STEVAL-ISA193V1:15 W, 5 V- 3 A output CC primary sensing USB adapter based on STCH02

The STEVAL-ISA193V1 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.

Key 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-B
  • Small form factor: (44 x 35 x 15 mm)
  • RoHS compliant
Product Specifications
DescriptionVersionSize
DB3000: 15 W, 5 V - 3 A output CC primary sensing USB adapter based on STCH021.0264 KB
Application Notes
DescriptionVersionSize
AN4896: 15 W, 5 V output USB adapter using STCH021.02 MB
Board Manufacturing Specifications
DescriptionVersionSize
STEVAL-ISA193V1 gerber files1.0376 KB
Bill of Materials
DescriptionVersionSize
STEVAL-ISA193V1 BOM1.022 KB
Schematic Packs
DescriptionVersionSize
STEVAL-ISA193V1 schematic1.041 KB
License Agreement
DescriptionVersionSize
Evaluation products license agreement1.0125 KB
Sample & Buy
Part NumberCore ProductUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STEVAL-ISA193V1STCH0249.001NECEAR99ITALY
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-ISA193V1CARDIndustrialEcopack2
15 W, 5 V - 3 A output CC primary sensing USB adapter based on STCH02 STEVAL-ISA193V1
15 W, 5 V output USB adapter using STCH02 STEVAL-ISA193V1
15 W, 5 V output USB adapter using STCH02 STEVAL-ISA193V1
15 W, 5 V output USB adapter using STCH02 STEVAL-ISA193V1
15 W, 5 V output USB adapter using STCH02 STEVAL-ISA193V1
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 ST-LINK-V2