STCH02 Datasheet, PDF (1/24 Pages) STMicroelectronics – Offline PWM controller for ultra-low standby adapters

STCH02
Offline PWM controller for ultra-low standby adapters
SO-8
Features
 Advanced power management for ultra-low
standby power consumptions (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
 Automatic self-supply
 Accurate and adjustable output OVP with
autorestart after fault
 Input voltage feedforward compensation for
mains-independent CC regulation
 Intelligent frequency jitter for EMI suppression
 SO-8 package
Applications
 AC-DC chargers for smartphones, tablets,
camcorders and other handheld equipment
 AC/DC adapters for STB, notebooks and
auxiliary power supplies
Datasheet - preliminary data
Description
The STCH02 is a PWM quasi resonant controller
specifically designed for ultra-low standby power
supplies.
The built-in HV startup cell with zero power
consumption, the fully integrated blocks for
primary side constant current output regulation
and the advanced power management make this
IC the best choice to build a high efficiency and
ultra-low standby consumption power supply, with
high overall and excellent dynamic performances.
Figure 1. Typical application
7PVU
"$
*/
"$
*/
(/%
;$% '# /$ )7
45$)
4&/4& (/% (% 7%%
".
Table 1. Device summary
Order code
Package
Packing
STCH02
STCH02TR
SO-8
Tube
Tube and reel
December 2015
DocID028766 Rev 1
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
1/24
www.st.com