STEVAL-SMACH15V1: 15W, 5V @ 3A, USB PD Adapter

Summary

The STEVAL-SMACH15V1 USB adapter evaluation board is based on the STCH03 offline PWM controller for low standby adapters. The controller can provide constant output current (CC) regulation using primary sensing feedback.

The device combines a high-performance low-voltage PWM controller chip and a 650 V HV start-up cell in the same package. It also features extremely low quiescent current and burst-mode management. These features help minimize residual input consumption to less than 15 mW under no-load conditions.

The device offers output overvoltage protection (OVP) and over-temperature protection (OTP). It also offers Hiccup-mode protection for when the transformer saturates or the secondary diode fails short, and an output UVP protection that limits the average output current when an output short circuit occurs.

The adapter satisfies energy saving recommendations (EuCoC rev. 5 – Tier 2 and EPS of DOE USA) and EN55022-Class-B Conducted noise emissions. The small form factor and the output USB connector renders the design suitable for small USB chargers and adapters for mobile phones, tablets and other handheld equipment.

Constant voltage (CV) and constant current (CC) operation with CC primary sensing
Input power in standby <15 mW at 230 VAC
Power Saving: EuCoC rev. 5 – Tier 2
EMI Compliant: According to EN55022-Class-B
Small form factor: 44x35x15 mm

Specifications

Manufacturer	STMicroelectronics
Category	Power Management
Sub-Category	USB Power Delivery
Eval Board Part Number	497-18113-ND
Eval Board Supplier	STMicroelectronics
Eval Board	Normally In Stock
Port Role	Source
Voltage In	90 ~ 265 VAC
Voltage Out	5 V
Port Current	3 A
Power Out	15 W
Features	Hiccup-mode Protection Over Voltage Protection (OVP) Short Circuit Protection Thermal Protection Under Voltage Protection, Brownout (UVP)
No-load Input Power @ Voltage	12.1 mW @ 115 VAC 12.3 mW @ 230 VAC
Compliance	EN55022 Class B (Conducted Emission Requirements) EU CoC ver. 5 - Tier 2 IEC61000-4-2 (ESD Immunity Test) IEC61000-4-4 (Burst Immunity Test) IEC61000-4-5 (Surge Immunity Test)
Efficiency @ Conditions	>85%, 230V in, 5V @ 9 ~ 15 W >84%, 115V in, 5V @ 3 ~ 14 W
Component Count + Extras	43 + 2
Design Author	STMicroelectronics
Main I.C. Base Part	STCH03TR
Date Created By Author	2018-07
Date Added To Library	2021-02