Features

•

Universal AC Main Input voltage range : 90 VAC to 264 VAC

•

Output range: 5 V - 3 A continuous operation

•

Constant voltage (CV) and constant current (CC) operation with CC primary

sensing

•

Input power in standby < 10 mW at 230 VAC

•

Average efficiency: > 81.84%, complies with EuCoC rev. 5 – Tier 2 and EPS of

DOE USA

•

EMI: According to EN55022-Class

•

Small form factor: (44 x 35 x 15 mm)

•

RoHS compliant

•

WEEE compliant

Description

The STEVAL-ISA193V2 evaluation board implements a 15 W USB adapter with

primary sensing CC feature, based on the STCH02 current mode controller designed

for offline quasi-resonant flyback converters, capable of providing constant output

current (CC) regulation using primary-sensing feedback.

The IC embeds a 650 V, non-dissipative, HV startup cell, which, along with the

extremely low quiescent current and burst-mode management, helps minimize

residual input consumption, thus achieving less than 10 mW under no-load

conditions.

The adapter is designed to meet the most stringent energy saving recommendations

(EuCoC rev. 5 – Tier 2 and EPS of DOE USA) as well as EN55022-Class-B

Conducted noise emissions.

The extremely small form factor and the output USB connector makes this reference

design suitable for small USB chargers and adapters for mobile phones, tablets and

other hand held equipment

Product summary

15 W, 5 V - 3 A

output CC primary

sensing USB

adapter based on

STCH02

STEVAL-ISA193V2

Offline PWM quasi

resonant controller

for ultra-low standby

power supplies

STCH02

N-channel 800 V,

0.95 Ohm typ., 6 A

MDmesh K5 Power

MOSFET in DPAK

package

STD7N80K5

Field effect rectifier

FERD20U60DJFD

15 W, 5 V - 3 A output CC primary sensing USB adapter based on STCH02

STEVAL-ISA193V2

Data brief

DB3752 - Rev 1 - November 2018

For further information contact your local STMicroelectronics sales office.

www.st.com