum Operating Supply Voltage

23 V

Minimum Operating Temperature

-40 °C

Maximum Operating Temperature

+150 °C

Minimum Operating Supply Voltage

11.5 V

COO (Country of Origin):
CN
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