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

Technical Reference
Legislation and Compliance
RoHS Certificate of 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.

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

Specifications
Attribute Value
Maximum Switching Frequency 196 kHz
Start-up Supply Current 0.9mA
Maximum Supply Current 2.9 mA
Zero Power Detection Yes
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
Maximum Operating Temperature +150 °C
Minimum Operating Supply Voltage 11.5 V
Minimum Operating Temperature -40 °C
Input Voltage 11.5 → 23V
Output Voltage 13 V
Number of Outputs 1
50 In stock for FREE next working day delivery
Price Each (In a Pack of 10)
£ 0.924
(exc. VAT)
£ 1.109
(inc. VAT)
Units
Per unit
Per Pack*
10 - 90
£0.924
£9.24
100 - 990
£0.726
£7.26
1000 +
£0.481
£4.81
*price indicative
Packaging Options:
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